85 lines
1.5 KiB
C
85 lines
1.5 KiB
C
/*
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* A vector with three floats
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*/
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typedef struct vector3f
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{
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float x;
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float y;
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float z;
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} vector3f;
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/*
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* A particle has a position and a direction
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*/
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typedef struct particle
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{
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vector3f *position;
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vector3f *direction;
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vector3f *color;
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float age;
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} particle;
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/*
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* An emitter has a position and contains an array of particles
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*/
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typedef struct emitter
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{
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vector3f *position;
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particle **particles;
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int pamount;
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} emitter;
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/*
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* A particle system consists of one or more emitter
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*/
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typedef struct particle_system
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{
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emitter **emitters;
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int eamount;
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} particle_system;
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/*
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* Initializes a particle
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*/
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particle *initParticle(vector3f *pos, vector3f *dir, vector3f *color, float age);
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/*
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* Initializes an emitter
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*/
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emitter *initEmitter(vector3f *pos, int pamount);
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/*
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* Initializes a particle system
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*/
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particle_system *initParticleSystem(int eamount);
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/*
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* Updates particle
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*/
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int updateParticles(float dt, particle_system *particleSystem);
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/*
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* Updates particle
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*/
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int drawParticles(particle_system *particleSystem);
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/*
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* Initializes a vector
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* For that it allocates memory that must be freed later
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*/
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vector3f *initVector3f(float x, float y, float z);
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/*
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* Frees an given emitter with all particles
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*/
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void freeEmitter(emitter *e);
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/*
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* Frees all emitters within an particle system
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*/
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void freeEmitters(particle_system *ps);
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/*
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* Frees all emitter and particles within a particle system
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*/
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void freeParticleSystem(particle_system *ps); |