Fix Enemy Outline, Create Damage System

res/shaders/colorize.tres

@@ -0,0 +1,19 @@
+[gd_resource type="ShaderMaterial" load_steps=2 format=2]
+
+[sub_resource type="Shader" id=3]
+code = "shader_type canvas_item;
+
+uniform bool active = false;
+uniform vec4 color: hint_color = vec4(1, 1, 1, 1);
+
+void fragment(){
+	COLOR = texture(TEXTURE, UV);
+	if (active) {
+		COLOR = vec4(COLOR.rgb + color.rgb * color.a, COLOR.a)
+	}
+}"
+
+[resource]
+shader = SubResource( 3 )
+shader_param/active = false
+shader_param/color = Color( 1, 1, 1, 1 )

res/shaders/outline_material.tres

@@ -0,0 +1,11 @@
+[gd_resource type="ShaderMaterial" load_steps=2 format=2]
+
+[ext_resource path="res://res/shaders/outline.tres" type="Shader" id=1]
+
+[resource]
+shader = ExtResource( 1 )
+shader_param/color = Color( 1, 0.870588, 0, 1 )
+shader_param/width = 1.0
+shader_param/pattern = 0
+shader_param/inside = false
+shader_param/add_margins = true

src/models/enemies/bat/Bat.tscn

@@ -9,7 +9,7 @@ extents = Vector2( 4, 3 )
 [sub_resource type="RectangleShape2D" id=2]
 extents = Vector2( 6, 4 )
 
-[node name="Bat" type="KinematicBody2D" groups=["enemy"]]
+[node name="Bat" type="KinematicBody2D" groups=["bat", "enemy"]]
 collision_layer = 2
 collision_mask = 2
 script = ExtResource( 2 )

src/models/player/Player.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=5 format=2]
+[gd_scene load_steps=8 format=2]
 
 [ext_resource path="res://src/models/player/sprite.png" type="Texture" id=1]
 [ext_resource path="res://src/models/player/player.gd" type="Script" id=2]
+[ext_resource path="res://res/shaders/colorize.tres" type="Material" id=3]
 
 [sub_resource type="RectangleShape2D" id=1]
 extents = Vector2( 4, 5.5 )
@@ -9,10 +10,67 @@ extents = Vector2( 4, 5.5 )
 [sub_resource type="RectangleShape2D" id=2]
 extents = Vector2( 7, 11 )
 
+[sub_resource type="Animation" id=4]
+resource_name = "RESET"
+tracks/0/type = "value"
+tracks/0/path = NodePath("Sprite:material:shader_param/color")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/keys = {
+"times": PoolRealArray( 0 ),
+"transitions": PoolRealArray( 1 ),
+"update": 0,
+"values": [ Color( 1, 1, 1, 1 ) ]
+}
+tracks/1/type = "value"
+tracks/1/path = NodePath("Sprite:material:shader_param/active")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/keys = {
+"times": PoolRealArray( 0 ),
+"transitions": PoolRealArray( 1 ),
+"update": 1,
+"values": [ false ]
+}
+
+[sub_resource type="Animation" id=3]
+resource_name = "damage"
+length = 0.9
+step = 0.05
+tracks/0/type = "value"
+tracks/0/path = NodePath("Sprite:material:shader_param/active")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/keys = {
+"times": PoolRealArray( 0, 2 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 1,
+"values": [ true, false ]
+}
+tracks/1/type = "value"
+tracks/1/path = NodePath("Sprite:material:shader_param/color")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/keys = {
+"times": PoolRealArray( 0, 0.15, 0.3, 0.45, 0.6, 0.75, 0.9 ),
+"transitions": PoolRealArray( 8, 8, 8, 8, 8, 8, 8 ),
+"update": 0,
+"values": [ Color( 1, 1, 1, 0 ), Color( 1, 1, 1, 1 ), Color( 1, 1, 1, 0 ), Color( 1, 1, 1, 1 ), Color( 1, 1, 1, 0 ), Color( 1, 1, 1, 1 ), Color( 1, 1, 1, 0 ) ]
+}
+
 [node name="Player" type="KinematicBody2D" groups=["player"]]
 script = ExtResource( 2 )
 
 [node name="Sprite" type="Sprite" parent="."]
+material = ExtResource( 3 )
 texture = ExtResource( 1 )
 centered = false
 
@@ -25,3 +83,10 @@ shape = SubResource( 1 )
 [node name="CollisionShape2D" type="CollisionShape2D" parent="EnemyCollision"]
 position = Vector2( 12, 12 )
 shape = SubResource( 2 )
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="."]
+autoplay = "RESET"
+anims/RESET = SubResource( 4 )
+anims/damage = SubResource( 3 )
+
+[connection signal="area_entered" from="EnemyCollision" to="." method="area_entered"]

src/models/player/player.gd

@@ -1,17 +1,42 @@
 extends KinematicBody2D
 
-var velocity = Vector2.ZERO
+var outline_material = load("res://res/shaders/outline_material.tres")
 var speed_multiplier: float = 1.0
+var invincibility_timer = .0
+var velocity = Vector2.ZERO
+var invincible = false
+var target: EnemyClass
 var slowed = false
-var target
 var speed = 100
+
 func get_input():
 	var input_direction = Input.get_vector("left", "right", "up", "down")
 	velocity = input_direction * speed
 
