10/02/19 00:27:45 u7/N0T5p
俺がいつも使ってる拡張画像表示はこれ
void DrawExRotaGraphF(float ex, float ey, float xScale, float yScale, float Angle, int GrHandle, int TransFlag, int TurnFlag) {
int gx,gy;
float ix,iy,ca=cos(Angle),sa=sin(Angle);
GetGraphSize(GrHandle,&gx,&gy);
gx*=xScale/2; gy*=yScale/2;
VECTOR2D pos[4] = { { -gx, -gy}, { +gx, -gy}, { +gx, +gy}, { -gx, +gy} };
for (int i=0;i<4;i++) {
ix = pos[i].x*ca - pos[i].y*sa;
iy = pos[i].x*sa + pos[i].y*ca;
pos[i].x=ix+ex; pos[i].y=iy+ey;
}
if (!TurnFlag) DrawModiGraph((int)pos[0].x, (int)pos[0].y, (int)pos[1].x, (int)pos[1].y,
(int)pos[2].x, (int)pos[2].y, (int)pos[3].x, (int)pos[3].y, GrHandle, TransFlag);
else DrawModiGraph((int)pos[1].x, (int)pos[1].y, (int)pos[0].x, (int)pos[0].y,
(int)pos[3].x, (int)pos[3].y, (int)pos[2].x, (int)pos[2].y, GrHandle, TransFlag);
}
ていうかこのくらいDXライブラリも用意して欲しいところだが