GDQuest · NathanLovato · Jun 2, 2022 · Apr 3, 2022 · Apr 4, 2022 · Apr 5, 2022
diff --git a/course/lesson-10-the-game-loop/visuals/ExampleRotatingSprite.tscn b/course/lesson-10-the-game-loop/visuals/ExampleRotatingSprite.tscn
@@ -13,10 +13,12 @@ func _ready():
 func run():
 	set_process(true)
 
+
 func reset():
 	set_process(false)
 	rotation = 0
 
+
 func _process(delta : float) -> void:
 	rotate(0.05)
 "

diff --git a/course/lesson-11-time-delta/visuals/ExampleRotatingWithDelta.tscn b/course/lesson-11-time-delta/visuals/ExampleRotatingWithDelta.tscn
@@ -9,14 +9,16 @@ script/source = "extends Node2D
 
 func _ready() -> void:
 	set_process(false)
-	
+
 
 func _process(delta: float) -> void:
 	rotate(3.0 * delta)
 
+
 func reset():
 	set_process(false)
-
+	rotation = 0
+
 
 func run():
 	set_process(true)

diff --git a/course/lesson-14-multiplying/visuals/Graph.gd b/course/lesson-14-multiplying/visuals/Graph.gd
@@ -52,6 +52,11 @@ func run() -> void:
 	_line.start_draw_animation()
 
 
+func reset() -> void:
+	_line.reset()
+	_last_point = Vector2(0, 0)
+
+
 func _process(_delta: float) -> void:
 	if Engine.editor_hint:
 		return
@@ -75,7 +80,8 @@ func _draw() -> void:
 	for i in range(graph_size.y / axis_increments):
 		draw_circle(-Vector2(0, axis_increments + i * axis_increments) + draw_offset, 4, Color.white)
 
-	draw_circle(_last_point, 4, Color.white)
+	if _last_point != Vector2(0, 0):
+		draw_circle(_last_point, 4, Color.white)
 
 
 class Polygon:
@@ -135,7 +141,7 @@ class Polygon:
 		_tween.start()
 
 	func stop_animation() -> void:
-		_tween.stop_all()
+		_tween.remove_all()
 
 	func is_drawing() -> bool:
 		return _tween.is_active()

diff --git a/course/lesson-15-modulo/visuals/TrafficLights.gd b/course/lesson-15-modulo/visuals/TrafficLights.gd
@@ -1,7 +1,8 @@
 extends Node2D
 
 
-var light_index := -1
+var initial_light_index := 0
+var light_index := initial_light_index - 1
 
 onready var _tween := $Tween
 onready var _index_label := $Index
@@ -27,6 +28,13 @@ func run() -> void:
 	_index_label.text = str(light_index)
 
 
+func reset() -> void:
+	light_index = initial_light_index
+	turn_on_light(initial_light_index)
+
+	_index_label.text = str(light_index)
+
+
 func turn_on_light(light_index) -> void:
 
 	for light in _lights:

diff --git a/course/lesson-22-functions-return-values/visuals/ExampleRoundingHealth.tscn b/course/lesson-22-functions-return-values/visuals/ExampleRoundingHealth.tscn
@@ -7,14 +7,17 @@ script/source = "
 tool
 extends RunnableCodeExample
 
+
 func _ready():
-	create_slider_for(\"health\", 0.0, 100.0, 0.1)
+	_scene_instance.health_slider = create_slider_for(\"health\", 0.0, 100.0, 0.1)
 "
 
 [sub_resource type="GDScript" id=3]
 script/source = "extends PanelContainer
 
-var health := 100.0 setget set_health
+var initial_health := 100.0
+var health := initial_health setget set_health
+var health_slider: HSlider
 
 onready var label := $Label as Label
 
@@ -24,6 +27,11 @@ func set_health(new_value: float):
 	if not label:
 		yield(self, \"ready\")
 	label.text = \"Health: %s\" % round(health)
+
+
+func reset() -> void:
+	self.health = initial_health
+	health_slider.value = initial_health
 "
 
 [node name="Example" type="PanelContainer"]

diff --git a/course/lesson-25-creating-dictionaries/visuals/ExampleAddValue.tscn b/course/lesson-25-creating-dictionaries/visuals/ExampleAddValue.tscn
@@ -6,9 +6,12 @@
 [sub_resource type="GDScript" id=1]
 script/source = "extends DictInventory
 
+var initial_healing_heart_amount := 3
+
+
 func _ready() -> void:
 	inventory = {
-		\"healing heart\": 3,
+		\"healing heart\": initial_healing_heart_amount,
 		\"gems\": 5,
 		\"sword\": 1,
 	}
@@ -18,6 +21,11 @@ func _ready() -> void:
 func run():
 	add_item(\"healing heart\")
 	update_display()
+
+
+func reset():
+	inventory[\"healing heart\"] = initial_healing_heart_amount
+	update_display()
 "
 
