feat: add snake game leader board

Author: Ark2000

addons/panku_console/modules/snake/env.gd

@@ -3,3 +3,9 @@ var _module:PankuModule
 const _HELP_execute = "Play Snake Game"
 func play() -> void:
 	_module.add_snake_window()
+
+func leader_board() -> String:
+	var content = ""
+	content += "== Learder Board ==\n"
+	content += str(_module.leader_board_arr)
+	return content

addons/panku_console/modules/snake/module.gd

@@ -1,5 +1,10 @@
 class_name PankuModuleSnakeGame extends PankuModule
 
+var leader_board_arr = []
+
+func init_module():
+	leader_board_arr = load_module_data("leader_board", [])
+
 func add_snake_window():
 	var snake_ui := preload("res://addons/panku_console/modules/snake/snake.tscn").instantiate()
 	var window:PankuLynxWindow = core.windows_manager.create_window(snake_ui)
@@ -10,3 +15,23 @@ func add_snake_window():
 	window.size = Vector2(
 		snake_ui.snake_game.MAP_SIZE * snake_ui.CELL_SIZE, 0)
 	window.size.y = window.size.x + 24
+	
+	core.get_tree().root.get_viewport().gui_release_focus()
+
+	snake_ui.snake_game.game_over.connect(
+		func():
+			var record = {
+				"timestamp": Time.get_datetime_string_from_system(),
+				"score": snake_ui.snake_game.get_snake_length()
+			}
+			leader_board_arr.append(record)
+			leader_board_arr.sort_custom(
+				func(a, b):
+					return a['score'] > b['score']
+			)
+
+			if leader_board_arr.size() > 10:
+				leader_board_arr.resize(10)
+
+			save_module_data("leader_board", leader_board_arr)
+	)

addons/panku_console/modules/snake/snake.gd

@@ -1,3 +1,5 @@
+signal game_over
+
 const MAP_SIZE = 24
 
 const DIR_REV = {
@@ -7,12 +9,6 @@ const DIR_REV = {
 	Vector2.DOWN: Vector2.UP,
 }
 
-enum MapMatrixCell {
-	EMPTY,
-	APPLE,
-	SNAKE,
-}
-
 var snake_dict:Dictionary
 var snake_arr:Array
 var apple:Vector2
@@ -60,9 +56,10 @@ func tick(input_dir:Vector2):
 	# check if collide with self
 	if snake_dict.has(new_head):
 		# game over, restart
+		game_over.emit()
 		init()
 		return
-	
+
 	# add new head
 	snake_arr.push_front(new_head)
 	snake_dict[new_head] = 0

addons/panku_console/modules/snake/snake_ui.gd

@@ -1,7 +1,7 @@
 extends Control
 
 const CELL_SIZE = 12
-const COLOR_EMPTY = Color(0.0, 0.0, 0.0, 0.5)
+const COLOR_EMPTY = Color(0.0, 0.0, 0.0, 0.0)
 const COLOR_APPLE = Color8(255, 112, 133)
 const COLOR_SNAKE = preload("./snake_gradient.tres")