# Tetris D1061139
### 修改
* 主頁面
* 重新開始
### 程式碼
#### 主頁面
```javascript=
/*開始介面*/
void PrintStartScreen() {
printf("**********************************************\n");
printf("* *\n");
printf("* Welcome to My Game! *\n");
printf("* *\n");
printf("**********************************************\n");
printf("\n");
}
/*按下x關閉遊戲其餘開始遊戲*/
int main() {
PrintStartScreen();
char leave;
printf("Press 'x' to exit or any other key to start the game:");
leave = getch();
if (leave == 'X' || leave == 'x') {
printf("\nExiting the game...\n");
return 0;
}
```
使用函示，函式放在main最開始的時候。
#### 重新開始
```javascript=
/*重製遊戲*/
void resetGame(Block canvas[CANVAS_HEIGHT][CANVAS_WIDTH], State* state) {
state->x = CANVAS_WIDTH / 2;
state->y = 0;
state->score = 0;
state->rotate = 0;
state->fallTime = 0;
for (int i = 0; i < 4; i++) {
state->queue[i] = rand() % 7;
}
for (int i = 0; i < CANVAS_HEIGHT; i++) {
for (int j = 0; j < CANVAS_WIDTH; j++) {
resetBlock(&canvas[i][j]);
}
}
}
/*main*/
else {
srand(time(NULL));
Block canvas[CANVAS_HEIGHT][CANVAS_WIDTH];
State state;
bool playAgain = true;
while (playAgain) {
resetGame(canvas, &state);
while (1) {
system("cls");
move(canvas, state.x, state.y, state.rotate, state.x, state.y, state.rotate, state.queue[0]);
logic(canvas, &state);
printCanvas(canvas, &state);
Sleep(100);
if (!move(canvas, state.x, state.y, state.rotate, state.x, state.y, state.rotate, state.queue[0])) {
break;
}
}
system("cls");
printf("Still wanna play?\n");
printf("Yes/No : ");
char ch,ch2;
ch = getch();
ch2 = getch();
getch();
if (ch2 == 'N' || ch2 == 'n') {
system("cls");
playAgain = false;
}
else {
system("cls");
}
}
printf("Exiting the game...\n");
return 0;
}
}
```
將遊戲初始化包裝成一個函式，並且遊戲結束時(logic中的while迴圈裡的exit要刪掉)詢問是否重新開始遊戲。
### 完整程式碼
```javascript=
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <time.h>
#include <windows.h>
#define LEFT_KEY 0x25 // The key to move left, default = 0x25 (left arrow)
#define RIGHT_KEY 0x27 // The key to move right, default = 0x27 (right arrow)
#define ROTATE_KEY 0x26 // The key to rotate, default = 0x26 (up arrow)
#define DOWN_KEY 0x28 // The key to move down, default = 0x28 (down arrow)
#define FALL_KEY 0x20 // The key to fall, default = 0x20 (spacebar)
#define FALL_DELAY 500 // The delay between each fall, default = 500
#define RENDER_DELAY 100 // The delay between each frame, default = 100
#define LEFT_FUNC() GetAsyncKeyState(LEFT_KEY) & 0x8000
#define RIGHT_FUNC() GetAsyncKeyState(RIGHT_KEY) & 0x8000
#define ROTATE_FUNC() GetAsyncKeyState(ROTATE_KEY) & 0x8000
#define DOWN_FUNC() GetAsyncKeyState(DOWN_KEY) & 0x8000
#define FALL_FUNC() GetAsyncKeyState(FALL_KEY) & 0x8000
#define CANVAS_WIDTH 10
#define CANVAS_HEIGHT 20
typedef enum {
RED = 41,
GREEN,
YELLOW,
BLUE,
PURPLE,
CYAN,
WHITE,
BLACK = 0,
}Color;
typedef enum {
EMPTY = -1,
I,
J,
L,
O,
S,
T,
Z
}ShapeId;
typedef struct {
ShapeId shape;
Color color;
int size;
char rotates[4][4][4];
}Shape;
typedef struct
{
int x;
int y;
int score;
int rotate;
int fallTime;
ShapeId queue[4];
}State;
typedef struct {
Color color;
ShapeId shape;
bool current;
}Block;
Shape shapes[7] = {
{
.shape = I,
.color = CYAN,
.size = 4,
.rotates =
{
{
{0, 0, 0, 0},
{1, 1, 1, 1},
{0, 0, 0, 0},
{0, 0, 0, 0}
},
{
{0, 0, 1, 0},
{0, 0, 1, 0},
{0, 0, 1, 0},
{0, 0, 1, 0}
},
{
{0, 0, 0, 0},
{0, 0, 0, 0},
{1, 1, 1, 1},
{0, 0, 0, 0}
},
{
{0, 1, 0, 0},
{0, 1, 0, 0},
{0, 1, 0, 0},
{0, 1, 0, 0}
}
}
},
{
.shape = J,
