Mine

float scale = 200 / (readfloat(TELEPOINT) * 2 );

//radar box
drawshaderect(read4bytes(0x638108) - (120 << 24),read4bytes(0x63810C) - (120 << 24),400,200,600,400,m_pD3Ddev);

for ( int player = 1; player < 32; player++ ) {
float rpx;
float rpy;

rpx = (read4bytes(SCREENSIZE) - playercoords(player)->x) * scale - 600;
rpy = (read4bytes(SCREENSIZE + 0x4) - playercoords(player)->y) * scale - 400;

drawrect(0xCFFF0000, rpx - 5, rpy - 5, rpx + 5 , rpy - 5, m_pD3Ddev);
}