# HW03 參考答案

## 3.1 Bible

Credit: 41247039S 韓Ｏ劭 (modified)

:::spoiler hw0301.c

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>

int32_t inputString(char *str) {
    if (fgets(str, F_SIZE, stdin) == NULL) {
        if (fgetc(stdin) == EOF) {
            printf("myfile: EOF detected\n");
        } else {
            perror("myfile: input error");
        }

        return 1;
    }

    if (str[strlen(str) - 1] == '\n') {
        str[strlen(str) - 1] = '\0';
    }

    return 0;
}

int32_t openFile(FILE **file, char *fileName, char *mode) {
    *file = fopen(fileName, mode);

    if (*file == NULL) {
        char err[F_SIZE] = {0};
        snprintf(err, F_SIZE, "myfile: '%s' error", fileName);
        perror(err);

        return 1;
    }

    return 0;
}

void closeFile(FILE *file) {
    if (file == NULL) {
        return;
    }

    fclose(file);
}

int32_t searchText(FILE *file, char *search) {
    if (file == NULL || search == NULL) {
        printf("mybible: Error input\n");
        return 1;
    }

    Bible bible = {NULL, 0};
    BibleText temp = { 0, 0, {0}, {0} };

    while (readBibleText(file, &temp) == 0) {
        if (hasSearchText(temp.text, search)) {
            addBibleText(&bible, &temp);
        }
    }

    printBibleText(&bible);

    freeBible(&bible);
    return 0;
}

int32_t readBibleText(FILE *file, BibleText *text) {
    if (feof(file)) {
        return 0;
    }

    text->chapter = 0;
    text->verse   = 0;

    text->text[0] = 0;
    text->id[0]   = 0;

    char format[] = "{\"chapter\":%d,\"verse\":%d,\"text\":\"%[^\"]\",\"translation_id\":\"%*[^\"]\",\"book_id\":\"%[^\"]\",\"book_name\":\"%*[^\"]\"}";

    int32_t fs = fscanf(file, format, &(text->chapter), &(text->verse), &(text->text), &(text->id));

    if (fs != 4) {
        return 1;
    }

    fgetc(file);

    return 0;
}

int32_t addBibleText(Bible *bible, BibleText *text) {
    int32_t idx = bible->size;
    bible->size++;

    if (idx == 0) {
        bible->text = (BibleText *) calloc(bible->size, sizeof(BibleText));
    } else {
        bible->text = (BibleText *) reallocarray(bible->text, bible->size, sizeof(BibleText));
    }

    bible->text[idx].verse   = text->verse;
    bible->text[idx].chapter = text->chapter;

    strcpy(bible->text[idx].text, text->text);
    strcpy(bible->text[idx].id,   text->id);

    return 1;
}

bool hasSearchText(char *text, char *search) {
    size_t i = 0;

    while (i < strlen(text)) {
        if (!isSameChar(text[i], search[0])) {
            i++;
            continue;
        }

        size_t k = 0;

        while (k < strlen(search)) {
            if (i + k >= strlen(text) || !isSameChar(text[i+k], search[k])) {
                break;
            }

            k++;
        }

        if (k == strlen(search)) {
            return true;
        }

        i += k;
    }

    return false;
}

bool isSameChar(char a, char b) {
    if (a >= 'A' && a <= 'Z') {
        a += 'a' - 'A';
    }

    if (b >= 'A' && b <= 'Z') {
        b += 'a' - 'A';
    }

    return (a == b);
}

void printBibleText(Bible *bible) {
    printf("Found %d time(s)\n", bible->size);

    if (bible->size == 0) {
        return;
    }

    for (int32_t i = 0; i < bible->size; i++) {
        BibleText *tmp = &(bible->text[i]);
        printf("%d. %s %d:%d %s\n", i+1, tmp->id, tmp->chapter, tmp->verse, tmp->text);
    }
}

void freeBible(Bible *bible) {
    if (bible->size == 0) {
        return;
    }

    free(bible->text);
    bible->text = NULL;

    return;
}


int main() {
    FILE *file = NULL;
    char fileName[] = "bible.txt";
    char search[F_SIZE] = {0};

    if (openFile(&file, fileName, "r")) {
        return 1;
    }

    printf("Please enter the search target: ");

    if (inputString(search)) {
        return 1;
    }

    if (searchText(file, search)) {
        printf("Search text error\n");
        return 1;
    }

    return 0;
}

:::

## 3.2 Function Tracer

Credit: 41247027S 陳Ｏ羽

:::spoiler hw0302.c

#include <stdio.h>
#include<stdlib.h>
#include<stdint.h>
#include<getopt.h>
#include<unistd.h>
#include<string.h>

struct option long_option[] = {
    {"help",0,NULL,'h'},
    {"include",1,NULL,'i'},
    {"function",1,NULL,'f'},
    {"linum",0,NULL,'l'},
    {"code",0,NULL,'c'},
    {0,0,0,0}
};

typedef struct{
    int32_t line;
    char text[1000];
}FuncPos;

int32_t checktype(char *str){
    if(strstr(str,"size_t")!=NULL||strstr(str,"void")!=NULL||strstr(str,"int")!=NULL||strstr(str,"short")!=NULL||strstr(str,"long")!=NULL||strstr(str,"float")!=NULL||strstr(str,"double")!=NULL||strstr(str,"char")!=NULL)
        return 1;
    else
        return 0;
}

int32_t checkchar(char *str){
    if((*str == '_'||(*str>='a'&&*str<='z')||(*str>='A'&&*str<='Z')||(*str>='0'&&*str<='9')))
        return 1;
    else
        return 0;
}

int32_t FindPositionOfStr(char *str,char word){
    for(int32_t i=0;str[i]!='\0';i++){
        if(str[i] == word)
            return i;
    }
}

int32_t FindFunc(char *func,FILE* pFile,FuncPos funcPos[]){
    int32_t line = 0,cnt=0,anno_status=0;
    char str[1000];
    while(!feof(pFile)){
        line++;
        fgets(str,1000,pFile);
        char *tmp,*anno;
        if((anno = strstr(str,"*/"))!=NULL){
            if((tmp = strstr(str,func))!=NULL){
                if(strlen(tmp)<strlen(anno)){
                    tmp--;
                    if(!checkchar(tmp)){
                        tmp += strlen(func) +1;
                        if(!checkchar(tmp)){
                            funcPos[cnt].line = line;
                            strcpy(funcPos[cnt].text,str);
                            cnt++;
                        }
                    }
                }
            }
            anno_status =0;
            continue;
        }
        if(anno_status==1)
            continue;
        if((anno = strstr(str,"//"))!=NULL){
            if((tmp = strstr(str,func))!=NULL){
                if(strlen(tmp)>strlen(anno)){
                    tmp--;
                    if(!checkchar(tmp)){
                        tmp += strlen(func) +1;
                        if(!checkchar(tmp)){
                            funcPos[cnt].line = line;
                            strcpy(funcPos[cnt].text,str);
                            cnt++;
                        }
                    }
                }
            }
        }
        else if((anno = strstr(str,"/*"))!=NULL){
            if((tmp = strstr(str,func))!=NULL){
                if(strlen(tmp)>strlen(anno)){
                    tmp--;
                    if(!checkchar(tmp)){
                        tmp += strlen(func) +1;
                        if(!checkchar(tmp)){
                            funcPos[cnt].line = line;
                            strcpy(funcPos[cnt].text,str);
                            cnt++;
                        }
                    }
                }
            }
            anno_status =1;
        }
        else if((tmp = strstr(str,func))!=NULL){
            tmp--;
            if(!checkchar(tmp)){
                tmp += strlen(func) +1;
                if(!checkchar(tmp)){
                    funcPos[cnt].line = line;
                    strcpy(funcPos[cnt].text,str);
                    cnt++;
                }
            }
        }
    }
    return cnt;
}



int main(int argc, char *argv[]){
    int32_t func=0,include=0;
    for(int i=1;i<argc;i++){
        if((strcmp(argv[i],"-f")==0&&strstr(argv[i],"-f")!=NULL)||(strcmp(argv[i],"--function")==0&&strstr(argv[i],"--function")!=NULL))
            func = 1;
        else if((strcmp(argv[i],"-i")==0&&strstr(argv[i],"-i")!=NULL)||(strcmp(argv[i],"--include")==0&&strstr(argv[i],"--include")!=NULL))
            include = 1;
    }
    if(func&&include){
        printf("Wrong input!\n");
        return 0;
    }
    int32_t option=0,opt_i=0,opt_f=0,opt_h=0,opt_l=0,opt_c=0,index=1;
    char header[100],function[100];
    while((option = getopt_long(argc,argv,"i:f:hlc",long_option,NULL))!=-1){
        if(option == 'i'){
            opt_i = 1;
            strcpy(header,optarg);
            if(!strstr(argv[index],optarg))
                index++;
            if(*(argv[index+1])!='-'){
                int32_t check=0;
                for(int i=index+1;i<argc;i++){
                    if(*(argv[i])=='-')
                        check=1;
                }
                if(check){
                    printf("Wrong Input!\n");
                    return 0;
                }
            }
        }
        else if(option == 'f'){
            opt_f = 1;
            strcpy(function,optarg);
            if(!strstr(argv[index],optarg))
                index++;
            if(*(argv[index+1])!='-'){
                int32_t check=0;
                for(int i=index+1;i<argc;i++){
                    if(*(argv[i])=='-')
                        check=1;
                }
                if(check){
                    printf("Wrong Input!\n");
                    return 0;
                }
            }
        }
        else if(option == 'h'){
            if(*(argv[index+1])!='-'){
                int32_t check=0;
                for(int i=index+1;i<argc;i++){
                    if(*(argv[i])=='-')
                        check=1;
                }
                if(check){
                    printf("Wrong Input!\n");
                    return 0;
                }
            }
            opt_h=1;
        }
        else if(option == 'l'){
            if(*(argv[index+1])!='-'){
                int32_t check=0;
                for(int i=index+1;i<argc;i++){
                    if(*(argv[i])=='-')
                        check=1;
                }
                if(check){
                    printf("Wrong Input!\n");
                    return 0;
                }
            }
            opt_l=1;
        }
        else if(option == 'c'){
            if(*(argv[index+1])!='-'){
                int32_t check=0;
                for(int i=index+1;i<argc;i++){
                    if(*(argv[i])=='-')
                        check=1;
                }
                if(check){
                    printf("Wrong Input!\n");
                    return 0;
                }
            }
            opt_c=1;
        }
        else if(option == '?'){
            printf("Unknown option: %c\n", optopt);
            return 0;
        }
        index++;
    }
    if(opt_h){
        printf("Usage: hw0302 [options] ... [files] ...\n  -f, --function=func   Trace the func usage in [Files].\n  -i, --include=File    Trace all functions listed in the header file in [\n   Files].\n  -l, --linum       Display the line number.\n  -c, --code        Display the code.\n  -h, --help        Display this information and exit.\n\n-F and -I are exclusive and must be at least one.\n");
        return 0;
    }
    else if(opt_f==0&&opt_i==0){
        printf("Wrong input!\n");
        return 0;
    }
    if(opt_f){
        printf("%s:\n",function);
        while(index<argc){
            FuncPos funcPos[1000];
            int32_t line = 0,cnt=0;
            char cfile[100];
            FILE *cFile;
            strcpy(cfile,argv[index]);
            if((cFile = fopen(cfile,"rw"))==NULL){
                perror("Could not open the file");
                index++;
                continue;
            }
            
            cnt = FindFunc(function,cFile,funcPos);
            printf("  %s (count: %d)\n",cfile,cnt);
            if(opt_l&&opt_c){
                for(int32_t i=0;i<cnt;i++)
                    printf("    line %d:    %s",funcPos[i].line,funcPos[i].text);
            }
            else if(opt_l){
                for(int32_t i=0;i<cnt;i++)
                    printf("    line %d\n",funcPos[i].line);
            }
            else if(opt_c){
                for(int32_t i=0;i<cnt;i++)
                    printf("%s",funcPos[i].text);
            }
            index++;
            fclose(cFile);
        }
    }
    else if(opt_i){
        FILE *hFile,*cFile;
        if((hFile = fopen(header,"rw"))==NULL){
                perror("Could not open the file");
                return 0;
        }
        char cfile[100],str[1000];
        while(!feof(hFile)){
            FuncPos funcPos[1000];
            int32_t cnt =0;
            fgets(str,1000,hFile);
            if(checktype(str)){
                char *tmp;
                if((tmp = strstr(str,"("))!=NULL){
                    while(!checkchar(tmp))
                        tmp--;
                    int32_t leng=0;
                    while(checkchar(tmp)){
                        leng++;
                        tmp--;
                    }
                    char *funcName;
                    funcName = calloc(leng+1,sizeof(char));
                    funcName[leng] = '\0';
                    tmp++;
                    for(int i=0;i<leng;i++,tmp++)
                        funcName[i] = *tmp;
                    printf("%s:\n",funcName);
                    for(int32_t i=index;i<argc;i++){
                        strcpy(cfile,argv[i]);
                        if((cFile = fopen(cfile,"rw"))==NULL){
                            perror("Could not open the file");
                            continue;
                        }
                    
