Item handling updates. Keys should stack.

src/entities/items/item.c

@@ -135,6 +135,7 @@ static void bobPickupItem(void)
 		if (i->thinkTime == 0)
 		{
 			addItem(i);
+			i->alive = ALIVE_DEAD;
 			game.keysFound++;
 			updateObjective("KEY");
 

src/game/game.c

@@ -64,10 +64,59 @@ void addDefeatedTarget(char *name)
 	}
 }
 
+int getNumItemsCarried(void)
+{
+	int rtn, i;
+
+	rtn = 0;
+
+	for (i = 0 ; i < MAX_KEY_TYPES ; i++)
+	{
+		if (game.keys[i].value.i > 0)
+		{
+			rtn++;
+		}
+	}
+
+	for (i = 0 ; i < MAX_ITEMS ; i++)
+	{
+		if (world.bob->items[i] != NULL)
+		{
+			rtn++;
+		}
+	}
+
+	return rtn;
+}
+
 int addItem(Entity *item)
 {
+	Tuple *t;
 	int i;
 
+	if (getNumItemsCarried() < MAX_ITEMS)
+	{
+		if (item->type == ET_KEY)
+		{
+			for (i = 0 ; i < MAX_KEY_TYPES ; i++)
+			{
+				t = &game.keys[i];
+
+				if (strcmp(t->key, item->name) == 0)
+				{
+					t->value.i++;
+					return 1;
+				}
+				else if (strcmp(t->key, "") == 0)
+				{
+					STRNCPY(t->key, item->name, MAX_NAME_LENGTH);
+					t->value.i++;
+					return 1;
+				}
+			}
+		}
+		else
+		{
 			for (i = 0 ; i < MAX_ITEMS ; i++)
 			{
 				if (world.bob->items[i] == NULL)
@@ -77,6 +126,8 @@ int addItem(Entity *item)
 					return 1;
 				}
 			}
+		}
+	}
 	
 	return 0;
 }
@@ -85,6 +136,17 @@ int hasItem(char *name)
 {
 	int i;
 	Item *item;
+	Tuple *t;
+
+	for (i = 0 ; i < MAX_KEY_TYPES ; i++)
+	{
+		t = &game.keys[i];
+
+		if (strcmp(t->key, name) == 0 && t->value.i > 0)
+		{
+			return 1;
+		}
+	}
 	
 	for (i = 0 ; i < MAX_ITEMS ; i++)
 	{
@@ -121,6 +183,7 @@ void removeItem(char *name)
 {
 	int i;
 	Item *item;
+	Tuple *t;
 	
 	for (i = 0 ; i < MAX_ITEMS ; i++)
 	{
@@ -128,8 +191,19 @@ void removeItem(char *name)
 		
 		if (item != NULL && strcmp(item->name, name) == 0)
 		{
-			item->flags &= ~EF_GONE;
-			item->alive = ALIVE_DEAD;
+			world.bob->items[i] = NULL;
+			return;
+		}
+	}
+
+	for (i = 0 ; i < MAX_KEY_TYPES ; i++)
+	{
+		t = &game.keys[i];
+
+		if (strcmp(t->key, name) == 0 && t->value.i > 0)
+		{
+			t->value.i--;
+			return;
 		}
 	}
 }
@@ -137,10 +211,20 @@ void removeItem(char *name)
 void dropCarriedItems(void)
 {
 	int i;
+	Entity *item;
 	
 	for (i = 0 ; i < MAX_ITEMS ; i++)
 	{
+		item = world.bob->items[i];
 
+		if (item != NULL)
+		{
+			item->flags &= ~EF_GONE;
+			item->x = world.bob->checkpoints[0].x;
+			item->y = world.bob->checkpoints[0].y;
+			/* items can only be collected if they have a thinktime of 0 */
+			item->thinkTime = FPS * 9999;
+		}
 	}
 }
 

src/world/entities.c

@@ -898,11 +898,10 @@ void dropCarriedItem(void)
 		i->x = (e->x + e->w / 2) - i->w / 2;
 		i->y = e->y;
 
-		i->dx = i->dy = 0;
-
-		world.entityTail->next = (Entity*)i;
-		world.entityTail = (Entity*)i;
-		world.entityTail->next = NULL;
+		i->dx = 0;
+		i->dy = -9;
+		i->flags &= ~EF_GONE;
+		i->thinkTime = FPS;
 
 		e->carriedItem = NULL;
 	}