[godot] Fetch animation player on the fly, improve animation player example.

spine-godot/example/assets/spineboy/spinebody-data-res.tres

@@ -16,4 +16,5 @@ mix = 0.2
 [resource]
 atlas_res = ExtResource( 1 )
 skeleton_file_res = ExtResource( 2 )
+default_mix = 0.2
 animation_mixes = [ SubResource( 1 ), SubResource( 2 ) ]

spine-godot/example/examples/08-animation-player/animation-player.gd

@@ -1,10 +1,33 @@
 extends Node2D
 
 onready var player = $AnimationPlayer
+onready var spineboy = $Spineboy
+
+var speed = 400;
+var velocity_x = 0;
 
 func _ready():
+	player.play("cutscene")
 	pass
 
-func _process(_delta):
+func _process(delta):
-	if Input.is_action_just_pressed("ui_accept"):
+	if (!player.is_playing()):
-		player.play("walk-run-die")
+		if Input.is_action_just_released("ui_left"):
+			spineboy.get_animation_state().set_animation("idle", true, 0)
+			velocity_x = 0
+
+		if Input.is_action_just_released("ui_right"):
+			spineboy.get_animation_state().set_animation("idle", true, 0)
+			velocity_x = 0
+
+		if (Input.is_action_just_pressed("ui_right")):
+			spineboy.get_animation_state().set_animation("run", true, 0)
+			spineboy.get_skeleton().set_scale_x(1)
+			velocity_x = 1
+
+		if Input.is_action_just_pressed("ui_left"):
+			spineboy.get_animation_state().set_animation("run", true, 0)
+			spineboy.get_skeleton().set_scale_x(-1)
+			velocity_x = -1
+
+		spineboy.position.x += velocity_x * speed * delta

spine-godot/example/examples/08-animation-player/animation-player.tscn

@@ -1646,7 +1646,7 @@ tracks/1/keys = {
 "times": PoolRealArray( 0 ),
 "transitions": PoolRealArray( 1 ),
 "update": 0,
-"values": [ Vector2( 1284, 540 ) ]
+"values": [ Vector2( 1284, 520 ) ]
 }
 tracks/2/type = "value"
 tracks/2/path = NodePath("Spineboy/SpineAnimationTrack:mix_duration")
@@ -1697,49 +1697,9 @@ tracks/5/keys = {
 "values": [ 1.0 ]
 }
 
