Appearance sets

scripts/battle/deployed_units/deployed_unit.gd

@@ -8,6 +8,9 @@ var current_stats: DeployedUnitStats
 var tactics: Array[CombatTactic] = []
 var state: UnitState = UnitState.ALIVE
 
+var _sprite: AnimatedSprite2D
+var _previous_position: Vector2
+
 signal unit_selected_changed(deployed: DeployedUnit, selected: bool)
 signal unit_allegiance_changed(deployed: DeployedUnit, allegiance: UnitAllegiance)
 signal unit_died(deployed: DeployedUnit)
@@ -17,6 +20,35 @@ func _ready() -> void:
 	tactics = unit.tactics.duplicate()
 	_append_builtin_tactics()
 	unit_allegiance_changed.emit(self, unit.allegiance)
+	_previous_position = position
+	_setup_appearance()
+
+func _setup_appearance() -> void:
+	_sprite = get_node_or_null("AnimatedSprite2D") as AnimatedSprite2D
+	if not _sprite:
+		return
+	var sprite_frames: SpriteFrames = unit.appearance.deployed_sprite_sheet if unit.appearance else null
+	if not sprite_frames:
+		return
+	_sprite.sprite_frames = sprite_frames
+	_sprite.play("idle")
+
+func _physics_process(_delta: float) -> void:
+	if not _sprite or not _sprite.sprite_frames:
+		return
+	var delta_pos := position - _previous_position
+	_previous_position = position
+	if delta_pos.length_squared() < 0.01:
+		if _sprite.animation != &"idle":
+			_sprite.play("idle")
+		return
+	var anim: StringName
+	if absf(delta_pos.x) >= absf(delta_pos.y):
+		anim = &"right" if delta_pos.x > 0 else &"left"
+	else:
+		anim = &"down" if delta_pos.y > 0 else &"up"
+	if _sprite.animation != anim:
+		_sprite.play(anim)
 
 func _append_builtin_tactics() -> void:
 	var attack := AttackCombatTactic.new()