Explosion.h

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#ifndef _EXPLOSION_H_
#define _EXPLOSION_H_

#include "Log.h"
#include "../Common/OS/Windows.h"
#include "../Graphics/OpenGL/OpenGLRenderer.h"
#include "../Math/Math.h"
#include "../Math/Vector.h"

#define NUM_EXPLOSION_PARTICLES 50
#define NUM_EXPLOSION_DEBRIS    30

#define EXPLOSION_RAND (2.0f * ((float)rand() / (float)RAND_MAX)) - 1.0f

struct explosionParticle {
        Vec3 position;
        Vec3 velocity;
        Vec4 color;
};

struct explosionDebris {
        Vec3 position;
        Vec3 velocity;
        Vec3 rotation;
        Vec3 rotationSpeed;
        Vec4 color;
        Vec3 scale;
};

class Explosion {
        public:
                Explosion();
                Explosion(Vec3 pos, float power = 1.0f, bool sphere = false);
                void explode(Vec3 pos, float power = 1.0f, bool sphere = false);
                virtual ~Explosion();

                void drawAndUpdate(float dTime);
                bool isAlive() { return life > 0.0f; }

        protected:
                Vec3 newVelocity(bool sphere = false);

        protected:
                float life;
                float totLife;
                float power;
                explosionParticle       particles[NUM_EXPLOSION_PARTICLES];
                explosionDebris         debris[NUM_EXPLOSION_DEBRIS];
};

#endif

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