                        cFile = fopen(cfile,"rw");
                        cnt = FindFunc(funcName,cFile,funcPos);
                        printf("  %s (count: %d)\n",cfile,cnt);
                        if(opt_l&&opt_c){
                            for(int32_t i=0;i<cnt;i++)
                                printf("    line %d:%s",funcPos[i].line,funcPos[i].text);
                        }
                        else if(opt_l){
                            for(int32_t i=0;i<cnt;i++)
                                printf("    line %d\n",funcPos[i].line);
                        }
                        else if(opt_c){
                            for(int32_t i=0;i<cnt;i++)
                                printf("%s",funcPos[i].text);
                        }
                        fclose(cFile);
                    }
                }
            }
        }
    }

    return 0;
}

## 3.3 Image Steganography

## 3.4 Game Cheater

:::spoiler 41171216H 石Ｏ軒

#include<stdio.h>
#include<stdint.h>
#include<stdlib.h>
#include<string.h>
#include<fcntl.h>
#include<unistd.h>

#include<sys/types.h>
#include<sys/stat.h>
#include<sys/mman.h>

struct Item {
	uint8_t status; // 狀態值，40=裝備中、00=持有中、80=無物品
	uint8_t itemId; // 物品編號
};


//總共有80byte
typedef struct _Character {
    uint8_t XX; // X座標
    uint8_t YY; // Y座標
    uint8_t Z1; // 人物圖形
    uint8_t Z2; // 人物圖形方向
    uint8_t Z3; // 人物圖形跑步動作
    uint8_t AA; // 動作狀態
    uint8_t BB; // 陣營
    uint8_t FA; // 肖像編號
    uint16_t NN; // 人物姓名，假設名字最長不超過15個字符
    struct Item IT[8]; // 物品列表
    uint8_t magic[5]; // 法術列表
    uint8_t RA; // 種族編號
    uint8_t CL; // 職業編號
    uint8_t LV; // 等級
    uint8_t A_plus; // AP增強狀態
    uint8_t D_plus; // DP增強狀態
    uint8_t H_plus; // HIT/EV增強狀態
    uint8_t sub_H; // 中毒狀態
    uint8_t XA; // 麻痺狀態
    uint8_t XM; // 封咒狀態
    uint8_t space_1[15]; //空15格
    uint16_t MT; // 力量
    uint16_t DF; // 耐力
    uint8_t MV; // 移動力
    uint8_t EX; // 經驗值
    uint8_t space_2; //空1格
    uint16_t DX; // 速度
    uint16_t H1; // 目前生命值
    uint16_t H2; // 最大生命值
    uint16_t M1; // 目前法力值
    uint16_t M2; // 最大法力值
    uint16_t AP; // 目前總攻擊力
    uint16_t DP; // 目前總防禦力
    uint16_t HT; // 命中率
    uint16_t EV; // 閃避率
}__attribute__ ((__packed__)) character;


//印出角色
void print_character(int32_t character_id);

//印出道具
int32_t print_item(int32_t item_id);

//印出可改數值
void print_change();
	
//清空螢幕
void clearScreen(){
printf("\033[2J\033[1;1H");
}

int main(int argc,char *argv[]){
	//如果只有輸入1個 就顯示使用方式
	if(argc==1){
	printf("Usage: sudo ./hw0304 pid addr\n");
	return 0;
	}
	
	
	//ps aux | grep dosbox 可以抓pid
	//home/seanshih/hw3/dosgame/fd2
	
	
	
	//把pid address存下來
	uint64_t address;
	if(argc==3){
	int32_t pid=-1;
	sscanf(argv[1],"%d",&pid);
		if(pid==-1){
		printf("error: wrong pid.\n");
		return 0;
		}
	address=strtoull(argv[2],NULL,16);
	}
	else{
	printf("Usage: sudo ./hw0304 pid addr\n");
	return 0;
	}
	
	
    //先抓檔案名稱
	char fileName[1000]={0};
	strcpy(fileName,"/proc/");
	strcat(fileName,argv[1]);
	strcat(fileName,"/mem");
	//printf("%s\n",fileName);    
	//printf("%ld\n",address); 
	printf("資料讀取中...."); 
	
	//////重要線索 角色前面int32_t=7685
	
	///fopen
	//開啟檔案
	FILE *pfile=NULL;
	if((pfile=fopen(fileName,"rb+"))==NULL){
		printf("file is not open!\n");
		return 0;
	}
	
	while(1){
	//設定檔案大小
	uint64_t file_size=16*1024*1024;
	//創一個角色列表
	int32_t character_list[100];
	//初始化
	for(int32_t i=0;i<100;i++){
	character_list[i]=-1;
	}
	//有幾個角色
	int32_t all_character_size=0;
	
	
	//開始抓位置
	uint64_t start;
	int32_t search_id=7685;
	int32_t search;
	FILE *now_pos=pfile;
	
	for(uint64_t i=0;i<file_size;i++){
		//搜尋到最後了
		if(i+79>=file_size){
		break;
		}
	fseek(now_pos,address+i,SEEK_SET);
	fread(&search,sizeof(int32_t),1,now_pos);
		if(search==search_id){
		start=i+address+4;
			//開始把角色抓下來
			while(1){
			character temp;
			fread(&temp,sizeof(character),1,now_pos);
			//printf("(%d,%d)\n",temp.XX,temp.YY);
			//printf("BB=%d\n",temp.BB);
				//如果是敵方就不抓角色
				if(temp.BB==1 || temp.BB==2){
				character_list[all_character_size]=temp.FA;
				all_character_size++;
				}
				else{
				break;
				}
			}
		break;
		}
	}
	
	if(all_character_size==0){
	clearScreen();
	printf("現在沒有可更改角色！\n");
	break;
	}
	
	/////開始改狀態/////
	char clear;
	//開始界面
	clearScreen();
	printf("歡迎來到炎龍騎士團2 修改器!\n");
	
	//選擇角色
	int32_t choose_character=-1;
	int32_t end=0;
	printf("下面是可選擇的角色:\n");
	
	for(int32_t j=0;j<20;j++){
	int32_t check_in_i=0;
		for(int32_t i=0;i<all_character_size;i++){
			if(i*20+j>=all_character_size){
			break;
			}
		check_in_i=1;
		printf("%2d.",i*20+j+1);
		print_character(character_list[i*20+j]);
		}
	if(check_in_i==0){
	break;
	}
	printf("\n");
	}
	
	
	printf("請輸入要改的角色編號，如要結束請輸入0: ");
	scanf("%d",&choose_character);
	//清除緩存區
	while((clear=getchar())!='\n' && clear!=EOF);
	clearScreen();
	//如果輸出錯誤就重新選
	if(choose_character<0 || choose_character>all_character_size){
	printf("沒有這個角色！\n");
	continue;
	}
	//如果是0就結束
	if(choose_character==0){
	break;
	}
		//開始改資料
		while(1){
		//讀取角色資料 //刷新
		fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
		character now_character;
		fread(&now_character,sizeof(character),1,now_pos);
		//printf("(%d,%d)\n",now_character.XX,now_character.YY);
		int32_t choose_change;
		//選擇要改什麼資料
		printf("下面是可改變的數值:\n");
		print_change();
		printf("請選擇要改的數值(1-8)，如要結束請輸入0，如要重新選擇角色請輸入-1: ");
		scanf("%d",&choose_change);
		//清除緩存區
		while((clear=getchar())!='\n' && clear!=EOF);
		clearScreen();
			//如果輸出錯誤就重選
			if(choose_change<-1 || choose_change>8){
			printf("沒有這個選項！\n");
			continue;
			}
			//如果是0就結束
			if(choose_change==0){
			end=1;
			break;
			}
			//如果是-1就回上頁
			if(choose_change==-1){
			clearScreen();
			printf("資料讀取中...."); 
			break;
			}
			//開始處理資料
			
			//HP
			if(choose_change==1){
				while(1){
				int32_t now_HP;
				printf("請輸入HP要改成多少(0-65535)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_HP);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_HP<-1 || now_HP>65535){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_HP==-1){
					clearScreen();
					break;
					}
				//改H1
				now_character.H1=now_HP;
				//改H2
				now_character.H2=now_HP;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//MP
			if(choose_change==2){
				while(1){
				int32_t now_MP;
				printf("請輸入MP要改成多少(0-65535)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_MP);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_MP<-1 || now_MP>65535){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_MP==-1){
					clearScreen();
					break;
					}
				//改M1
				now_character.M1=now_MP;
				//改M2
				now_character.M2=now_MP;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//MT
			if(choose_change==3){
				while(1){
				int32_t now_MT;
				printf("請輸入MT要改成多少(0-65535)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_MT);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_MT<-1 || now_MT>65535){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_MT==-1){
					clearScreen();
					break;
					}
				//改MT
				now_character.MT=now_MT;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//DF
			if(choose_change==4){
				while(1){
				int32_t now_DF;
				printf("請輸入DF要改成多少(0-65535)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_DF);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_DF<-1 || now_DF>65535){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_DF==-1){
					clearScreen();
					break;
					}
				//改DF
				now_character.DF=now_DF;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//MV
			if(choose_change==5){
				while(1){
				int32_t now_MV;
				printf("請輸入MV要改成多少(0-255)(最好25以內)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_MV);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_MV<-1 || now_MV>255){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_MV==-1){
					clearScreen();
					break;
					}
				//改MV
				now_character.MV=now_MV;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//EX
			if(choose_change==6){
				while(1){
				int32_t now_EX;
				printf("請輸入EX要改成多少(0-255)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_EX);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_EX<-1 || now_EX>255){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_EX==-1){
					clearScreen();
					break;
					}
				//改EX
				now_character.EX=now_EX;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//DX
			if(choose_change==7){
				while(1){
				int32_t now_DX;
				printf("請輸入DX要改成多少(0-65535)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_DX);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_DX<-1 || now_DX>65535){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_DX==-1){
					clearScreen();
					break;
					}
				//改DX
				now_character.DX=now_DX;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//道具
			if(choose_change==8){
			int32_t change_page=1;
			
				while(1){
				//秀出道具 //先選道具
				printf("第%d頁\n",change_page);
				for(int32_t j=0;j<15;j++){
				int32_t check_in_i=0;
					for(int32_t i=0;i<60;i++){
						if(i*15+j+60*(change_page-1)>=60*change_page){
						break;
						}
					printf("%3d.",i*15+j+60*(change_page-1));
					check_in_i=print_item(i*15+j+60*(change_page-1));
						if(check_in_i==0){
						printf("\033[0;31m無\033[m      ");
						}
					}
				printf("\n");
				}
				
				int32_t now_item;
				printf("請輸入要替換的物品編號，上一頁請輸入-3 ，下一頁請輸入-2，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_item);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
				//回上頁
				if(now_item==-3){
					if(change_page==1){
					clearScreen();
					printf("沒有上一頁了！\n");
					}
					else{
					clearScreen();
					change_page--;
					}
				continue;
				}
				//下一頁
				if(now_item==-2){
					if(change_page==4){
					clearScreen();
					printf("沒有下一頁了！\n");
					}
					else{
					clearScreen();
					change_page++;
					}
				continue;
				}
				//如果是-1就回上頁
				if(now_item==-1){
				clearScreen();
				break;
				}
				//如果輸出錯誤就重新輸入
				if((now_item<-3 || now_item>214) || (now_item>=108 && now_item<=122) || (now_item>=125 && now_item<=126) ){
				printf("輸入沒有代表物品或指令！\n");
				continue;
				}
				
