1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/psys.h	Wed Aug 19 09:13:48 2015 +0300
     1.3 @@ -0,0 +1,71 @@
     1.4 +#ifndef PSYS_H_
     1.5 +#define PSYS_H_
     1.6 +
     1.7 +#include <vector>
     1.8 +#include "vec3.h"
     1.9 +#include "image.h"
    1.10 +
    1.11 +struct PSysParam {
    1.12 +	// emitter parameters
    1.13 +	float spawn_rate;
    1.14 +	float spawn_range;
    1.15 +	float life, life_range;
    1.16 +	float size, size_range;
    1.17 +	Vector3 gravity;
    1.18 +	Image *spawn_map;
    1.19 +	float spawn_map_speed;
    1.20 +
    1.21 +	// particle parameters
    1.22 +	Image *pimg;
    1.23 +	Vector3 pcolor_start, pcolor_mid, pcolor_end;
    1.24 +	float palpha_start, palpha_mid, palpha_end;
    1.25 +	float pscale_start, pscale_mid, pscale_end;
    1.26 +};
    1.27 +
    1.28 +void psys_default(PSysParam *pp);
    1.29 +
    1.30 +struct Particle {
    1.31 +	Vector3 pos, vel;
    1.32 +	Vector3 color;
    1.33 +	float alpha;
    1.34 +	float life, max_life;
    1.35 +	float size, scale;
    1.36 +
    1.37 +	struct Particle *next;
    1.38 +};
    1.39 +
    1.40 +class ParticleSystem {
    1.41 +private:
    1.42 +	float spawn_pending;
    1.43 +	Particle *plist;
    1.44 +	int pcount;
    1.45 +
    1.46 +	float active_time;
    1.47 +	bool expl;
    1.48 +	Vector3 expl_cent;
    1.49 +	float expl_force, expl_dur;
    1.50 +	float expl_life;
    1.51 +
    1.52 +	Vector3 *smcache;
    1.53 +	int smcache_max[256];
    1.54 +	void gen_spawnmap(int count);
    1.55 +
    1.56 +	void spawn_particle();
    1.57 +
    1.58 +public:
    1.59 +	Vector3 pos;
    1.60 +	PSysParam pp;
    1.61 +	bool active;
    1.62 +
    1.63 +	ParticleSystem();
    1.64 +	~ParticleSystem();
    1.65 +
    1.66 +	void explode(const Vector3 &c, float force, float dur = 1.0, float life = 0.0);
    1.67 +
    1.68 +	bool alive() const;
    1.69 +
    1.70 +	void update(float dt);
    1.71 +	void draw() const;
    1.72 +};
    1.73 +
    1.74 +#endif	// PSYS_H_