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CryPhysics/grid.h

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+//////////////////////////////////////////////////////////////////////
+//
+//	Grid
+//	
+//	File: grid.h
+//	Description : Grid class declaration and inlined implementation
+//
+//	History:
+//	-:Created by Anton Knyazev
+//
+//////////////////////////////////////////////////////////////////////
+
+#ifndef grid_h
+#define grid_h
+#pragma once
+
+#include "vector3d.h"
+#include "vector2d.h"
+
+struct grid {
+	vector_tpl<int> ax;
+	vectorf org;
+	vector2df step,stepr;
+	vector2d_tpl<unsigned int> sz;
+	float parity;
+	float scale;
+	unsigned short *pflags;
+	unsigned short holeflag;
+	int holepower;
+
+	int inrange(unsigned int ix, unsigned int iy) {
+		return ix<sz.x && iy<sz.y;
+	}
+	int inrange(int ix, int iy) {
+		return (unsigned int)ix<sz.x && (unsigned int)iy<sz.y;
+	}
+	int getcell(unsigned int ix, unsigned int iy) {
+		return ix<sz.x && iy<sz.y ? iy*sz.x+ix : sz.x*sz.y;
+	}
+	int getcell(int ix,int iy) {
+		return (unsigned int)ix<sz.x && (unsigned int)iy<sz.y ? iy*sz.x+ix : sz.x*sz.y;
+	}
+};
+
+#endif