entity stuff

include/entity.h

@@ -2,15 +2,18 @@
 #define ENTITY_H
 
 #include "global.h"
+typedef struct {
+	u8 type;
+    u8 subtype;
+    u8 parameter1;
+    u8 parameter2;
+} EntityType;
 
 typedef struct
 {
     u32 *field_0x0;
     u32 * field_0x4;
-    u8 type;
+	EntityType entityType;
-    u8 subtype;
-    u8 parameter1;
-    u8 parameter2;
     u8 action;
     u8 previousActionFlag;
     u8 parameter3;
@@ -79,4 +82,5 @@ typedef struct
 	u8 filler[12];
     u32 * field_0x84;
 } Entity;
+
 #endif

include/entityData.h

@@ -3,7 +3,7 @@
 #include "global.h"
 typedef struct {
 	u8 entityType;
-	u8 unk;
+	u8 field_0x1;
 	u8 entitySubtype;
 	u8 entityParameter1;
 	u32 entityParameter2;

src/createEnemy.c

@@ -10,9 +10,9 @@ Entity * CreateEnemy(u32 subtype, u32 param1)
     
     enemy = sub_0805E678();
     if (enemy != NULL) {
-        enemy->type = 3;
+        (enemy->entityType).type = 3;
-        enemy->subtype = subtype;
+        (enemy->entityType).subtype = subtype;
-        enemy->parameter1 = param1;
+        (enemy->entityType).parameter1 = param1;
         sub_0805EA2C(enemy,4);
     }
     return enemy;

src/createEntity.c

@@ -0,0 +1,51 @@
+#include "entity.h"
+#include "entityData.h"
+#include "global.h"
+
+extern Entity * sub_0805EB9C(u32, u32); 
+extern Entity * sub_0805E768();
+extern void sub_0804AEB0(Entity *, EntityData *);
+extern u32 sub_0804AF0C(Entity *, EntityData *);
+extern void sub_08016A30(Entity *);
+extern u32 gUnk_03000BF0;
+
+Entity * CreateEntity(EntityData *param_1)
+{
+    Entity *preexisting;
+    Entity *entity;
+    s32 type;
+    
+    type = param_1->entityType & 15;
+    if (((param_1->field_0x1 & 240) == 80) &&
+       (preexisting = sub_0805EB9C(type,param_1->entitySubtype), preexisting != NULL)) {
+        entity = NULL;
+    }
+    else {
+        entity = sub_0805E768(); //Get empty entity
+        if (entity != NULL) {
+            (entity->entityType).type = type;
+            (entity->entityType).subtype = param_1->entitySubtype;
+            (entity->entityType).parameter1 = param_1->entityParameter1;
+            sub_0804AEB0(entity,param_1);
+            if ((param_1->field_0x1 & 240) != 16) {
+                (entity->entityType).parameter2 = *(u8 *)&param_1->entityParameter2;
+                    /* i suspect this is where the entity's behavior is defined. Not sure. */
+                entity->parameter3 = (u8)((u32)param_1->entityParameter2 >> 8);
+                if ((type != 9) && (sub_0804AF0C(entity,param_1), entity->field_0x4 != NULL)) {
+                    if ((param_1->entityType & 16) == 0) {
+                        if ((param_1->entityType & 32) != 0) {
+                            entity->collisionLayer = 2;
+                            return entity;
+                        }
+                        if ((gUnk_03000BF0 & 2) == 0) {
+                            sub_08016A30(entity);
+                            return entity;
+                        }
+                    }
+                    entity->collisionLayer = 1;
+                }
+            }
+        }
+    }
+    return entity;
+}