C語言實現彈跳小球動畫
本文實例為大傢分享瞭C語言實現彈跳小球動畫的具體代碼，供大傢參考，具體內容如下
一、項目描述和最終成果展示
項目描述: 一個球來回的跳動
效果圖如下:
二、實現一個移動的球
代碼如下:
#include<graphics.h>
#include<conio.h>
int main(void)
{
int x;
initgraph(640,480);
for(x=100;x<540;x=x+20)
{
setcolor(YELLOW);//繪制黃線，綠色填充的圓
setfillcolor(GREEN);
fillcircle(x,100,20);
Sleep(320);//延時
/*setcolor(BLACK);//繪制黑線，黑色填充的圓
//目的清除以前的圓，達到小球動態移動的效果
//等價於清屏函數
setfillcolor(BLACK);
fillcircle(x,100,20);*/
cleardevice();
}
closegraph();
return 0;
}
三、彈跳一個小球
代碼如下:
#include<graphics.h>
#include<conio.h>
#define High 480 //遊戲畫佈尺寸
#define Width 640
int main(void)
{
float ball_x,ball_y;//小球的坐標
float ball_vx,ball_vy;//小球的速度
float radius;//小球的半徑
initgraph(Width,High);
ball_x=Width/2;
ball_y=High/2;
ball_vx=1;
ball_vy=1;
radius=20;
while(1)
{
setcolor(BLACK);//繪制黑色，黑色填充的圓
//不用清屏函數的好處：不會閃屏
setfillcolor(BLACK);
fillcircle(ball_x,ball_y,radius);
//更新圓的坐標
ball_x=ball_x+ball_vx;
ball_y=ball_y+ball_vy;
if( (ball_x<=radius) || (ball_x>=Width-radius) )
ball_vx=-ball_vx;
if( (ball_y<=radius) || (ball_y>=High-radius) )
ball_vy=-ball_vy;
//繪制黃線,綠色填充的圓
setcolor(YELLOW);
setfillcolor(GREEN);
fillcircle(ball_x,ball_y,radius);
Sleep(3);
}
closegraph();
return 0;
}
效果圖如下:
四、彈跳一個小球(改進版)
代碼如下:
#include<graphics.h>
#include<conio.h>
#define High 480 //遊戲畫佈尺寸
#define Width 640
int main(void)
{
float ball_x,ball_y;//小球的坐標
float ball_vx,ball_vy;//小球的速度
float radius;//小球的半徑
initgraph(Width,High);
ball_x=Width/2;
ball_y=High/2;
ball_vx=1;
ball_vy=1;
radius=20;
BeginBatchDraw();
while(1)
{
setcolor(BLACK);//繪制黑色，黑色填充的圓
//不用清屏函數的好處：不會閃屏
setfillcolor(BLACK);
fillcircle(ball_x,ball_y,radius);
//更新圓的坐標
ball_x=ball_x+ball_vx;
ball_y=ball_y+ball_vy;
if( (ball_x<=radius) || (ball_x>=Width-radius) )
ball_vx=-ball_vx;
if( (ball_y<=radius) || (ball_y>=High-radius) )
ball_vy=-ball_vy;
//繪制黃線,綠色填充的圓
setcolor(YELLOW);
setfillcolor(GREEN);
fillcircle(ball_x,ball_y,radius);
FlushBatchDraw();
Sleep(3);
}
EndBatchDraw();
closegraph();
return 0;
}
效果圖如下:
五、多個球碰撞
代碼如下:
#include<graphics.h>
#include<conio.h>
#define High 480 //遊戲畫佈尺寸
#define Width 640
#define BallNum 5 //小球的個數
int main(void)
{
float ball_x[BallNum],ball_y[BallNum];//小球的坐標
float ball_vx[BallNum],ball_vy[BallNum];//小球的速度
float radius=20;//小球的半徑
int i;
for(i=0;i<BallNum;i++)
{
ball_x[i]=(i+2)*radius*3;
ball_y[i]=High/2;
ball_vx[i]=1;
ball_vy[i]=1;
}
initgraph(Width,High);
BeginBatchDraw();
while(1)
{
setcolor(BLACK);//繪制黑色，黑色填充的圓
//不用清屏函數的好處：不會閃屏
setfillcolor(BLACK);
for(i=0;i<BallNum;i++)
{
fillcircle(ball_x[i],ball_y[i],radius);
}
//更新圓的坐標
for(i=0;i<BallNum;i++)
{
ball_x[i]=ball_x[i]+ball_vx[i];