.color = BLUE,
.size = 3,
.rotates =
{
{
{1, 0, 0},
{1, 1, 1},
{0, 0, 0}
},
{
{0, 1, 1},
{0, 1, 0},
{0, 1, 0}
},
{
{0, 0, 0},
{1, 1, 1},
{0, 0, 1}
},
{
{0, 1, 0},
{0, 1, 0},
{1, 1, 0}
}
}
},
{
.shape = L,
.color = YELLOW,
.size = 3,
.rotates =
{
{
{0, 0, 1},
{1, 1, 1},
{0, 0, 0}
},
{
{0, 1, 0},
{0, 1, 0},
{0, 1, 1}
},
{
{0, 0, 0},
{1, 1, 1},
{1, 0, 0}
},
{
{1, 1, 0},
{0, 1, 0},
{0, 1, 0}
}
}
},
{
.shape = O,
.color = WHITE,
.size = 2,
.rotates =
{
{
{1, 1},
{1, 1}
},
{
{1, 1},
{1, 1}
},
{
{1, 1},
{1, 1}
},
{
{1, 1},
{1, 1}
}
}
},
{
.shape = S,
.color = GREEN,
.size = 3,
.rotates =
{
{
{0, 1, 1},
{1, 1, 0},
{0, 0, 0}
},
{
{0, 1, 0},
{0, 1, 1},
{0, 0, 1}
},
{
{0, 0, 0},
{0, 1, 1},
{1, 1, 0}
},
{
{1, 0, 0},
{1, 1, 0},
{0, 1, 0}
}
}
},
{
.shape = T,
.color = PURPLE,
.size = 3,
.rotates =
{
{
{0, 1, 0},
{1, 1, 1},
{0, 0, 0}
},
{{0, 1, 0},
{0, 1, 1},
{0, 1, 0}
},
{
{0, 0, 0},
{1, 1, 1},
{0, 1, 0}
},
{
{0, 1, 0},
{1, 1, 0},
{0, 1, 0}
}
}
},
{
.shape = Z,
.color = RED,
.size = 3,
.rotates =
{
{
{1, 1, 0},
{0, 1, 1},
{0, 0, 0}
},
{
{0, 0, 1},
{0, 1, 1},
{0, 1, 0}
},
{
{0, 0, 0},
{1, 1, 0},
{0, 1, 1}
},
{
{0, 1, 0},
{1, 1, 0},
{1, 0, 0}
}
}
},
};
void setBlock(Block* block, Color color, ShapeId shape, bool current)
{
block->color = color;
block->shape = shape;
block->current = current;
}
void resetBlock(Block* block)
{
block->color = BLACK;
block->shape = EMPTY;
block->current = false;
}
bool move(Block canvas[CANVAS_HEIGHT][CANVAS_WIDTH], int originalX, int originalY, int originalRotate, int newX, int newY, int newRotate, ShapeId shapeId) {
Shape shapeData = shapes[shapeId];
int size = shapeData.size;
// check if the new position is valid to place the block
for (int i = 0; i < size; i++) {
for (int j = 0; j < size; j++) {
if (shapeData.rotates[newRotate][i][j]) {
if (newX + j < 0 || newX + j >= CANVAS_WIDTH || newY + i < 0 || newY + i >= CANVAS_HEIGHT) {
return false;
}
if (!canvas[newY + i][newX + j].current && canvas[newY + i][newX + j].shape != EMPTY) {
return false;
}
}
}
}
// remove the old position
for (int i = 0; i < size; i++) {
for (int j = 0; j < size; j++) {
if (shapeData.rotates[originalRotate][i][j]) {
resetBlock(&canvas[originalY + i][originalX + j]);
}
}
}
// move the block
for (int i = 0; i < size; i++) {
for (int j = 0; j < size; j++) {
if (shapeData.rotates[newRotate][i][j]) {
setBlock(&canvas[newY + i][newX + j], shapeData.color, shapeId, true);
}
}
}
return true;
}
void printCanvas(Block canvas[CANVAS_HEIGHT][CANVAS_WIDTH], State* state)
{
printf("\033[0;0H\n");
for (int i = 0; i < CANVAS_HEIGHT; i++) {
printf("|");
for (int j = 0; j < CANVAS_WIDTH; j++) {
printf("\033[%dm\u3000", canvas[i][j].color);
}
printf("\033[0m|\n");
}
Shape shapeData = shapes[state->queue[1]];
printf("\033[%d;%dHNext:", 3, CANVAS_WIDTH * 2 + 5);
for (int i = 1; i <= 3; i++)
{
shapeData = shapes[state->queue[i]];
for (int j = 0; j < 4; j++) {
printf("\033[%d;%dH", i * 4 + j, CANVAS_WIDTH * 2 + 15);
for (int k = 0; k < 4; k++) {
if (j < shapeData.size && k < shapeData.size && shapeData.rotates[0][j][k]) {
printf("\x1b[%dm ", shapeData.color);
}
else {
printf("\x1b[0m ");
}
}
}
}
return;
}
int clearLine(Block canvas[CANVAS_HEIGHT][CANVAS_WIDTH]) {
for (int i = 0; i < CANVAS_HEIGHT; i++) {
for (int j = 0; j < CANVAS_WIDTH; j++) {
if (canvas[i][j].current) {
canvas[i][j].current = false;
}
}
}
int linesCleared = 0;
for (int i = CANVAS_HEIGHT - 1; i >= 0; i--)