-[sub_resource type="Animation" id=83]
-resource_name = "reverse-timescale"
-length = 2.0
-loop = true
-tracks/0/type = "value"
-tracks/0/path = NodePath("Spineboy/SpineAnimationTrack:reverse")
-tracks/0/interp = 1
-tracks/0/loop_wrap = true
-tracks/0/imported = false
-tracks/0/enabled = true
-tracks/0/keys = {
-"times": PoolRealArray( 0 ),
-"transitions": PoolRealArray( 1 ),
-"update": 1,
-"values": [ true ]
-}
-tracks/1/type = "animation"
-tracks/1/path = NodePath("Spineboy/SpineAnimationTrack/Spineboy Track 0")
-tracks/1/interp = 1
-tracks/1/loop_wrap = true
-tracks/1/imported = false
-tracks/1/enabled = true
-tracks/1/keys = {
-"clips": PoolStringArray( "walk_looped" ),
-"times": PoolRealArray( 0 )
-}
-tracks/2/type = "value"
-tracks/2/path = NodePath("Spineboy/SpineAnimationTrack:time_scale")
-tracks/2/interp = 1
-tracks/2/loop_wrap = true
-tracks/2/imported = false
-tracks/2/enabled = true
-tracks/2/keys = {
-"times": PoolRealArray( 0 ),
-"transitions": PoolRealArray( 1 ),
-"update": 0,
-"values": [ 0.5 ]
-}
-
 [sub_resource type="Animation" id=1]
-resource_name = "walk-run-die"
+resource_name = "cutscene"
 length = 10.0
-loop = true
 step = 0.02
 tracks/0/type = "value"
 tracks/0/path = NodePath("Spineboy:position")
@@ -1760,8 +1720,8 @@ tracks/1/loop_wrap = true
 tracks/1/imported = false
 tracks/1/enabled = true
 tracks/1/keys = {
-"clips": PoolStringArray( "walk_looped", "idle", "death" ),
+"clips": PoolStringArray( "walk_looped", "idle", "death", "idle" ),
-"times": PoolRealArray( 0, 4, 4.34 )
+"times": PoolRealArray( 0, 4, 4.34, 8.86 )
 }
 tracks/2/type = "value"
 tracks/2/path = NodePath("Spineboy/SpineAnimationTrack2:mix_duration")
@@ -1795,7 +1755,7 @@ tracks/4/keys = {
 "times": PoolRealArray( 0, 2.02, 3.7, 10 ),
 "transitions": PoolRealArray( 1, 1, 1, 1 ),
 "update": 0,
-"values": [ Vector2( 1284, 540 ), Vector2( 1284, 540 ), Vector2( 800, 540 ), Vector2( 800, 540 ) ]
+"values": [ Vector2( 1284, 520 ), Vector2( 1284, 520 ), Vector2( 750, 520 ), Vector2( 750, 520 ) ]
 }
 tracks/5/type = "animation"
 tracks/5/path = NodePath("Raptor/SpineAnimationTrack/Raptor Track 0")
@@ -1819,6 +1779,69 @@ tracks/6/keys = {
 "update": 0,
 "values": [ 0.2 ]
 }
+tracks/7/type = "value"
+tracks/7/path = NodePath("Raptor/SpineAnimationTrack:mix_duration")
+tracks/7/interp = 1
+tracks/7/loop_wrap = true
+tracks/7/imported = false
+tracks/7/enabled = true
+tracks/7/keys = {
+"times": PoolRealArray( 0 ),
+"transitions": PoolRealArray( 1 ),
+"update": 0,
+"values": [ 0.2 ]
+}
+
+[sub_resource type="Animation" id=83]
+resource_name = "slow-moonwalk"
+length = 5.0
+loop = true
+tracks/0/type = "value"
+tracks/0/path = NodePath("Spineboy:position")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/keys = {
+"times": PoolRealArray( 0, 5 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 0,
+"values": [ Vector2( 905, 565 ), Vector2( 70, 565 ) ]
+}
+tracks/1/type = "animation"
+tracks/1/path = NodePath("Spineboy/SpineAnimationTrack/Spineboy Track 0")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/keys = {
+"clips": PoolStringArray( "walk_looped" ),
+"times": PoolRealArray( 0 )
+}
+tracks/2/type = "value"
+tracks/2/path = NodePath("Spineboy/SpineAnimationTrack:reverse")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/keys = {
+"times": PoolRealArray( 0 ),
+"transitions": PoolRealArray( 1 ),
+"update": 1,
+"values": [ true ]
+}
+tracks/3/type = "value"
+tracks/3/path = NodePath("Spineboy/SpineAnimationTrack:time_scale")
+tracks/3/interp = 1
+tracks/3/loop_wrap = true
+tracks/3/imported = false
+tracks/3/enabled = true
+tracks/3/keys = {
+"times": PoolRealArray( 0 ),
+"transitions": PoolRealArray( 1 ),
+"update": 0,
+"values": [ 0.5 ]
+}
 
 [node name="Node2D" type="Node2D"]
 script = ExtResource( 2 )
@@ -1890,7 +1913,7 @@ anims/walk = SubResource( 128 )
 anims/walk_looped = SubResource( 129 )
 
 [node name="Raptor" type="SpineSprite" parent="."]
-position = Vector2( 1284, 540 )
+position = Vector2( 1284, 520 )
 scale = Vector2( -0.328761, 0.328761 )
 skeleton_data_res = ExtResource( 3 )
 
