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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef GLEXTRA_H
#define GLEXTRA_H
#include "myGL.h"
/*
* Draw a circle / rectangle on top of the top surface (ground/water).
* Note: Uses the current color.
*/
class CWeapon;
typedef void (*SurfaceCircleFunc)(const float3& center, float radius, unsigned int res);
typedef void (*SurfaceSquareFunc)(const float3& center, float xsize, float zsize);
extern SurfaceCircleFunc glSurfaceCircle;
extern SurfaceSquareFunc glSurfaceSquare;
extern void glBallisticCircle(const float3& center, float radius,
const CWeapon* weapon, unsigned int resolution, float slope = 0.0f);
extern void setSurfaceCircleFunc(SurfaceCircleFunc func);
extern void setSurfaceSquareFunc(SurfaceSquareFunc func);
typedef void (*DrawVolumeFunc)(const void* data);
extern void glDrawVolume(DrawVolumeFunc drawFunc, const void* data);
extern void glWireCube(unsigned int* listID);
extern void glWireCylinder(unsigned int* listID, unsigned int numDivs, float zSize);
extern void glWireSphere(unsigned int* listID, unsigned int numRows, unsigned int numCols);
#endif
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