Game juicing demo added (#22)

* Game juicing demo added

* Removed unnecessary sprites, added missing effects

* Fixed some effects not working after restart

02-06-game-juice/FX/ActiveJuices.gd

@@ -0,0 +1,13 @@
+extends Node
+class_name ActiveJuices
+
+const HEALTH_MODIFIER : = 0.25
+
+var sound : = false
+var tweening : = false
+var particles : = false
+var visual_fx : = false
+var rapid_fire : = false
+var weak_enemies : = false
+var bullet_spread : = false
+var bigger_bullets : = false

02-06-game-juice/FX/Cartridge.tscn

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+[gd_scene load_steps=2 format=2]
+
+[ext_resource path="res://assets/sprites/bulletBlue1.png" type="Texture" id=1]
+
+[node name="Cartridge" type="Node2D"]
+editor/display_folded = true
+
+[node name="Sprite" type="Sprite" parent="."]
+texture = ExtResource( 1 )
+

02-06-game-juice/FX/CartridgeExpeller.gd

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+extends Node2D
+
+onready var tween : Tween = $Tween
+
+export var cartridge : PackedScene
+export var min_distance : = 25.0
+export var max_distance : = 50.0
+
+var enabled : = false
+
+
+func _ready() -> void:
+	enabled = ActiveJuices.visual_fx
+	randomize()
+
+
+func expell() -> void:
+	if not enabled:
+		return
+	var cartridge_position = global_position + Vector2(randf(), randf()).normalized() * rand_range(min_distance, max_distance)
+	var new_cartridge : = cartridge.instance()
+	new_cartridge.global_position = global_position
+	new_cartridge.rotation_degrees = randi() % 360
+	new_cartridge.set_as_toplevel(true)
+	add_child(new_cartridge)
+	tween.interpolate_property(new_cartridge, 
+		"global_position", 
+		new_cartridge.global_position, 
+		cartridge_position, 
+		0.3, 
+		Tween.TRANS_CUBIC, 
+		Tween.EASE_OUT)
+	tween.start()
+
+
+func _on_Barrel_shot() -> void:
+	expell()

02-06-game-juice/FX/Explosion.gd

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+extends Node2D
+
+onready var audio_player : AudioStreamPlayer = $AudioStreamPlayer
+
+
+func _ready() -> void:
+	$AnimatedSprite.play("explosion")
+	if ActiveJuices.sound:
+		audio_player.play()
+
+
+func _on_AnimatedSprite_animation_finished() -> void:
+	queue_free()

02-06-game-juice/FX/Explosion.tscn

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+[gd_scene load_steps=9 format=2]
+
+[ext_resource path="res://FX/Explosion.gd" type="Script" id=1]
+[ext_resource path="res://assets/sprites/explosion1.png" type="Texture" id=2]
+[ext_resource path="res://assets/sprites/explosion2.png" type="Texture" id=3]
+[ext_resource path="res://assets/sprites/explosion3.png" type="Texture" id=4]
+[ext_resource path="res://assets/sprites/explosion4.png" type="Texture" id=5]
+[ext_resource path="res://assets/sprites/explosion5.png" type="Texture" id=6]
+[ext_resource path="res://assets/audio/explosion.wav" type="AudioStream" id=7]
+
+[sub_resource type="SpriteFrames" id=1]
+
+animations = [ {
+"frames": [ ExtResource( 2 ), ExtResource( 3 ), ExtResource( 4 ), ExtResource( 5 ), ExtResource( 6 ) ],
+"loop": false,
+"name": "explosion",
+"speed": 10.0
+} ]
+
+[node name="Explosion" type="Node2D" groups=[
+"FX",
+]]
+z_index = 5
+script = ExtResource( 1 )
+
+[node name="AnimatedSprite" type="AnimatedSprite" parent="."]
+frames = SubResource( 1 )
+animation = "explosion"
+
+[node name="AudioStreamPlayer" type="AudioStreamPlayer" parent="."]
+stream = ExtResource( 7 )
+
+[connection signal="animation_finished" from="AnimatedSprite" to="." method="_on_AnimatedSprite_animation_finished"]

