贪吃蛇攻击功能C语言代码

以下是一个简单的贪吃蛇攻击功能的 C 语言代码示例，其中使用了图形界面库 `graphics.h` ：

#include <stdio.h>  
#include <graphics.h>  
#include <conio.h>  
#include <stdlib.h>  
#include <time.h>  
  
#define LEFT 75  
#define RIGHT 77  
#define UP 72  
#define DOWN 80  
  
int score = 0;  
int snake[200][2];  
int len = 3;  
int food_x, food_y;  
int direction = RIGHT;  
int attack_range = 50; // 攻击范围半径  
  
void draw_map();  
void generate_food();  
void draw_snake();  
void move();  
void check_collision();  
int distance(int x1, int y1, int x2, int y2); // 计算两点间距离  
void attack();  
  
int main() {  
    int gd=0, gm;  
    initgraph(&gd, &gm, "");  
  
    draw_map();  
    generate_food();  
    draw_snake();  
  
    while (1) {  
        if (kbhit()) {  
            int key = getch();  
            if (key == 27) { // ESC  
                break;  
            }  
            switch (key) {  
                case LEFT:  
                    if (direction != RIGHT)  
                        direction = LEFT;  
                    break;  
                case RIGHT:  
                    if (direction != LEFT)  
                        direction = RIGHT;  
                    break;  
                case UP:  
                    if (direction != DOWN)  
                        direction = UP;  
                    break;  
                case DOWN:  
                    if (direction != UP)  
                        direction = DOWN;  
                    break;  
                case ' ':  
                    attack(); // 空格键触发攻击  
                    break;  
            }  
        }  
  
        move();  
        check_collision();  
    }  
  
    closegraph();  
    return 0;  
}  
  
void draw_map() {  
    setfillstyle(SOLID_FILL, GREEN);  
    bar(0, 0, 640, 480);  
}  
  
void generate_food() {  
    srand((unsigned) time(NULL));  
    food_x = rand() % (640 - 10);  
    food_y = rand() % (480 - 10);  
    setfillstyle(SOLID_FILL, RED);  
    bar(food_x, food_y, food_x + 10, food_y + 10);  
}  
  
void draw_snake() {  
    int i;  
    for (i = 0; i < len; i++) {  
        snake[i][0] = 320 - i*10;  
        snake[i][1] = 240;  
        setfillstyle(SOLID_FILL, WHITE);  
        bar(snake[i][0], snake[i][1], snake[i][0] + 10, snake[i][1] + 10);  
    }  
}  
  
void move() {  
    int i;  
    setfillstyle(SOLID_FILL, GREEN);  
    bar(snake[len-1][0], snake[len-1][1], snake[len-1][0] + 10, snake[len-1][1] + 10);  
    for (i = len-1; i > 0; i--) {  
        snake[i][0] = snake[i-1][0];  
        snake[i][1] = snake[i-1][1];  
    }  
    switch (direction) {  
        case LEFT:  
            snake[0][0] -= 10;  
            break;  
        case RIGHT:  
            snake[0][0] += 10;  
            break;  
        case UP:  
            snake[0][1] -= 10;  
            break;  
        case DOWN:  
            snake[0][1] += 10;  
            break;  
    }  
    setfillstyle(SOLID_FILL, WHITE);  
    bar(snake[0][0], snake[0][1], snake[0][0] + 10, snake[0][1] + 10);  
}  
  
void check_collision() {  
    if (snake[0][0] < 0 || snake[0][0] > 630 || snake[0][1] < 0 || snake[0][1] > 470) {  
        printf("Game over!\n");  
        exit(0);  
    }  
    int i;  
    for (i = 1; i < len; i++) {  
        if (snake[0][0] == snake[i][0] && snake[0][1] == snake[i][1]) {  
            printf("Game over!\n");  
            exit(0);  
        }  
    }  
    if (distance(snake[0][0], snake[0][1], food_x, food_y) < 10) {  
        len++;  
        score++;  
        generate_food();  
    }  
}  
  
int distance(int x1, int y1, int x2, int y2) {  
    return sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2));  
}  
  
void attack() {  
    int i;  
    for (i = 1; i < len; i++) {  
        if (distance(snake[0][0], snake[0][1], snake[i][0], snake[i][1]) < attack_range) {  
            setfillstyle(SOLID_FILL, YELLOW);  
            bar(snake[i][0], snake[i][1], snake[i][0] + 10, snake[i][1] + 10);  
            delay(100);  
            setfillstyle(SOLID_FILL, WHITE);  
            bar(snake[i][0], snake[i][1], snake[i][0] + 10, snake[i][1] + 10);  
        }  
    }  
}  

该代码实现了一个简单的贪吃蛇游戏，按下空格键可以触发攻击。攻击范围的半径为 50，攻击时敌人被标记为黄色方块，持续 100 毫秒，然后恢复为白色方块。该代码仅作为示例，具体实现方式可以根据需要进行调整和改进。