怎么利用easyx实现接雨水图示
时间: 2023-12-13 07:04:42 浏览: 76
接雨水问题可以通过EasyX实现,具体实现步骤如下:
1. 定义一个二维数组来存储地形高度
2. 使用EasyX绘制出地形高度图
3. 使用EasyX绘制出接雨水的区域,可以使用不同颜色表示
4. 使用EasyX实现鼠标交互,可以让用户点击选择一个点,然后计算出该点能够接多少雨水,并在界面上显示出来
下面是一个简单的示例代码:
```c++
#include <graphics.h>
#include <conio.h>
#include <stdio.h>
#define WIDTH 800
#define HEIGHT 600
int terrain[WIDTH][HEIGHT];
void drawTerrain() {
for (int x = 0; x < WIDTH; x++) {
for (int y = 0; y < HEIGHT; y++) {
setfillcolor(RGB(terrain[x][y], terrain[x][y], terrain[x][y]));
solidrectangle(x, y, x+1, y+1);
}
}
}
void drawWater(int x, int y, int amount) {
setfillcolor(RGB(0, 0, 255));
solidrectangle(x, y, x+1, y+1);
setbkmode(TRANSPARENT);
settextcolor(RGB(255, 255, 255));
char text[16];
sprintf(text, "%d", amount);
outtextxy(x, y-20, text);
}
int main() {
initgraph(WIDTH, HEIGHT);
// 生成地形高度图
for (int x = 0; x < WIDTH; x++) {
for (int y = 0; y < HEIGHT; y++) {
terrain[x][y] = rand() % 256;
}
}
drawTerrain();
// 鼠标交互
MOUSEMSG mouse;
while (true) {
mouse = GetMouseMsg();
if (mouse.uMsg == WM_LBUTTONDOWN) {
int x = mouse.x, y = mouse.y;
int amount = 0;
// 计算该点能接多少雨水
// 这里应该实现接雨水算法
drawWater(x, y, amount);
}
}
closegraph();
return 0;
}
```
这段代码只是一个简单的示例,其中的接雨水算法并没有实现,需要根据具体问题进行实现。
阅读全文
相关推荐
