				//要換哪一格
				while(1){
				int32_t which;
					printf("你要將\"   ");
					print_item(now_item);
					printf("\"替換成哪一格呢？\n");
					printf("現在背包狀態:\n");
					for(int32_t j=0;j<8;j++){
						if(now_character.IT[j].status==128){
						printf("%d.\033[0;31m無\033[m\n",j+1);
						}
						else{
						printf("%d.",j+1);
						print_item(now_character.IT[j].itemId);
						printf("\n");
						}
					}
					printf("請輸入要替換的背包位置編號，如要重新選擇物品請輸入-1: ");
					scanf("%d",&which);
					//清除緩存區
					while((clear=getchar())!='\n' && clear!=EOF);
					clearScreen();
					//如果是-1就回上頁
					if(which==-1){
					clearScreen();
					break;
					}
					//如果輸出錯誤就重新輸入
					if(which<1 || which>8){
					printf("沒有這一格！\n");
					continue;
					}
					now_character.IT[which-1].status=0;
					now_character.IT[which-1].itemId=now_item;
					fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
					fwrite(&now_character,sizeof(character),1,now_pos);
				break;
				}	
				printf("已儲存更改！\n");
				break;
				}
			}
			
			
			
		
		
		}
		if(end==1){
		break;
		}
	}
	
	
//結束
printf("再見！\n");
fclose(pfile);
return 0;
}


void print_character(int32_t character_id){

	switch(character_id){
		case 0:
			printf("索爾              ");
			break;
		case 1:
			printf("哈諾              ");
			break;
		case 2:
			printf("鐵諾              ");
			break;
		case 3:
			printf("哈瓦特            ");
			break;
		case 4:
			printf("亞雷斯            ");
			break;
		case 5:
			printf("洛娜              ");
			break;
		case 6:
			printf("萊汀              ");
			break;
		case 7:
			printf("蘭斯洛特          ");	
			break;
		case 8:
			printf("希莉亞            ");	
			break;
		case 9:
			printf("悠妮              ");	
			break;
		case 10:
			printf("瑪琳              ");	
			break;
		case 11:
			printf("索菲亞            ");	
			break;
		case 12:
			printf("凱麗              ");	
			break;
		case 13:
			printf("貝克威            ");	
			break;
		case 14:
			printf("珊                ");	
			break;
		case 15:
			printf("賽可邦勒          ");	
			break;
		case 16:
			printf("凱拉斯            ");	
			break;
		case 17:
			printf("米亞斯多德        ");	
			break;
		case 18:
			printf("蜜蒂              ");	
			break;
		case 19:
			printf("羅德曼            ");	
			break;
		case 20:
			printf("莎拉              ");	
			break;
		case 21:
			printf("約拿              ");	
			break;
		case 22:
			printf("卡里斯            ");	
			break;
		case 23:
			printf("羅蘭              ");	
			break;
		case 24:
			printf("希爾法            ");	
			break;
		case 25:
			printf("謝多              ");	
			break;
		case 26:
			printf("聖寇拉斯          ");	
			break;
		case 27:
			printf("巴拿羅西亞        ");	
			break;
		case 28:
			printf("達克賽            ");	
			break;
		case 29:
			printf("亞奇梅吉          ");	
			break;
		case 30:
			printf("蓋亞              ");	
			break;
		case 31:
			printf("渥德              ");	
			break;
		case 32:
			printf("索爾(劍聖)        ");	
			break;
		case 33:
			printf("哈諾(聖戰士)      ");	
			break;
		case 34:
			printf("鐵諾(劍聖)        ");	
			break;
		case 35:
			printf("哈瓦特(聖戰士)    ");	
			break;
		case 36:
			printf("亞雷斯(聖戰士)    ");	
			break;
		case 37:
			printf("洛娜(聖戰士)      ");	
			break;
		case 38:
			printf("萊汀(聖戰士)      ");	
			break;
		case 40:
			printf("希莉亞(狙擊手)    ");	
			break;
		case 41:
			printf("悠妮(大法師)      ");	
			break;
		case 42:
			printf("瑪琳(祭司)        ");	
			break;
		case 43:
			printf("索菲亞(祭司)      ");	
			break;
		case 44:
			printf("凱麗(鬥士)        ");	
			break;
		case 45:
			printf("貝克威(狙擊手)    ");	
			break;
		case 46:
			printf("珊(大法師)        ");	
			break;
		case 47:
			printf("賽可邦勒(鬥士)    ");	
			break;
		case 49:
			printf("米亞斯多德(龍劍士)");	
			break;
		case 50:
			printf("索爾(英雄)        ");	
			break;
		case 51:
			printf("哈諾(魔戰士)      ");	
			break;
		case 52:
			printf("悠妮(召喚師)      ");	
			break;
		case 53:
			printf("哈瓦特(魔戰士)    ");	
			break;
		case 54:
			printf("亞雷斯(龍騎士)    ");	
			break;
		case 55:
			printf("洛娜(龍騎士)      ");	
			break;
		case 56:
			printf("萊汀(龍騎士)      ");	
			break;
		case 58:
			printf("希莉亞(神射手)    ");	
			break;
		case 59:
			printf("悠妮(聖者)        ");	
			break;
		case 60:
			printf("瑪琳(聖者)        ");	
			break;
		case 61:
			printf("索菲亞(聖者)      ");	
			break;
		case 62:
			printf("凱麗(武聖)        ");	
			break;
		case 63:
			printf("貝克威(神射手)    ");	
			break;
		case 64:
			printf("珊(聖者)          ");	
			break;
		case 65:
			printf("賽可邦勒(武聖)    ");	
			break;
		default:
			return;
	}
return;
}

