2021-11-30 21:29:18 -06:00
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#ifndef TWODPHYSICS_H
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#define TWODPHYSICS_H
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2022-01-21 11:26:22 -06:00
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#include <chipmunk/chipmunk.h>
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2021-11-30 21:29:18 -06:00
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struct mGameObject;
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extern cpBody *ballBody;
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extern float phys2d_gravity;
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extern int physOn;
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extern cpSpace *space;
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struct phys2d_shape {
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cpShape *shape;
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struct mGameObject *go;
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};
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struct phys2d_circle {
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float radius;
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float offset[2];
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struct phys2d_shape shape;
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};
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struct phys2d_segment {
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float a[2];
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float b[2];
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float thickness;
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struct phys2d_shape shape;
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};
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struct phys2d_box {
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float w;
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float h;
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float r;
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float offset[2];
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struct phys2d_shape shape;
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};
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struct phys2d_edge {
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int n;
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float *points;
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float thickness;
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cpShape **shapes;
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struct phys2d_shape shape;
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};
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struct phys2d_poly {
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int n;
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float *points;
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float radius;
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struct phys2d_shape shape;
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};
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struct phys2d_circle *Make2DCircle(struct mGameObject *go);
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void phys2d_circleinit(struct phys2d_circle *circle,
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struct mGameObject *go);
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void phys2d_applycircle(struct phys2d_circle *circle);
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void phys2d_dbgdrawcircle(struct phys2d_circle *circle);
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struct phys2d_segment *Make2DSegment(struct mGameObject *go);
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void phys2d_seginit(struct phys2d_segment *seg, struct mGameObject *go);
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void phys2d_applyseg(struct phys2d_segment *seg);
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void phys2d_dbgdrawseg(struct phys2d_segment *seg);
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struct phys2d_box *Make2DBox(struct mGameObject *go);
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void phys2d_boxinit(struct phys2d_box *box, struct mGameObject *go);
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void phys2d_applybox(struct phys2d_box *box);
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void phys2d_dbgdrawbox(struct phys2d_box *box);
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struct phys2d_poly *Make2DPoly(struct mGameObject *go);
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void phys2d_polyinit(struct phys2d_poly *poly, struct mGameObject *go);
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void phys2d_applypoly(struct phys2d_poly *poly);
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void phys2d_dbgdrawpoly(struct phys2d_poly *poly);
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void phys2d_polyaddvert(struct phys2d_poly *poly);
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struct phys2d_edge *Make2DEdge(struct mGameObject *go);
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void phys2d_edgeinit(struct phys2d_edge *edge, struct mGameObject *go);
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void phys2d_applyedge(struct phys2d_edge *edge);
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void phys2d_edgeshapeapply(struct phys2d_shape *mshape, cpShape * shape);
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void phys2d_dbgdrawedge(struct phys2d_edge *edge);
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void phys2d_edgeaddvert(struct phys2d_edge *edge);
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void phys2d_init();
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void phys2d_update(float deltaT);
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void phys2d_apply();
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#endif
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