Merge branch 'feat/shop' into piernov

7 files changed, 166 insertions, 2 deletions

diff --git a/inc/Inventory.inc b/inc/Inventory.inc
new file mode 100644
index 0000000..efe54f2
--- /dev/null
+++ b/inc/Inventory.inc
@@ -0,0 +1,41 @@
+<?php
+
+class Inventory {
+
+	public $items = array();
+
+	public static function created() {
+		return !empty($_SESSION["inventory"]);
+	}
+
+	public static function sendContent() {
+		return self::get()->items;
+	}
+
+	public static function get() {
+		if(!self::created()) {
+			$_SESSION["inventory"] = new Inventory();
+		}
+		return $_SESSION["inventory"];
+	}
+
+	private function _addItem($item) {
+		$this->items[] = $item;
+	}
+
+	public static function addItem($item) {
+		$inv = self::get();
+		$inv->_addItem($item);
+	}
+
+	private function _removeItem($item) {
+		unset($this->items[array_search($item, $this->items)]);
+	}
+
+	public static function removeItem($item) {
+		$inv = self::get();
+		$inv->_removeItem($item);
+	}
+}
+
+?>
diff --git a/inc/Item.inc b/inc/Item.inc
new file mode 100644
index 0000000..bf77818
--- /dev/null
+++ b/inc/Item.inc
@@ -0,0 +1,17 @@
+<?php
+
+class Item {
+	public $name = "";
+	public $cost = 0;
+	public $icon = "";
+	public $desc = "";
+
+	function __construct($name, $cost, $icon, $desc) {
+		$this->name = $name;
+		$this->cost = $cost;
+		$this->icon = $icon;
+		$this->desc = $desc;
+	}
+}
+
+?>
diff --git a/inc/account.inc b/inc/account.inc
new file mode 100644
index 0000000..19f311d
--- /dev/null
+++ b/inc/account.inc
@@ -0,0 +1,18 @@
+<?php
+require_once("messages.inc");
+
+function debitAccount($amount) {
+	if($_SESSION["mine"]["gold"] <= $amount) {
+		sendError("gold_insufficient");
+		return false;
+	}
+	$_SESSION["mine"]["gold"] -= $amount;
+	return true;
+}
+
+function creditAccount($amount) {
+	$_SESSION["mine"]["gold"] += $amount;
+}
+
+
+?>
diff --git a/inc/craftmine.inc b/inc/craftmine.inc
new file mode 100644
index 0000000..a30538c
--- /dev/null
+++ b/inc/craftmine.inc
@@ -0,0 +1,14 @@
+<?php
+
+require_once("mine.inc");
+require_once("shop.inc");
+
+function sendCraftMine() {
+	$data = array("gold" => sendMine(),
+		"shop" => sendShop(),
+		"inventory" => Inventory::sendContent(),
+	);
+	echo json_encode($data);
+}
+
+?>
diff --git a/inc/messages.inc b/inc/messages.inc
new file mode 100644
index 0000000..f1ca8b3
--- /dev/null
+++ b/inc/messages.inc
@@ -0,0 +1,15 @@
+<?php
+
+$messages = array(
+	"shop_already_built" => "You have already built a shop.",
+	"gold_insufficient" => "You don't have enough gold.",
+	"shop_missing_item" => "This item does not exist.",
+);
+
+function sendError($msg) {
+	global $messages;
+	$text = $messages[$msg];
+	echo json_encode(array("error" => $text));
+}
+
+?>
diff --git a/inc/mine.inc b/inc/mine.inc
index aea04ad..6a04cc4 100644
--- a/inc/mine.inc
+++ b/inc/mine.inc
@@ -8,13 +8,13 @@ function withdrawMine() {
 	$amount = intval($_POST["amount"]);
 	if($amount == 0) return;
 	$_SESSION["mine"]["gold"] += $amount;
-	echo $_SESSION["mine"]["gold"];
+	echo json_encode($_SESSION["mine"]["gold"]);
 }
 
 function sendMine() {
 	if(empty($_SESSION["mine"])) initCraftMine();
 	$mine = $_SESSION["mine"];
-	echo $mine["gold"];
+	return $mine["gold"];
 }
 
 
diff --git a/inc/shop.inc b/inc/shop.inc
new file mode 100644
index 0000000..11cf97b
--- /dev/null
+++ b/inc/shop.inc
@@ -0,0 +1,59 @@
+<?php
+
+require_once("messages.inc");
+require_once("account.inc");
+require_once("Item.inc");
+require_once("Inventory.inc");
+
+$shop = array(
+	"cost" => 3,
+	"items" => array(
+		new Item("cat", 6, "🐈", "Nyan!"),
+		new Item("torch", 3, "🔦", "Electric torch"),
+	),
+);
+
+function getItem($name) {
+	global $shop;
+	foreach($shop["items"] as $item) {
+		if($name == $item->name) {
+			return $item;
+		}
+	}
+	sendError("shop_missing_item");
+	return false;
+}
+
+function initShop() {
+	$_SESSION["shop"] = true;
+}
+
+function sendShop() {
+	global $shop;
+	if(!empty($_SESSION["shop"]))
+		return $shop;
+	else return false;
+}
+
+function buildShop() {
+	global $shop;
+	if(!empty($_SESSION["shop"])) {
+		sendError("shop_already_built");
+	}
+	elseif(debitAccount($shop["cost"])) {
+		initShop();
+		$_SESSION["mine"]["gold"] -= $shop["cost"];
+		echo json_encode(sendShop());
+	}
+}
+
+function buyItem() {
+	$item = getItem($_POST["item"]);
+	if($item && debitAccount($item->cost)) {
+		Inventory::addItem($item);
+		echo json_encode($item);
+	}
+}
+
+
+?>