 [node name="Panel" type="PanelContainer"]

diff --git a/course/lesson-5-your-first-function/ExampleJumpingTurtle.tscn b/course/lesson-5-your-first-function/ExampleJumpingTurtle.tscn
@@ -18,6 +18,10 @@ func run():
 	drawing_turtle.jump(-100, 50)
 	drawing_turtle.move_forward(100)
 	drawing_turtle.play_draw_animation()
+
+
+func reset():
+	drawing_turtle.reset()
 "
 
 [node name="ExampleJumpingTurtle" type="PanelContainer"]

diff --git a/course/lesson-5-your-first-function/ExampleTurtleMoveAndRotate.tscn b/course/lesson-5-your-first-function/ExampleTurtleMoveAndRotate.tscn
@@ -5,14 +5,19 @@
 [sub_resource type="GDScript" id=1]
 script/source = "extends Node2D
 
+onready var drawing_turtle = $DrawingTurtle as DrawingTurtle
+
+
 func run():
-	var drawing_turtle = $DrawingTurtle as DrawingTurtle
 	drawing_turtle.reset()
 	drawing_turtle.position.x = -100
 	drawing_turtle.move_forward(200)
 	drawing_turtle.turn_right(90)
 	drawing_turtle.play_draw_animation()
-
+
+
+func reset():
+	drawing_turtle.reset()
 "
 
 [node name="ExampleTurtleMoveAndRotate" type="Node2D"]

diff --git a/course/lesson-5-your-first-function/ExampleTurtleSquare.tscn b/course/lesson-5-your-first-function/ExampleTurtleSquare.tscn
@@ -19,6 +19,10 @@ func run():
 	_turtle.move_forward(200)
 	_turtle.turn_right(90)
 	_turtle.play_draw_animation()
+
+
+func reset():
+	_turtle.reset()
 "
 
 [node name="ExampleTurtleSquare" type="Node2D"]

diff --git a/course/lesson-6-multiple-function-parameters/visuals/DemoDrawingSquares.gd b/course/lesson-6-multiple-function-parameters/visuals/DemoDrawingSquares.gd
@@ -4,6 +4,7 @@ var size := 40.0
 
 onready var _turtle: DrawingTurtle = $DrawingTurtle
 
+
 func run():
 	_turtle.reset()
 	_turtle.position = Vector2.ZERO
@@ -20,3 +21,7 @@ func run():
 
 	var rect: Rect2 = _turtle.get_rect()
 	_turtle.position = - rect.size / 2.0
+
+
+func reset():
+	_turtle.reset()
diff --git a/course/lesson-9-adding-and-subtracting/visuals/ExampleDamage.tscn b/course/lesson-9-adding-and-subtracting/visuals/ExampleDamage.tscn
@@ -7,7 +7,8 @@
 [sub_resource type="GDScript" id=2]
 script/source = "extends Node2D
 
-var health := 75
+var initial_health := 75
+var health := initial_health
 
 onready var _animation_tree := find_node(\"AnimationTree\")
 onready var _health_bar := find_node(\"CustomHealthBar\")
@@ -22,6 +23,11 @@ func run() -> void:
 	health -= 25
 	_health_bar.set_health(health)
 	_animation_tree.travel(\"damage\")
+
+
+func reset() -> void:
+	_health_bar.set_health(initial_health)
+	health = initial_health
 "
 
 [node name="ExampleDamage" type="PanelContainer"]

diff --git a/course/lesson-9-adding-and-subtracting/visuals/ExampleHeal.tscn b/course/lesson-9-adding-and-subtracting/visuals/ExampleHeal.tscn
@@ -7,7 +7,8 @@
 [sub_resource type="GDScript" id=2]
 script/source = "extends Node2D
 
-var health := 75
+var initial_health := 75
+var health := initial_health
 
 onready var _animation_tree := find_node(\"AnimationTree\")
 onready var _health_bar := find_node(\"CustomHealthBar\")
@@ -22,6 +23,11 @@ func run() -> void:
 	health += 25
 	_health_bar.set_health(health)
 	_animation_tree.travel(\"heal\")
+
+
+func reset() -> void:
+	_health_bar.set_health(initial_health)
+	health = initial_health
 "
 
 [node name="ExampleHeal" type="PanelContainer"]

diff --git a/game_demos/DrawingTurtle.gd b/game_demos/DrawingTurtle.gd
@@ -92,6 +92,7 @@ func jump(x: float, y: float) -> void:
 func reset() -> void:
 	_command_stack.clear()
 	stop_animation()
+	_animate_jump(0)
 
 	rotation_degrees = 0.0
 	turn_degrees = 0.0
@@ -112,7 +113,7 @@ func get_polygons() -> Array:
 
 
 func stop_animation() -> void:
-	_tween.stop_all()
+	_tween.remove_all()
 	for line in _canvas.get_children():
 		line.stop()
 

diff --git a/ui/components/OutputConsole.gd b/ui/components/OutputConsole.gd
@@ -126,3 +126,7 @@ func _on_explain_requested(error_code: int, error_message: String) -> void:
 
 func _on_resized() -> void:
 	_error_popup.set_margins_preset(Control.PRESET_WIDE)
+
+
+func reset():
+	clear_messages()