-func _physics_process(_delta):
+func choose_target():
+	var least_dist = 4000
+	var enemy_dist
+	var enemies = get_tree().get_nodes_in_group("enemy")
+	for enemy in enemies:
+		enemy.material = null
+		enemy_dist = global_position.distance_to(enemy.global_position)
+		if enemy_dist < least_dist:
+			least_dist = enemy_dist
+			target = enemy
+
+func area_entered(area):
+	var parent = area.get_parent()
+	if parent.is_in_group("enemy") and not parent.is_in_group("bat") and not invincible:
+		$AnimationPlayer.play("damage")
+		Global.add_health(-1)
+		invincible = true
+		invincibility_timer = .0
+
+func _physics_process(delta):
 	get_input()
 	
+	invincibility_timer += delta
+	
 	var areas = $EnemyCollision.get_overlapping_areas()
 	slowed = false
 	for area in areas:
@@ -19,6 +44,9 @@ func _physics_process(_delta):
 			slowed = true
 			break
 	
+	if invincible and invincibility_timer >= 0.9:
+		invincible = false
+	
 	if slowed:
 		speed_multiplier = 0.5
 	else:
@@ -26,17 +54,4 @@ func _physics_process(_delta):
 	
 	velocity = move_and_slide(velocity * speed_multiplier)
 	choose_target()
-
-const SHADER = preload("res://res/shaders/outline.tres")
-
-
-func choose_target():
-	var least_dist = 4000
-	var enemy_dist
-	var enemies = get_tree().get_nodes_in_group("enemy")
-	for enemy in enemies:
-		enemy_dist = global_position.distance_to(enemy.global_position)
-		if enemy_dist < least_dist:
-			least_dist = enemy_dist
-			target = enemy
-			#enemy.set_shader_param("width", 0)
+	target.material = outline_material

src/scenes/game/Game.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=24 format=2]
+[gd_scene load_steps=20 format=2]
 
 [ext_resource path="res://src/scenes/menu/background/background.png" type="Texture" id=1]
 [ext_resource path="res://src/scenes/game/sprites/background_houses.png" type="Texture" id=2]
@@ -15,7 +15,6 @@
 [ext_resource path="res://src/models/enemies/trash_can/TrashCan.tscn" type="PackedScene" id=13]
 [ext_resource path="res://src/models/enemies/bat/Bat.tscn" type="PackedScene" id=14]
 [ext_resource path="res://src/models/enemies/ghost/Ghost.tscn" type="PackedScene" id=15]
-[ext_resource path="res://res/shaders/outline.tres" type="Shader" id=16]
 
 [sub_resource type="RectangleShape2D" id=2]
 extents = Vector2( 10, 60 )
@@ -23,30 +22,6 @@ extents = Vector2( 10, 60 )
 [sub_resource type="RectangleShape2D" id=3]
 extents = Vector2( 140, 10.125 )
 
-[sub_resource type="ShaderMaterial" id=5]
-shader = ExtResource( 16 )
-shader_param/color = Color( 1, 0.870588, 0, 1 )
-shader_param/width = 1.0
-shader_param/pattern = 0
-shader_param/inside = false
-shader_param/add_margins = true
-
-[sub_resource type="ShaderMaterial" id=6]
-shader = ExtResource( 16 )
-shader_param/color = Color( 1, 0.870588, 0, 1 )
-shader_param/width = 1.0
-shader_param/pattern = 0
-shader_param/inside = false
-shader_param/add_margins = true
-
-[sub_resource type="ShaderMaterial" id=7]
-shader = ExtResource( 16 )
-shader_param/color = Color( 1, 0.870588, 0, 1 )
-shader_param/width = 1.0
-shader_param/pattern = 0
-shader_param/inside = true
-shader_param/add_margins = true
-
 [sub_resource type="DynamicFont" id=1]
 size = 8
 font_data = ExtResource( 4 )
@@ -101,16 +76,13 @@ shape = SubResource( 3 )
 [node name="TrashCan" parent="View/Enemies" instance=ExtResource( 13 )]
 
 [node name="Bat" parent="View/Enemies" instance=ExtResource( 14 )]
-material = SubResource( 5 )
 z_index = 1
 
 [node name="Bat2" parent="View/Enemies" instance=ExtResource( 14 )]
-material = SubResource( 6 )
 position = Vector2( 142, 54 )
 z_index = 1
 
 [node name="Ghost" parent="View/Enemies" instance=ExtResource( 15 )]
-material = SubResource( 7 )
 position = Vector2( 509, 100 )
 
 [node name="Player" parent="View" instance=ExtResource( 5 )]

src/scenes/game/game.gd

@@ -1,4 +1,5 @@
 extends Node
 
 func _ready():
-	Global.add_health(1)
+	Global.health = 3
+	Global.add_health(0)

src/scenes/menu/menu.gd

@@ -1,7 +1,7 @@
 extends Node
 
 func game_start():
-	get_tree().change_scene_to(Global.GAME_SCENE)
+	Global.game_start()
 
 func game_exit():
 	get_tree().quit(0)

src/scripts/global.gd

@@ -1,12 +1,21 @@
 extends Node
 
 var GAME_SCENE = preload("res://src/scenes/game/Game.tscn")
+var MENU_SCENE = preload("res://src/scenes/menu/Menu.tscn")
 
 var playing = true
 var health = 2
 
+func game_start():
+	playing = true
+	get_tree().change_scene_to(GAME_SCENE)
+
+func return_to_menu():
+	playing = false
+	get_tree().change_scene_to(MENU_SCENE)
+
 func add_health(amount):
 	health = clamp(health + amount, 0, 3)
 	get_tree().get_root().get_node("Game/UIWrapper/UI/Health/HealthSprite").frame = health
 	if health == 0:
-		pass # TODO endgame
+		return_to_menu() # TODO endgame