Heck yeah, you punch those trees, Gary!

character/character.gd

@@ -0,0 +1,36 @@
+extends CharacterBody2D
+
+var _grid_pos: Vector2i = Vector2i.ZERO
+var _grid_tween: Tween = null
+
+var _cached_dir: Vector2i = Vector2i.ZERO #used for reversing the current input
+
+func _physics_process(delta: float) -> void:
+	#WARNING: this has the potential for getting stuck
+	if _grid_pos * 32 == Vector2i(position):
+		_check_grid_move(delta)
+
+func _check_grid_move(delta: float) -> void:
+	if Input.is_action_pressed("input_north"):
+		_set_grid_move(Vector2i.UP)
+	elif Input.is_action_pressed("input_south"):
+		_set_grid_move(Vector2i.DOWN)
+	elif Input.is_action_pressed("input_west"):
+		_set_grid_move(Vector2i.LEFT)
+	elif Input.is_action_pressed("input_east"):
+		_set_grid_move(Vector2i.RIGHT)
+
+func _set_grid_move(grid_dir: Vector2i):
+	_cached_dir = grid_dir
+	_grid_pos += grid_dir
+	_grid_tween = create_tween()
+	_grid_tween.set_ease(Tween.EASE_OUT_IN)
+	_grid_tween.set_trans(Tween.TRANS_QUAD)
+	_grid_tween.tween_property(self, "position", Vector2(_grid_pos * 32), 0.3)
+
+func repel_collision(_other: Node2D) -> void:
+	#NOTE: character's collider has a 1 pixel margin
+	if _cached_dir != Vector2i.ZERO:
+		_grid_tween.kill()
+		_set_grid_move(-_cached_dir) #go backwards
+		_cached_dir = Vector2i.ZERO #only do this once each collision