From 19f0f888078541ce865945c4f4ac045e630822ea Mon Sep 17 00:00:00 2001
From: Stefano Pigozzi <me@steffo.eu>
Date: Sat, 2 Apr 2022 22:05:02 +0200
Subject: [PATCH] :sparkles: Create basic enemy attracted to the fire

---
 src/entities/Enemy.tscn                | 18 ++++++++++++++++++
 src/entities/behaviours/AttractedTo.gd | 26 ++++++++++++++++++++++++++
 src/levels/Game.tscn                   |  6 +++++-
 3 files changed, 49 insertions(+), 1 deletion(-)
 create mode 100644 src/entities/Enemy.tscn
 create mode 100644 src/entities/behaviours/AttractedTo.gd

diff --git a/src/entities/Enemy.tscn b/src/entities/Enemy.tscn
new file mode 100644
index 0000000..5ee34a5
--- /dev/null
+++ b/src/entities/Enemy.tscn
@@ -0,0 +1,18 @@
+[gd_scene load_steps=4 format=2]
+
+[ext_resource path="res://src/mechanics/Black.png" type="Texture" id=1]
+[ext_resource path="res://src/entities/behaviours/AttractedTo.gd" type="Script" id=2]
+
+[sub_resource type="RectangleShape2D" id=1]
+extents = Vector2( 16, 16 )
+
+[node name="Enemy" type="KinematicBody2D"]
+
+[node name="AttractedTo" type="Node" parent="."]
+script = ExtResource( 2 )
+
+[node name="Sprite" type="Sprite" parent="."]
+texture = ExtResource( 1 )
+
+[node name="Shape" type="CollisionShape2D" parent="."]
+shape = SubResource( 1 )
diff --git a/src/entities/behaviours/AttractedTo.gd b/src/entities/behaviours/AttractedTo.gd
new file mode 100644
index 0000000..e2e1345
--- /dev/null
+++ b/src/entities/behaviours/AttractedTo.gd
@@ -0,0 +1,26 @@
+extends Node
+
+
+export var movement_per_second: float = 32.0
+
+
+onready var target: KinematicBody2D = get_parent()
+# TODO: Use a better algorithm
+onready var goal: StaticBody2D = get_parent().get_parent().get_node("Fire")
+
+
+signal touching_goal
+var goal_reached_triggered: bool = false
+signal goal_reached
+
+
+func _physics_process(_delta):
+	var direction: Vector2 = (goal.global_position - target.global_position).normalized()
+	var _motion: Vector2 = target.move_and_slide(direction * movement_per_second, Vector2.ZERO)
+	for slide_no in target.get_slide_count():
+		var slide = target.get_slide_collision(slide_no)
+		if slide.collider == goal:
+			emit_signal("touching_goal")
+			if not goal_reached_triggered:
+				emit_signal("goal_reached")
+				goal_reached_triggered = true
\ No newline at end of file
diff --git a/src/levels/Game.tscn b/src/levels/Game.tscn
index 4a79567..ad3c363 100644
--- a/src/levels/Game.tscn
+++ b/src/levels/Game.tscn
@@ -1,9 +1,10 @@
-[gd_scene load_steps=5 format=2]
+[gd_scene load_steps=6 format=2]
 
 [ext_resource path="res://src/mechanics/Background.tscn" type="PackedScene" id=1]
 [ext_resource path="res://src/mechanics/Darkness.tscn" type="PackedScene" id=2]
 [ext_resource path="res://src/entities/Fire.tscn" type="PackedScene" id=3]
 [ext_resource path="res://src/entities/Player.tscn" type="PackedScene" id=4]
+[ext_resource path="res://src/entities/Enemy.tscn" type="PackedScene" id=5]
 
 [node name="Game" type="Node2D"]
 
@@ -19,3 +20,6 @@ intensity = 1.0
 
 [node name="Player" parent="." instance=ExtResource( 4 )]
 position = Vector2( 500, 438 )
+
+[node name="Enemy" parent="." instance=ExtResource( 5 )]
+position = Vector2( 755, 508 )