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#ifndef PARTICLE_H
#define PARTICLE_H
#include "my_math.h"
#include "object.h"
struct particle {
v2 pos;
v2 vel;
v4 color;
f32 life;
};
#define default_particle { \
.pos = {0.0f, 0.0f}, \
.vel = {0.0f, 0.0f}, \
.color = {1.0f, 1.0f, 1.0f, 1.0f}, \
.life = 0.0f \
}
#define MAX_PARTICLES 500
struct particle_generator {
struct particle particles[MAX_PARTICLES];
i32 new;
u32 shader;
u32 texture;
u32 vao;
};
void respawn_particle(struct particle *particle, struct object object, v2 offset);
i32 find_unused_particle(struct particle_generator generator);
struct particle_generator init_generator(i32 new, u32 shader, u32 texture);
void update_particles(struct particle_generator *generator, struct object object, f32 dt, v2 offset);
void render_particles(struct particle_generator generator);
void reset_particles(struct particle_generator *generator);
#endif
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