diff --git a/autogen/lua_definitions/functions.lua b/autogen/lua_definitions/functions.lua
index 363df1ff..c11aaeea 100644
--- a/autogen/lua_definitions/functions.lua
+++ b/autogen/lua_definitions/functions.lua
@@ -7366,6 +7366,14 @@ function obj_init_animation(obj, animIndex)
     -- ...
 end
 
+--- @param obj Object
+--- @param animIndex integer
+--- @param accel number
+--- @return nil
+function obj_init_animation_with_accel_and_sound(obj, animIndex, accel)
+    -- ...
+end
+
 --- @param obj Object
 --- @return integer
 function obj_is_hidden(obj)
@@ -7990,11 +7998,11 @@ end
 --- @param startX number
 --- @param startY number
 --- @param startZ number
---- @param endX number
---- @param endY number
---- @param endZ number
+--- @param dirX number
+--- @param dirY number
+--- @param dirZ number
 --- @return RayIntersectionInfo
-function collision_find_surface_on_ray(startX, startY, startZ, endX, endY, endZ)
+function collision_find_surface_on_ray(startX, startY, startZ, dirX, dirY, dirZ)
     -- ...
 end
 
diff --git a/docs/lua/functions-4.md b/docs/lua/functions-4.md
index 522f0eff..52a92822 100644
--- a/docs/lua/functions-4.md
+++ b/docs/lua/functions-4.md
@@ -5299,6 +5299,28 @@
 
 <br />
 
+## [obj_init_animation_with_accel_and_sound](#obj_init_animation_with_accel_and_sound)
+
+### Lua Example
+`obj_init_animation_with_accel_and_sound(obj, animIndex, accel)`
+
+### Parameters
+| Field | Type |
+| ----- | ---- |
+| obj | [Object](structs.md#Object) |
+| animIndex | `integer` |
+| accel | `number` |
+
+### Returns
+- None
+
+### C Prototype
+`void obj_init_animation_with_accel_and_sound(struct Object *obj, s32 animIndex, f32 accel);`
+
+[:arrow_up_small:](#)
+
+<br />
+
 ## [obj_is_hidden](#obj_is_hidden)
 
 ### Lua Example
@@ -7191,7 +7213,7 @@
 ## [collision_find_surface_on_ray](#collision_find_surface_on_ray)
 
 ### Lua Example
-`local RayIntersectionInfoValue = collision_find_surface_on_ray(startX, startY, startZ, endX, endY, endZ)`
+`local RayIntersectionInfoValue = collision_find_surface_on_ray(startX, startY, startZ, dirX, dirY, dirZ)`
 
 ### Parameters
 | Field | Type |
@@ -7199,15 +7221,15 @@
 | startX | `number` |
 | startY | `number` |
 | startZ | `number` |
-| endX | `number` |
-| endY | `number` |
-| endZ | `number` |
+| dirX | `number` |
+| dirY | `number` |
+| dirZ | `number` |
 
 ### Returns
 [RayIntersectionInfo](structs.md#RayIntersectionInfo)
 
 ### C Prototype
-`struct RayIntersectionInfo* collision_find_surface_on_ray(f32 startX, f32 startY, f32 startZ, f32 endX, f32 endY, f32 endZ);`
+`struct RayIntersectionInfo* collision_find_surface_on_ray(f32 startX, f32 startY, f32 startZ, f32 dirX, f32 dirY, f32 dirZ);`
 
 [:arrow_up_small:](#)
 
diff --git a/docs/lua/functions.md b/docs/lua/functions.md
index 29c6b88c..32f7d1c7 100644
--- a/docs/lua/functions.md
+++ b/docs/lua/functions.md
@@ -1374,6 +1374,7 @@
    - [obj_explode_and_spawn_coins](functions-4.md#obj_explode_and_spawn_coins)
    - [obj_has_behavior](functions-4.md#obj_has_behavior)
    - [obj_init_animation](functions-4.md#obj_init_animation)
+   - [obj_init_animation_with_accel_and_sound](functions-4.md#obj_init_animation_with_accel_and_sound)
    - [obj_is_hidden](functions-4.md#obj_is_hidden)
    - [obj_mark_for_deletion](functions-4.md#obj_mark_for_deletion)
    - [obj_pitch_to_object](functions-4.md#obj_pitch_to_object)
diff --git a/src/game/object_helpers.c b/src/game/object_helpers.c
index 350b7e01..b5290f3c 100644
--- a/src/game/object_helpers.c
+++ b/src/game/object_helpers.c
@@ -880,6 +880,17 @@ void cur_obj_init_animation_with_sound(s32 animIndex) {
     o->oSoundStateID = animIndex;
 }
 
