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MorsGames
GitHub Repository: MorsGames/sm64plus
 Path: blob/master/src/engine/surface_collision.h
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#ifndef SURFACE_COLLISION_H

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#define SURFACE_COLLISION_H

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#include <PR/ultratypes.h>

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#include "types.h"

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// Range level area is 16384x16384 (-8192 to +8192 in x and z)

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#define LEVEL_BOUNDARY_MAX  0x2000 // 8192

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#define CELL_SIZE           (1 << 10) // 0x400

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#define CELL_HEIGHT_LIMIT           20000

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#define FLOOR_LOWER_LIMIT           -11000

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#define FLOOR_LOWER_LIMIT_MISC      (FLOOR_LOWER_LIMIT + 1000)

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// same as FLOOR_LOWER_LIMIT_MISC, explicitly for shadow.c 

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// It doesn't match if ".0" is removed or ".f" is added

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#define FLOOR_LOWER_LIMIT_SHADOW    (FLOOR_LOWER_LIMIT + 1000.0)

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struct WallCollisionData

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{

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    /*0x00*/ f32 x, y, z;

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    /*0x0C*/ f32 offsetY;

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    /*0x10*/ f32 radius;

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    /*0x14*/ s16 unused;

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    /*0x16*/ s16 numWalls;

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    /*0x18*/ struct Surface *walls[4];

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};

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struct FloorGeometry

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{

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    f32 unused[4]; // possibly position data?

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    f32 normalX;

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    f32 normalY;

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    f32 normalZ;

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    f32 originOffset;

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};

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s32 f32_find_wall_collision(f32 *xPtr, f32 *yPtr, f32 *zPtr, f32 offsetY, f32 radius);

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s32 find_wall_collisions(struct WallCollisionData *colData);

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f32 find_ceil(f32 posX, f32 posY, f32 posZ, struct Surface **pceil);

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f32 find_floor_height_and_data(f32 xPos, f32 yPos, f32 zPos, struct FloorGeometry **floorGeo);

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f32 find_floor_height(f32 x, f32 y, f32 z);

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f32 find_floor(f32 xPos, f32 yPos, f32 zPos, struct Surface **pfloor);

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f32 find_water_level(f32 x, f32 z);

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f32 find_poison_gas_level(f32 x, f32 z);

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void debug_surface_list_info(f32 xPos, f32 zPos);

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#endif // SURFACE_COLLISION_H

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