spider implementation! death_blood_offset variable added to enemy.gd to facilitate

objects/enemy/enemy.gd

@@ -20,6 +20,7 @@ export var score_for_killing = 0
 export var blood = true
 
 var death_sound = Game.a_die
+var death_blood_offset = Vector2.ZERO
 
 func _on_Hitbox_area_entered(area):
 	#Kill player
@@ -29,7 +30,7 @@ func _on_Hitbox_area_entered(area):
 func die():
 	if blood:
 		var death_particles = DeathParticles.instance()
-		death_particles.global_position = global_position
+		death_particles.global_position = global_position + death_blood_offset
 		death_particles.emitting = true
 		get_parent().add_child(death_particles)
 	

objects/enemy/spider.gd

@@ -0,0 +1,34 @@
+extends "res://objects/enemy/enemy.gd"
+
+export var speed = 0.0
+export var direction = 1.0
+
+onready var line = $Line2D
+onready var hitbox = $Hitbox
+
+var floor_y = 0.0
+
+func _ready():
+	var raycast = $RayCast2D
+	# detect ceiling
+	raycast.force_raycast_update()
+	var old_y = hitbox.global_position.y
+	global_position.y = raycast.get_collision_point().y
+	hitbox.global_position.y = old_y
+	line.points[1].y = hitbox.position.y
+	# detect floor
+	raycast.cast_to = Vector2(0.0, 192.0)
+	raycast.force_raycast_update()
+	floor_y = to_local(raycast.get_collision_point()).y - 3
+	raycast.queue_free()
+
+func _physics_process(delta):
+	hitbox.position.y += direction * speed * delta
+	if hitbox.position.y < 5.0:
+		hitbox.position.y = 5.0
+		direction = 1.0
+	if hitbox.position.y > floor_y:
+		hitbox.position.y = floor_y
+		direction = -1.0
+	line.points[1].y = hitbox.position.y
+	death_blood_offset = hitbox.position

objects/enemy/spider.tscn

@@ -0,0 +1,51 @@
+[gd_scene load_steps=7 format=2]
+
+[ext_resource path="res://graphics/enemy/spider.png" type="Texture" id=1]
+[ext_resource path="res://objects/enemy/spider.gd" type="Script" id=2]
+
+[sub_resource type="AtlasTexture" id=1]
+atlas = ExtResource( 1 )
+region = Rect2( 0, 0, 15, 14 )
+
+[sub_resource type="AtlasTexture" id=2]
+atlas = ExtResource( 1 )
+region = Rect2( 15, 0, 15, 14 )
+
+[sub_resource type="SpriteFrames" id=3]
+animations = [ {
+"frames": [ SubResource( 1 ), SubResource( 2 ) ],
+"loop": true,
+"name": "default",
+"speed": 7.0
+} ]
+
+[sub_resource type="RectangleShape2D" id=4]
+extents = Vector2( 4.5, 4 )
+
+[node name="Spider" type="Node2D" groups=["enemy"]]
+script = ExtResource( 2 )
+speed = 30.0
+
+[node name="Line2D" type="Line2D" parent="."]
+position = Vector2( 4.5, 0 )
+points = PoolVector2Array( 0, 0, 0, 0 )
+width = 1.0
+default_color = Color( 1, 1, 1, 1 )
+
+[node name="RayCast2D" type="RayCast2D" parent="."]
+position = Vector2( 4.5, 4 )
+cast_to = Vector2( 0, -192 )
+
+[node name="Hitbox" type="Area2D" parent="." groups=["enemy_hitbox"]]
+position = Vector2( 5, 5 )
+
+[node name="AnimatedSprite" type="AnimatedSprite" parent="Hitbox"]
+frames = SubResource( 3 )
+frame = 1
+playing = true
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="Hitbox"]
+position = Vector2( -0.5, -1 )
+shape = SubResource( 4 )
+
+[connection signal="area_entered" from="Hitbox" to="." method="_on_Hitbox_area_entered"]