A start to "priced" items

src/item.c

@@ -21,16 +21,19 @@
 #include "util.h"
 #include "mixer.h"
 #include "gui.h"
+#include "actiontextbuilder.h"
 
 Item *
 item_create(void)
 {
 	Item *item = ec_malloc(sizeof(Item));
 	item->sprite = NULL;
+	item->subsprites = NULL;
 	item->collected = false;
 	item->openable = false;
 	item->opened = false;
 	m_strcpy(item->label, 50, "");
+	item->price = 0.0;
 	item->value = 0.0;
 	item->items = NULL;
 	item->effect = NULL;
@@ -41,11 +44,20 @@ void
 item_render(Item *item, Camera *cam)
 {
 	sprite_render(item->sprite, cam);
+
+	LinkedList *subsprites = item->subsprites;
+	while (subsprites)
+		sprite_render(linkedlist_pop(&subsprites), cam);
 }
 
 void
 item_collected(Item *item, Player *player)
 {
+	if (item->price > player->gold){
+		gui_log("You don't have enough gold to buy %s", item->label);
+		return;
+	}
+
 	if (item->collected || item->opened)
 		return;
 
@@ -60,6 +72,13 @@ item_collected(Item *item, Player *player)
 			gui_log("You find nothing inside");
 	}
 
+	if (item->price) {
+	    player->gold -= item->price;
+	    char costLabel[10];
+	    m_sprintf(costLabel, 10, "-%d", item->price);
+	    actiontextbuilder_create_text(costLabel, C_YELLOW, &player->sprite->pos);
+	}
+
 	if (item->effect != NULL)
 		item->effect(item, player);
 
@@ -76,6 +95,9 @@ item_destroy(Item *item)
 	if (item->sprite)
 		sprite_destroy(item->sprite);
 
+	while (item->subsprites != NULL)
+		sprite_destroy(linkedlist_pop(&item->subsprites));
+
 	while (item->items != NULL)
 		item_destroy(linkedlist_pop(&item->items));
 

src/item.h

@@ -29,10 +29,12 @@
 
 typedef struct Item_t {
 	Sprite *sprite;
+	LinkedList *subsprites;
 	bool collected;
 	bool openable;
 	bool opened;
 	char label[50];
+	double price;
 	double value;
 	LinkedList *items;
 	void (*effect)(struct Item_t *, Player *);

src/item_builder.c

@@ -100,6 +100,26 @@ create_item(const char *path0, const char *path1, SDL_Rect clip, void (*cb)(Item
 	return item;
 }
 
+static Item *
+create_priced_item(double price, const char *path0, const char *path1, SDL_Rect clip, void (*cb)(Item *, Player*))
+{
+	Item *item = create_item(path0, path1, clip, cb);
+	item->price = price;
+	Sprite *priceSprite = sprite_create();
+	sprite_load_text_texture(priceSprite, "GUI/SDS_8x8.ttf", 0, 8, 1);
+	char priceLabel[10];
+	m_sprintf(priceLabel, 10, "%d", item->price);
+	texture_load_from_text(priceSprite->textures[0],
+			       priceLabel,
+			       C_YELLOW,
+			       C_BLACK,
+			       builder->renderer);
+
+	priceSprite->pos = item->sprite->pos;
+	linkedlist_append(&item->subsprites, priceSprite);
+	return item;
+}
+
 static void
 pickup_gold(Item *item, Player *player)
 {