Function duDebugDrawTileCacheContours

3rdparty/recast/DetourDebugDraw.cpp:648–726

};*/

void duDebugDrawTileCacheContours(duDebugDraw* dd, const struct dtTileCacheContourSet& lcset,
								  const float* orig, const float cs, const float ch)
{
	if (!dd) return;
	
	const unsigned char a = 255;// (unsigned char)(alpha*255.0f);
	
	const int offs[2*4] = {-1,0, 0,1, 1,0, 0,-1};
	
	dd->begin(DU_DRAW_LINES, 2.0f);
	
	for (int i = 0; i < lcset.nconts; ++i)
	{
		const dtTileCacheContour& c = lcset.conts[i];
		unsigned int color = 0;
		
		color = duIntToCol(i, a);
		
		for (int j = 0; j < c.nverts; ++j)
		{
			const int k = (j+1) % c.nverts;
			const unsigned char* va = &c.verts[j*4];
			const unsigned char* vb = &c.verts[k*4];
			const float ax = orig[0] + va[0]*cs;
			const float ay = orig[1] + (va[1]+1+(i&1))*ch;
			const float az = orig[2] + va[2]*cs;
			const float bx = orig[0] + vb[0]*cs;
			const float by = orig[1] + (vb[1]+1+(i&1))*ch;
			const float bz = orig[2] + vb[2]*cs;
			unsigned int col = color;
			if ((va[3] & 0xf) != 0xf)
			{
				// Portal segment
				col = duRGBA(255,255,255,128);
				int d = va[3] & 0xf;
				
				const float cx = (ax+bx)*0.5f;
				const float cy = (ay+by)*0.5f;
				const float cz = (az+bz)*0.5f;
				
				const float dx = cx + offs[d*2+0]*2*cs;
				const float dy = cy;
				const float dz = cz + offs[d*2+1]*2*cs;
				
				dd->vertex(cx,cy,cz,duRGBA(255,0,0,255));
				dd->vertex(dx,dy,dz,duRGBA(255,0,0,255));
			}
			
			duAppendArrow(dd, ax,ay,az, bx,by,bz, 0.0f, cs*0.5f, col);
		}
	}
	dd->end();
	
	dd->begin(DU_DRAW_POINTS, 4.0f);	
	
	for (int i = 0; i < lcset.nconts; ++i)
	{
		const dtTileCacheContour& c = lcset.conts[i];