02-06-game-juice/FX/FrameFreezer.gd

@@ -0,0 +1,15 @@
+extends Node
+
+export var delay_mseconds : = 15
+
+var enabled : = false
+
+func _ready() -> void:
+	for frame_freezer in get_tree().get_nodes_in_group("frame_freezer"):
+			frame_freezer.connect("frame_freeze_requested", self, "_on_frame_freeze_requested")
+
+
+func _on_frame_freeze_requested() -> void:
+	if not enabled:
+		return
+	OS.delay_msec(delay_mseconds)

02-06-game-juice/Game.gd

@@ -0,0 +1,9 @@
+extends Node
+
+export var level : PackedScene
+
+
+func _on_JuiceControls_game_restarted() -> void:
+	$Level.queue_free()
+	yield(get_tree(), "idle_frame")
+	add_child(level.instance())

02-06-game-juice/Game.tscn

@@ -0,0 +1,22 @@
+[gd_scene load_steps=5 format=2]
+
+[ext_resource path="res://Game.gd" type="Script" id=1]
+[ext_resource path="res://levels/Level.tscn" type="PackedScene" id=2]
+[ext_resource path="res://interface/JuiceControls.tscn" type="PackedScene" id=3]
+[ext_resource path="res://FX/FrameFreezer.gd" type="Script" id=4]
+
+[node name="Game" type="Node"]
+script = ExtResource( 1 )
+level = ExtResource( 2 )
+
+[node name="Level" parent="." instance=ExtResource( 2 )]
+max_spawn_time = 8.0
+
+[node name="JuiceControls" parent="." instance=ExtResource( 3 )]
+
+[node name="FrameFreezer" type="Node" parent="." groups=[
+"freezer",
+]]
+script = ExtResource( 4 )
+
+[connection signal="game_restarted" from="JuiceControls" to="." method="_on_JuiceControls_game_restarted"]

02-06-game-juice/actors/enemies/Enemy.gd

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+extends KinematicBody2D
+class_name Enemy
+
+onready var animation_player : AnimationPlayer = $AnimationPlayer
+onready var audio_player : AudioStreamPlayer = $AudioStreamPlayer
+
+export var health : = 100.0
+export var move_speed : = 75
+export var explosion : PackedScene
+
+var path : = []
+var player : Node2D
+
+
+func _ready() -> void:
+	health *= ActiveJuices.HEALTH_MODIFIER if ActiveJuices.weak_enemies else 1
+
+
+func _physics_process(delta: float) -> void:
+	path = get_parent().get_simple_path(global_position, player.global_position)
+	var direction = (path[1] - global_position).normalized()
+	look_at(path[1])
+	move_and_slide(direction * move_speed)
+
+
+func initialize(_player: Node2D) -> void:
+	player = _player
+
+
+func damage(value: int) -> void:
+	health = max(0, health - value)
+	if ActiveJuices.visual_fx:
+		animation_player.play("damaged")
+	if ActiveJuices.sound:
+		audio_player.play()
+	if health == 0:
+		if ActiveJuices.visual_fx:
+			var new_explosion : = explosion.instance()
+			new_explosion.global_position = global_position
+			get_tree().get_root().add_child(new_explosion)
+		queue_free()