@@ -1913,5 +1936,5 @@ anims/walk_looped = SubResource( 140 )
 
 [node name="AnimationPlayer" type="AnimationPlayer" parent="."]
 anims/RESET = SubResource( 25 )
-anims/reverse-timescale = SubResource( 83 )
+anims/cutscene = SubResource( 1 )
-anims/walk-run-die = SubResource( 1 )
+anims/slow-moonwalk = SubResource( 83 )

spine-godot/spine_godot/SpineAnimationTrack.cpp

@@ -67,8 +67,7 @@ SpineAnimationTrack::SpineAnimationTrack():
 	draw_order_threshold(0),
 	mix_blend(SpineConstant::MixBlend_Replace),
 	debug(false),
-	sprite(nullptr),
+	sprite(nullptr) {
-	animation_player(nullptr) {
 }
 
 void SpineAnimationTrack::_notification(int what) {
@@ -85,8 +84,10 @@ void SpineAnimationTrack::_notification(int what) {
 			break;
 	}
 	case NOTIFICATION_UNPARENTED: {
-			if (sprite)
+			if (sprite) {
 				sprite->disconnect("before_animation_state_update", this, "update_animation_state");
+				sprite = nullptr;
+			}
 			break;
 	}
 	default:
@@ -94,9 +95,22 @@ void SpineAnimationTrack::_notification(int what) {
 	}
 }
 
+AnimationPlayer* SpineAnimationTrack::find_animation_player() {
+	AnimationPlayer *animation_player = nullptr;
+	for (int i = 0; i < get_child_count(); i++) {
+		animation_player = cast_to<AnimationPlayer>(get_child(i));
+		if (animation_player) {
+			break;
+		}
+	}
+	return animation_player;
+}
+
 void SpineAnimationTrack::setup_animation_player() {
 	if (!sprite) return;
 	if (!sprite->get_skeleton_data_res().is_valid() || !sprite->get_skeleton_data_res()->is_skeleton_data_loaded()) return;
+	AnimationPlayer *animation_player = find_animation_player();
+	if (!animation_player) return;
 
 	// If we don't have a track index yet, find the highest track number used
 	// by existing tracks.
@@ -114,14 +128,6 @@ void SpineAnimationTrack::setup_animation_player() {
 
 	// Find the animation player under the track and reset its animation. Create a new one
 	// if there isn't one already.
-	animation_player = nullptr;
-	for (int i = 0; i < get_child_count(); i++) {
-		animation_player = cast_to<AnimationPlayer>(get_child(i));
-		if (animation_player) {
-			break;
-		}
-	}
-
 	if (!animation_player) {
 		animation_player = memnew(AnimationPlayer);
 		animation_player->set_name(String("{0} Track {1}").format(varray(sprite->get_name(), String::num_int64(track_index))));
@@ -187,6 +193,9 @@ void SpineAnimationTrack::update_animation_state(const Variant &variant_sprite)
 	if (!sprite->get_skeleton_data_res().is_valid() || !sprite->get_skeleton_data_res()->is_skeleton_data_loaded()) return;
 	if (track_index < 0) return;
 
+	AnimationPlayer *animation_player = find_animation_player();
+	if (!animation_player) return;
+
 	spine::AnimationState *animation_state = sprite->get_animation_state()->get_spine_object();
 	if (!animation_state) return;
 	spine::Skeleton *skeleton = sprite->get_skeleton()->get_spine_object();

spine-godot/spine_godot/SpineAnimationTrack.h

@@ -57,12 +57,13 @@ protected:
 	bool debug;
 
 	SpineSprite *sprite;
-	AnimationPlayer *animation_player;
 
 	static void _bind_methods();
 	
 	void _notification(int what);
 
+	AnimationPlayer *find_animation_player();
+	
 	void setup_animation_player();
 
 	static Ref<Animation> create_animation(spine::Animation *animation, bool loop);