int32_t print_item(int32_t item_id){

	switch(item_id){
		case 0:
			printf("短劍      ");
			return 1;
		case 1:
			printf("闊劍      ");
			return 1;
		case 2:
			printf("長劍      ");
			return 1;
		case 3:
			printf("巨劍      ");
			return 1;
		case 4:
			printf("黑暗劍    ");
			return 1;
		case 5:
			printf("戰士劍    ");
			return 1;
		case 6:
			printf("巨魔劍    ");
			return 1;
		case 7:
			printf("斬鐵劍    ");	
			return 1;
		case 8:
			printf("流水劍    ");	
			return 1;
		case 9:
			printf("大地之劍  ");	
			return 1;
		case 10:
			printf("龍神劍    ");	
			return 1;
		case 11:
			printf("炎龍劍    ");	
			return 1;
		case 12:
			printf("小刀      ");	
			return 1;
		case 13:
			printf("匕首      ");	
			return 1;
		case 14:
			printf("淬毒刀    ");	
			return 1;
		case 15:
			printf("盜賊匕首  ");	
			return 1;
		case 16:
			printf("暗殺刀    ");	
			return 1;
		case 17:
			printf("護手刀    ");	
			return 1;
		case 18:
			printf("忍者刀    ");	
			return 1;
		case 19:
			printf("地獄刀    ");	
			return 1;
		case 20:
			printf("刺矛      ");	
			return 1;
		case 21:
			printf("騎槍      ");	
			return 1;
		case 22:
			printf("長戟      ");	
			return 1;
		case 23:
			printf("先鋒矛    ");	
			return 1;
		case 24:
			printf("斬馬刀    ");	
			return 1;
		case 25:
			printf("惡魔之矛  ");	
			return 1;
		case 26:
			printf("黃金之戟  ");	
			return 1;
		case 27:
			printf("龍之槍    ");	
			return 1;
		case 28:
			printf("破魔槍    ");	
			return 1;
		case 29:
			printf("戰神戟    ");	
			return 1;
		case 30:
			printf("聖之槍    ");	
			return 1;
		case 31:
			printf("巨神戟    ");	
			return 1;
		case 32:
			printf("手斧      ");	
			return 1;
		case 33:
			printf("迴旋斧    ");	
			return 1;
		case 34:
			printf("戰斧      ");	
			return 1;
		case 35:
			printf("戰鎚      ");	
			return 1;
		case 36:
			printf("巨斧      ");	
			return 1;
		case 37:
			printf("血之斧    ");	
			return 1;
		case 38:
			printf("閃電鎚    ");	
			return 1;
		case 39:
			printf("狂暴之斧  ");	
			return 1;
		case 40:
			printf("光之斧    ");	
			return 1;
		case 41:
			printf("力量之斧  ");	
			return 1;
		case 42:
			printf("大地之鎚  ");	
			return 1;
		case 43:
			printf("魔神斧    ");	
			return 1;
		case 44:
			printf("短弓      ");	
			return 1;
		case 45:
			printf("長弓      ");	
			return 1;
		case 46:
			printf("黑暗弓    ");	
			return 1;
		case 47:
			printf("巨弓      ");	
			return 1;
		case 48:
			printf("精靈弓    ");	
			return 1;
		case 49:
			printf("狙擊弓    ");	
			return 1;
		case 50:
			printf("封魔弓    ");	
			return 1;
		case 51:
			printf("風神弓    ");	
			return 1;
		case 52:
			printf("長棍      ");	
			return 1;
		case 53:
			printf("釘頭鎚    ");	
			return 1;
		case 54:
			printf("巨鎚      ");	
			return 1;
		case 55:
			printf("槤枷      ");	
			return 1;
		case 56:
			printf("魔法杖    ");	
			return 1;
		case 57:
			printf("封咒杖    ");	
			return 1;
		case 58:
			printf("力之杖    ");	
			return 1;
		case 59:
			printf("黑暗杖    ");	
			return 1;
		case 60:
			printf("龍之杖    ");	
			return 1;
		case 61:
			printf("光之杖    ");	
			return 1;
		case 62:
			printf("鐵指套    ");	
			return 1;
		case 63:
			printf("鐵爪      ");	
			return 1;
		case 64:
			printf("皇帝指環  ");	
			return 1;
		case 65:
			printf("毒爪      ");	
			return 1;
		case 66:
			printf("殭屍爪    ");	
			return 1;
		case 67:
			printf("碎岩爪    ");	
			return 1;
		case 68:
			printf("金鋼指環  ");	
			return 1;
		case 69:
			printf("裂刃爪    ");	
			return 1;
		case 70:
			printf("巨神指環  ");	
			return 1;
		case 71:
			printf("魔龍爪    ");	
			return 1;
		case 72:
			printf("威力手臂  ");	
			return 1;
		case 73:
			printf("金鋼手臂  ");	
			return 1;
		case 74:
			printf("雷神手臂  ");	
			return 1;
		case 75:
			printf("衝擊手臂  ");	
			return 1;
		case 76:
			printf("光束劍    ");	
			return 1;
		case 77:
			printf("狙擊槍    ");	
			return 1;
		case 78:
			printf("光束槍    ");	
			return 1;
		case 79:
			printf("光束砲    ");	
			return 1;
		case 80:
			printf("拳頭      ");	
			return 1;
		case 81:
			printf("利爪      ");	
			return 1;
		case 82:
			printf("觸手      ");	
			return 1;
		case 83:
			printf("巨岩手臂  ");	
			return 1;
		case 84:
			printf("激水砲    ");	
			return 1;
		case 85:
			printf("風牙斬    ");	
			return 1;
		case 86:
			printf("魔燄波    ");	
			return 1;
		case 87:
			printf("空雷震    ");	
			return 1;
		case 88:
			printf("聖者之戒  ");	
			return 1;
		case 89:
			printf("勇者徽章  ");	
			return 1;
		case 90:
			printf("精靈契印  ");	
			return 1;
		case 91:
			printf("領悟之書  ");	
			return 1;
		case 92:
			printf("心眼之書  ");	
			return 1;
		case 93:
			printf("白金徽章  ");	
			return 1;
		case 94:
			printf("生命之實  ");	
			return 1;
		case 95:
			printf("魔力水晶  ");	
			return 1;
		case 96:
			printf("風精之羽  ");	
			return 1;
		case 97:
			printf("十字弓    ");	
			return 1;
		case 98:
			printf("水晶弓    ");	
			return 1;
		case 99:
			printf("雷神鞭    ");	
			return 1;
		case 100:
			printf("天空之鑰  ");	
			return 1;
		case 101:
			printf("傳送法杖  ");	
			return 1;
		case 102:
			printf("修理套件  ");	
			return 1;
		case 103:
			printf("火焰      ");	
			return 1;
		case 104:
			printf("火神弓    ");	
			return 1;
		case 105:
			printf("鬥神指環  ");	
			return 1;
		case 106:
			printf("冰焰      ");	
			return 1;
		case 107:
			printf("黑暗波    ");	
			return 1;
		case 123:
			printf("巨岩鎧    ");	
			return 1;
		case 124:
			printf("魔神甲    ");	
			return 1;
		case 127:
			printf("魔岩鎧    ");	
			return 1;
		case 128:
			printf("布衣      ");	
			return 1;
		case 129:
			printf("旅行裝    ");	
			return 1;
		case 130:
			printf("精靈披風  ");	
			return 1;
		case 131:
			printf("元素護體  ");	
			return 1;
		case 132:
			printf("皮甲      ");	
			return 1;
		case 133:
			printf("硬皮甲    ");	
			return 1;
		case 134:
			printf("夜行裝    ");	
			return 1;
		case 135:
			printf("魔法皮甲  ");	
			return 1;
		case 136:
			printf("盜賊之衣  ");	
			return 1;
		case 137:
			printf("忍者裝    ");	
			return 1;
		case 138:
			printf("潛行服    ");	
			return 1;
		case 139:
			printf("神祕裝    ");	
			return 1;
		case 140:
			printf("暗殺服    ");	
			return 1;
		case 141:
			printf("黑暗之衣  ");	
			return 1;
		case 142:
			printf("惡魔皮甲  ");	
			return 1;
		case 143:
			printf("雷神服    ");	
			return 1;
		case 144:
			printf("環狀甲    ");	
			return 1;
		case 145:
			printf("鎖子甲    ");	
			return 1;
		case 146:
			printf("鱗甲      ");	
			return 1;
		case 147:
			printf("連環鋼甲  ");	
			return 1;
		case 148:
			printf("合金鎖甲  ");	
			return 1;
		case 149:
			printf("魔法鱗甲  ");	
			return 1;
		case 150:
			printf("血環甲    ");	
			return 1;
		case 151:
			printf("金鋼鎖甲  ");	
			return 1;
		case 152:
			printf("黑暗鱗甲  ");	
			return 1;
		case 153:
			printf("力量鎖甲  ");	
			return 1;
		case 154:
			printf("惡魔鱗甲  ");	
			return 1;
		case 155:
			printf("龍鱗甲    ");	
			return 1;
		case 156:
			printf("鎧甲      ");	
			return 1;
		case 157:
			printf("銀鎧甲    ");	
			return 1;
		case 158:
			printf("魔法鎧甲  ");	
			return 1;
		case 159:
			printf("重鎧甲    ");	
			return 1;
		case 160:
			printf("地獄鎧甲  ");	
			return 1;
		case 161:
			printf("聖鎧甲    ");	
			return 1;
		case 162:
			printf("大地鎧甲  ");	
			return 1;
		case 163:
			printf("龍神鎧甲  ");	
			return 1;
		case 164:
			printf("長袍      ");	
			return 1;
		case 165:
			printf("法師袍    ");	
			return 1;
		case 166:
			printf("僧侶袍    ");	
			return 1;
		case 167:
			printf("祭師袍    ");	
			return 1;
		case 168:
			printf("聖者袍    ");	
			return 1;
		case 169:
			printf("霧之袍    ");	
			return 1;
		case 170:
			printf("黑暗之袍  ");	
			return 1;
		case 171:
			printf("天之袍    ");	
			return 1;
		case 172:
			printf("武道服    ");	
			return 1;
		case 173:
			printf("武鬥裝    ");	
			return 1;
		case 174:
			printf("鬥士服    ");	
			return 1;
		case 175:
			printf("武者鎧甲  ");	
			return 1;
		case 176:
			printf("妖魔鬥服  ");	
			return 1;
		case 177:
			printf("武神鬥服  ");	
			return 1;
		case 178:
			printf("戰鬥裝甲  ");	
			return 1;
		case 179:
			printf("突擊裝甲  ");	
			return 1;
		case 180:
			printf("重裝甲    ");	
			return 1;
		case 181:
			printf("特殊裝甲  ");	
			return 1;
		case 182:
			printf("硬皮      ");	
			return 1;
		case 183:
			printf("青色硬皮  ");	
			return 1;
		case 184:
			printf("龍鱗      ");	
			return 1;
		case 185:
			printf("勒皮      ");	
			return 1;
		case 186:
			printf("虛無護甲  ");	
			return 1;
		case 187:
			printf("王袍      ");	
			return 1;
		case 188:
			printf("鬥士護甲  ");	
			return 1;
		case 189:
			printf("地之袍    ");	
			return 1;
		case 190:
			printf("水之袍    ");	
			return 1;
		case 191:
			printf("大地裝甲  ");	
			return 1;
		case 192:
			printf("草藥      ");	
			return 1;
		case 193:
			printf("回復劑    ");	
			return 1;
		case 194:
			printf("再生藥    ");	
			return 1;
		case 195:
			printf("神聖之水  ");	
			return 1;
		case 196:
			printf("解毒劑    ");	
			return 1;
		case 197:
			printf("退麻藥    ");	
			return 1;
		case 198:
			printf("力量藥水  ");	
			return 1;
		case 199:
			printf("耐力藥水  ");	
			return 1;
		case 200:
			printf("速度藥水  ");	
			return 1;
		case 201:
			printf("綠寶石    ");	
			return 1;
		case 202:
			printf("紅寶石    ");	
			return 1;
		case 203:
			printf("藍寶石    ");	
			return 1;
		case 204:
			printf("鑽石      ");	
			return 1;
		case 205:
			printf("飛龍卵    ");	
			return 1;
		case 206:
			printf("魔法水    ");	
			return 1;
		case 207:
			printf("水晶粒    ");	
			return 1;
		case 208:
			printf("控制中樞  ");	
			return 1;
		case 209:
			printf("黃金徽章  ");	
			return 1;
		case 210:
			printf("星之眼    ");	
			return 1;
		case 211:
			printf("光之眼    ");	
			return 1;
		case 212:
			printf("暗之眼    ");	
			return 1;
		case 213:
			printf("冰之眼    ");	
			return 1;
		case 214:
			printf("火之眼    ");	
			return 1;
		default:
			return 0;
	}



return 0;
}
//印出可改數值
void print_change(){
	printf("1.HP\n");
	printf("2.MP\n");
	printf("3.MT\n");
	printf("4.DF\n");
	printf("5.MV\n");
	printf("6.EX\n");
	printf("7.DX\n");
	printf("8.item\n");
return;
}

:::

## 3.3 Image Steganography

:::spoiler 41171216H 石Ｏ軒

#include<stdio.h>
#include<stdint.h>
#include<stdlib.h>
#include<string.h>
#include<getopt.h>

#include<sys/types.h>
#include<sys/stat.h>
#include<sys/mman.h>
#include<fcntl.h>
#include<unistd.h>


struct _BMP_header
{
    char bm[2];
    uint32_t size;
    uint32_t reserve;
    uint32_t offset;
    uint32_t header_size;
    int32_t	width;
    int32_t	height;
    uint16_t planes;
    uint16_t bpp;
    uint32_t compression;
    uint32_t bitmap_size;
    uint32_t hres;
    uint32_t vres;
    uint32_t used;
    uint32_t important;
}__attribute__ ((__packed__));

typedef struct _BMP_header BMP_header;


//建立選項列表
struct option long_options[]={
	{"write",0,NULL,'w'},
	{"extract",0,NULL,'e'},
	{"bits",1,NULL,'b'},
	{0,0,0,0},
};


//一格像素
typedef struct _pixel{
	uint8_t blue;
	uint8_t green;
	uint8_t red;
}__attribute__ ((__packed__)) pixel;


//抓bit
int32_t get_bit(uint8_t byte,int32_t n){
	return (byte>>n) & 1;
}

int main(int argc,char *argv[]){
	
	int32_t active_w=0;
	int32_t active_e=0;
	int32_t active_b=0;
	
	for(int32_t i=0;i<argc;i++){
		//擋一開始就輸入檔案
		if((strncmp(argv[i],"-",1)!=0) && i==1){
		printf("error.\n");
		return 0;
		}
		//擋中間錯誤輸入 w e
		if(((strncmp(argv[i],"-w",2)==0)||(strncmp(argv[i],"-e",2)==0)||(strcmp(argv[i],"--write")==0)||(strcmp(argv[i],"--extract")==0)) && (i+2<argc)){
			//如果下一個不是
			if((strncmp(argv[i+1],"-",1)!=0)){
				//如果後面有"-"是錯誤
				for(int32_t j=i+2;j<argc;j++){
					if((strncmp(argv[j],"-",1)==0)){
					printf("error.\n");
					return 0;
					}
				}
			}
		}
		//擋中間錯誤輸入 b
		if((strncmp(argv[i],"-b",2)==0) && (i+3<argc)){
			//有黏東西
			if(strlen(argv[i])>2 && (i+2<argc)){
				//如果第2個不是"-"
				if((strncmp(argv[i+1],"-",1)!=0)){
					//如果後面有"-"是錯誤
					for(int32_t j=i+2;j<argc;j++){
						if((strncmp(argv[j],"-",1)==0)){
						printf("error.\n");
						return 0;
						}
					}
				}
			}
			//沒黏東西
			else if(strlen(argv[i])==2 && (i+3<argc)){
				//如果第2個不是"-"
				if((strncmp(argv[i+2],"-",1)!=0)){
					//如果後面有"-"是錯誤
					for(int32_t j=i+3;j<argc;j++){
						if((strncmp(argv[j],"-",1)==0)){
						printf("error.\n");
						return 0;
						}
					}
				}
			}
		}
		//擋中間錯誤輸入 bits
		if(strncmp(argv[i],"--bits",6)==0){
			//有黏東西
			if(strlen(argv[i])>6 && (i+2<argc)){
				//如果第2個不是"-"
				if((strncmp(argv[i+1],"-",1)!=0)){
					//如果後面有"-"是錯誤
					for(int32_t j=i+2;j<argc;j++){
						if((strncmp(argv[j],"-",1)==0)){
						printf("error.\n");
						return 0;
						}
					}
				}
			}
			//沒黏東西
			else if(strlen(argv[i])==6 && (i+3<argc)){
				//如果第2個不是"-"
				if((strncmp(argv[i+2],"-",1)!=0)){
					//如果後面有"-"是錯誤
					for(int32_t j=i+3;j<argc;j++){
						if((strncmp(argv[j],"-",1)==0)){
						printf("error.\n");
						return 0;
						}
					}
				}
			}
		}
	}
	
	int32_t now_option=0;
	int32_t catch_bits=-1;
	
	//抓選項
	while((now_option=getopt_long(argc,argv,"web:",long_options,NULL))!=-1){
		switch(now_option){
			case 'w':
				active_w=1;
				break;
			case 'e':
				active_e=1;
				break;
			case 'b':
				if(strlen(optarg)>1){
				printf("error.\n");
				return 0;
				}
				sscanf(optarg,"%d",&catch_bits);
				if(catch_bits<1 || catch_bits>8){
				printf("error.\n");
				return 0;
				}
				else{
				active_b=1;
				}
				break;
			case '?':
				printf("error.\n");
				return 0;
				break;
			default:
				printf("error.\n");
				return 0;
				break;		
		}
	}
	
	//printf("catch_bits=%d\n",catch_bits);
	if(active_b==0){
	catch_bits=1;
	}
	
	//w和 e不能同時出現 
	if(active_w==0 && active_e==0){
	printf("error.\n");
	return 0;
	}
	
	//w和 e不能同時出現 
	if(active_w==1 && active_e==1){
	printf("error: w and e can't appear at the same time.\n");
	return 0;
	}
	
