Made PONG! in Godot

.gitignore

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+# ---> Godot
+# Godot-specific ignores
+.import/
+export.cfg
+export_presets.cfg
+
+# Imported translations (automatically generated from CSV files)
+*.translation
+
+# Mono-specific ignores
+.mono/
+data_*/
+
+# Builds
+.exe
+.x86_64

Ball.gd

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+extends KinematicBody2D
+
+export var inital_speed : float = 400.0
+export var speed_increase : float = 40.0
+
+var speed : float = inital_speed
+
+
+var velocity : Vector2 = Vector2.RIGHT
+
+
+
+func _draw():
+	draw_circle(Vector2(0, 0), 20, Color("#c4c4c4"))
+
+
+func _physics_process(delta):
+	velocity = velocity.normalized() * speed
+	
+	var collision = move_and_collide(velocity * delta)
+	if collision:
+		velocity = velocity.bounce(collision.normal)
+		speed += speed_increase
+		
+		if collision.collider.is_in_group("Paddle"):
+			velocity.x += velocity.x/abs(velocity.x) * speed_increase
+			
+			collision_mask = 2
+			$DisableCollision.start()
+
+
+func reset_speed():
+	speed = inital_speed
+
+
+func _on_DisableCollision_timeout():
+	collision_mask = 3

Ball.tscn

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+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://Ball.gd" type="Script" id=1]
+
+[sub_resource type="CircleShape2D" id=1]
+radius = 20.0
+
+[node name="Ball" type="KinematicBody2D"]
+collision_layer = 4
+collision_mask = 3
+moving_platform_apply_velocity_on_leave = 2
+script = ExtResource( 1 )
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource( 1 )
+
+[node name="DisableCollision" type="Timer" parent="."]
+process_mode = 0
+wait_time = 0.2
+
+[connection signal="timeout" from="DisableCollision" to="." method="_on_DisableCollision_timeout"]

Main.gd

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+extends Node2D
+
+const ball := preload("res://Ball.tscn")
+
+onready var ball_position : Vector2 = $"%Ball".position
+
+
+func reset_ball():
+	yield(get_tree().create_timer(.5), "timeout")
+	
+	$"%Ball".reset_speed()
+	$"%Ball".position = ball_position
+

Main.tscn

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+[gd_scene load_steps=10 format=2]
+
+[ext_resource path="res://Paddle.tscn" type="PackedScene" id=1]
+[ext_resource path="res://Ball.tscn" type="PackedScene" id=2]
+[ext_resource path="res://ExpressionPro.ttf" type="DynamicFontData" id=3]
+[ext_resource path="res://Score.gd" type="Script" id=4]
+[ext_resource path="res://Main.gd" type="Script" id=5]
+
+[sub_resource type="DynamicFont" id=2]
+size = 480
+font_data = ExtResource( 3 )
+
+[sub_resource type="DynamicFont" id=3]
+size = 200
+font_data = ExtResource( 3 )
+
+[sub_resource type="RectangleShape2D" id=1]
+extents = Vector2( 700, 10 )
+
+[sub_resource type="RectangleShape2D" id=4]
+extents = Vector2( 10, 540 )
+
+[node name="Main" type="Node2D"]
+script = ExtResource( 5 )
+
+[node name="UI" type="CanvasLayer" parent="."]
+layer = -1
+
+[node name="Score" type="Label" parent="UI"]
+anchor_top = 1.0
+anchor_right = 1.0
+anchor_bottom = 1.0
+margin_top = -420.0
+custom_colors/font_color = Color( 0.356863, 0.356863, 0.356863, 1 )
+custom_fonts/font = SubResource( 2 )
+text = "2  2"
+align = 1
+script = ExtResource( 4 )
+
+[node name="Title" type="Label" parent="UI"]
+anchor_right = 1.0
+margin_bottom = 176.0
+custom_colors/font_color = Color( 0.356863, 0.356863, 0.356863, 1 )
+custom_fonts/font = SubResource( 3 )
+text = "PONG!"
+align = 1
+
+[node name="PlayerPaddle" parent="." instance=ExtResource( 1 )]
+position = Vector2( 60, 142 )
+scale = Vector2( -15, 100 )
+is_player = true
+acceleration = 25.0
+friction = 15.0
+speed = 1000.0
+
+[node name="OppPaddle" parent="." instance=ExtResource( 1 )]
+position = Vector2( 1220, 213 )
+speed = 1000.0
+
+[node name="Ball" parent="." instance=ExtResource( 2 )]
+unique_name_in_owner = true
+position = Vector2( 619, 311 )
+
+[node name="Walls" type="Node" parent="."]
+
+[node name="Wall1" type="StaticBody2D" parent="Walls"]
+position = Vector2( 640, 0 )
+collision_layer = 2
+collision_mask = 0
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="Walls/Wall1"]
+shape = SubResource( 1 )
+
+[node name="Wall2" type="StaticBody2D" parent="Walls"]
+position = Vector2( 640, 720 )
+collision_layer = 2
+collision_mask = 0
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="Walls/Wall2"]
+shape = SubResource( 1 )
+
+[node name="PlayerGoal" type="Area2D" parent="."]
+position = Vector2( -30, 360 )
+collision_layer = 0
+collision_mask = 4
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="PlayerGoal"]
+shape = SubResource( 4 )
+
+[node name="OppGoal" type="Area2D" parent="."]
+position = Vector2( 1310, 360 )
+collision_layer = 0
+collision_mask = 4
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="OppGoal"]
+shape = SubResource( 4 )
+
+[connection signal="goal_scored" from="UI/Score" to="." method="reset_ball"]
+[connection signal="body_entered" from="PlayerGoal" to="UI/Score" method="increase_opp_score"]
+[connection signal="body_entered" from="OppGoal" to="UI/Score" method="increase_player_score"]

