Method DrawMapThing

roomedit/source/mapdc.cpp:724–792

///////////////////////////////////////////////////// TMapDC ------ draw a Thing

// ------
//  draw a Thing
void TMapDC::DrawMapThing (int editmode, SHORT tnum)
{
	assert_tnum (tnum);
	Thing *pThing = &Things[tnum];

	SHORT xpos = pThing->xpos;
	SHORT ypos = pThing->ypos;
	SHORT scrRadius;
	SHORT mapRadius;

	// Select the radius
	if (editmode == OBJ_THINGS)
		mapRadius = GetKodObjectRadius(Things[tnum].type);
	else
		mapRadius = OBJSIZE;

	// Calc. bouding rectangle
	SHORT x0 = xpos - mapRadius;
	SHORT y0 = ypos + mapRadius;
	SHORT x1 = xpos + mapRadius;
	SHORT y1 = ypos - mapRadius;

#ifndef WINDOWS_CLIPPING
	if ( ! IS_VISIBLE_MAP_RECT(x0,y0,x1,y1) )
		return;
#endif

	// Convert map coords. to screen coords.
	scrRadius = (SHORT)(mapRadius * MUL_SCALE);

#ifndef WINDOWS_SCALING
	xpos = SCREENX(xpos);
	ypos = SCREENY(ypos);
	x0   = SCREENX(x0);
	y0   = SCREENY(y0);
	x1   = SCREENX(x1);
	y1   = SCREENY(y1);
#endif

	// Draw bouding circle of the thing
	if (editmode == OBJ_THINGS)
	{
		SetPenColor16 (GetKodObjectColor (Things[tnum].type));
		// If radius is small, draw a rectangle instead of an ellipse
		if ( scrRadius > 4 )
		{
			Ellipse (x0, y0, x1+1, y1+1);
		}
		else if ( scrRadius > 1 )
		{
			TPoint points[5], *pp = points ;
			pp->x = xpos; 		pp->y = y0;		pp++;
			pp->x = x1; 		pp->y = ypos;  	pp++;
			pp->x = xpos;		pp->y = y1;   	pp++;
			pp->x = x0;			pp->y = ypos;  	pp++;
			pp->x = xpos; 		pp->y = y0;
			Polyline (points, 5);
		}