	//抓完選項後只能剩下兩個
	if(argc-optind<2){
	printf("error:no file or no secret data.\n");
	return 0;
	}
	if(argc-optind>2){
	printf("error:unkown data.\n");
	return 0;
	}
	//抓bmp檔案名稱
	char bmp_name[1000]={0};
	strcpy(bmp_name,argv[optind]);
	//printf("%s\n",bmp_name);
	
	//檢查副檔名
	if(bmp_name[0]==0){
	printf("error!\n");
	return 0;	
	}
	char *vicename;
	if((vicename=strrchr(bmp_name,'.'))==NULL){
		printf("error!\n");
		return 0;
	}
	if(strcmp(vicename,".bmp")!=0){
		printf("error!\n");
		return 0;
	}
	
	//抓secret data檔案名稱
	char secret_data_name[1000]={0};
	strcpy(secret_data_name,argv[optind+1]);
	
	//開啟bmp檔案
	FILE *pfile=NULL;
	if((pfile=fopen(bmp_name,"rb+"))==NULL){
		printf("file is not open!\n");
		return 0;
	}
	//讀取header
	BMP_header header;
	fread(&header,sizeof(header),1,pfile);
	
	//檢查magic
	if(header.bm[0]!='B' || header.bm[1]!='M'){
	printf("file is not bmp!\n");
	return 0;
	}
	//設一個pixel_array
	pixel pixel_array[header.width * header.height];
	fread(pixel_array,sizeof(pixel),header.height * header.width,pfile);
	
	
	
	uint32_t one_block_size=1;
	//一區塊大小是2^bits
	for(int32_t i=0;i<catch_bits;i++){
	one_block_size*=2;
	}
	
	
	////////////////如果寫入被觸發(-w)////////////////////
	if(active_w==1){

	//開啟secret data檔案
	FILE *secret_pfile=NULL; 
	if((secret_pfile=fopen(secret_data_name,"rb"))==NULL){
		printf("file is not open!\n");
		return 0;
	}
	
	//抓secret_data的size
	int32_t fd=0;
	fd=open(secret_data_name,O_RDONLY);
	//如果沒開啟檔案
	if(fd==-1){
	printf("file is not open!\n");
	return 0;
	}
	
	struct stat file_stat;
	fstat(fd,&file_stat);
	header.reserve=file_stat.st_size;
	close(fd);
	//printf("header.reserve=%d\n",header.reserve);
	
	//開始抓檔案存進去
	uint8_t now_byte;
	uint8_t now_block=0;
	uint8_t now_size=0;
	uint8_t now_color=1;
	uint64_t now_pixel=0;
	//做一個用來清零的遮罩
	uint32_t mask=255-one_block_size+1;
	while(feof(secret_pfile)==0){
		//檢查如果secret_data到底了 把now_block後面補零直接存入
		if(fread(&now_byte,1,1,secret_pfile)!=1){
		//printf("now_block%d\n",now_block);
			//如果剛好存完就跳出
			if(now_size==0){
			break;
			}
			//假如剩下1 擴展到catch bit需要的大小 假如是3 那就變100
			else if(now_size>0 && now_size<catch_bits){
				//printf("now_block%d\n",now_block);
				for(int32_t i=0;i<catch_bits-now_size;i++){
				now_block*=2;
				}
				//printf("now_block%d\n",now_block);
				//add b
				if(now_color==1){
				//清零指定位數blue
				pixel_array[now_pixel].blue=pixel_array[now_pixel].blue & mask;
				//加入數值blue
				pixel_array[now_pixel].blue+=now_block;
				}
				//add g
				if(now_color==2){
				//清零指定位數blue
				pixel_array[now_pixel].green=pixel_array[now_pixel].green & mask;
				//加入數值blue
				pixel_array[now_pixel].green+=now_block;
				}
				//add r
				if(now_color==3){
				//清零指定位數blue
				pixel_array[now_pixel].red=pixel_array[now_pixel].red & mask;
				//加入數值blue
				pixel_array[now_pixel].red+=now_block;
				}
			}
		break;
		}
		for(int32_t i=7;i>=0;i--){
		int32_t now_bit;
		//抓bit
		now_bit=get_bit(now_byte,i);
		now_size++;
			if(now_size>1){
			now_block*=2;
			}
		now_block+=now_bit;
			if(now_size==catch_bits){
			//printf("now_block=%d\n",now_block);
				//檢查now_pixel有沒有到底了
				if(now_pixel==((header.width*header.height))){
				printf("error: the secret data is larger than the cover BMP’s hiding capacity.\n");
				fclose(secret_pfile);
				fclose(pfile);
				return 0;
				}
				//add b
				if(now_color==1){
				//清零指定位數blue
				//printf("b_o=%d\n",pixel_array[now_pixel].blue);
				pixel_array[now_pixel].blue=pixel_array[now_pixel].blue & mask;
				//printf("now_pixel%d\n",now_pixel);
				//加入數值blue
				pixel_array[now_pixel].blue+=now_block;
				//printf("b=%d\n",pixel_array[now_pixel].blue);
				}
				//add g
				if(now_color==2){
				//清零指定位數green
				//printf("g_o=%d\n",pixel_array[now_pixel].green);
				pixel_array[now_pixel].green=pixel_array[now_pixel].green & mask;
				//加入數值green
				pixel_array[now_pixel].green+=now_block;
				//printf("g=%d\n",pixel_array[now_pixel].green);
				}
				//add r
				if(now_color==3){
				//清零指定位數red
				//printf("r_o=%d\n",pixel_array[now_pixel].red);
				pixel_array[now_pixel].red=pixel_array[now_pixel].red & mask;
				//加入數值red
				pixel_array[now_pixel].red+=now_block;
				//printf("r=%d\n",pixel_array[now_pixel].red);
				}
			now_size=0;
			now_block=0;
			now_color++;
				if(now_color==4){
				now_color=1;
				now_pixel++;
				}
			}
		}
	}
	//開始寫入檔案
	fseek(pfile,0,SEEK_SET);
	fwrite(&header,sizeof(header),1,pfile);
	fwrite(pixel_array,sizeof(pixel),header.height * header.width,pfile);
	fclose(secret_pfile);
	fclose(pfile);
	}
	
		////////////////如果提取被觸發(-e)////////////////////
	if(active_e==1){
	
	if(header.reserve==0){
	printf("error: this file don't have secret_data!\n");
	return 0;
	}
	//開啟secret data檔案
	FILE *secret_pfile=NULL; 
	if((secret_pfile=fopen(secret_data_name,"wb"))==NULL){
		printf("file is not open!\n");
		return 0;
	}
	
	uint8_t now_byte;
	uint8_t now_block=0;
	uint8_t now_size=0;
	uint8_t now_color=1;
	uint64_t now_pixel=0;
	uint32_t extract_now_size=0;
		while(1){
			//先抓圖檔裡面的byte
			//讀取完了
			if(now_pixel==(header.width*header.height)){
			break;
			}
			//從pixel裡面的blue抓
			if(now_color==1){
			now_byte=pixel_array[now_pixel].blue;
			}
			//從pixel裡面的green抓
			if(now_color==2){
			now_byte=pixel_array[now_pixel].green;
			}
			//從pixel裡面的red抓
			if(now_color==3){
			now_byte=pixel_array[now_pixel].red;
			}
			now_color++;
			if(now_color==4){
			now_color=1;
			now_pixel++;
			}
		
			for(int32_t i=catch_bits-1;i>=0;i--){
			int32_t now_bit;
			//抓bit
			now_bit=get_bit(now_byte,i);
			now_size++;
				if(now_size>1){
				now_block*=2;
				}
			now_block+=now_bit;
				//如果抓了8個bit
				if(now_size==8){
				fwrite(&now_block,1,1,secret_pfile);
				//printf("now_block=%d",now_block);
				now_size=0;
				now_block=0;
				extract_now_size++;
				}
				//如果抓完了
				if(extract_now_size==header.reserve){
				//關閉檔案
				fclose(secret_pfile);
				fclose(pfile);
				return 0;
				}
			}
		}
	}
	
	
	
	
	
	
	
	
	
	
	

}

:::

## 3.4 Game Cheater

:::spoiler 41171216H 石Ｏ軒

#include<stdio.h>
#include<stdint.h>
#include<stdlib.h>
#include<string.h>
#include<fcntl.h>
#include<unistd.h>

#include<sys/types.h>
#include<sys/stat.h>
#include<sys/mman.h>

struct Item {
	uint8_t status; // 狀態值，40=裝備中、00=持有中、80=無物品
	uint8_t itemId; // 物品編號
};


//總共有80byte
typedef struct _Character {
    uint8_t XX; // X座標
    uint8_t YY; // Y座標
    uint8_t Z1; // 人物圖形
    uint8_t Z2; // 人物圖形方向
    uint8_t Z3; // 人物圖形跑步動作
    uint8_t AA; // 動作狀態
    uint8_t BB; // 陣營
    uint8_t FA; // 肖像編號
    uint16_t NN; // 人物姓名，假設名字最長不超過15個字符
    struct Item IT[8]; // 物品列表
    uint8_t magic[5]; // 法術列表
    uint8_t RA; // 種族編號
    uint8_t CL; // 職業編號
    uint8_t LV; // 等級
    uint8_t A_plus; // AP增強狀態
    uint8_t D_plus; // DP增強狀態
    uint8_t H_plus; // HIT/EV增強狀態
    uint8_t sub_H; // 中毒狀態
    uint8_t XA; // 麻痺狀態
    uint8_t XM; // 封咒狀態
    uint8_t space_1[15]; //空15格
    uint16_t MT; // 力量
    uint16_t DF; // 耐力
    uint8_t MV; // 移動力
    uint8_t EX; // 經驗值
    uint8_t space_2; //空1格
    uint16_t DX; // 速度
    uint16_t H1; // 目前生命值
    uint16_t H2; // 最大生命值
    uint16_t M1; // 目前法力值
    uint16_t M2; // 最大法力值
    uint16_t AP; // 目前總攻擊力
    uint16_t DP; // 目前總防禦力
    uint16_t HT; // 命中率
    uint16_t EV; // 閃避率
}__attribute__ ((__packed__)) character;


//印出角色
void print_character(int32_t character_id);

//印出道具
int32_t print_item(int32_t item_id);

//印出可改數值
void print_change();
	
//清空螢幕
void clearScreen(){
printf("\033[2J\033[1;1H");
}

int main(int argc,char *argv[]){
	//如果只有輸入1個 就顯示使用方式
	if(argc==1){
	printf("Usage: sudo ./hw0304 pid addr\n");
	return 0;
	}
	
	
	//ps aux | grep dosbox 可以抓pid
	//home/seanshih/hw3/dosgame/fd2
	
	
	
	//把pid address存下來
	uint64_t address;
	if(argc==3){
	int32_t pid=-1;
	sscanf(argv[1],"%d",&pid);
		if(pid==-1){
		printf("error: wrong pid.\n");
		return 0;
		}
	address=strtoull(argv[2],NULL,16);
	}
	else{
	printf("Usage: sudo ./hw0304 pid addr\n");
	return 0;
	}
	
	
    //先抓檔案名稱
	char fileName[1000]={0};
	strcpy(fileName,"/proc/");
	strcat(fileName,argv[1]);
	strcat(fileName,"/mem");
	//printf("%s\n",fileName);    
	//printf("%ld\n",address); 
	printf("資料讀取中...."); 
	
	//////重要線索 角色前面int32_t=7685
	
	///fopen
	//開啟檔案
	FILE *pfile=NULL;
	if((pfile=fopen(fileName,"rb+"))==NULL){
		printf("file is not open!\n");
		return 0;
	}
	
	while(1){
	//設定檔案大小
	uint64_t file_size=16*1024*1024;
	//創一個角色列表
	int32_t character_list[100];
	//初始化
	for(int32_t i=0;i<100;i++){
	character_list[i]=-1;
	}
	//有幾個角色
	int32_t all_character_size=0;
	
