Add Watcher

prefabs/enemies/watcher.tscn

@@ -0,0 +1,58 @@
+[gd_scene load_steps=7 format=3 uid="uid://ccg3n7sobsvdw"]
+
+[ext_resource type="Script" path="res://scripts/enemies/Watcher.cs" id="1_wfhbm"]
+[ext_resource type="SpriteFrames" uid="uid://dlf2p3eragspn" path="res://sprites/enemies/watcher.tres" id="2_757xa"]
+[ext_resource type="Texture2D" uid="uid://dlbl6d4yghvht" path="res://sprites/mask.png" id="3_nbgee"]
+[ext_resource type="PackedScene" uid="uid://cf0wpahgwygxx" path="res://prefabs/light_sense.tscn" id="4_22lca"]
+
+[sub_resource type="CircleShape2D" id="CircleShape2D_pcaas"]
+radius = 100.0
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_n43vg"]
+size = Vector2(14, 8)
+
+[node name="Watcher" type="Node2D"]
+script = ExtResource("1_wfhbm")
+
+[node name="AnimatedSprite2D" type="AnimatedSprite2D" parent="."]
+clip_children = 2
+z_index = 1
+position = Vector2(0, 1)
+sprite_frames = ExtResource("2_757xa")
+
+[node name="Sprite2D" type="Sprite2D" parent="AnimatedSprite2D"]
+modulate = Color(0, 0, 0, 1)
+position = Vector2(0, -2)
+scale = Vector2(0.05, 0.05)
+texture = ExtResource("3_nbgee")
+
+[node name="LightSense" parent="." instance=ExtResource("4_22lca")]
+monitorable = false
+
+[node name="CollisionPolygon2D" type="CollisionPolygon2D" parent="LightSense"]
+position = Vector2(0, 1)
+polygon = PackedVector2Array(-4, -5, 4, -5, 7, -3, 7, 0, 4, 2, -4, 2, -7, 0, -7, -3)
+
+[node name="Activation" type="Area2D" parent="."]
+collision_layer = 4
+collision_mask = 4
+input_pickable = false
+monitorable = false
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="Activation"]
+shape = SubResource("CircleShape2D_pcaas")
+
+[node name="PlayerCollision" type="Area2D" parent="."]
+collision_layer = 4
+collision_mask = 4
+input_pickable = false
+monitorable = false
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="PlayerCollision"]
+shape = SubResource("RectangleShape2D_n43vg")
+
+[connection signal="animation_finished" from="AnimatedSprite2D" to="." method="AnimationEnded"]
+[connection signal="area_entered" from="LightSense" to="." method="LightEntered"]
+[connection signal="body_entered" from="Activation" to="." method="PlayerActivated"]
+[connection signal="body_entered" from="PlayerCollision" to="." method="PlayerEntered"]
+[connection signal="body_exited" from="PlayerCollision" to="." method="PlayerLeft"]

prefabs/light_sense.tscn

@@ -3,3 +3,4 @@
 [node name="LightSense" type="Area2D"]
 collision_layer = 2
 collision_mask = 2
+input_pickable = false

prefabs/player.tscn

@@ -8,6 +8,8 @@ size = Vector2(15, 15)
 
 [node name="Player" type="CharacterBody2D"]
 y_sort_enabled = true
+collision_layer = 5
+collision_mask = 5
 script = ExtResource("1_1vpun")
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]

project.godot

@@ -73,6 +73,7 @@ flashlight_charge={
 2d_render/layer_3="UI"
 2d_physics/layer_1="World"
 2d_physics/layer_2="Light"
+2d_physics/layer_3="Player"
 
 [rendering]
 

scenes/main_scene.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=18 format=3 uid="uid://dhn7yt46fyac8"]
+[gd_scene load_steps=19 format=3 uid="uid://dhn7yt46fyac8"]
 
