[haxe][flixel] SkeletonSprite extends FlxTypedGroup<FlxObject> rather than FlxObject.

Replace direct bounds calculation with BoundsProvider interface for better
performance and correctness. This makes it easier to get the correct bounds.

BREAKING CHANGES:
- SkeletonSprite extends FlxTypedGroup<FlxObject> rather than FlxObject. This was necessary because the FlxObject bounding/hitbox is always connected to its position and size and cannot be offset.
- Removed getAnimationBounds() method. Replace it with the appropriate BoundsProvider implementation based on your use case, or create your own.
- Removed setBoundingBox(). Use BoundsProvider features.
- hitTest() now uses the assigned BoundsProvider instead of direct calculation. For accurate hit testing, use CurrentPoseBoundsProvider and call calculateBounds() each frame or on click.

New features:
- Uses BoundsProvider as starling.
- SkeletonSprite constructor now accepts a third optional parameter for BoundsProvider. SetupPoseBoundsProvider is used by default.
- Added calculateBounds() to recalculate bounds on demand.

spine-haxe/example/assets/quad.atlas

@@ -0,0 +1,5 @@
+quad.png
+size:100,100
+filter:Linear,Linear
+image
+bounds:0,0,100,100

spine-haxe/example/assets/quad.json

@@ -0,0 +1,44 @@
+{
+  "bones": [
+    { "name": "root" },
+    {
+      "name": "pivot",
+      "parent": "root",
+      "scaleX": 1,
+      "scaleY": 1,
+      "rotation": 0,
+      "x": 20,
+      "y": -20
+    },
+    {
+      "name": "pivot2",
+      "parent": "pivot",
+      "scaleX": 1,
+      "scaleY": 1,
+      "rotation": 0,
+      "x": 20,
+      "y": -20
+    },
+    {
+      "name": "replaceMe",
+      "parent": "pivot2",
+      "scaleX": 1,
+      "scaleY": 1,
+      "rotation": 0,
+      "x": 20,
+      "y": -20
+    }
+  ],
+  "slots": [
+    { "name": "replaceMe", "bone": "replaceMe", "attachment": "image" }
+  ],
+  "skins": [
+    {
+      "name": "default",
+      "attachments": {
+        "replaceMe": { "image": { "width": 100, "height": 100 } }
+      }
+    }
+  ],
+  "animations": { "animation": {} }
+}

spine-haxe/example/src/flixelExamples/BasicExample.hx

@@ -57,8 +57,7 @@ class BasicExample extends FlxState {
 		animationStateData.defaultMix = 0.25;
 
 		skeletonSprite = new SkeletonSprite(skeletondata, animationStateData);
-		var animation = skeletonSprite.state.setAnimationByName(0, "walk", true).animation;
-		skeletonSprite.setBoundingBox(animation);
+		// skeletonSprite.state.setAnimationByName(0, "walk", true);
 		skeletonSprite.screenCenter();
 		add(skeletonSprite);
 

spine-haxe/example/src/flixelExamples/BoundsProviderExample.hx

@@ -29,6 +29,7 @@
 
 package flixelExamples;
 
+import spine.boundsprovider.SkinsAndAnimationBoundsProvider;
 import flixel.util.FlxColor;
 import flixel.text.FlxText;
 import spine.Skin;
@@ -42,7 +43,7 @@ import spine.SkeletonData;
 import spine.animation.AnimationStateData;
 import spine.atlas.TextureAtlas;
 
-class AnimationBoundExample extends FlxState {
+class BoundsProviderExample extends FlxState {
 	var loadBinary = true;
 
 	override public function create():Void {
@@ -60,38 +61,34 @@ class AnimationBoundExample extends FlxState {
 		var animationStateData = new AnimationStateData(data);
 		animationStateData.defaultMix = 0.25;
 
-		var skeletonSpriteClipping = new SkeletonSprite(data, animationStateData);
-		var animationClipping = skeletonSpriteClipping.state.setAnimationByName(0, "portal", true).animation;
-		skeletonSpriteClipping.update(0);
-		skeletonSpriteClipping.setBoundingBox(animationClipping, true);
+		var skeletonSpriteClipping = new SkeletonSprite(data, animationStateData, new SkinsAndAnimationBoundsProvider("portal", null, null, true));
+		skeletonSpriteClipping.state.setAnimationByName(0, "portal", true);
 		skeletonSpriteClipping.screenCenter();
-		skeletonSpriteClipping.x = FlxG.width / 4 - skeletonSpriteClipping.width / 2;
+		skeletonSpriteClipping.x = FlxG.width / 4;
 		add(skeletonSpriteClipping);
 		var textClipping = new FlxText();
-		textClipping.text = "Animation bound with clipping";
+		textClipping.text = "Bounds with clipping";
 		textClipping.size = 12;
-		textClipping.x = skeletonSpriteClipping.x + skeletonSpriteClipping.width / 2 - textClipping.width / 2;
-		textClipping.y = skeletonSpriteClipping.y + skeletonSpriteClipping.height + 20;
+		textClipping.x = skeletonSpriteClipping.boundsX + skeletonSpriteClipping.width / 2 - textClipping.width / 2;
+		textClipping.y = skeletonSpriteClipping.boundsY + skeletonSpriteClipping.height + 20;
 		textClipping.setBorderStyle(FlxTextBorderStyle.OUTLINE, FlxColor.RED, 2);
 		add(textClipping);
 
