36 lines
697 B
C
36 lines
697 B
C
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#ifndef PARTICLE_H
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#define PARTICLE_H
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#include <chipmunk/chipmunk.h>
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struct particle {
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cpVect pos;
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cpVect v; /* velocity */
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double angle;
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double av; /* angular velocity */
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union {
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double life;
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struct particle *next;
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};
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};
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struct emitter {
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struct particle *particles;
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struct particle *first;
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int max;
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double life;
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void (*seeder)(struct particle *p); /* Called to initialize each particle */
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};
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struct emitter make_emitter();
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void free_emitter(struct emitter e);
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void start_emitter(struct emitter e);
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void pause_emitter(struct emitter e);
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void stop_emitter(struct emitter e);
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void emitter_step(struct emitter e, double dt);
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#endif
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