Await until animation is finished

Add an option for playing the animation and waiting until it's done. The
previous behavior is now another option "play in the background".

For editing these block definition options in the Inspector, the class
name is back to OptionData.

addons/block_code/blocks/graphics/animationplayer_play.tres

@@ -1,4 +1,4 @@
-[gd_resource type="Resource" load_steps=6 format=3 uid="uid://c5e1byehtxwc0"]
+[gd_resource type="Resource" load_steps=7 format=3 uid="uid://c5e1byehtxwc0"]
 
 [ext_resource type="Script" path="res://addons/block_code/code_generation/block_definition.gd" id="1_emeuv"]
 [ext_resource type="Script" path="res://addons/block_code/code_generation/option_data.gd" id="1_xu43h"]
@@ -14,6 +14,11 @@ script = ExtResource("1_xu43h")
 selected = 0
 items = ["forward", "backwards"]
 
+[sub_resource type="Resource" id="Resource_17pec"]
+script = ExtResource("1_xu43h")
+selected = 0
+items = ["until done", "in the background"]
+
 [resource]
 script = ExtResource("1_emeuv")
 name = &"animationplayer_play"
@@ -22,15 +27,18 @@ description = "Play the animation."
 category = "Graphics | Animation"
 type = 2
 variant_type = 0
-display_template = "play {animation: STRING} {direction: NIL}"
+display_template = "play {animation: STRING} {direction: NIL} {wait_mode: NIL}"
 code_template = "if {direction} == \"forward\":
 	play({animation})
 else:
 	play_backwards({animation})
+if {wait_mode} == \"until done\":
+	await animation_finished
 "
 defaults = {
 "animation": SubResource("Resource_qpxn2"),
-"direction": SubResource("Resource_vnp2w")
+"direction": SubResource("Resource_vnp2w"),
+"wait_mode": SubResource("Resource_17pec")
 }
 signal_name = ""
 scope = ""