Function duAppendCylinderWire

3rdparty/recast/DebugDraw.cpp:181–217

		 

void duAppendCylinderWire(struct duDebugDraw* dd, float minx, float miny, float minz,
						  float maxx, float maxy, float maxz, unsigned int col)
{
	if (!dd) return;

	static const int NUM_SEG = 16;
	static float dir[NUM_SEG*2];
	static bool init = false;
	if (!init)
	{
		init = true;
		for (int i = 0; i < NUM_SEG; ++i)
		{
			const float a = (float)i/(float)NUM_SEG*DU_PI*2;
			dir[i*2] = dtMathCosf(a);
			dir[i*2+1] = dtMathSinf(a);
		}
	}
	
	const float cx = (maxx + minx)/2;
	const float cz = (maxz + minz)/2;
	const float rx = (maxx - minx)/2;
	const float rz = (maxz - minz)/2;
	
	for (int i = 0, j = NUM_SEG-1; i < NUM_SEG; j = i++)
	{
		dd->vertex(cx+dir[j*2+0]*rx, miny, cz+dir[j*2+1]*rz, col);
		dd->vertex(cx+dir[i*2+0]*rx, miny, cz+dir[i*2+1]*rz, col);
		dd->vertex(cx+dir[j*2+0]*rx, maxy, cz+dir[j*2+1]*rz, col);
		dd->vertex(cx+dir[i*2+0]*rx, maxy, cz+dir[i*2+1]*rz, col);
	}
	for (int i = 0; i < NUM_SEG; i += NUM_SEG/4)
	{
		dd->vertex(cx+dir[i*2+0]*rx, miny, cz+dir[i*2+1]*rz, col);
		dd->vertex(cx+dir[i*2+0]*rx, maxy, cz+dir[i*2+1]*rz, col);
	}
}

void duAppendBoxWire(struct duDebugDraw* dd, float minx, float miny, float minz,
					 float maxx, float maxy, float maxz, unsigned int col)