02-06-game-juice/actors/enemies/Enemy.tscn

@@ -0,0 +1,57 @@
+[gd_scene load_steps=8 format=2]
+
+[ext_resource path="res://actors/enemies/Enemy.gd" type="Script" id=1]
+[ext_resource path="res://FX/Explosion.tscn" type="PackedScene" id=2]
+[ext_resource path="res://assets/sprites/tankBody_red_outline.png" type="Texture" id=3]
+[ext_resource path="res://assets/sprites/tankDark_barrel1_outline.png" type="Texture" id=4]
+[ext_resource path="res://assets/audio/hit.wav" type="AudioStream" id=5]
+
+[sub_resource type="RectangleShape2D" id=1]
+
+extents = Vector2( 38.7491, 37.3242 )
+
+[sub_resource type="Animation" id=2]
+
+resource_name = "damaged"
+length = 0.2
+tracks/0/type = "value"
+tracks/0/path = NodePath(".:modulate")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/keys = {
+"times": PoolRealArray( 0, 0.1, 0.2 ),
+"transitions": PoolRealArray( 1, 0.241484, 1 ),
+"update": 0,
+"values": [ Color( 1, 1, 1, 1 ), Color( 10, 10, 10, 1 ), Color( 1, 1, 1, 1 ) ]
+}
+
+[node name="Enemy" type="KinematicBody2D" groups=[
+"enemies",
+]]
+z_index = 4
+script = ExtResource( 1 )
+explosion = ExtResource( 2 )
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource( 1 )
+
+[node name="Sprite" type="Sprite" parent="."]
+rotation = -1.5708
+texture = ExtResource( 3 )
+
+[node name="Barrel" type="Position2D" parent="."]
+editor/display_folded = true
+rotation = -1.5708
+
+[node name="Sprite" type="Sprite" parent="Barrel"]
+position = Vector2( 0, 11 )
+texture = ExtResource( 4 )
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="."]
+anims/damaged = SubResource( 2 )
+
+[node name="AudioStreamPlayer" type="AudioStreamPlayer" parent="."]
+stream = ExtResource( 5 )
+

02-06-game-juice/actors/tanks/Barrel.gd

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+extends Position2D
+
+signal shot
+signal camera_shake_requested
+signal frame_freeze_requested
+
+onready var timer : Timer = $Timer
+onready var spawn_position : Position2D = $SpawnPosition
+onready var audio_player : AudioStreamPlayer = $AudioStreamPlayer
+onready var animation_player : AnimationPlayer = $AnimationPlayer
+
+export var fire_rate : = 5 setget set_fire_rate
+export var bullet : PackedScene
+
+
+func _process(delta: float) -> void:
+	look_at(get_global_mouse_position())
+	if Input.is_action_pressed("shoot") and timer.is_stopped():
+		shoot()
+
+
+func _on_Bullet_destroyed(enemy_hit: bool) -> void:
+	if enemy_hit:
+		emit_signal("camera_shake_requested")
+		emit_signal("frame_freeze_requested")
+
+
+func shoot() -> void:
+	timer.start()
+	emit_signal("shot")
+	if ActiveJuices.sound:
+		audio_player.play()
+	if ActiveJuices.visual_fx:
+		animation_player.play("shoot")
+	var new_bullet = bullet.instance()
+	new_bullet.initialize((get_global_mouse_position() - global_position).normalized())
+	add_child(new_bullet)
+	new_bullet.global_position = spawn_position.global_position
+	new_bullet.look_at(get_global_mouse_position())
+	new_bullet.connect("destroyed", self, "_on_Bullet_destroyed")
+
+func set_fire_rate(value: int) -> void:
+	fire_rate = value
+	timer.wait_time = 1.0 / fire_rate

02-06-game-juice/actors/tanks/Tank.gd

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+extends KinematicBody2D
+
+export var move_speed : = 150.0
+export var turn_speed : = 75.0
+
+func _physics_process(delta: float) -> void:
+	var motion : = Vector2()
+	motion.y = Input.get_action_strength("move_backward") - Input.get_action_strength("move_forward")
+	motion.x = Input.get_action_strength("rotate_right") - Input.get_action_strength("rotate_left")
+
+	rotation_degrees += motion.x * turn_speed * delta
+
+	move_and_slide(Vector2.UP.rotated(rotation) * motion.y * move_speed)
+