particles.h

Go to the documentation of this file.

 
#pragma once
 
#include <SDL.h>
#include <vec2.h>
#include <stdbool.h>
#include <timer.h>
#include <camera.h>
#include <colliders.h>
 
typedef struct Particle {
    Vec2 position;              
    Vec2 direction;             
    float speed;                
    bool alive;                 
    float maxLifeTime;          
    float timeAlive;            
    // Visual properties
    SDL_Color color;            
    Vec2 size;                  
    float rotation;             
    float rotationSpeed;        
    // Physics properties
    Vec2 velocity;              
    Vec2 acceleration;          
    float drag;                 
    // Behavior
    float initialSpeed;         
    SDL_Color initialColor;     
    Vec2 initialSize;           
    bool cameraLock;            
    int bounceCount;            
    Collider* collider;         
} Particle;
 
typedef struct ParticleEmitter {
    // Emitter Properties
    Vec2 position;                          
    // Emission Configuration
    float emissionRate;                     
    int emissionNumber;                     
    int maxParticles;                       
    Vec2 direction;                         
    float angleRange;                       
    // Emission control
    bool active;                            
    float emitterLifetime;                  
    float emitterAge;                       
    int loopCount;                          
    bool destroyWhenDone;                   
    // Particle Properties
    bool cameraLocked;                      
    float particleLifetime;                 
    float particleSpeed;                    
    void (*custom_Movement)(Particle*);     
    // Visual Properties
    SDL_Color startColor;                   
    SDL_Color endColor;                     
    Vec2 startSize;                         
    Vec2 endSize;                           
    SDL_Texture* particleTexture;           
    // Physics
    Vec2 gravity;                           
    float drag;                             
    // Runtime State
    Timer* emissionTimer;                   
    Particle* particles;                    
    int readyIndex;                         
    struct ParticleEmitter** selfReference; 
    //Collider properties
    bool useCollider;                       
    Collider collider;                      
} ParticleEmitter;
 
void ParticleEmitter_SetMaxParticles(ParticleEmitter* emitter, int maxParticles);
 
void ParticleEmitter_Emit(ParticleEmitter* emitter);
 
int ParticleEmitter_GetNextReady(ParticleEmitter* emitter);
 
void ParticleEmitter_UpdateParticles(ParticleEmitter* emitter);
 
void ParticleEmitter_Update(ParticleEmitter* emitter);
 
void ParticleEmitter_ActivateOnce(ParticleEmitter* emitter);
 
void ParticleEmitter_Deactivate(ParticleEmitter* emitter);
 
void ParticleEmitter_Render(ParticleEmitter* emitter);
 
void ParticleEmitter_DestroyEmitter(ParticleEmitter* emitter);
 
bool ParticleEmitter_ParticlesAlive(ParticleEmitter* emitter);