add some enemy behavior prototypes

godot/characters/enemies/blockface/Blockface.gd

@@ -0,0 +1,27 @@
+extends KinematicBody2D
+
+
+signal player_touched
+
+
+onready var start_position = position
+var velocity = Vector2()
+export var speed = 50.0
+export var fall_speed = 75.0
+var return_to_start: bool = false
+
+
+func _physics_process(delta: float) -> void:
+	if return_to_start:
+		position = position.move_toward(start_position, speed * delta)
+	else:
+		var collision = move_and_collide(Vector2(0, (position.y + fall_speed) * delta))
+		if collision:
+			return_to_start = true
+			$AnimatedSprite.play("normal")
+			if collision.collider.name == "Player":
+				emit_signal("player_touched")
+
+	if position.y <= start_position.y:
+		return_to_start = false
+		$AnimatedSprite.play("angry")

godot/characters/enemies/blockface/Blockface.tscn

@@ -1,6 +1,7 @@
-[gd_scene load_steps=6 format=2]
+[gd_scene load_steps=7 format=2]
 
 [ext_resource path="res://assets/characters/characters.png" type="Texture" id=1]
+[ext_resource path="res://characters/enemies/blockface/Blockface.gd" type="Script" id=2]
 
 [sub_resource type="AtlasTexture" id=1]
 atlas = ExtResource( 1 )
@@ -26,9 +27,10 @@ animations = [ {
 [sub_resource type="RectangleShape2D" id=4]
 extents = Vector2( 9, 9 )
 
-[node name="Blockface" type="KinematicBody2D"]
+[node name="Blockface" type="KinematicBody2D" groups=["enemy", "rideable"]]
 collision_layer = 8
 collision_mask = 11
+script = ExtResource( 2 )
 
 [node name="AnimatedSprite" type="AnimatedSprite" parent="."]
 frames = SubResource( 3 )