 [ext_resource type="PackedScene" uid="uid://bhulqhxesd5gc" path="res://prefabs/player.tscn" id="1_65a7v"]
 [ext_resource type="AudioStream" uid="uid://bsy2d0bl3lgg0" path="res://sounds/crank.ogg" id="1_cweq4"]
@@ -9,6 +9,7 @@
 [ext_resource type="Shader" path="res://shaders/dithering.gdshader" id="5_64d71"]
 [ext_resource type="Script" path="res://scripts/GameCamera.cs" id="6_quua3"]
 [ext_resource type="Script" path="res://scripts/PointLight2DWorkaround.cs" id="6_slohe"]
+[ext_resource type="PackedScene" uid="uid://ccg3n7sobsvdw" path="res://prefabs/enemies/watcher.tscn" id="10_fsiss"]
 
 [sub_resource type="Curve" id="Curve_o5byr"]
 _data = [Vector2(0, 0), 0.0, 0.0, 0, 0, Vector2(0.0824742, 0.273684), -10.2105, 0.0, 0, 0, Vector2(0.242268, 0.494737), -5.10526, 0.0, 0, 0, Vector2(0.396907, 0.736842), -7.6579, 0.0, 0, 0, Vector2(0.737113, 1), 0.0, 0.0, 0, 0, Vector2(1, 1), 0.0, 0.0, 0, 0]
@@ -20,7 +21,7 @@ light_mode = 2
 [sub_resource type="ShaderMaterial" id="ShaderMaterial_m680d"]
 shader = ExtResource("5_64d71")
 
-[sub_resource type="ViewportTexture" id="ViewportTexture_nebfb"]
+[sub_resource type="ViewportTexture" id="ViewportTexture_u0vqj"]
 viewport_path = NodePath("FlashlightViewport")
 
 [sub_resource type="CircleShape2D" id="CircleShape2D_prnh4"]
@@ -49,9 +50,9 @@ Camera = NodePath("../PlayerCamera")
 Circle = NodePath("../FlashlightViewport/CanvasGroup/Circle")
 PlayerCircle = NodePath("../FlashlightViewport/PlayerCircle")
 Polygon = NodePath("../FlashlightViewport/CanvasGroup/Triangle")
-CollisionCircle = NodePath("../PlayerCamera/Area2D/Circle")
-CollisionPlayerCircle = NodePath("../PlayerCamera/Area2D/PlayerCircle")
-CollisionPolygon = NodePath("../PlayerCamera/Area2D/CollisionPolygon2D")
+CollisionCircle = NodePath("../PlayerCamera/FlashlightCollision/Circle")
+CollisionPlayerCircle = NodePath("../PlayerCamera/FlashlightCollision/PlayerCircle")
+CollisionPolygon = NodePath("../PlayerCamera/FlashlightCollision/CollisionPolygon2D")
 FlashlightGroup = NodePath("../FlashlightViewport/CanvasGroup")
 BrightnessCurve = SubResource("Curve_o5byr")
 CrankSoundPlayer = NodePath("../Sounds/CrankSound")
@@ -73,6 +74,7 @@ position = Vector2(85, 71)
 texture = ExtResource("2_edqdh")
 
 [node name="FlashlightViewport" type="SubViewport" parent="."]
+disable_3d = true
 transparent_bg = true
 snap_2d_transforms_to_pixel = true
 snap_2d_vertices_to_pixel = true
@@ -102,22 +104,23 @@ CameraBounds = Vector2(30, 20)
 [node name="PointLight2D" type="PointLight2D" parent="PlayerCamera" node_paths=PackedStringArray("LightViewport")]
 blend_mode = 2
 range_item_cull_mask = 2
-texture = SubResource("ViewportTexture_nebfb")
+texture = SubResource("ViewportTexture_u0vqj")
 script = ExtResource("6_slohe")
 LightViewport = NodePath("../../FlashlightViewport")
 
-[node name="Area2D" type="Area2D" parent="PlayerCamera"]
+[node name="FlashlightCollision" type="Area2D" parent="PlayerCamera"]
 position = Vector2(-128, -96)
 collision_layer = 2
 collision_mask = 2
+monitoring = false
 
-[node name="PlayerCircle" type="CollisionShape2D" parent="PlayerCamera/Area2D"]
+[node name="PlayerCircle" type="CollisionShape2D" parent="PlayerCamera/FlashlightCollision"]
 shape = SubResource("CircleShape2D_prnh4")
 
-[node name="Circle" type="CollisionShape2D" parent="PlayerCamera/Area2D"]
+[node name="Circle" type="CollisionShape2D" parent="PlayerCamera/FlashlightCollision"]
 shape = SubResource("CircleShape2D_qcayn")
 
