src/bz/collision/collision.h

   1 #ifndef BZ_COLLISION_COLLISION_H
   2 #define BZ_COLLISION_COLLISION_H
   3
   4 #include <bz/math/vector.h>
   5 #include <bz/memory/arena.h>
   6 #include <bz/types/common.h>
   7 #include <bz/types/identifier.h>
   8
   9 #ifdef __cplusplus
  10 extern "C" {
  11 #endif
  12
  13 enum BZCollisionBodyType {
  14         BZCollisionBodyTypeSolid,
  15 };
  16 typedef enum BZCollisionBodyType BZCollisionBodyType;
  17
  18 enum BZCollisionShapeType {
  19         BZCollisionShapeTypeUnknown,
  20         BZCollisionShapeTypeCircle,
  21         BZCollisionShapeTypeCirclePerimeter,
  22         BZCollisionShapeTypeLine,
  23         BZCollisionShapeTypeTriangle,
  24 };
  25 typedef enum BZCollisionShapeType BZCollisionShapeType;
  26
  27 struct BZCollisionShape {
  28         BZCollisionShapeType type;
  29         union {
  30                 struct {
  31                         BZVector circleOrigin;
  32                         float circleRadius;
  33                 };
  34                 struct {
  35                         BZVector lineOrigin;
  36                         BZVector lineDirection;
  37                         float lineMagnitude;
  38                 };
  39                 struct {
  40                         BZVector trianglePoint1;
  41                         BZVector trianglePoint2;
  42                         BZVector trianglePoint3;
  43                 };
  44         };
  45 };
  46 typedef struct BZCollisionShape BZCollisionShape;
  47
  48 //typedef uint32_t BZCollisionTag;
  49 typedef uint32_t BZCollisionTagMask;
  50
  51 typedef struct BZCollisionSpace BZCollisionSpace;
  52 typedef BZCollisionSpace * BZCollisionSpaceID;
  53
  54 typedef struct BZCollisionBody BZCollisionBody;
  55 typedef BZCollisionBody * BZCollisionBodyID;
  56
  57 extern BZCollisionSpaceID bzCollisionMakeSpace(BZMemoryArenaID arena, size_t maxBodies, const char *identifierFmt, ...);
  58
  59
  60
  61 extern void bzCollisionResetSpace(BZCollisionSpaceID space);
  62
  63 extern BZCollisionBodyID bzCollisionAddBody(BZCollisionSpaceID space, BZCollisionBodyType bodyType, const BZCollisionShape *shape, BZIdentifierHash tagHash, void *userParameter);
  64
  65 /////zones
  66
  67 extern bool bzCollisionResolve(BZVector *positionOut, void **userParameterOut, BZCollisionSpaceID space, const BZCollisionShape *shape, BZIdentifierHash tagHash);
  68
  69 extern void bzCollisionDrawDebug(BZCollisionSpaceID space);
  70
  71 #ifdef __cplusplus
  72 }
  73 #endif
  74
  75 #endif