✨ Adds checkpoint mecanism

nodes/player/player.gd

@@ -54,6 +54,10 @@ var grabbed_obstacle = null
 func _ready():
 	$fsm.set_states(STATES)
 	add_to_group("player")
+	g_game_state.restore_checkpoint.connect(on_restore_checkpoint)
+
+func _exit_tree():
+	g_game_state.restore_checkpoint.disconnect(on_restore_checkpoint)
 
 func on_enter_spawn_state():
 	$fsm.set_next_state("idle")
@@ -136,6 +140,9 @@ func climb_state(_delta):
 
 
 func after_state(delta):
+	if Input.is_action_pressed('player_action'):
+		die()
+
 	move_and_slide()
 	if is_dead():
 		return
@@ -253,6 +260,8 @@ func on_enter_die_state():
 
 
 func die_state(_delta):
-	prints("die_state", $fsm.state_duration)
 	if $fsm.state_duration > DURATION_BEFORE_LOSE_SCREEN:
 		get_tree().change_scene_to_file(LOSE_SCREEN)
+
+func on_restore_checkpoint(_level_rising):
+	global_position = g_game_state.player_position_at_checkpoint

nodes/triggers/checkpoint.gd

@@ -0,0 +1,11 @@
+extends Area2D
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	body_entered.connect(on_body_entered)
+
+func on_body_entered(body):
+	if body.is_in_group('player'):
+		g_game_state.checkpoint(body.global_position)
+		queue_free()

nodes/triggers/checkpoint.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3 uid="uid://cjuqvtp3lhsuc"]
+
+[ext_resource type="Script" path="res://nodes/triggers/checkpoint.gd" id="1_v47vq"]
+
+[node name="checkpoint" type="Area2D"]
+script = ExtResource("1_v47vq")

project.godot

@@ -18,6 +18,7 @@ config/icon="res://icon.svg"
 [autoload]
 
 g_music="*res://scripts/singletons/music.gd"
+g_game_state="*res://scripts/singletons/gamestate.gd"
 
 [display]
 

scenes/lose_screen.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=3 format=3 uid="uid://ckt2twwgcgwtt"]
+[gd_scene load_steps=4 format=3 uid="uid://ckt2twwgcgwtt"]
 
 [ext_resource type="Script" path="res://scripts/ui/change_scene_button.gd" id="1_oyu1u"]
 [ext_resource type="Script" path="res://scripts/ui/quit_button.gd" id="2_7spq8"]
+[ext_resource type="Script" path="res://scripts/ui/last_checkpoint_button.gd" id="2_vu7kg"]
 
 [node name="lose_screen" type="Control"]
 layout_mode = 3
@@ -24,16 +25,26 @@ text = "You lose"
 horizontal_alignment = 1
 vertical_alignment = 1
 
-[node name="Button" type="Button" parent="Panel"]
+[node name="main_menu" type="Button" parent="Panel"]
 layout_mode = 0
-offset_left = 800.0
+offset_left = 632.0
-offset_top = 744.0
+offset_top = 776.0
-offset_right = 1144.0
+offset_right = 1280.0
-offset_bottom = 840.0
+offset_bottom = 848.0
-text = "Play Again"
+text = "Back To Main Menu"
 script = ExtResource("1_oyu1u")
 TARGET_SCENE = "res://scenes/main_menu.tscn"
 
+[node name="last_checkpoint" type="Button" parent="Panel"]
+layout_mode = 0
+offset_left = 632.0
+offset_top = 632.0
+offset_right = 1280.0
+offset_bottom = 704.0
+text = "Restore Last Save"
+script = ExtResource("2_vu7kg")
+GAME_SCENE = "res://scenes/poc.tscn"
+
 [node name="quit" type="Button" parent="Panel"]
 offset_left = 629.0
 offset_top = 875.0

scripts/gameplay/rising_level.gd

@@ -6,14 +6,21 @@ const FORCE_CHECK_FREQUENCY = 5
 
 var duration = 0
 
+func _enter_tree():
+	g_game_state.restore_checkpoint.connect(on_restore_checkpoint)
+
 func _ready():
 	body_entered.connect(_body_entered)
 	area_entered.connect(_area_entered)
 	body_exited.connect(_body_exited)
 
+func _exit_tree():
+	g_game_state.restore_checkpoint.disconnect(on_restore_checkpoint)
+
 func _physics_process(delta):
 	$shape.position.y -= RISING_SPEED * delta
 	self.position = self.position
+	g_game_state.save_level_rising_height($shape.position.y)
 
 	duration += delta
 	if duration > FORCE_CHECK_FREQUENCY:
@@ -38,3 +45,6 @@ func process_body(body, force= false):
 
 	if body.is_in_group("npc"):
 		body.die(RISING_SPEED)
+
+func on_restore_checkpoint(level):
+	$shape.position.y = level

scripts/singletons/gamestate.gd

@@ -0,0 +1,31 @@
+extends Node2D
+class_name GGameState
+
+signal restore_checkpoint(level)
+
+var level_rising_height_now = 0
+var level_rising_height_at_death = 0
+
+var player_position_at_checkpoint = Vector2(0, 0)
+
+var must_restore_checkpoint = false
+
+func reset():
+	level_rising_height_now = 0
+	level_rising_height_at_death = 0
+
+func save_level_rising_height(now):
+	if must_restore_checkpoint:
+		restore_checkpoint_now()
+		must_restore_checkpoint = false
+	else :
+		level_rising_height_now = now
+
+func checkpoint(player_position):
+	level_rising_height_at_death = level_rising_height_now
+	player_position_at_checkpoint = player_position
+
+func restore_checkpoint_now():
+	prints('restoring with', level_rising_height_at_death)
+	level_rising_height_now = level_rising_height_at_death
+	emit_signal("restore_checkpoint", level_rising_height_at_death)

scripts/ui/change_scene_button.gd

@@ -2,7 +2,11 @@ extends Button
 class_name SceneChanger
 
 @export_file("*.tscn") var TARGET_SCENE;
+@export var reset_gamestate = false
 
 func _pressed():
 	print("Changing scene to: " + TARGET_SCENE)
 	get_tree().change_scene_to_file(TARGET_SCENE)
+
+	if reset_gamestate:
+		g_game_state.reset()

scripts/ui/last_checkpoint_button.gd

@@ -0,0 +1,7 @@
+extends Button
+
+@export_file('*.tscn') var GAME_SCENE
+
+func _pressed():
+	get_tree().change_scene_to_file(GAME_SCENE)
+	g_game_state.must_restore_checkpoint = true