-[node name="CollisionPolygon2D" type="CollisionPolygon2D" parent="PlayerCamera/Area2D"]
+[node name="CollisionPolygon2D" type="CollisionPolygon2D" parent="PlayerCamera/FlashlightCollision"]
 polygon = PackedVector2Array(0, 0, 0, 0, 0, 0)
 
 [node name="CanvasLayer" type="CanvasLayer" parent="."]
@@ -146,3 +149,6 @@ y_sort_enabled = true
 material = SubResource("CanvasItemMaterial_au1d0")
 position = Vector2(-83, 43)
 texture = ExtResource("3_8o315")
+
+[node name="Watcher" parent="." instance=ExtResource("10_fsiss")]
+position = Vector2(116, -76)

scripts/enemies/Watcher.cs

@@ -0,0 +1,241 @@
+using Godot;
+using System;
+
+public partial class Watcher : Node2D
+{
+	public enum State
+	{
+		Waiting,
+		Opening,
+		Looking,
+		PreparingToTeleport,
+		Teleporting,
+		LitUp
+	}
+
+	[Export] public float EyeDotSpeed = 2f;
+	[Export] public Vector2 EyeDotDistance = new(4f, 3f);
+	[Export] public float EyeTeleportDistance = 48f;
+
+	public State CurrentState
+	{
+		get => _state;
+
+		private set
+		{
+			_state = value;
+			_timeSinceState = 0;
+			GD.Print($"watcher: new state is {_state}");
+
+			switch (_state)
+			{
+				case State.Waiting:
+					HideEye();
+					break;
+
+				case State.Opening:
+					_dotSprite.Position = _dotSpriteInitialPos;
+					ShowEye();
+					break;
+
+				case State.Looking:
+					break;
+
+				case State.PreparingToTeleport:
+					_sprite.PlayBackwards("default");
+					break;
+
+				case State.Teleporting:
+					HideEye();
+					break;
+
+				case State.LitUp:
+					_isLitUp = false;
+					
+					var newPosition = (_player.Position - Position).Normalized();
+					if (newPosition.IsZeroApprox())
+						newPosition = new Vector2(0, -1);
+					Position += newPosition * Constants.HalfScreenSize.Length();
+
+					HideEye();
+					break;
+
+				default:
+					break;
+			}
+		}
+	}
+
+	private Player _player;
+	private AnimatedSprite2D _sprite;
+	private Sprite2D _dotSprite;
+	private Vector2 _dotSpriteInitialPos;
+	private State _state;
+	private float _timeSinceState;
+	private bool _isPlayerInside;
+	private bool _isLitUp;
+
+	public override void _Ready()
+	{
+		_sprite = (AnimatedSprite2D)FindChild("AnimatedSprite2D");
+
+		_dotSprite = (Sprite2D)FindChild("Sprite2D");
+		_dotSpriteInitialPos = _dotSprite.Position;
+
+		CurrentState = State.Waiting;
+	}
+
+	public override void _PhysicsProcess(double delta)
+	{
+		_timeSinceState += (float)delta;
+
+		switch (_state)
+		{
+			case State.Waiting:
+				break;
+
+			case State.Opening:
+				break;
+
+			case State.Looking:
+			{
+				var playerRelative = _player.Position - Position;
+				var normal = playerRelative.Normalized();
+				_dotSprite.Position = _dotSprite.Position.Lerp(normal * EyeDotDistance, EyeDotSpeed * (float)delta);
+
+				if (_timeSinceState > 5f) // 5 seconds to look at the player
+					CurrentState = State.PreparingToTeleport;
+			}
+				break;
+
+			case State.PreparingToTeleport:
+				break;
+
+			case State.Teleporting:
+				if (_timeSinceState > 1f) // 1 second to teleport
+				{
+					var newPosition = _player.Position - Position;
+					if (newPosition.Length() > EyeTeleportDistance)
+						newPosition = newPosition.Normalized() * EyeTeleportDistance;
+
+					Position += newPosition;
+					CurrentState = State.Opening;
+				}
+
+				break;
+
+			case State.LitUp:
+				if (_timeSinceState > 2f) // 2 seconds of cooldown
+				{
+					CurrentState = State.Opening;
+				}
+				break;
+
+			default:
+				break;
+		}
+
+		CheckIfKilledPlayer();
+		CheckIfLitUp();
+	}
+
+	private void AnimationEnded()
+	{
+		switch (CurrentState)
+		{
+			case State.Opening:
+				CurrentState = State.Looking;
+				break;
+
+			case State.PreparingToTeleport:
+				CurrentState = State.Teleporting;
+				break;
+
+			case State.LitUp:
+				//QueueFree();
+				GD.Print("TODO: watcher: teleport");
+				break;
+
+			case State.Waiting:
+			case State.Looking:
+			case State.Teleporting:
+			default:
+				break;
+		}
+	}
+
+	private void LightEntered(Area2D area)
+	{
+		if (CurrentState is State.Waiting or State.Opening or State.Teleporting or State.LitUp)
+			return;
+
+		if (area.GetParentOrNull<GameCamera>() is null)
+			return; // Not a flashlight
+
+		_isLitUp = true;
+		GD.Print("watcher: light enter");
+	}
+
+	private void PlayerEntered(Node2D body)
+	{
+		if (body is not Player player)
+			return;
+
+		_isPlayerInside = true;
+	}
+
+	private void PlayerLeft(Node2D body)
+	{
+		if (body is not Player player)
+			return;
+
+		_isPlayerInside = false;
+	}
+
+	private void PlayerActivated(Node2D body)
+	{
+		GD.Print("watcher: player activated1");
+		if (CurrentState != State.Waiting || body is not Player player)
+			return;
+
+		// TODO: turn off the player activation field for better performance
+
+		GD.Print("watcher: player activated");
+		_player = player;
+		CurrentState = State.Opening;
+	}
+
+	void HideEye()
+	{
+		Modulate = new Color(1, 1, 1, 0);
+		_sprite.Stop();
+	}
+
+	void ShowEye()
+	{
+		Modulate = new Color(1, 1, 1, 1);
+		_sprite.Play("default");
+	}
+
+	void CheckIfKilledPlayer()
+	{
+		if (_player is null || !_isPlayerInside)
+			return;
+
+		if (CurrentState is State.LitUp or State.PreparingToTeleport or State.Teleporting or State.Waiting)
+			return;
+
+		_player.Kill(this);
+	}
+
+	void CheckIfLitUp()
+	{
+		if (!_isLitUp)
+			return;
+
+		if (CurrentState is State.Waiting or State.Opening or State.Teleporting or State.LitUp)
+			return;
+
+		CurrentState = State.LitUp;
+	}
+}