-		var skeletonSpriteNoClipping = new SkeletonSprite(data, animationStateData);
-		var animationClipping = skeletonSpriteNoClipping.state.setAnimationByName(0, "portal", true).animation;
-		skeletonSpriteNoClipping.update(0);
-		skeletonSpriteNoClipping.setBoundingBox(animationClipping, false);
+		var skeletonSpriteNoClipping = new SkeletonSprite(data, animationStateData, new SkinsAndAnimationBoundsProvider("portal"));
+		skeletonSpriteNoClipping.state.setAnimationByName(0, "portal", true);
 		skeletonSpriteNoClipping.screenCenter();
-		skeletonSpriteNoClipping.x = FlxG.width / 4 * 3 - skeletonSpriteClipping.width / 2 - 50;
+		skeletonSpriteNoClipping.x = FlxG.width / 4 * 3;
 		add(skeletonSpriteNoClipping);
 		var textNoClipping = new FlxText();
-		textNoClipping.text = "Animation bound without clipping";
+		textNoClipping.text = "Bounds without clipping";
 		textNoClipping.size = 12;
-		textNoClipping.x = skeletonSpriteNoClipping.x + skeletonSpriteNoClipping.width / 2 - textNoClipping.width / 2;
-		textNoClipping.y = skeletonSpriteNoClipping.y + skeletonSpriteNoClipping.height + 20;
+		textNoClipping.x = skeletonSpriteNoClipping.boundsX + skeletonSpriteNoClipping.width / 2 - textNoClipping.width / 2;
+		textNoClipping.y = skeletonSpriteNoClipping.boundsY + skeletonSpriteNoClipping.height + 20;
 		textNoClipping.setBorderStyle(FlxTextBorderStyle.OUTLINE, FlxColor.RED, 2);
 		add(textNoClipping);
 
 		var textInstruction = new FlxText();
-		textInstruction.text = "Red rectangle is the animation bound";
+		textInstruction.text = "Red rectangle is the Spine provider bounds";
 		textInstruction.size = 12;
 		textInstruction.screenCenter();
 		textInstruction.y = textNoClipping.y + 40;

spine-haxe/example/src/flixelExamples/CloudPotExample.hx

@@ -46,7 +46,7 @@ class CloudPotExample extends FlxState {
 	override public function create():Void {
 		FlxG.cameras.bgColor = 0xffa1b2b0;
 
-		var button = new FlxButton(0, 0, "Next scene", () -> FlxG.switchState(() -> new AnimationBoundExample()));
+		var button = new FlxButton(0, 0, "Next scene", () -> FlxG.switchState(() -> new BoundsProviderExample()));
 		button.setPosition(FlxG.width * .75, FlxG.height / 10);
 		add(button);
 

spine-haxe/example/src/flixelExamples/ControlBonesExample.hx

@@ -65,8 +65,7 @@ class ControlBonesExample extends FlxState {
 		var skeletonSprite = new SkeletonSprite(data, animationStateData);
 		skeletonSprite.scaleX = .5;
 		skeletonSprite.scaleY = .5;
-		var animation = skeletonSprite.state.setAnimationByName(0, "idle", true).animation;
-		skeletonSprite.setBoundingBox(animation);
+		skeletonSprite.state.setAnimationByName(0, "idle", true);
 		skeletonSprite.screenCenter();
 		add(skeletonSprite);
 
@@ -77,6 +76,8 @@ class ControlBonesExample extends FlxState {
 			"front-leg-ik-target",
 		];
 
+		// we need to update, to ensure scale is applied before getting bone values
+		skeletonSprite.update(0);
 		var radius = 6;
 		for (boneName in controlBoneNames) {
 			var bone = skeletonSprite.skeleton.findBone(boneName);
@@ -84,7 +85,7 @@ class ControlBonesExample extends FlxState {
 			skeletonSprite.skeletonToHaxeWorldCoordinates(point);
 			var control = new FlxSprite();
 			control.makeGraphic(radius * 2, radius * 2, FlxColor.TRANSPARENT, true);
-			FlxSpriteUtil.drawCircle(control, radius, radius, radius, 0xffff00ff);
+			FlxSpriteUtil.drawCircle(control, -1, -1, -1, 0xffff00ff);
 			control.setPosition(point[0] - radius, point[1] - radius);
 			controlBones.push(bone);
 			controls.push(control);

