openrw/rwengine/include/render/DebugDraw.hpp

#pragma once

#include <LinearMath/btIDebugDraw.h>

#define GLEW_STATIC
#include <GL/glew.h>
#include <vector>
#include <glm/glm.hpp>

class DebugDraw : public btIDebugDraw
{
public:
	DebugDraw();
	~DebugDraw();

	void drawLine(const btVector3 &from, const btVector3 &to, const btVector3 &color);
	void drawTriangle(const btVector3 &a, const btVector3 &b, const btVector3 &c, const btVector3 &color, btScalar alpha);
	void drawContactPoint(const btVector3 &pointOnB, const btVector3 &normalOnB, btScalar distance, int lifeTime, const btVector3 &color);
	void reportErrorWarning(const char *warningString);
	void draw3dText(const btVector3 &location, const char *textString);
	void setDebugMode(int debugMode);
	int getDebugMode() const;

    void drawAllLines();

	void setShaderProgram(GLuint shaderProgram) {
		this->shaderProgram = shaderProgram;
	}

protected:
	int debugMode;

    std::vector<glm::vec3> lines;
    size_t maxlines;

    btVector3 color;

	GLuint shaderProgram;

	GLuint vbo, vao, texture;
};