sprites/enemies/watcher.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://crckuao681ak2"
+path="res://.godot/imported/watcher.png-4a2cb80763cb0becf48095119d13abc7.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://sprites/enemies/watcher.png"
+dest_files=["res://.godot/imported/watcher.png-4a2cb80763cb0becf48095119d13abc7.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

sprites/enemies/watcher.tres

@@ -0,0 +1,95 @@
+[gd_resource type="SpriteFrames" load_steps=14 format=3 uid="uid://dlf2p3eragspn"]
+
+[ext_resource type="Texture2D" uid="uid://crckuao681ak2" path="res://sprites/enemies/watcher.png" id="1_dujpi"]
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_jjej5"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(0, 0, 16, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_p187d"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(16, 0, 16, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_raqyq"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(32, 0, 16, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_pcud7"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(48, 0, 16, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_qoohe"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(64, 0, 16, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_idtew"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(80, 0, 16, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_mdtd1"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(96, 0, 16, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_hw0o0"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(112, 0, 16, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_qw5lw"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(128, 0, 16, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_084tv"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(144, 0, 16, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_f1y8l"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(160, 0, 16, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_5r3b7"]
+atlas = ExtResource("1_dujpi")
+region = Rect2(176, 0, 16, 32)
+
+[resource]
+animations = [{
+"frames": [{
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_jjej5")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_p187d")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_raqyq")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_pcud7")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_qoohe")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_idtew")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_mdtd1")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_hw0o0")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_qw5lw")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_084tv")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_f1y8l")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_5r3b7")
+}],
+"loop": false,
+"name": &"default",
+"speed": 10.0
+}]