{
bool isFull = true;
for (int j = 0; j < CANVAS_WIDTH; j++)
{
if (canvas[i][j].shape == EMPTY) {
isFull = false;
break;
}
}
if (isFull) {
linesCleared += 1;
for (int j = i; j > 0; j--)
{
for (int k = 0; k < CANVAS_WIDTH; k++)
{
setBlock(&canvas[j][k], canvas[j - 1][k].color, canvas[j - 1][k].shape, false);
resetBlock(&canvas[j - 1][k]);
}
}
i++;
}
}
return linesCleared;
}
void logic(Block canvas[CANVAS_HEIGHT][CANVAS_WIDTH], State* state)
{
if (ROTATE_FUNC()) {
int newRotate = (state->rotate + 1) % 4;
if (move(canvas, state->x, state->y, state->rotate, state->x, state->y, newRotate, state->queue[0]))
{
state->rotate = newRotate;
}
}
else if (LEFT_FUNC()) {
if (move(canvas, state->x, state->y, state->rotate, state->x - 1, state->y, state->rotate, state->queue[0]))
{
state->x -= 1;
}
}
else if (RIGHT_FUNC()) {
if (move(canvas, state->x, state->y, state->rotate, state->x + 1, state->y, state->rotate, state->queue[0]))
{
state->x += 1;
}
}
else if (DOWN_FUNC()) {
state->fallTime = FALL_DELAY;
}
else if (FALL_FUNC()) {
state->fallTime += FALL_DELAY * CANVAS_HEIGHT;
}
state->fallTime += RENDER_DELAY;
while (state->fallTime >= FALL_DELAY) {
state->fallTime -= FALL_DELAY;
if (move(canvas, state->x, state->y, state->rotate, state->x, state->y + 1, state->rotate, state->queue[0])) {
state->y++;
}
else {
state->score += clearLine(canvas);
state->x = CANVAS_WIDTH / 2;
state->y = 0;
state->rotate = 0;
state->fallTime = 0;
state->queue[0] = state->queue[1];
state->queue[1] = state->queue[2];
state->queue[2] = state->queue[3];
state->queue[3] = rand() % 7;
if (!move(canvas, state->x, state->y, state->rotate, state->x, state->y, state->rotate, state->queue[0]))
{
printf("\033[%d;%dH\x1b[41m GAME OVER \x1b[0m\033[%d;%dH", CANVAS_HEIGHT - 3, CANVAS_WIDTH * 2 + 5, CANVAS_HEIGHT + 5, 0);
//exit(0);
}
}
}
return;
}
void PrintStartScreen() {
printf("**********************************************\n");
printf("* *\n");
printf("* Welcome to My Game! *\n");
printf("* *\n");
printf("**********************************************\n");
printf("\n");
}
void resetGame(Block canvas[CANVAS_HEIGHT][CANVAS_WIDTH], State* state) {
state->x = CANVAS_WIDTH / 2;
state->y = 0;
state->score = 0;
state->rotate = 0;
state->fallTime = 0;
for (int i = 0; i < 4; i++) {
state->queue[i] = rand() % 7;
}
for (int i = 0; i < CANVAS_HEIGHT; i++) {
for (int j = 0; j < CANVAS_WIDTH; j++) {
resetBlock(&canvas[i][j]);
}
}
}
int main() {
PrintStartScreen();
char leave;
printf("Press 'x' to exit or any other key to start the game:");
leave = getch();
if (leave == 'X' || leave == 'x') {
printf("\nExiting the game...\n");
return 0;
}
else {
srand(time(NULL));
Block canvas[CANVAS_HEIGHT][CANVAS_WIDTH];
State state;
bool playAgain = true;
while (playAgain) {
resetGame(canvas, &state);
while (1) {
system("cls");
move(canvas, state.x, state.y, state.rotate, state.x, state.y, state.rotate, state.queue[0]);
logic(canvas, &state);
printCanvas(canvas, &state);
Sleep(100);
if (!move(canvas, state.x, state.y, state.rotate, state.x, state.y, state.rotate, state.queue[0])) {
break;
}
}
system("cls");
printf("Still wanna play?\n");
printf("Yes/No : ");
char ch,ch2;
ch = getch();
ch2 = getch();
getch();
if (ch2 == 'N' || ch2 == 'n') {
system("cls");
playAgain = false;
}
else {
system("cls");
}
}
printf("Exiting the game...\n");
return 0;
}
}
```
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