Player gun, bullet and its collisiions. Refactor.

metroidvania/Scenes/Enemies/Enemy.gd

@@ -0,0 +1,9 @@
+extends KinematicBody2D
+
+export (int) var MAX_SPEED = 15
+
+var motion = Vector2.ZERO
+
+
+func _on_Hurtbox_hit(_damage):
+	queue_free()

metroidvania/Scenes/Enemies/Enemy.tscn

@@ -0,0 +1,19 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://Scenes/Enemies/Enemy.gd" type="Script" id=1]
+[ext_resource path="res://Scenes/Objects/Hurtbox.tscn" type="PackedScene" id=2]
+
+[node name="Enemy" type="KinematicBody2D"]
+collision_layer = 0
+collision_mask = 2
+script = ExtResource( 1 )
+
+[node name="Sprite" type="Sprite" parent="."]
+
+[node name="Collider" type="CollisionShape2D" parent="."]
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="."]
+
+[node name="Hurtbox" parent="." instance=ExtResource( 2 )]
+collision_mask = 8
+[connection signal="hit" from="Hurtbox" to="." method="_on_Hurtbox_hit"]

metroidvania/Scenes/Enemies/WalkingEnemy.gd

@@ -0,0 +1,32 @@
+extends "res://Scenes/Enemies/Enemy.gd"
+
+enum DIRECTION {LEFT = -1, RIGHT = 1}
+
+export (DIRECTION) var WALKING_DIRECTION = DIRECTION.RIGHT
+
+var state
+
+onready var sprite = $Sprite
+onready var floor_left = $FloorLeft
+onready var floor_right = $FloorRight
+onready var wall_right = $WallRight
+onready var wall_left = $WallLeft
+
+func _ready():
+	motion.y = 8
+	state = WALKING_DIRECTION
+	
+func _physics_process(_delta):
+	match state:
+		DIRECTION.RIGHT:
+			motion.x = MAX_SPEED
+			if not floor_right.is_colliding() or wall_right.is_colliding():
+				state = DIRECTION.LEFT
+
+		DIRECTION.LEFT:
+			motion.x = -MAX_SPEED
+			if not floor_left.is_colliding() or wall_left.is_colliding():
+				state = DIRECTION.RIGHT
+	
+	sprite.scale.x = sign(motion.x)
+	motion = move_and_slide_with_snap(motion, Vector2.DOWN * 4, Vector2.UP, true, 4, deg2rad(46))

metroidvania/Scenes/Enemies/WalkingEnemy.tscn

@@ -0,0 +1,79 @@
+[gd_scene load_steps=7 format=2]
+
+[ext_resource path="res://Scenes/Enemies/WalkingEnemy.gd" type="Script" id=1]
+[ext_resource path="res://Assets/Enemies/WalkingEnemy.png" type="Texture" id=2]
+[ext_resource path="res://Scenes/Enemies/Enemy.tscn" type="PackedScene" id=3]
+
+[sub_resource type="RectangleShape2D" id=1]
+extents = Vector2( 2, 6 )
+
+[sub_resource type="Animation" id=2]
+resource_name = "Walking"
+loop = true
+tracks/0/type = "value"
+tracks/0/path = NodePath("../WalkingEnemy/Sprite:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/keys = {
+"times": PoolRealArray( 0, 0.5 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 1,
+"values": [ 0, 1 ]
+}
+
+[sub_resource type="RectangleShape2D" id=3]
+extents = Vector2( 7, 6 )
+
+[node name="WalkingEnemy" instance=ExtResource( 3 )]
+script = ExtResource( 1 )
+MAX_SPEED = 15
+
+[node name="Sprite" parent="." index="0"]
+position = Vector2( 0, -9 )
+texture = ExtResource( 2 )
+flip_h = true
+hframes = 2
+
+[node name="Collider" parent="." index="1"]
+position = Vector2( 0, -6 )
+shape = SubResource( 1 )
+
+[node name="AnimationPlayer" parent="." index="2"]
+autoplay = "Walking"
+anims/Walking = SubResource( 2 )
+
+[node name="FloorRight" type="RayCast2D" parent="." index="3"]
+position = Vector2( 2, -1 )
+enabled = true
+cast_to = Vector2( 0, 7 )
+collision_mask = 2
+
+[node name="FloorLeft" type="RayCast2D" parent="." index="4"]
+position = Vector2( -2, -1 )
+enabled = true
+cast_to = Vector2( 0, 7 )
+collision_mask = 2
+
+[node name="WallRight" type="RayCast2D" parent="." index="5"]
+position = Vector2( 0, -8 )
+enabled = true
+cast_to = Vector2( 6, 0 )
+collision_mask = 2
+
+[node name="WallLeft" type="RayCast2D" parent="." index="6"]
+position = Vector2( 0, -8 )
+enabled = true
+cast_to = Vector2( -6, 0 )
+collision_mask = 2
+
+[node name="Hurtbox" parent="." index="7"]
+collision_layer = 8
+collision_mask = 0
+
+[node name="Collider" parent="Hurtbox" index="0"]
+position = Vector2( 0, -7 )
+shape = SubResource( 3 )
+
+[editable path="Hurtbox"]