+void obj_init_animation_with_accel_and_sound(struct Object *obj, s32 animIndex, f32 accel) {
+    if (obj != NULL) {
+        struct Animation **anims = obj->oAnimations;
+        if (anims != NULL) {
+            s32 animAccel = (s32)(accel * 65536.0f);
+            geo_obj_init_animation_accel(&obj->header.gfx, &anims[animIndex], animAccel);
+        }
+        obj->oSoundStateID = animIndex;
+    }
+}
+
 void cur_obj_init_animation_with_accel_and_sound(s32 animIndex, f32 accel) {
     struct Animation **anims = o->oAnimations;
     if (anims != NULL) {
diff --git a/src/game/object_helpers.h b/src/game/object_helpers.h
index 83c8c531..1ff092cd 100644
--- a/src/game/object_helpers.h
+++ b/src/game/object_helpers.h
@@ -135,6 +135,7 @@ void obj_scale_xyz(struct Object* obj, f32 xScale, f32 yScale, f32 zScale);
 void obj_scale(struct Object *obj, f32 scale);
 void cur_obj_scale(f32 scale);
 void cur_obj_init_animation_with_sound(s32 animIndex);
+void obj_init_animation_with_accel_and_sound(struct Object *obj, s32 animIndex, f32 accel);
 void cur_obj_init_animation_with_accel_and_sound(s32 animIndex, f32 accel);
 void cur_obj_init_animation(s32 animIndex);
 void obj_init_animation_with_sound(struct Object *obj, const struct Animation * const* animations, s32 animIndex);
diff --git a/src/pc/lua/smlua_functions_autogen.c b/src/pc/lua/smlua_functions_autogen.c
index 926a7fa2..803203ff 100644
--- a/src/pc/lua/smlua_functions_autogen.c
+++ b/src/pc/lua/smlua_functions_autogen.c
@@ -24343,6 +24343,28 @@ int smlua_func_obj_init_animation(lua_State* L) {
     return 1;
 }
 
+int smlua_func_obj_init_animation_with_accel_and_sound(lua_State* L) {
+    if (L == NULL) { return 0; }
+
+    int top = lua_gettop(L);
+    if (top != 3) {
+        LOG_LUA_LINE("Improper param count for '%s': Expected %u, Received %u", "obj_init_animation_with_accel_and_sound", 3, top);
+        return 0;
+    }
+
+    struct Object* obj = (struct Object*)smlua_to_cobject(L, 1, LOT_OBJECT);
+    if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 1, "obj_init_animation_with_accel_and_sound"); return 0; }
+    s32 animIndex = smlua_to_integer(L, 2);
+    if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 2, "obj_init_animation_with_accel_and_sound"); return 0; }
+    f32 accel = smlua_to_number(L, 3);
+    if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 3, "obj_init_animation_with_accel_and_sound"); return 0; }
+
+    extern void obj_init_animation_with_accel_and_sound(struct Object *obj, s32 animIndex, f32 accel);
+    obj_init_animation_with_accel_and_sound(obj, animIndex, accel);
+
+    return 1;
+}
+
 /*
 int smlua_func_obj_init_animation_with_sound(lua_State* L) {
     if (L == NULL) { return 0; }
@@ -26213,14 +26235,14 @@ int smlua_func_collision_find_surface_on_ray(lua_State* L) {
     if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 2, "collision_find_surface_on_ray"); return 0; }
     f32 startZ = smlua_to_number(L, 3);
     if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 3, "collision_find_surface_on_ray"); return 0; }
-    f32 endX = smlua_to_number(L, 4);
+    f32 dirX = smlua_to_number(L, 4);
     if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 4, "collision_find_surface_on_ray"); return 0; }
-    f32 endY = smlua_to_number(L, 5);
+    f32 dirY = smlua_to_number(L, 5);
     if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 5, "collision_find_surface_on_ray"); return 0; }
-    f32 endZ = smlua_to_number(L, 6);
+    f32 dirZ = smlua_to_number(L, 6);
     if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 6, "collision_find_surface_on_ray"); return 0; }
 
