Function ViewportDrawBoundingBoxes

src/viewport.cpp:1738–1751

* Draws the bounding boxes of all ParentSprites * @param psd Array of ParentSprites */

 * @param psd Array of ParentSprites
 */
static void ViewportDrawBoundingBoxes(const ParentSpriteToSortVector *psd)
{
	for (const ParentSpriteToDraw *ps : *psd) {
		Point pt1 = RemapCoords(ps->xmax + 1, ps->ymax + 1, ps->zmax + 1); // top front corner
		Point pt2 = RemapCoords(ps->xmin    , ps->ymax + 1, ps->zmax + 1); // top left corner
		Point pt3 = RemapCoords(ps->xmax + 1, ps->ymin    , ps->zmax + 1); // top right corner
		Point pt4 = RemapCoords(ps->xmax + 1, ps->ymax + 1, ps->zmin    ); // bottom front corner

		DrawBox(        pt1.x,         pt1.y,
		        pt2.x - pt1.x, pt2.y - pt1.y,
		        pt3.x - pt1.x, pt3.y - pt1.y,
		        pt4.x - pt1.x, pt4.y - pt1.y);
	}
}

/**
 * Draw/colour the blocks that have been redrawn.