	
	//開始抓位置
	uint64_t start;
	int32_t search_id=7685;
	int32_t search;
	FILE *now_pos=pfile;
	
	for(uint64_t i=0;i<file_size;i++){
		//搜尋到最後了
		if(i+79>=file_size){
		break;
		}
	fseek(now_pos,address+i,SEEK_SET);
	fread(&search,sizeof(int32_t),1,now_pos);
		if(search==search_id){
		start=i+address+4;
			//開始把角色抓下來
			while(1){
			character temp;
			fread(&temp,sizeof(character),1,now_pos);
			//printf("(%d,%d)\n",temp.XX,temp.YY);
			//printf("BB=%d\n",temp.BB);
				//如果是敵方就不抓角色
				if(temp.BB==1 || temp.BB==2){
				character_list[all_character_size]=temp.FA;
				all_character_size++;
				}
				else{
				break;
				}
			}
		break;
		}
	}
	
	if(all_character_size==0){
	clearScreen();
	printf("現在沒有可更改角色！\n");
	break;
	}
	
	/////開始改狀態/////
	char clear;
	//開始界面
	clearScreen();
	printf("歡迎來到炎龍騎士團2 修改器!\n");
	
	//選擇角色
	int32_t choose_character=-1;
	int32_t end=0;
	printf("下面是可選擇的角色:\n");
	
	for(int32_t j=0;j<20;j++){
	int32_t check_in_i=0;
		for(int32_t i=0;i<all_character_size;i++){
			if(i*20+j>=all_character_size){
			break;
			}
		check_in_i=1;
		printf("%2d.",i*20+j+1);
		print_character(character_list[i*20+j]);
		}
	if(check_in_i==0){
	break;
	}
	printf("\n");
	}
	
	
	printf("請輸入要改的角色編號，如要結束請輸入0: ");
	scanf("%d",&choose_character);
	//清除緩存區
	while((clear=getchar())!='\n' && clear!=EOF);
	clearScreen();
	//如果輸出錯誤就重新選
	if(choose_character<0 || choose_character>all_character_size){
	printf("沒有這個角色！\n");
	continue;
	}
	//如果是0就結束
	if(choose_character==0){
	break;
	}
		//開始改資料
		while(1){
		//讀取角色資料 //刷新
		fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
		character now_character;
		fread(&now_character,sizeof(character),1,now_pos);
		//printf("(%d,%d)\n",now_character.XX,now_character.YY);
		int32_t choose_change;
		//選擇要改什麼資料
		printf("下面是可改變的數值:\n");
		print_change();
		printf("請選擇要改的數值(1-8)，如要結束請輸入0，如要重新選擇角色請輸入-1: ");
		scanf("%d",&choose_change);
		//清除緩存區
		while((clear=getchar())!='\n' && clear!=EOF);
		clearScreen();
			//如果輸出錯誤就重選
			if(choose_change<-1 || choose_change>8){
			printf("沒有這個選項！\n");
			continue;
			}
			//如果是0就結束
			if(choose_change==0){
			end=1;
			break;
			}
			//如果是-1就回上頁
			if(choose_change==-1){
			clearScreen();
			printf("資料讀取中...."); 
			break;
			}
			//開始處理資料
			
			//HP
			if(choose_change==1){
				while(1){
				int32_t now_HP;
				printf("請輸入HP要改成多少(0-65535)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_HP);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_HP<-1 || now_HP>65535){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_HP==-1){
					clearScreen();
					break;
					}
				//改H1
				now_character.H1=now_HP;
				//改H2
				now_character.H2=now_HP;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//MP
			if(choose_change==2){
				while(1){
				int32_t now_MP;
				printf("請輸入MP要改成多少(0-65535)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_MP);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_MP<-1 || now_MP>65535){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_MP==-1){
					clearScreen();
					break;
					}
				//改M1
				now_character.M1=now_MP;
				//改M2
				now_character.M2=now_MP;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//MT
			if(choose_change==3){
				while(1){
				int32_t now_MT;
				printf("請輸入MT要改成多少(0-65535)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_MT);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_MT<-1 || now_MT>65535){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_MT==-1){
					clearScreen();
					break;
					}
				//改MT
				now_character.MT=now_MT;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//DF
			if(choose_change==4){
				while(1){
				int32_t now_DF;
				printf("請輸入DF要改成多少(0-65535)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_DF);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_DF<-1 || now_DF>65535){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_DF==-1){
					clearScreen();
					break;
					}
				//改DF
				now_character.DF=now_DF;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//MV
			if(choose_change==5){
				while(1){
				int32_t now_MV;
				printf("請輸入MV要改成多少(0-255)(最好25以內)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_MV);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_MV<-1 || now_MV>255){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_MV==-1){
					clearScreen();
					break;
					}
				//改MV
				now_character.MV=now_MV;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//EX
			if(choose_change==6){
				while(1){
				int32_t now_EX;
				printf("請輸入EX要改成多少(0-255)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_EX);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_EX<-1 || now_EX>255){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_EX==-1){
					clearScreen();
					break;
					}
				//改EX
				now_character.EX=now_EX;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//DX
			if(choose_change==7){
				while(1){
				int32_t now_DX;
				printf("請輸入DX要改成多少(0-65535)，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_DX);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
					//如果輸出錯誤就重新輸入
					if(now_DX<-1 || now_DX>65535){
					printf("超出範圍！\n");
					continue;
					}
					//如果是-1就回上頁
					if(now_DX==-1){
					clearScreen();
					break;
					}
				//改DX
				now_character.DX=now_DX;
				fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
				fwrite(&now_character,sizeof(character),1,now_pos);
				printf("已儲存更改！\n");
				break;
				}
			}
			
			//道具
			if(choose_change==8){
			int32_t change_page=1;
			
				while(1){
				//秀出道具 //先選道具
				printf("第%d頁\n",change_page);
				for(int32_t j=0;j<15;j++){
				int32_t check_in_i=0;
					for(int32_t i=0;i<60;i++){
						if(i*15+j+60*(change_page-1)>=60*change_page){
						break;
						}
					printf("%3d.",i*15+j+60*(change_page-1));
					check_in_i=print_item(i*15+j+60*(change_page-1));
						if(check_in_i==0){
						printf("\033[0;31m無\033[m      ");
						}
					}
				printf("\n");
				}
				
				int32_t now_item;
				printf("請輸入要替換的物品編號，上一頁請輸入-3 ，下一頁請輸入-2，如要重新選擇數值請輸入-1: ");
				scanf("%d",&now_item);
				//清除緩存區
				while((clear=getchar())!='\n' && clear!=EOF);
				clearScreen();
				//回上頁
				if(now_item==-3){
					if(change_page==1){
					clearScreen();
					printf("沒有上一頁了！\n");
					}
					else{
					clearScreen();
					change_page--;
					}
				continue;
				}
				//下一頁
				if(now_item==-2){
					if(change_page==4){
					clearScreen();
					printf("沒有下一頁了！\n");
					}
					else{
					clearScreen();
					change_page++;
					}
				continue;
				}
				//如果是-1就回上頁
				if(now_item==-1){
				clearScreen();
				break;
				}
				//如果輸出錯誤就重新輸入
				if((now_item<-3 || now_item>214) || (now_item>=108 && now_item<=122) || (now_item>=125 && now_item<=126) ){
				printf("輸入沒有代表物品或指令！\n");
				continue;
				}
				
				//要換哪一格
				while(1){
				int32_t which;
					printf("你要將\"   ");
					print_item(now_item);
					printf("\"替換成哪一格呢？\n");
					printf("現在背包狀態:\n");
					for(int32_t j=0;j<8;j++){
						if(now_character.IT[j].status==128){
						printf("%d.\033[0;31m無\033[m\n",j+1);
						}
						else{
						printf("%d.",j+1);
						print_item(now_character.IT[j].itemId);
						printf("\n");
						}
					}
					printf("請輸入要替換的背包位置編號，如要重新選擇物品請輸入-1: ");
					scanf("%d",&which);
					//清除緩存區
					while((clear=getchar())!='\n' && clear!=EOF);
					clearScreen();
					//如果是-1就回上頁
					if(which==-1){
					clearScreen();
					break;
					}
					//如果輸出錯誤就重新輸入
					if(which<1 || which>8){
					printf("沒有這一格！\n");
					continue;
					}
					now_character.IT[which-1].status=0;
					now_character.IT[which-1].itemId=now_item;
					fseek(now_pos,start+((choose_character-1)*80),SEEK_SET);
					fwrite(&now_character,sizeof(character),1,now_pos);
				break;
				}	
				printf("已儲存更改！\n");
				break;
				}
			}
			
			
			
		
		
		}
		if(end==1){
		break;
		}
	}
	
	
//結束
printf("再見！\n");
fclose(pfile);
return 0;
}


void print_character(int32_t character_id){

	switch(character_id){
		case 0:
			printf("索爾              ");
			break;
		case 1:
			printf("哈諾              ");
			break;
		case 2:
			printf("鐵諾              ");
			break;
		case 3:
			printf("哈瓦特            ");
			break;
		case 4:
			printf("亞雷斯            ");
			break;
		case 5:
			printf("洛娜              ");
			break;
		case 6:
			printf("萊汀              ");
			break;
		case 7:
			printf("蘭斯洛特          ");	
			break;
		case 8:
			printf("希莉亞            ");	
			break;
		case 9:
			printf("悠妮              ");	
			break;
		case 10:
			printf("瑪琳              ");	
			break;
		case 11:
			printf("索菲亞            ");	
			break;
		case 12:
			printf("凱麗              ");	
			break;
		case 13:
			printf("貝克威            ");	
			break;
		case 14:
			printf("珊                ");	
			break;
		case 15:
			printf("賽可邦勒          ");	
			break;
		case 16:
			printf("凱拉斯            ");	
			break;
		case 17:
			printf("米亞斯多德        ");	
			break;
		case 18:
			printf("蜜蒂              ");	
			break;
		case 19:
			printf("羅德曼            ");	
			break;
		case 20:
			printf("莎拉              ");	
			break;
		case 21:
			printf("約拿              ");	
			break;
		case 22:
			printf("卡里斯            ");	
			break;
		case 23:
			printf("羅蘭              ");	
			break;
		case 24:
			printf("希爾法            ");	
			break;
		case 25:
			printf("謝多              ");	
			break;
		case 26:
			printf("聖寇拉斯          ");	
			break;
		case 27:
			printf("巴拿羅西亞        ");	
			break;
		case 28:
			printf("達克賽            ");	
			break;
		case 29:
			printf("亞奇梅吉          ");	
			break;
		case 30:
			printf("蓋亞              ");	
			break;
		case 31:
			printf("渥德              ");	
			break;
		case 32:
			printf("索爾(劍聖)        ");	
			break;
		case 33:
			printf("哈諾(聖戰士)      ");	
			break;
		case 34:
			printf("鐵諾(劍聖)        ");	
			break;
		case 35:
			printf("哈瓦特(聖戰士)    ");	
			break;
		case 36:
			printf("亞雷斯(聖戰士)    ");	
			break;
		case 37:
			printf("洛娜(聖戰士)      ");	
			break;
		case 38:
			printf("萊汀(聖戰士)      ");	
			break;
		case 40:
			printf("希莉亞(狙擊手)    ");	
			break;
		case 41:
			printf("悠妮(大法師)      ");	
			break;
		case 42:
			printf("瑪琳(祭司)        ");	
			break;
		case 43:
			printf("索菲亞(祭司)      ");	
			break;
		case 44:
			printf("凱麗(鬥士)        ");	
			break;
		case 45:
			printf("貝克威(狙擊手)    ");	
			break;
		case 46:
			printf("珊(大法師)        ");	
			break;
		case 47:
			printf("賽可邦勒(鬥士)    ");	
			break;
		case 49:
			printf("米亞斯多德(龍劍士)");	
			break;
		case 50:
			printf("索爾(英雄)        ");	
			break;
		case 51:
			printf("哈諾(魔戰士)      ");	
			break;
		case 52:
			printf("悠妮(召喚師)      ");	
			break;
		case 53:
			printf("哈瓦特(魔戰士)    ");	
			break;
		case 54:
			printf("亞雷斯(龍騎士)    ");	
			break;
		case 55:
			printf("洛娜(龍騎士)      ");	
			break;
		case 56:
			printf("萊汀(龍騎士)      ");	
			break;
		case 58:
			printf("希莉亞(神射手)    ");	
			break;
		case 59:
			printf("悠妮(聖者)        ");	
			break;
		case 60:
			printf("瑪琳(聖者)        ");	
			break;
		case 61:
			printf("索菲亞(聖者)      ");	
			break;
		case 62:
			printf("凱麗(武聖)        ");	
			break;
		case 63:
			printf("貝克威(神射手)    ");	
			break;
		case 64:
			printf("珊(聖者)          ");	
			break;
		case 65:
			printf("賽可邦勒(武聖)    ");	
			break;
		default:
			return;
	}
return;
}

