精细绘图及动画

阳光穿透心脏的1/2处 2021-12-14 15:09 206阅读 0赞

[精细绘图及动画][Link 1]

制个程序是本人自己编写，所以这里能后做出详细解释。程序运行后会在屏幕上用triplex\_font显示“press any key for set off”，下方是用基本的线条画出的发射架（有点粗糙），即程序中的DrawGun()函数，当按下任意键后，将在发射架上方出现一个用横线填充的飞机，同时背景被繁星填充，此时必须按住任意键不放，否则飞机将不会发射。发射完成后，即飞机坐标小于0，将出现一句话："successfully!!!,press ESC to quit",若中途按ESC退出，则飞机Y坐标不小于0，将出现"failue,..."这句话。

\#include<graphics.h>  
\#include<conio.h>  
\#include<stdio.h>  
\#include<stdlib.h>  
\#include<alloc.h>  
  
\#define ESC 0x1b/\*ESC的ASCII码，十六进制\*/  
  
void InstallGraph(void);/\*图形程序加载函数的说名语句\*/  
void DrawGun(void); /\*画发射架函数的说明语句\*/  
void DrawPlan(void); /\*画飞机函数的说明语句\*/  
void DrawStar(void); /\*画星函数的说明语句\*/  
  
void \*buf; /\*全局变量，用于存储飞机的图像\*/  
int x0=300; /\*以下是飞机的位置初始化参数\*/  
int y0=340;  
int width1=5;  
int width2=20;  
int height=25;  
int y1=8;  
int y2=15;  
int y3=23;  
int y4=38;  
  
/\*主函数开始\*/  
main()  
\{  
int size;  
int i=0;  
int key;  
int station;  
  
  
InstallGraph();  
setbkcolor(BLACK);  
cleardevice();/\*图形驱动程序和屏幕初始化工作完成\*/  
  
setcolor(BLUE);/\*设置字的颜色\*/  
settextstyle(TRIPLEX\_FONT,0,4);/\*设置字体\*/  
outtextxy(80,100,"Ready!...Any key to SET OFF !!!");  
DrawGun(); /\*画出发射架\*/  
getch(); /\*if press key,clear the words and start\*/  
  
cleardevice();  
DrawGun();  
DrawPlan();  
DrawStar();  
setcolor(LIGHTRED);/\*define result words color\*/  
  
do\{ /\*程序主循环开始，用于运动飞机，方法是用异或的方式在屏幕上连续画出飞机 的图像，每画一次，新图像和来的位置相差两个像素点。这个值是可调的，值越大，飞机飞行的速度越快\*/  
  
putimage(x0-width2,y0-height-3\*width1-i,buf,XOR\_PUT);  
i+=2;  
putimage(x0-width2,y0-height-3\*width1-i,buf,XOR\_PUT);  
  
key=getch();  
if(y0-height-3\*width1-i==0)  
outtextxy(60,100,"Successfully!!! Press ESC to quit");  
if(key==ESC)\{  
if(y0-height-3\*width1-i>0)\{  
cleardevice();  
outtextxy(100,100,"Failue. What did you do?");  
outtextxy(130,300,"Press any key to quit.");  
getch();  
\}  
\}  
  
\}while(key!=ESC);  
  
free(buf);  
closegraph();  
return 0;  
  
\}  
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*Install the graphics library\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/  
  
void InstallGraph(void)  
\{  
int grdriver=DETECT;  
int grmode;  
int errorcode;  
char \*errormsg;  
  
registerbgidriver(EGAVGA\_driver);  
registerbgifont(triplex\_font);  
initgraph(&grdriver,&grmode,"");  
  
errorcode=graphresult();  
errormsg=grapherrormsg(errorcode);  
if(errorcode!=grOk)\{  
printf("Graphics error: %s\\n",errormsg);  
printf("Press any key to exit.\\n");  
getch();  
exit(1);  
\}  
\}  
  
