add letter block

objects/hud/letter_block.gd

@@ -0,0 +1,49 @@
+tool
+extends "res://objects/enemy/enemy.gd"
+
+signal letter_chosen(letter)
+
+enum Glyph {
+	 A,  B,  C,  D,  E,  F,  G,  H,
+	 I,  J,  K,  L,  M,  N,  O,  P,
+	 Q,  R,  S,  T,  U,  V,  W,  X,
+	 Y,  Z, _0, _1, _2, _3, _4, _5,
+	_6, _7, _8, _9,
+}
+const GLYPH_STRINGS = [
+	"A", "B", "C", "D", "E", "F", "G", "H",
+	"I", "J", "K", "L", "M", "N", "O", "P",
+	"Q", "R", "S", "T", "U", "V", "W", "X",
+	"Y", "Z", "0", "1", "2", "3", "4", "5",
+	"6", "7", "8", "9",
+]
+
+export (Glyph) var glyph: int = 0 setget _set_glyph
+
+onready var sprite: Sprite = $Sprite
+onready var _seed: float = randf() * 250.0
+
+func _set_glyph(value: int) -> void:
+	glyph = value
+	get_node("Sprite").frame = value
+
+func _ready() -> void:
+	if Engine.editor_hint:
+		return
+	# connect to node in "gets_letters" group so don't have to do the shit manually
+	for node in get_tree().get_nodes_in_group("gets_letters"):
+		if node.has_method("_on_letter_chosen"):
+			connect("letter_chosen", node, "_on_letter_chosen")
+
+func _process(delta: float) -> void:
+	if Engine.editor_hint:
+		return
+	sprite.position.x = 4.0 + sin(float(Time.get_ticks_msec()) / 250.0 + _seed)
+	sprite.position.y = 5.0 + sin(float(Time.get_ticks_msec()) / 125.0 + _seed)
+
+func die() -> void:
+	emit_signal("letter_chosen", GLYPH_STRINGS[glyph])
+
+func _on_Hitbox_area_entered(area):
+	emit_signal("letter_chosen", GLYPH_STRINGS[glyph])
+	._on_Hitbox_area_entered(area)

objects/hud/letter_block.tscn

@@ -0,0 +1,25 @@
+[gd_scene load_steps=4 format=2]
+
+[ext_resource path="res://objects/hud/letter_block.gd" type="Script" id=1]
+[ext_resource path="res://graphics/hud/letter_blocks.png" type="Texture" id=2]
+
+[sub_resource type="RectangleShape2D" id=1]
+extents = Vector2( 3, 3.5 )
+
+[node name="LetterBlock" type="Node2D" groups=["enemy"]]
+script = ExtResource( 1 )
+blood = false
+
+[node name="Sprite" type="Sprite" parent="."]
+position = Vector2( 4, 5 )
+texture = ExtResource( 2 )
+hframes = 8
+vframes = 5
+
+[node name="Hitbox" type="Area2D" parent="." groups=["enemy_hitbox"]]
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="Hitbox"]
+position = Vector2( 4, 4.5 )
+shape = SubResource( 1 )
+
+[connection signal="area_entered" from="Hitbox" to="." method="_on_Hitbox_area_entered"]