int32_t print_item(int32_t item_id){

	switch(item_id){
		case 0:
			printf("短劍      ");
			return 1;
		case 1:
			printf("闊劍      ");
			return 1;
		case 2:
			printf("長劍      ");
			return 1;
		case 3:
			printf("巨劍      ");
			return 1;
		case 4:
			printf("黑暗劍    ");
			return 1;
		case 5:
			printf("戰士劍    ");
			return 1;
		case 6:
			printf("巨魔劍    ");
			return 1;
		case 7:
			printf("斬鐵劍    ");	
			return 1;
		case 8:
			printf("流水劍    ");	
			return 1;
		case 9:
			printf("大地之劍  ");	
			return 1;
		case 10:
			printf("龍神劍    ");	
			return 1;
		case 11:
			printf("炎龍劍    ");	
			return 1;
		case 12:
			printf("小刀      ");	
			return 1;
		case 13:
			printf("匕首      ");	
			return 1;
		case 14:
			printf("淬毒刀    ");	
			return 1;
		case 15:
			printf("盜賊匕首  ");	
			return 1;
		case 16:
			printf("暗殺刀    ");	
			return 1;
		case 17:
			printf("護手刀    ");	
			return 1;
		case 18:
			printf("忍者刀    ");	
			return 1;
		case 19:
			printf("地獄刀    ");	
			return 1;
		case 20:
			printf("刺矛      ");	
			return 1;
		case 21:
			printf("騎槍      ");	
			return 1;
		case 22:
			printf("長戟      ");	
			return 1;
		case 23:
			printf("先鋒矛    ");	
			return 1;
		case 24:
			printf("斬馬刀    ");	
			return 1;
		case 25:
			printf("惡魔之矛  ");	
			return 1;
		case 26:
			printf("黃金之戟  ");	
			return 1;
		case 27:
			printf("龍之槍    ");	
			return 1;
		case 28:
			printf("破魔槍    ");	
			return 1;
		case 29:
			printf("戰神戟    ");	
			return 1;
		case 30:
			printf("聖之槍    ");	
			return 1;
		case 31:
			printf("巨神戟    ");	
			return 1;
		case 32:
			printf("手斧      ");	
			return 1;
		case 33:
			printf("迴旋斧    ");	
			return 1;
		case 34:
			printf("戰斧      ");	
			return 1;
		case 35:
			printf("戰鎚      ");	
			return 1;
		case 36:
			printf("巨斧      ");	
			return 1;
		case 37:
			printf("血之斧    ");	
			return 1;
		case 38:
			printf("閃電鎚    ");	
			return 1;
		case 39:
			printf("狂暴之斧  ");	
			return 1;
		case 40:
			printf("光之斧    ");	
			return 1;
		case 41:
			printf("力量之斧  ");	
			return 1;
		case 42:
			printf("大地之鎚  ");	
			return 1;
		case 43:
			printf("魔神斧    ");	
			return 1;
		case 44:
			printf("短弓      ");	
			return 1;
		case 45:
			printf("長弓      ");	
			return 1;
		case 46:
			printf("黑暗弓    ");	
			return 1;
		case 47:
			printf("巨弓      ");	
			return 1;
		case 48:
			printf("精靈弓    ");	
			return 1;
		case 49:
			printf("狙擊弓    ");	
			return 1;
		case 50:
			printf("封魔弓    ");	
			return 1;
		case 51:
			printf("風神弓    ");	
			return 1;
		case 52:
			printf("長棍      ");	
			return 1;
		case 53:
			printf("釘頭鎚    ");	
			return 1;
		case 54:
			printf("巨鎚      ");	
			return 1;
		case 55:
			printf("槤枷      ");	
			return 1;
		case 56:
			printf("魔法杖    ");	
			return 1;
		case 57:
			printf("封咒杖    ");	
			return 1;
		case 58:
			printf("力之杖    ");	
			return 1;
		case 59:
			printf("黑暗杖    ");	
			return 1;
		case 60:
			printf("龍之杖    ");	
			return 1;
		case 61:
			printf("光之杖    ");	
			return 1;
		case 62:
			printf("鐵指套    ");	
			return 1;
		case 63:
			printf("鐵爪      ");	
			return 1;
		case 64:
			printf("皇帝指環  ");	
			return 1;
		case 65:
			printf("毒爪      ");	
			return 1;
		case 66:
			printf("殭屍爪    ");	
			return 1;
		case 67:
			printf("碎岩爪    ");	
			return 1;
		case 68:
			printf("金鋼指環  ");	
			return 1;
		case 69:
			printf("裂刃爪    ");	
			return 1;
		case 70:
			printf("巨神指環  ");	
			return 1;
		case 71:
			printf("魔龍爪    ");	
			return 1;
		case 72:
			printf("威力手臂  ");	
			return 1;
		case 73:
			printf("金鋼手臂  ");	
			return 1;
		case 74:
			printf("雷神手臂  ");	
			return 1;
		case 75:
			printf("衝擊手臂  ");	
			return 1;
		case 76:
			printf("光束劍    ");	
			return 1;
		case 77:
			printf("狙擊槍    ");	
			return 1;
		case 78:
			printf("光束槍    ");	
			return 1;
		case 79:
			printf("光束砲    ");	
			return 1;
		case 80:
			printf("拳頭      ");	
			return 1;
		case 81:
			printf("利爪      ");	
			return 1;
		case 82:
			printf("觸手      ");	
			return 1;
		case 83:
			printf("巨岩手臂  ");	
			return 1;
		case 84:
			printf("激水砲    ");	
			return 1;
		case 85:
			printf("風牙斬    ");	
			return 1;
		case 86:
			printf("魔燄波    ");	
			return 1;
		case 87:
			printf("空雷震    ");	
			return 1;
		case 88:
			printf("聖者之戒  ");	
			return 1;
		case 89:
			printf("勇者徽章  ");	
			return 1;
		case 90:
			printf("精靈契印  ");	
			return 1;
		case 91:
			printf("領悟之書  ");	
			return 1;
		case 92:
			printf("心眼之書  ");	
			return 1;
		case 93:
			printf("白金徽章  ");	
			return 1;
		case 94:
			printf("生命之實  ");	
			return 1;
		case 95:
			printf("魔力水晶  ");	
			return 1;
		case 96:
			printf("風精之羽  ");	
			return 1;
		case 97:
			printf("十字弓    ");	
			return 1;
		case 98:
			printf("水晶弓    ");	
			return 1;
		case 99:
			printf("雷神鞭    ");	
			return 1;
		case 100:
			printf("天空之鑰  ");	
			return 1;
		case 101:
			printf("傳送法杖  ");	
			return 1;
		case 102:
			printf("修理套件  ");	
			return 1;
		case 103:
			printf("火焰      ");	
			return 1;
		case 104:
			printf("火神弓    ");	
			return 1;
		case 105:
			printf("鬥神指環  ");	
			return 1;
		case 106:
			printf("冰焰      ");	
			return 1;
		case 107:
			printf("黑暗波    ");	
			return 1;
		case 123:
			printf("巨岩鎧    ");	
			return 1;
		case 124:
			printf("魔神甲    ");	
			return 1;
		case 127:
			printf("魔岩鎧    ");	
			return 1;
		case 128:
			printf("布衣      ");	
			return 1;
		case 129:
			printf("旅行裝    ");	
			return 1;
		case 130:
			printf("精靈披風  ");	
			return 1;
		case 131:
			printf("元素護體  ");	
			return 1;
		case 132:
			printf("皮甲      ");	
			return 1;
		case 133:
			printf("硬皮甲    ");	
			return 1;
		case 134:
			printf("夜行裝    ");	
			return 1;
		case 135:
			printf("魔法皮甲  ");	
			return 1;
		case 136:
			printf("盜賊之衣  ");	
			return 1;
		case 137:
			printf("忍者裝    ");	
			return 1;
		case 138:
			printf("潛行服    ");	
			return 1;
		case 139:
			printf("神祕裝    ");	
			return 1;
		case 140:
			printf("暗殺服    ");	
			return 1;
		case 141:
			printf("黑暗之衣  ");	
			return 1;
		case 142:
			printf("惡魔皮甲  ");	
			return 1;
		case 143:
			printf("雷神服    ");	
			return 1;
		case 144:
			printf("環狀甲    ");	
			return 1;
		case 145:
			printf("鎖子甲    ");	
			return 1;
		case 146:
			printf("鱗甲      ");	
			return 1;
		case 147:
			printf("連環鋼甲  ");	
			return 1;
		case 148:
			printf("合金鎖甲  ");	
			return 1;
		case 149:
			printf("魔法鱗甲  ");	
			return 1;
		case 150:
			printf("血環甲    ");	
			return 1;
		case 151:
			printf("金鋼鎖甲  ");	
			return 1;
		case 152:
			printf("黑暗鱗甲  ");	
			return 1;
		case 153:
			printf("力量鎖甲  ");	
			return 1;
		case 154:
			printf("惡魔鱗甲  ");	
			return 1;
		case 155:
			printf("龍鱗甲    ");	
			return 1;
		case 156:
			printf("鎧甲      ");	
			return 1;
		case 157:
			printf("銀鎧甲    ");	
			return 1;
		case 158:
			printf("魔法鎧甲  ");	
			return 1;
		case 159:
			printf("重鎧甲    ");	
			return 1;
		case 160:
			printf("地獄鎧甲  ");	
			return 1;
		case 161:
			printf("聖鎧甲    ");	
			return 1;
		case 162:
			printf("大地鎧甲  ");	
			return 1;
		case 163:
			printf("龍神鎧甲  ");	
			return 1;
		case 164:
			printf("長袍      ");	
			return 1;
		case 165:
			printf("法師袍    ");	
			return 1;
		case 166:
			printf("僧侶袍    ");	
			return 1;
		case 167:
			printf("祭師袍    ");	
			return 1;
		case 168:
			printf("聖者袍    ");	
			return 1;
		case 169:
			printf("霧之袍    ");	
			return 1;
		case 170:
			printf("黑暗之袍  ");	
			return 1;
		case 171:
			printf("天之袍    ");	
			return 1;
		case 172:
			printf("武道服    ");	
			return 1;
		case 173:
			printf("武鬥裝    ");	
			return 1;
		case 174:
			printf("鬥士服    ");	
			return 1;
		case 175:
			printf("武者鎧甲  ");	
			return 1;
		case 176:
			printf("妖魔鬥服  ");	
			return 1;
		case 177:
			printf("武神鬥服  ");	
			return 1;
		case 178:
			printf("戰鬥裝甲  ");	
			return 1;
		case 179:
			printf("突擊裝甲  ");	
			return 1;
		case 180:
			printf("重裝甲    ");	
			return 1;
		case 181:
			printf("特殊裝甲  ");	
			return 1;
		case 182:
			printf("硬皮      ");	
			return 1;
		case 183:
			printf("青色硬皮  ");	
			return 1;
		case 184:
			printf("龍鱗      ");	
			return 1;
		case 185:
			printf("勒皮      ");	
			return 1;
		case 186:
			printf("虛無護甲  ");	
			return 1;
		case 187:
			printf("王袍      ");	
			return 1;
		case 188:
			printf("鬥士護甲  ");	
			return 1;
		case 189:
			printf("地之袍    ");	
			return 1;
		case 190:
			printf("水之袍    ");	
			return 1;
		case 191:
			printf("大地裝甲  ");	
			return 1;
		case 192:
			printf("草藥      ");	
			return 1;
		case 193:
			printf("回復劑    ");	
			return 1;
		case 194:
			printf("再生藥    ");	
			return 1;
		case 195:
			printf("神聖之水  ");	
			return 1;
		case 196:
			printf("解毒劑    ");	
			return 1;
		case 197:
			printf("退麻藥    ");	
			return 1;
		case 198:
			printf("力量藥水  ");	
			return 1;
		case 199:
			printf("耐力藥水  ");	
			return 1;
		case 200:
			printf("速度藥水  ");	
			return 1;
		case 201:
			printf("綠寶石    ");	
			return 1;
		case 202:
			printf("紅寶石    ");	
			return 1;
		case 203:
			printf("藍寶石    ");	
			return 1;
		case 204:
			printf("鑽石      ");	
			return 1;
		case 205:
			printf("飛龍卵    ");	
			return 1;
		case 206:
			printf("魔法水    ");	
			return 1;
		case 207:
			printf("水晶粒    ");	
			return 1;
		case 208:
			printf("控制中樞  ");	
			return 1;
		case 209:
			printf("黃金徽章  ");	
			return 1;
		case 210:
			printf("星之眼    ");	
			return 1;
		case 211:
			printf("光之眼    ");	
			return 1;
		case 212:
			printf("暗之眼    ");	
			return 1;
		case 213:
			printf("冰之眼    ");	
			return 1;
		case 214:
			printf("火之眼    ");	
			return 1;
		default:
			return 0;
	}



return 0;
}
//印出可改數值
void print_change(){
	printf("1.HP\n");
	printf("2.MP\n");
	printf("3.MT\n");
	printf("4.DF\n");
	printf("5.MV\n");
	printf("6.EX\n");
	printf("7.DX\n");
	printf("8.item\n");
return;
}

