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alpesh

Wed Feb 04, 2004 9:20 pm


Windmill.cpp

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// turbo C++

#include
#include
#include

void wind(float x[7],float y[7]);
void main()
{
	int gd=DETECT,gm;
	float x[7],y[7],maxx,maxy,xw1,yw1,xw2,yw2;
	float theta=30;
	initgraph(&gd,&gm,"c:\\tc\\bgi");
	maxx=getmaxx();
	maxy=getmaxy();
	x[0]=maxx/2;
	y[0]=maxy/2;
	x[1]=y[4]=x[2]=-90;
	y[6]=y[5]=y[1]=60;
	y[2]=35;
	y[3]=-100;
	x[4]=20;
	x[3]=0;
	x[5]=90;
	x[6]=65;
	theta=theta*22/7/180;

	while(kbhit()==0)
	{
	     wind(x,y);
	     xw1=cos(theta)*x[1]+sin(theta)*y[1];
	     yw1=-sin(theta)*x[1]+cos(theta)*y[1];
	     xw2=cos(theta)*x[2]+sin(theta)*y[2];
	     yw2=-sin(theta)*x[2]+cos(theta)*y[2];
	     x[1]=xw1;
	     y[1]=yw1;
	     x[2]=xw2;
	     y[2]=yw2;
	     xw1=cos(theta)*x[3]+sin(theta)*y[3];
	     yw1=-sin(theta)*x[3]+cos(theta)*y[3];
	     xw2=cos(theta)*x[4]+sin(theta)*y[4];
	     yw2=-sin(theta)*x[4]+cos(theta)*y[4];
	     x[3]=xw1;
	     y[3]=yw1;
	     x[4]=xw2;
	     y[4]=yw2;
	     xw1=cos(theta)*x[5]+sin(theta)*y[5];
	     yw1=-sin(theta)*x[5]+cos(theta)*y[5];
	     xw2=cos(theta)*x[6]+sin(theta)*y[6];
	     yw2=-sin(theta)*x[6]+cos(theta)*y[6];
	     x[5]=xw1;
	     y[5]=yw1;
	     x[6]=xw2;
	     y[6]=yw2;
	     delay(50);
	     cleardevice();
       }
       closegraph();
}

void wind(float x[7],float y[7])
{
	cleardevice();
	line(x[0],y[0],x[0]-50,y[0]+200);
	line(x[0],y[0],x[0]+50,y[0]+200);
	line(x[0]-60,y[0]+200,x[0]+60,y[0]+200);
	line(x[0],y[0],x[0]+x[1],y[0]-y[1]);
	line(x[0],y[0],x[0]+x[2],y[0]-y[2]);
	line(x[0]+x[1],y[0]-y[1],x[0]+x[2],y[0]-y[2]);
	line(x[0],y[0],x[0]+x[3],y[0]-y[3]);
	line(x[0],y[0],x[0]+x[4],y[0]-y[4]);
	line(x[0]+x[3],y[0]-y[3],x[0]+x[4],y[0]-y[4]);
	line(x[0],y[0],x[0]+x[5],y[0]-y[5]);
	line(x[0],y[0],x[0]+x[6],y[0]-y[6]);
	line(x[0]+x[5],y[0]-y[5],x[0]+x[6],y[0]-y[6]);
}


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Tony

Wed Feb 04, 2004 10:55 pm



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seems too hardcoded. Not the best practice :? I'd give you some advice but umm... I dont have c++ (and especialy not turbo c++... who uses that?!) on this machine so dont exactly know what the program do... seems like some kind of graphing algorythm