allow setting poison gas level

also commented out some find_water_level calls

src/decomp/game/mario.c

@@ -1321,7 +1321,7 @@ void update_mario_joystick_inputs(struct MarioState *m) {
  * Resolves wall collisions, and updates a variety of inputs.
  */
 void update_mario_geometry_inputs(struct MarioState *m) {
-    f32 gasLevel;
+    //f32 gasLevel;
     f32 ceilToFloorDist;
 
     f32_find_wall_collision(&m->pos[0], &m->pos[1], &m->pos[2], 60.0f, 50.0f);
@@ -1343,8 +1343,8 @@ void update_mario_geometry_inputs(struct MarioState *m) {
     }
 
     m->ceilHeight = vec3f_find_ceil(&m->pos[0], m->floorHeight, &m->ceil);
-    gasLevel = find_poison_gas_level(m->pos[0], m->pos[2]);
+    //gasLevel = find_poison_gas_level(m->pos[0], m->pos[2]);
-    m->waterLevel = find_water_level(m->pos[0], m->pos[2]);
+    //m->waterLevel = find_water_level(m->pos[0], m->pos[2]);
 
     if (m->floor != NULL) {
         m->floorAngle = atan2s(m->floor->normal.z, m->floor->normal.x);
@@ -1371,7 +1371,7 @@ void update_mario_geometry_inputs(struct MarioState *m) {
             m->input |= INPUT_IN_WATER;
         }
 
-        if (m->pos[1] < (gasLevel - 100.0f)) {
+        if (m->pos[1] < (m->gasLevel - 100.0f)) {
             m->input |= INPUT_IN_POISON_GAS;
         }
 
@@ -1831,6 +1831,8 @@ int init_mario(void) {
 
     gMarioState->waterLevel =
         find_water_level(gMarioSpawnInfo->startPos[0], gMarioSpawnInfo->startPos[2]);
+    gMarioState->gasLevel =
+        find_poison_gas_level(gMarioSpawnInfo->startPos[0], gMarioSpawnInfo->startPos[2]);
 
     gMarioState->area = gCurrentArea;
     gMarioState->marioObj = gMarioObject;

src/decomp/game/mario_step.c

@@ -269,7 +269,8 @@ static s32 perform_ground_quarter_step(struct MarioState *m, Vec3f nextPos) {
     floorHeight = find_floor(nextPos[0], nextPos[1], nextPos[2], &floor);
     ceilHeight = vec3f_find_ceil(nextPos, floorHeight, &ceil);
 
-    waterLevel = find_water_level(nextPos[0], nextPos[2]);
+    //waterLevel = find_water_level(nextPos[0], nextPos[2]);
+    waterLevel = m->waterLevel;
 
     m->wall = upperWall;
 
@@ -403,7 +404,8 @@ s32 perform_air_quarter_step(struct MarioState *m, Vec3f intendedPos, u32 stepAr
     floorHeight = find_floor(nextPos[0], nextPos[1], nextPos[2], &floor);
     ceilHeight = vec3f_find_ceil(nextPos, floorHeight, &ceil);
 
-    waterLevel = find_water_level(nextPos[0], nextPos[2]);
+    //waterLevel = find_water_level(nextPos[0], nextPos[2]);
+    waterLevel = m->waterLevel;
 
     m->wall = NULL;
 

src/decomp/include/types.h

@@ -325,6 +325,7 @@ struct MarioState
     /*0xC4*/ f32 unkC4;
 
     u16 curTerrain; // libsm64: added field
+    s32 gasLevel; // libsm64: added field
 };
 
 #endif // TYPES_H

src/libsm64.c

@@ -440,6 +440,20 @@ SM64_LIB_FN void sm64_set_mario_water_level(int32_t marioId, signed int level)
     gMarioState->waterLevel = level;
 }
 
+SM64_LIB_FN void sm64_set_mario_gas_level(int32_t marioId, signed int level)
+{
+    if( marioId >= s_mario_instance_pool.size || s_mario_instance_pool.objects[marioId] == NULL )
+    {
+        DEBUG_PRINT("Tried to use non-existant Mario with ID: %d", marioId);
+        return;
+    }
+
+    struct GlobalState *globalState = ((struct MarioInstance *)s_mario_instance_pool.objects[ marioId ])->globalState;
+    global_state_bind( globalState );
+
+    gMarioState->gasLevel = level;
+}
+
 SM64_LIB_FN void sm64_mario_take_damage(int32_t marioId, uint32_t damage, uint32_t subtype, float x, float y, float z)
 {
     if( marioId >= s_mario_instance_pool.size || s_mario_instance_pool.objects[marioId] == NULL )

src/libsm64.h

@@ -161,6 +161,7 @@ extern SM64_LIB_FN void sm64_set_mario_faceangle(int32_t marioId, float y);
 extern SM64_LIB_FN void sm64_set_mario_velocity(int32_t marioId, float x, float y, float z);
 extern SM64_LIB_FN void sm64_set_mario_forward_velocity(int32_t marioId, float vel);
 extern SM64_LIB_FN void sm64_set_mario_water_level(int32_t marioId, signed int level);
+extern SM64_LIB_FN void sm64_set_mario_gas_level(int32_t marioId, signed int level);
 extern SM64_LIB_FN void sm64_mario_take_damage(int32_t marioId, uint32_t damage, uint32_t subtype, float x, float y, float z);
 extern SM64_LIB_FN void sm64_mario_heal(int32_t marioId, uint8_t healCounter);
 extern SM64_LIB_FN void sm64_mario_kill(int32_t marioId);