Remove destination warp node requirement (#788)

Also add assertions for common warp crashes and remove the hardcoded get_mario_spawn_type table size

src/engine/level_script.c

@@ -523,8 +523,6 @@ static void level_cmd_create_warp_node(void) {
         warpNode->node.destArea = CMD_GET(u8, 4);
         warpNode->node.destNode = CMD_GET(u8, 5);
 
-        warpNode->object = NULL;
-
         warpNode->next = gAreas[sCurrAreaIndex].warpNodes;
         gAreas[sCurrAreaIndex].warpNodes = warpNode;
     }

src/game/area.c

@@ -139,7 +139,7 @@ u32 get_mario_spawn_type(struct Object *obj) {
     s32 i;
     const BehaviorScript *behavior = virtual_to_segmented(SEGMENT_BEHAVIOR_DATA, obj->behavior);
 
-    for (i = 0; i < 20; i++) {
+    for (i = 0; i < ARRAY_COUNT(sWarpBhvSpawnTable); i++) {
         if (sWarpBhvSpawnTable[i] == behavior) {
             return sSpawnTypeFromWarpBhv[i];
         }
@@ -158,25 +158,20 @@ struct ObjectWarpNode *area_get_warp_node(u8 id) {
     return node;
 }
 
-struct ObjectWarpNode *area_get_warp_node_from_params(struct Object *obj) {
+struct Object *get_destination_warp_object(u8 warpDestId) {
-    return area_get_warp_node(GET_BPARAM2(obj->oBehParams));
-}
-
-void load_obj_warp_nodes(void) {
-    struct ObjectWarpNode *warpNode;
     struct Object *children = (struct Object *) gObjParentGraphNode.children;
 
     do {
         struct Object *obj = children;
 
-        if (obj->activeFlags != ACTIVE_FLAG_DEACTIVATED && get_mario_spawn_type(obj) != 0) {
+        u8 bparam2 = GET_BPARAM2(obj->oBehParams);
-            warpNode = area_get_warp_node_from_params(obj);
+        if (warpDestId == bparam2 && obj->activeFlags != ACTIVE_FLAG_DEACTIVATED && get_mario_spawn_type(obj) != MARIO_SPAWN_NONE) {
-            if (warpNode != NULL) {
+            return obj;
-                warpNode->object = obj;
-            }
         }
     } while ((children = (struct Object *) children->header.gfx.node.next)
              != (struct Object *) gObjParentGraphNode.children);
+
+    return NULL;
 }
 
 void clear_areas(void) {
@@ -251,7 +246,6 @@ void load_area(s32 index) {
             spawn_objects_from_info(0, gCurrentArea->objectSpawnInfos);
         }
 
-        load_obj_warp_nodes();
         geo_call_global_function_nodes(&gCurrentArea->graphNode->node, GEO_CONTEXT_AREA_LOAD);
     }
 }

src/game/area.h

@@ -16,8 +16,7 @@ struct WarpNode {
 
 struct ObjectWarpNode {
     /*0x00*/ struct WarpNode node;
-    /*0x04*/ struct Object *object;
+    /*0x04*/ struct ObjectWarpNode *next;
-    /*0x08*/ struct ObjectWarpNode *next;
 };
 
 struct InstantWarp {
@@ -185,6 +184,7 @@ void override_viewport_and_clip(Vp *a, Vp *b, u8 c, u8 d, u8 e);
 void print_intro_text(void);
 u32 get_mario_spawn_type(struct Object *obj);
 struct ObjectWarpNode *area_get_warp_node(u8 id);
+struct Object *get_destination_warp_object(u8 warpDestId);
 void clear_areas(void);
 void clear_area_graph_nodes(void);
 void load_area(s32 index);

src/game/level_update.c

@@ -31,6 +31,7 @@
 #include "puppycam2.h"
 #include "puppyprint.h"
 #include "level_commands.h"
+#include "debug.h"
 
 #include "config.h"
 
@@ -348,16 +349,24 @@ void set_mario_initial_action(struct MarioState *m, u32 spawnType, u32 actionArg
 }
 
 void init_mario_after_warp(void) {
-    struct ObjectWarpNode *spawnNode = area_get_warp_node(sWarpDest.nodeId);
+    struct Object *object = get_destination_warp_object(sWarpDest.nodeId);
-    u32 marioSpawnType = get_mario_spawn_type(spawnNode->object);
+
+#ifdef DEBUG_ASSERTIONS
+    if (!object) {
+        char errorMsg[40];
+        sprintf(errorMsg, "No dest warp object found for: 0x%02X", sWarpDest.nodeId);
+        error(errorMsg);
+    }
+#endif
+    u32 marioSpawnType = get_mario_spawn_type(object);
 
     if (gMarioState->action != ACT_UNINITIALIZED) {
-        gPlayerSpawnInfos[0].startPos[0] = (s16) spawnNode->object->oPosX;
+        gPlayerSpawnInfos[0].startPos[0] = (s16) object->oPosX;
-        gPlayerSpawnInfos[0].startPos[1] = (s16) spawnNode->object->oPosY;
+        gPlayerSpawnInfos[0].startPos[1] = (s16) object->oPosY;
-        gPlayerSpawnInfos[0].startPos[2] = (s16) spawnNode->object->oPosZ;
+        gPlayerSpawnInfos[0].startPos[2] = (s16) object->oPosZ;
 
         gPlayerSpawnInfos[0].startAngle[0] = 0;
-        gPlayerSpawnInfos[0].startAngle[1] = spawnNode->object->oMoveAngleYaw;
+        gPlayerSpawnInfos[0].startAngle[1] = object->oMoveAngleYaw;
         gPlayerSpawnInfos[0].startAngle[2] = 0;
 
         if (marioSpawnType == MARIO_SPAWN_DOOR_WARP) {
@@ -372,8 +381,8 @@ void init_mario_after_warp(void) {
         init_mario();
         set_mario_initial_action(gMarioState, marioSpawnType, sWarpDest.arg);
 
-        gMarioState->interactObj = spawnNode->object;
+        gMarioState->interactObj = object;
-        gMarioState->usedObj = spawnNode->object;
+        gMarioState->usedObj = object;
     }
 
     reset_camera(gCurrentArea->camera);
@@ -569,6 +578,15 @@ void check_instant_warp(void) {
 
 s16 music_unchanged_through_warp(s16 arg) {
     struct ObjectWarpNode *warpNode = area_get_warp_node(arg);
+
+#ifdef DEBUG_ASSERTIONS
+    if (!warpNode) {
+        char errorMsg[40];
+        sprintf(errorMsg, "No source warp node found for: 0x%02X", (u8) arg);
+        error(errorMsg);
+    }
+#endif
+
     s16 levelNum = warpNode->node.destLevel & 0x7F;
 
     s16 destArea = warpNode->node.destArea;
@@ -896,6 +914,14 @@ void initiate_delayed_warp(void) {
                 default:
                     warpNode = area_get_warp_node(sSourceWarpNodeId);
 
+#ifdef DEBUG_ASSERTIONS
+                    if (!warpNode) {
+                        char errorMsg[40];
+                        sprintf(errorMsg, "No source warp node found for: 0x%02X", (u8) sSourceWarpNodeId);
+                        error(errorMsg);
+                    }
+#endif
+
                     initiate_warp(warpNode->node.destLevel & 0x7F, warpNode->node.destArea,
                                   warpNode->node.destNode, sDelayedWarpArg);