Initial files

scripts/game_manager.gd

@@ -0,0 +1,86 @@
+extends Node
+const STATE_STARTUP = 0
+const STATE_PLAYING = 1
+const STATE_GAMEOVER = 2
+const STAGE_TIME = 30
+var active_asteroids = 0
+var stage = 1
+var total_time = 0
+var slowmo_time = 5
+var score = 0
+var time_next_stage = 25
+var state = STATE_STARTUP
+func _ready():
+	set_fixed_process(true)
+	update_ui()
+	
+func game_over():
+	state = STATE_GAMEOVER
+	var restart_btn = game_manager.get_node_from_root("Node/UI/Restart")
+	restart_btn.show()
+	restart_btn.get_node("AnimationPlayer").connect("finished", self, "game_over_ts")
+	restart_btn.get_node("AnimationPlayer").play("anim_in")
+func game_over_ts():
+	OS.set_time_scale(0.03)
+	
+func reset():
+	get_tree().reload_current_scene()
+	stage = 1
+	active_asteroids = 0
+	total_time = 0
+	slowmo_time = 0
+	score = 0
+	time_next_stage = 25
+	OS.set_time_scale(1)
+	state = STATE_PLAYING
+	update_ui()
+	
+func get_node_from_root(node_name):
+	return get_tree().get_root().get_node(node_name)
+	
+func _fixed_process(delta):
+	total_time += delta
+	if not state == STATE_GAMEOVER: slowmo_update(delta)
+	stage_update(delta)
+	
+func stage_update(delta):
+	time_next_stage -= delta
+	if time_next_stage <= 0:
+		get_node_from_root("Node/WorldAudio").play("level_up")
+		stage += 1
+		update_ui()
+		time_next_stage = STAGE_TIME
+		
+func slowmo_update(delta):
+	if slowmo_time >= 0: 
+		slowmo_time -= delta / OS.get_time_scale()
+	else: set_slowmo(false)
+	if OS.get_time_scale() != 1.0: get_node_from_root("Node/UI/SlowmoBar").update_value(slowmo_time)
+
+func set_slowmo(slowmo, time=5, scale=0.5):
+	if slowmo:
+		slowmo_time = time
+		OS.set_time_scale(scale)
+		get_node_from_root("Node/UI/SlowmoBar").set_max_val(time)
+	else:
+		OS.set_time_scale(1)
+		
+func update_ui():
+	var health = get_node_from_root("Node/Base").local_health
+	get_node_from_root("Node/UI/ScoreLabel").update_text(stage, active_asteroids, health)
+	
+func get_active_asteroids():
+	return active_asteroids
+	
+func add_asteroid():
+	active_asteroids += 1
+	update_ui()
+	if active_asteroids > stage + 7:
+		game_manager.set_slowmo(true, 15, 0.2)
+	elif active_asteroids > stage + 5:
+		game_manager.set_slowmo(true, 10, 0.25)
+	elif active_asteroids > stage + 3:
+		game_manager.set_slowmo(true, 10, 0.5)
+func remove_asteroid():
+	active_asteroids -= 1
+	update_ui()