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*Draw the star \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/  
  
void DrawStar(void)  
\{  
int seed=2000;  
int i,dotx,doty,height,width,color,maxcolor;  
  
maxcolor=getmaxcolor();  
width=getmaxx();  
height=getmaxy();  
  
srand(seed);  
for(i=0;i<250;i++)\{  
dotx=i+random(width-1);  
doty=i+random(height-1);  
color=random(maxcolor);  
  
setcolor(color);  
putpixel(dotx,doty,color);  
circle(dotx+1,doty+1,1);  
  
\}  
srand(seed);  
\}  
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*Draw the bottom gun\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/  
void DrawGun(void)  
\{  
int x0=300;  
int y0=430;  
int height=45;  
int rx=20;  
int ry=5;  
int rightx,righty,leftx,lefty;  
int centery1=30;  
rightx=righty=leftx=lefty=12;  
  
  
setcolor(LIGHTGREEN);  
ellipse(x0,y0,180,360,rx,ry);  
ellipse(x0,y0-height,0,360,rx,ry);  
line(x0+rx,y0,x0+rx,y0-height);  
line(x0-rx,y0,x0-rx,y0-height);  
  
moveto(x0+rx,y0);  
lineto(x0+rx+rightx,y0+righty);  
moveto(x0+rx+rightx,y0+righty);  
lineto(x0+rx+rightx+10,y0+righty+10);  
circle(x0+rx+rightx+10,y0+righty+10,4);  
  
  
moveto(x0,y0+ry);  
lineto(x0,y0+centery1);  
moveto(x0,y0+centery1);  
lineto(x0,y0+centery1+10);  
circle(x0,y0+centery1+10,4);  
  
  
moveto(x0-rx,y0);  
lineto(x0-rx-leftx,y0+lefty);  
moveto(x0-rx-leftx,y0+lefty);  
lineto(x0-rx-leftx-10,y0+lefty+10);  
circle(x0-rx-leftx-10,y0+lefty+10,4);  
  
line(x0-rx-leftx,y0+lefty,x0,y0+centery1);  
line(x0,y0+centery1,x0+rx+rightx,y0+righty);  
\}  
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*Draw the plan fly to the sky\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/  
void DrawPlan(void)  
\{  
  
  
int size;  
  
setcolor(LIGHTRED);  
setfillstyle(1,BLUE);  
ellipse(x0,y0-height,0,180,width1,3\*width1);  
  
moveto(x0+width1,y0); /\*moveto center right side\*/  
lineto(x0+width1,y0-height);  
moveto(x0+width1,y0);  
lineto(x0+width2,y0+y2);  
  
moveto(x0-width1,y0); /\*moveto center left side\*/  
lineto(x0-width1,y0-height);  
moveto(x0-width1,y0);  
lineto(x0-width2,y0+y2);  
  
moveto(x0+width2,y0+y3);/\*moveto right bottom side\*/  
lineto(x0+width2,y0+y1);  
moveto(x0+width2,y0+y3);  
lineto(x0+width1,y0+y2);  
  
moveto(x0-width2,y0+y3);/\*moveto left bottom side\*/  
lineto(x0-width2,y0+y1);  
moveto(x0-width2,y0+y3);  
lineto(x0-width1,y0+y2);  
  
moveto(x0,y0+y4); /\*moveto the bottomest\*/  
lineto(x0+width1,y0+y2);  
moveto(x0,y0+y4);  
lineto(x0-width1,y0+y2);  
  
setfillstyle(2,LIGHTRED); /\*fill the plan with a style \*/  
floodfill(x0,y0,LIGHTRED);  
  
size=imagesize(x0-width2-1,y0-height-3\*width1,  
x0+width2+1,y0+y4);  
buf=malloc(size);  
if(!buf)\{  
printf("No enough memory!");  
exit(0);  
\}  
getimage(x0-width2,y0-height-3\*width1,x0+width2,y0+y4,buf);  
  
\}

posted on 2006-03-02 21:46 [Aween's Blog][Aween_s Blog] 阅读( ...) 评论( ...) [编辑][Link 2] 收藏

转载于:https://www.cnblogs.com/aween/archive/2006/03/02/341522.html

[Link 1]: https://www.cnblogs.com/aween/archive/2006/03/02/341522.html
[Aween_s Blog]: https://www.cnblogs.com/aween/
[Link 2]: https://i.cnblogs.com/EditPosts.aspx?postid=341522