-    smlua_push_object(L, LOT_RAYINTERSECTIONINFO, collision_find_surface_on_ray(startX, startY, startZ, endX, endY, endZ));
+    smlua_push_object(L, LOT_RAYINTERSECTIONINFO, collision_find_surface_on_ray(startX, startY, startZ, dirX, dirY, dirZ));
 
     return 1;
 }
@@ -30470,6 +30492,7 @@ void smlua_bind_functions_autogen(void) {
     smlua_bind_function(L, "obj_explode_and_spawn_coins", smlua_func_obj_explode_and_spawn_coins);
     smlua_bind_function(L, "obj_has_behavior", smlua_func_obj_has_behavior);
     smlua_bind_function(L, "obj_init_animation", smlua_func_obj_init_animation);
+    smlua_bind_function(L, "obj_init_animation_with_accel_and_sound", smlua_func_obj_init_animation_with_accel_and_sound);
     //smlua_bind_function(L, "obj_init_animation_with_sound", smlua_func_obj_init_animation_with_sound); <--- UNIMPLEMENTED
     smlua_bind_function(L, "obj_is_hidden", smlua_func_obj_is_hidden);
     smlua_bind_function(L, "obj_mark_for_deletion", smlua_func_obj_mark_for_deletion);
diff --git a/src/pc/lua/utils/smlua_collision_utils.c b/src/pc/lua/utils/smlua_collision_utils.c
index a078550b..e867e1e2 100644
--- a/src/pc/lua/utils/smlua_collision_utils.c
+++ b/src/pc/lua/utils/smlua_collision_utils.c
@@ -156,11 +156,11 @@ struct GlobalObjectCollisionData gGlobalObjectCollisionData = {
     .wooden_signpost_seg3_collision_0302DD80         = (Collision*) wooden_signpost_seg3_collision_0302DD80,
 };
 
-struct RayIntersectionInfo* collision_find_surface_on_ray(f32 startX, f32 startY, f32 startZ, f32 endX, f32 endY, f32 endZ) {
+struct RayIntersectionInfo* collision_find_surface_on_ray(f32 startX, f32 startY, f32 startZ, f32 dirX, f32 dirY, f32 dirZ) {
     static struct RayIntersectionInfo info = { 0 };
     Vec3f orig = { startX, startY, startZ };
-    Vec3f end = { endX, endY, endZ };
-    find_surface_on_ray(orig, end, &info.surface, info.hitPos);
+    Vec3f dir = { dirX, dirY, dirZ };
+    find_surface_on_ray(orig, dir, &info.surface, info.hitPos);
     return &info;
 }
 
diff --git a/src/pc/lua/utils/smlua_collision_utils.h b/src/pc/lua/utils/smlua_collision_utils.h
index 87e95479..8430f957 100644
--- a/src/pc/lua/utils/smlua_collision_utils.h
+++ b/src/pc/lua/utils/smlua_collision_utils.h
@@ -112,7 +112,7 @@ struct GlobalObjectCollisionData {
 
 extern struct GlobalObjectCollisionData gGlobalObjectCollisionData;
 
-struct RayIntersectionInfo* collision_find_surface_on_ray(f32 startX, f32 startY, f32 startZ, f32 endX, f32 endY, f32 endZ);
+struct RayIntersectionInfo* collision_find_surface_on_ray(f32 startX, f32 startY, f32 startZ, f32 dirX, f32 dirY, f32 dirZ);
 
 struct Surface* get_water_surface_pseudo_floor(void);