mirror of
https://github.com/luksamuk/engine-psx.git
synced 2025-04-28 13:28:02 +03:00
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
#ifndef COLLISION_H
|
|
#define COLLISION_H
|
|
|
|
#include "level.h"
|
|
|
|
typedef struct {
|
|
uint8_t collided;
|
|
int32_t coord;
|
|
int32_t angle;
|
|
} CollisionEvent;
|
|
|
|
typedef enum {
|
|
CDIR_FLOOR = 0,
|
|
CDIR_RWALL = 1,
|
|
CDIR_CEILING = 2,
|
|
CDIR_LWALL = 3,
|
|
} LinecastDirection;
|
|
|
|
typedef enum {
|
|
OBJ_SIDE_NONE = 0,
|
|
OBJ_SIDE_LEFT = 1,
|
|
OBJ_SIDE_RIGHT = 2,
|
|
OBJ_SIDE_TOP = 3,
|
|
OBJ_SIDE_BOTTOM = 4,
|
|
} ObjectCollision;
|
|
|
|
CollisionEvent linecast(LevelData *lvl, TileMap128 *map128, TileMap16 *map16,
|
|
int32_t vx, int32_t vy, LinecastDirection direction,
|
|
uint8_t magnitude, LinecastDirection floor_direction);
|
|
|
|
|
|
/* Simpler collision detection algorithms */
|
|
|
|
// Intersection between two axis-aligned bounding boxes (AABBs).
|
|
int
|
|
aabb_intersects(int32_t a_vx, int32_t a_vy, int32_t aw, int32_t ah,
|
|
int32_t b_vx, int32_t b_vy, int32_t bw, int32_t bh);
|
|
|
|
// Intersection between player and object.
|
|
// Object collision side is always given with respect to the second informed
|
|
// hitbox (this assumes that the first hitbox is the player's).
|
|
ObjectCollision
|
|
hitbox_collision(int32_t p_vx, int32_t p_vy, int32_t pw, int32_t ph,
|
|
int32_t o_vx, int32_t o_vy, int32_t ow, int32_t oh);
|
|
|
|
#endif
|