ball_y[i]=ball_y[i]+ball_vy[i];
}
//判斷是否和墻壁碰撞
for(i=0;i<BallNum;i++)
{
if( (ball_x[i]<=radius) || (ball_x[i]>=Width-radius) )
ball_vx[i]=-ball_vx[i];
if( (ball_y[i]<=radius) || (ball_y[i]>=High-radius) )
ball_vy[i]=-ball_vy[i];
}
//繪制黃線,綠色填充的圓
setcolor(YELLOW);
setfillcolor(GREEN);
for(i=0;i<BallNum;i++)
{
fillcircle(ball_x[i],ball_y[i],radius);
}
FlushBatchDraw();
Sleep(3);
}
EndBatchDraw();
closegraph();
return 0;
}
效果圖如下:
六、多個球碰撞(升級版)
增加瞭球與球之間的碰撞
代碼如下:
#include<graphics.h>
#include<conio.h>
#include<math.h>
#define High 480 //遊戲畫面大小
#define Width 640
#define BallNum 15//小球的個數
int main(void)
{
float ball_x[BallNum],ball_y[BallNum];//小球的坐標
float ball_vx[BallNum],ball_vy[BallNum];//小球的速度
float radius;//小球的半徑
int i,j;
radius=20;
for(i=0;i<BallNum;i++)//數據的初始化
{
ball_x[i]=rand()%int(Width-4*radius)+2*radius;
ball_y[i]=rand()%int(High-4*radius)+2*radius;
ball_vx[i]=(rand()%2)*2-1;
ball_vy[i]=(rand()%2)*2-1;
}
initgraph(Width,High);
BeginBatchDraw();
while(1)
{
setcolor(BLACK);//繪制黑色，黑色填充的圓
//不用清屏函數的好處：不會閃屏
setfillcolor(BLACK);
for(i=0;i<BallNum;i++)
{
fillcircle(ball_x[i],ball_y[i],radius);
}
//更新小球的坐標
for(i=0;i<BallNum;i++)
{
ball_x[i]=ball_x[i]+ball_vx[i];
ball_y[i]=ball_y[i]+ball_vx[i];
//把超出邊界的小球拉回來
if(ball_x[i]<radius)
ball_x[i]=radius;
if(ball_y[i]<radius)
ball_y[i]=radius;
if(ball_x[i]>Width-radius)
ball_x[i]=Width-radius;
if(ball_y[i]>High-radius)
ball_y[i]=High-radius;
}
//判斷是否和墻壁碰撞
for(i=0;i<BallNum;i++)
{
if( (ball_x[i]<=radius) || (ball_x[i]>=Width-radius) )
ball_vx[i]=-ball_vx[i];
if( (ball_y[i]<=radius) || (ball_y[i]>=High-radius) )
ball_vy[i]=-ball_vy[i];
}
float minDistances2[BallNum][2];
//記錄某個小球和與它最近小球的距離，以及這個小球的坐標
for(i=0;i<BallNum;i++)
{
minDistances2[i][0]=999999;
minDistances2[i][1]=-1;
}
//求所有小球兩兩之間的距離的平方
for(i=0;i<BallNum;i++)
{
for(j=0;j<BallNum;j++)
{
if(i!=j)//和自己不比
{
float dist2;
dist2=(ball_x[i]-ball_x[j])*(ball_x[i]-ball_x[j])
+(ball_y[i]-ball_y[j])*(ball_y[i]-ball_y[j]);
if(dist2<minDistances2[i][0])
{
minDistances2[i][0]=dist2;
minDistances2[i][1]=j;
}
}
}
}
//判斷小球之間是否碰撞
for(i=0;i<BallNum;i++)
{
if(minDistances2[i][0]<=4*radius*radius)
//若最小距離小於閾值，發生碰撞
{
j=minDistances2[i][1];
//交換速度
int temp;
temp=ball_vx[i];ball_vx[i]=ball_vx[j];ball_vx[j]=temp;
temp=ball_vy[i];ball_vy[i]=ball_vy[j];ball_vy[j]=temp;
minDistances2[j][0]=9999999;//避免交換兩次速度，又回去瞭
minDistances2[j][1]=-1;
}
}
//繪制黃線,綠色填充的圓
setcolor(YELLOW);
setfillcolor(GREEN);
for(i=0;i<BallNum;i++)
{
fillcircle(ball_x[i],ball_y[i],radius);
}
FlushBatchDraw();
Sleep(3);
}
EndBatchDraw();
closegraph();
return 0;
}
效果圖如下:
以上就是本文的全部內容，希望對大傢的學習有所幫助，也希望大傢多多支持LevelAH。