一个下雪小程序，刚刚学写的
snow.zip
(86.99 KB)
某人让我发的，不过源码要等一会发，感觉有BUG，一会儿吃完饭再改改，御坂御坂说道
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补充：修改了一下，不然没有VC2005的人运行不了
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再补充：
这里是新版本的程序：
snow.zip
(86.98 KB)
以下是源代码：
程序代码：#define _GRAPHICS_LIB_LINK_ 1
#include"yzfy_graphics.h"
#include"yzfy_dos.h"
#define MAXSNOW 500
struct SNOW
{
int n;
int lx, ly;
int color;
double x;
double y;
double cx;
double dcx;
double vx;
double vy;
double k;
};
const int sc_width = 640;
const int sc_height = 480;
void InitSnow(struct SNOW *snow)
{
double vx = 0.5;
double fvx = 0.5;
double vy = (double)random(1000) / 1000;
snow->x = random(sc_width);
snow->y = 0;
snow->cx = snow->x;
snow->dcx = (double)random(1000) / 1000 * 2 * vx - vx;
snow->k = (double)random(1000) / 1000 * -0.001;
snow->vx = (double)random(1000) / 1000 * 2 * fvx - fvx;
snow->vy = vy * 2.0 + 0.5;
snow->color = (int)(192 * vy) + 64;
snow->color = (((snow->color<<8) | snow->color) << 8) | snow->color;
}
void MoveSnow(struct SNOW *snow, double dt)
{
double d = dt * 60 / 1000;
putpixel(snow->lx, snow->ly, 0);
snow->x += snow->dcx * d;
snow->cx += snow->dcx * d;
snow->y += snow->vy * d;
if (snow->y > sc_height)
InitSnow(snow);
snow->lx = (int)snow->x;
snow->ly = (int)snow->y;
putpixel(snow->lx, snow->ly, snow->color);
}
int __stdcall OnUpdate(void* param, float ms)
{
struct SNOW* snow = (struct SNOW *)param;
int i;
for (i = 1; i <= snow->n; i++)
{
snow[i].vx += (snow[i].x - snow[i].cx) * snow[i].k * 0.99;
snow[i].x += snow[i].vx;
}
return 0;
}
int __stdcall OnRender(void* param, float ms)
{
int i;
for (i = 1; i <= ((struct SNOW*)param)->n; i++)
MoveSnow((struct SNOW*)param+i, ms);
return 0;
}
int main()
{
{
int g = TRUECOLORSIZE, m = sc_width | (sc_height << 16);
initgraph(&g, &m, "Snow");
randomize();
}
{
struct SNOW snow[MAXSNOW+1];
int i;
snow[0].n = MAXSNOW;
for (i = 1; i <= MAXSNOW; i++)
{
InitSnow(snow + i);
snow[i].y = random(sc_height);
}
ege_gameloop(OnUpdate, snow, 60, OnRender, snow, 0);
}
closegraph();
return 0;
}
至于代码所用到的库，请自己下载吧，御坂说[ 本帖最后由 御坂美琴 于 2010-8-22 14:09 编辑 ]
不错哦
