From ff41ecfceb3e52467dbef5eb31f0ebab3bb2988b Mon Sep 17 00:00:00 2001
From: MeltyPlayer <mastergamepro@hotmail.com>
Date: Mon, 7 Nov 2022 19:40:46 -0600
Subject: [PATCH] Exposed libsm64's raycasting/collision logic via its API.

---
 src/libsm64.c | 41 +++++++++++++++++++++++++++++++++++++++++
 src/libsm64.h | 10 ++++++++++
 2 files changed, 51 insertions(+)

diff --git a/src/libsm64.c b/src/libsm64.c
index 003837a..9db7347 100644
--- a/src/libsm64.c
+++ b/src/libsm64.c
@@ -268,3 +268,44 @@ SM64_LIB_FN void sm64_surface_object_delete( uint32_t objectId )
 
     surfaces_unload_object( objectId );
 }
+
+
+SM64_LIB_FN s32 sm64_surface_find_wall_collision(f32 *xPtr, f32 *yPtr, f32 *zPtr, f32 offsetY, f32 radius) 
+{
+    return f32_find_wall_collision( xPtr, yPtr, zPtr, offsetY, radius );
+}
+
+SM64_LIB_FN s32 sm64_surface_find_wall_collisions(struct WallCollisionData *colData)
+{
+    return find_wall_collisions( colData );
+}
+
+SM64_LIB_FN f32 sm64_surface_find_ceil(f32 posX, f32 posY, f32 posZ, struct Surface **pceil)
+{
+    return find_ceil( posX, posY, posZ, pceil );
+}
+
+SM64_LIB_FN f32 sm64_surface_find_floor_height_and_data(f32 xPos, f32 yPos, f32 zPos, struct FloorGeometry **floorGeo)
+{
+    return find_floor_height_and_data( xPos, yPos, zPos, floorGeo );
+}
+
+SM64_LIB_FN f32 sm64_surface_find_floor_height(f32 x, f32 y, f32 z)
+{
+    return find_floor_height( x, y, z );
+}
+
+SM64_LIB_FN f32 sm64_surface_find_floor(f32 xPos, f32 yPos, f32 zPos, struct Surface **pfloor)
+{
+    return find_floor( xPos, yPos, zPos, pfloor );
+}
+
+SM64_LIB_FN f32 sm64_surface_find_water_level(f32 x, f32 z)
+{
+    return find_water_level( x, z );
+}
+
+SM64_LIB_FN f32 sm64_surface_find_poison_gas_level(f32 x, f32 z)
+{
+    return find_poison_gas_level( x, z );
+}
diff --git a/src/libsm64.h b/src/libsm64.h
index 2a10146..b45e272 100644
--- a/src/libsm64.h
+++ b/src/libsm64.h
@@ -5,6 +5,7 @@
 #include <stdint.h>
 #include <stdbool.h>
 
+#include "decomp/engine/surface_collision.h"
 #include "decomp/include/types.h"
 
 #ifdef _WIN32
@@ -90,4 +91,13 @@ extern SM64_LIB_FN uint32_t sm64_surface_object_create( const struct SM64Surface
 extern SM64_LIB_FN void sm64_surface_object_move( uint32_t objectId, const struct SM64ObjectTransform *transform );
 extern SM64_LIB_FN void sm64_surface_object_delete( uint32_t objectId );
 
+extern SM64_LIB_FN s32 sm64_surface_find_wall_collision(f32 *xPtr, f32 *yPtr, f32 *zPtr, f32 offsetY, f32 radius);
+extern SM64_LIB_FN s32 sm64_surface_find_wall_collisions(struct WallCollisionData *colData);
+extern SM64_LIB_FN f32 sm64_surface_find_ceil(f32 posX, f32 posY, f32 posZ, struct Surface **pceil);
+extern SM64_LIB_FN f32 sm64_surface_find_floor_height_and_data(f32 xPos, f32 yPos, f32 zPos, struct FloorGeometry **floorGeo);
+extern SM64_LIB_FN f32 sm64_surface_find_floor_height(f32 x, f32 y, f32 z);
+extern SM64_LIB_FN f32 sm64_surface_find_floor(f32 xPos, f32 yPos, f32 zPos, struct Surface **pfloor);
+extern SM64_LIB_FN f32 sm64_surface_find_water_level(f32 x, f32 z);
+extern SM64_LIB_FN f32 sm64_surface_find_poison_gas_level(f32 x, f32 z);
+
 #endif//LIB_SM64_H