Paddle.gd

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+extends KinematicBody2D
+
+export var is_player : bool = false
+export var acceleration : float = 50.0
+export var friction : float = 55.0
+export var speed : float = 500.0
+
+var velocity : Vector2 = Vector2.ZERO
+
+onready var inital_x = position.x
+
+
+func _physics_process(_delta):
+
+	var direction := Vector2.ZERO
+
+	if is_player:
+		direction.y = Input.get_action_strength("ui_down") - Input.get_action_strength("ui_up")
+	else:
+		if get_node_or_null("%Ball"):
+			direction.y = 1 if $"%Ball".position.y >= self.position.y else -1
+		else:
+			direction.y = 0
+	
+	velocity += acceleration * direction
+	if direction.y == 0:
+		velocity -= velocity.normalized() * friction
+		if abs(velocity.length()) <= friction:
+			velocity = Vector2.ZERO
+	
+	velocity = velocity.limit_length(speed)
+	
+	velocity = move_and_slide(velocity)
+	
+	position.x = inital_x

Paddle.tscn

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+[gd_scene load_steps=2 format=2]
+
+[ext_resource path="res://Paddle.gd" type="Script" id=1]
+
+[node name="Paddle" type="KinematicBody2D" groups=["Paddle"]]
+scale = Vector2( 15, 100 )
+collision_mask = 0
+script = ExtResource( 1 )
+
+[node name="CollisionPolygon2D" type="CollisionPolygon2D" parent="."]
+polygon = PoolVector2Array( 1, 1, 1, -1, 0.333333, -1, -0.667, -0.75, -1.5, -0.25, -1.5, 0.25, -0.667, 0.75, 0.333333, 1 )
+
+[node name="Polygon2D2" type="Polygon2D" parent="."]
+color = Color( 0.768627, 0.768627, 0.768627, 1 )
+polygon = PoolVector2Array( 1, 1, 1, -1, -1.5, -1, -1.5, 1 )

Score.gd

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+extends Label
+
+signal goal_scored
+
+var player_score : int = 0
+var opp_score : int = 0
+
+func _ready():
+	update_label()
+
+func update_label():
+	self.text = str(player_score) + "  " + str(opp_score)
+
+func increase_player_score(_body = null):
+	player_score += 1
+	update_label()
+	emit_signal("goal_scored")
+
+func increase_opp_score(_body = null):
+	opp_score += 1
+	update_label()
+	emit_signal("goal_scored")

default_env.tres

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+[gd_resource type="Environment" load_steps=2 format=2]
+
+[sub_resource type="ProceduralSky" id=1]
+
+[resource]
+background_mode = 2
+background_sky = SubResource( 1 )

icon.png.import

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+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://icon.png"
+dest_files=[ "res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+process/normal_map_invert_y=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0

project.godot

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+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=4
+
+[application]
+
+config/name="PONG!"
+run/main_scene="res://Main.tscn"
+config/icon="res://icon.png"
+
+[display]
+
+window/size/width=1280
+window/size/height=720
+window/stretch/mode="2d"
+window/stretch/aspect="keep_width"
+
+[gui]
+
+common/drop_mouse_on_gui_input_disabled=true
+
+[input]
+
+ui_left={
+"deadzone": 0.5,
+"events": [  ]
+}
+ui_right={
+"deadzone": 0.5,
+"events": [  ]
+}
+ui_up={
+"deadzone": 0.5,
+"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":16777232,"physical_scancode":0,"unicode":0,"echo":false,"script":null)
+, Object(InputEventJoypadButton,"resource_local_to_scene":false,"resource_name":"","device":0,"button_index":12,"pressure":0.0,"pressed":false,"script":null)
+, Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":16777231,"physical_scancode":0,"unicode":0,"echo":false,"script":null)
+, Object(InputEventJoypadButton,"resource_local_to_scene":false,"resource_name":"","device":0,"button_index":14,"pressure":0.0,"pressed":false,"script":null)
+ ]
+}
+ui_down={
+"deadzone": 0.5,
+"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":16777234,"physical_scancode":0,"unicode":0,"echo":false,"script":null)
+, Object(InputEventJoypadButton,"resource_local_to_scene":false,"resource_name":"","device":0,"button_index":13,"pressure":0.0,"pressed":false,"script":null)
+, Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":16777233,"physical_scancode":0,"unicode":0,"echo":false,"script":null)
+, Object(InputEventJoypadButton,"resource_local_to_scene":false,"resource_name":"","device":0,"button_index":15,"pressure":0.0,"pressed":false,"script":null)
+ ]
+}
+
+[layer_names]
+
+2d_physics/layer_1="Paddle"
+2d_physics/layer_2="Wall"
+2d_physics/layer_3="Ball"
+
+[physics]
+
+common/enable_pause_aware_picking=true
+
+[rendering]
+
+environment/default_clear_color=Color( 0.168627, 0.168627, 0.168627, 1 )
+environment/default_environment="res://default_env.tres"