uses crt,graph;
const
xn=320;
yn=200;
h=150;d=0;
var
xc,yc,gd,gm,i,j:integer;
xa,ya:word;
t:real;
x,y:array[1..5] of integer;
p:array[1..5] of pointtype;
begin
clrscr;
gd:=detect;
initgraph (gd,gm,'D:\TP\BGI');
rectangle(xn,yn,xn+d,yn+h);
delay(2000);
cleardevice;
x[1]:=xn; y[1]:=yn;
x[2]:=xn+d; y[2]:=yn;
x[3]:=xn+d; y[3]:=yn+h;
x[4]:=xn; y[4]:=yn+h;
x[5]:=x[1]; y[5]:=y[1];
xc:=xn;
yc:=yn+75;
getaspectratio (xa,ya);
for j:=1 to 180 do
begin
t:=10*j*pi/180;
for i:=1 to 5 do
begin
P[i].x:=xc+round((x[i]-xc)*cos(t)+(y[i]-yc)*sin(t)*ya/xa);
P[i].y:=yc+round((y[i]-yc)*cos(t)+(x[i]-xc)*sin(t)*xa/ya);
end;
drawpoly (5,p);
delay(10000);
cleardevice;
end;
readln;
closegraph;
end.
Графика, Движущаяся стрела |