:::

## 3.5 RGB Line Chart

:::spoiler 41247027S 陳Ｏ羽

#include <stdio.h>
#include<stdlib.h>
#include<stdint.h>
#include<getopt.h>
#include<unistd.h>
#include<string.h>

struct option long_option[] = {
    {"input",1,NULL,'i'},
    {"output",1,NULL,'o'},
    {"width",1,NULL,'w'},
    {"height",1,NULL,'h'},
    {"line",0,NULL,'l'},
    {"help",0,NULL,'H'},
    {0,0,0,0}
};

struct _sBmpHeader
{
    char		bm[2];
    uint32_t	size;
    uint32_t	reserve;
    uint32_t	offset;
    uint32_t	header_size;
    uint32_t	width;
    uint32_t	height;
    uint16_t	planes;
    uint16_t	bpp;
    uint32_t	compression;
    uint32_t	bitmap_size;
    uint32_t	hres;
    uint32_t	vres;
    uint32_t	used;
    uint32_t	important;
}__attribute__ ((__packed__));

typedef struct _sBmpHeader sBmpHeader;

void draw(int32_t position,int32_t radius,int32_t width,uint8_t *bmp_map,uint32_t maxi){
    double color = 255.0/radius;
    for(int32_t i=radius-1;i>=0;i--){
        for(int32_t j=0;j<=i;j++){
            if(position+3*j+width*(radius-1-i)<maxi&&position+3*j+width*(radius-1-i)>=0){
                if(*(bmp_map+position+3*j+width*(radius-1-i))<color*(i+1-j))
                *(bmp_map+position+3*j+width*(radius-1-i)) = color*(i+1-j);
            }
            if(position-3*j+width*(radius-1-i)<maxi&&position-3*j+width*(radius-1-i)>=0){
                if(*(bmp_map+position-3*j+width*(radius-1-i))<color*(i+1-j))
                *(bmp_map+position-3*j+width*(radius-1-i)) = color*(i+1-j);
            }
            if(position+3*j-width*(radius-1-i)<maxi&&position+3*j-width*(radius-1-i)>=0){
                if(*(bmp_map+position+3*j-width*(radius-1-i))<color*(i+1-j))
                *(bmp_map+position+3*j-width*(radius-1-i)) = color*(i+1-j);
            }
            if(position-3*j-width*(radius-1-i)<maxi&&position-3*j-width*(radius-1-i)>=0){
                if(*(bmp_map+position-3*j-width*(radius-1-i))<color*(i+1-j))
                *(bmp_map+position-3*j-width*(radius-1-i)) = color*(i+1-j);
            }
        }
    }
}


int main(int argc, char *argv[]){
    int32_t width,height,radius,option=0,opt_h=0,check=0;
    char input[100],output[100];

    while((option = getopt_long(argc,argv,"i:o:w:h:l:H",long_option,NULL))!=-1){
        if(option == 'i'){
            check++;
            strcpy(input,optarg);
        }
        else if(option == 'o'){
            check++;
            strcpy(output,optarg);
        }
        else if(option == 'w'){
            check++;
            width = atoi(optarg);
        }
        else if(option == 'h'){
            check++;
            height = atoi(optarg);
        }
        else if(option == 'l'){
            check++;
            radius = atoi(optarg);
        }
        else if(option == 'H'){
            opt_h = 1;
        }
    }
    if(opt_h){
        printf("Usage: hw0302 [options]\n  -i, --input, mandatory: input file path\n  -o, --output, mandatory: output file path\n  -w, --width, mandatory: output bmp file width\n  -h, --height, mandatory: output bmp file height\n  -l, --line, mandatory: the radius of line\n  -H, --help, option: show help message\n");
        return 0;
    }
    if(check!=5){
        printf("Wrong input!\n");
        return 0;
    }
    FILE *IFile,*OFile;
    if((IFile = fopen(input,"rb"))==NULL){
        printf("Can't Not Open\n");
        return 0;
    }
    if((OFile = fopen(output,"wb"))==NULL){
        printf("Can't Not Open\n");
        return 0;
    }
    sBmpHeader input_header,output_header;
    fread(&input_header,sizeof(input_header),1,IFile);
    uint64_t Blue[256]={0},Red[256]={0},Green[256]={0},maxi=0;
    int32_t bytes_per_pixel = input_header.bpp / 8; // 每个像素占用的字节数
    int32_t alignment_bytes = (4 - ((input_header.width * bytes_per_pixel) % 4)) % 4; // 行字节数对齐所需的填充字节数
    fseek(IFile,input_header.offset,SEEK_SET);
    for (int32_t i = 0; i < input_header.height; i++) {
        for (int32_t j = 0; j < input_header.width; j++) {
            for (int32_t k = 0; k < 3; k++) {
                uint8_t num;
                fread(&num, sizeof(uint8_t), 1, IFile);

                // 根据颜色分量的顺序来选择对应的数组递增
                if (k == 0) {
                    Blue[num]++;
                    if (Blue[num] > maxi)
                        maxi = Blue[num];
                } else if (k == 1) {
                    Green[num]++;
                    if (Green[num] > maxi)
                        maxi = Green[num];
                } else if (k == 2) {
                    Red[num]++;
                    if (Red[num] > maxi)
                        maxi = Red[num];
                }
            }
        }
        fseek(IFile, alignment_bytes, SEEK_CUR);
    }
    int tmp2 = (width*3)%4;
    if(tmp2>0)
        tmp2 = 4 - tmp2;
    strcpy(output_header.bm,"BM");
    output_header.offset = 54;
    output_header.header_size = 40;
    output_header.reserve = 0;
    output_header.bpp = 24;
    output_header.width= width;
    output_header.height = height;
    output_header.planes=1;
    output_header.important = 0;
    output_header.bitmap_size = width * height * 3 + height * tmp2;
    output_header.size = output_header.bitmap_size + output_header.offset;
    output_header.compression = 0;
    output_header.hres =0;
    output_header.vres =0;
    output_header.important=0;
    output_header.used = 0;
    fwrite(&output_header,sizeof(output_header),1,OFile);
    uint8_t *bmp_map;
    bmp_map =calloc(output_header.bitmap_size,sizeof(uint8_t));
    memset(bmp_map,0,output_header.bitmap_size);
    double vertical = (double)height/(double)maxi,horizontal = (double)width/255.0;
    //Blue
    for(int32_t i=1;i<256;i++){
            if(Blue[i-1]>=Blue[i]){
                double slope = (double)(vertical*(Blue[i-1]-Blue[i]))/(double)(horizontal);//((int32_t)((i)*horizontal)-(int32_t)((i-1)*horizontal)); (int32_t)(vertical*Blue[i-1])-(int32_t)(vertical*Blue[i])
                int32_t cnt_height=0;
                for(int32_t j=0;j<=(horizontal);j++){
                    if((int32_t)j*slope-cnt_height==0){
                        draw((int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Blue[i-1]-cnt_height))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                    }
                    else{
                        for(int32_t k =0;k<=(int32_t)j*slope-cnt_height;k++){
                            draw((int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Blue[i-1]-(cnt_height+k)))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                        }
                    }
                    cnt_height=j*slope;
                }
            }
            else if(Blue[i-1]<Blue[i]){
                double slope = (double)(vertical*(Blue[i]-Blue[i-1]))/(horizontal);
                int32_t cnt_height=0;
                for(int32_t j=0;j<=(horizontal);j++){
                    if((int32_t)j*slope-cnt_height==0){
                        draw((int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Blue[i-1]+cnt_height))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                    }
                    else{
                        for(int32_t k =0;k<=(int32_t)j*slope-cnt_height;k++){
                            draw((int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Blue[i-1]+cnt_height+k))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                        }
                    }
                    cnt_height=j*slope;
                }
            }
        
    }
    //Green
    for(int32_t i=1;i<256;i++){
            if(Green[i-1]>=Green[i]){
                double slope = (double)(vertical*(Green[i-1]-Green[i]))/(double)(horizontal);
                int32_t cnt_height=0;
                for(int32_t j=0;j<=(horizontal);j++){
                    if((int32_t)j*slope-cnt_height==0){
                        draw(1+(int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Green[i-1]-cnt_height))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                    }
                    else{
                        for(int32_t k =0;k<=(int32_t)j*slope-cnt_height;k++){
                            draw(1+(int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Green[i-1]-(cnt_height+k)))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                        }
                    }
                    cnt_height=j*slope;
                }
            }
            else if(Green[i-1]<Green[i]){
                double slope = (double)(vertical*(Green[i]-Green[i-1]))/(horizontal);
                int32_t cnt_height=0;
                for(int32_t j=0;j<=(horizontal);j++){
                    if((int32_t)j*slope-cnt_height==0){
                        draw(1+(int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Green[i-1]+cnt_height))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                    }
                    else{
                        for(int32_t k =0;k<=(int32_t)j*slope-cnt_height;k++){
                            draw(1+(int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Green[i-1]+cnt_height+k))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                        }
                    }
                    cnt_height=j*slope;
                }
            }
    }
    //Red
    for(int32_t i=1;i<256;i++){
            if(Red[i-1]>=Red[i]){
                double slope = (double)(vertical*(Red[i-1]-Red[i]))/(double)(horizontal);//((int32_t)((i)*horizontal)-(int32_t)((i-1)*horizontal)); (int32_t)(vertical*Blue[i-1])-(int32_t)(vertical*Blue[i])
                int32_t cnt_height=0;
                for(int32_t j=0;j<=(horizontal);j++){
                    if((int32_t)j*slope-cnt_height==0){
                        draw(2+(int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Red[i-1]-cnt_height))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                    }
                    else{
                        for(int32_t k =0;k<=(int32_t)j*slope-cnt_height;k++){
                            draw(2+(int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Red[i-1]-(cnt_height+k)))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                        }
                    }
                    cnt_height=j*slope;
                }
            }
            else if(Red[i-1]<Red[i]){
                double slope = (double)(vertical*(Red[i]-Red[i-1]))/(horizontal);
                int32_t cnt_height=0;
                for(int32_t j=0;j<=(horizontal);j++){
                    if((int32_t)j*slope-cnt_height==0){
                        draw(2+(int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Red[i-1]+cnt_height))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                    }
                    else{
                        for(int32_t k =0;k<=(int32_t)j*slope-cnt_height;k++){
                            draw(2+(int32_t)(horizontal*(i-1)+j)*3+((tmp2+width*3)*((int32_t)(vertical*Red[i-1]+cnt_height+k))),radius,tmp2+width*3,bmp_map,output_header.bitmap_size);
                        }
                    }
                    cnt_height=j*slope;
                }
            }
        
    }
    fwrite(bmp_map,sizeof(uint8_t),output_header.bitmap_size,OFile);
    fclose(IFile);
    fclose(OFile);

    return 0;
}

:::

## 3.6 Bonus: ncurses

不提供範例解答，但可以看看其他人是如何把相關內容寫成部落格的：
https://shengyu7697.github.io/cpp-ncurses/