spine-haxe/example/src/flixelExamples/EventsExample.hx

@@ -68,9 +68,6 @@ class EventsExample extends FlxState {
 		skeletonSprite.state.setAnimationByName(0, "walk", true);
 
 		var trackEntry = skeletonSprite.state.addAnimationByName(0, "run", true, 3);
-		skeletonSprite.setBoundingBox(trackEntry.animation);
-
-		skeletonSprite.setBoundingBox();
 		skeletonSprite.screenCenter();
 		skeletonSprite.skeleton.setupPoseBones();
 		add(skeletonSprite);

spine-haxe/example/src/flixelExamples/FlixelState.hx

@@ -30,6 +30,11 @@
 package flixelExamples;
 
 import flixel.ui.FlxButton;
+import flixel.math.FlxPoint;
+import flixel.util.FlxColor;
+import flixel.util.FlxSpriteUtil;
+import spine.boundsprovider.SetupPoseBoundsProvider;
+import spine.boundsprovider.SkinsAndAnimationBoundsProvider;
 import flixel.group.FlxSpriteGroup;
 import flixel.FlxSprite;
 import flixel.graphics.FlxGraphic;
@@ -56,6 +61,11 @@ class FlixelState extends FlxState {
 	var scale = 4;
 	var speed:Float;
 
+	var skeletonOrigin:FlxSprite;
+	var gameObjectOrigin:FlxSprite;
+	var radius = 3;
+	var rootPoint = [.0, .0];
+
 	override public function create():Void {
 		FlxG.cameras.bgColor = 0xffa1b2b0;
 
@@ -97,12 +107,37 @@ class FlixelState extends FlxState {
 
 		// loading spineboy
 		var atlas = new TextureAtlas(Assets.getText("assets/spineboy.atlas"), new FlixelTextureLoader("assets/spineboy.atlas"));
-		var skeletondata = SkeletonData.from(Assets.getText("assets/spineboy-pro.json"), atlas, 1 / scale);
+		var skeletondata = SkeletonData.from(Assets.getText("assets/spineboy-pro.json"), atlas, 1);
+
+		// var atlas = new TextureAtlas(Assets.getText("assets/quad.atlas"), new FlixelTextureLoader("assets/quad.atlas"));
+		// var skeletondata = SkeletonData.from(Assets.getText("assets/quad.json"), atlas, 2);
+
 		var animationStateData = new AnimationStateData(skeletondata);
-		spineSprite = new SkeletonSprite(skeletondata, animationStateData);
+		// spineSprite = new SkeletonSprite(skeletondata, animationStateData, new SetupPoseBoundsProvider());
+
+		spineSprite = new SkeletonSprite(skeletondata, animationStateData, new SkinsAndAnimationBoundsProvider("walk"));
+
+		spineSprite.scale = new FlxPoint(1 / scale, 1 / scale);
 
 		// positioning spineboy
-		spineSprite.setPosition(.5 * FlxG.width, .5 * FlxG.height);
+		spineSprite.screenCenter();
+		spineSprite.y += spineSprite.height / 2;
+
+		var control3 = new FlxSprite();
+		control3.makeGraphic(radius * 2, radius * 2, FlxColor.TRANSPARENT, true);
+		FlxSpriteUtil.drawCircle(control3, radius, radius, radius, 0xff5500ff);
+		add(control3);
+		control3.setPosition(FlxG.width / 2, FlxG.height / 2);
+
+		skeletonOrigin = new FlxSprite();
+		skeletonOrigin.makeGraphic(radius * 2, radius * 2, FlxColor.TRANSPARENT, true);
+		FlxSpriteUtil.drawCircle(skeletonOrigin, radius, radius, radius, 0xff5500ff);
+		add(skeletonOrigin);
+
+		gameObjectOrigin = new FlxSprite();
+		gameObjectOrigin.makeGraphic(radius * 2, radius * 2, FlxColor.TRANSPARENT, true);
+		FlxSpriteUtil.drawCircle(gameObjectOrigin, radius, radius, radius, 0xffff9100);
+		add(gameObjectOrigin);
 
 		// setting mix times
 		animationStateData.defaultMix = 0.5;
@@ -119,7 +154,7 @@ class FlixelState extends FlxState {
 		// setting idle animation
 		spineSprite.state.setAnimationByName(0, "idle", true);
 
-		// setting y offset function to move object body while jumping
+		// // setting y offset function to move object body while jumping
 		var hip = spineSprite.skeleton.findBone("hip");
 		var initialY = 0.;
 		var initialOffsetY = 0.;
@@ -137,13 +172,19 @@ class FlixelState extends FlxState {
 			}
 		});
 		var diff = .0;
+		var tmpPoint = [.0, .0];
 		spineSprite.afterUpdateWorldTransforms = spineSprite -> {
 			if (jumping) {
-				diff -= hip.pose.y;
-				spineSprite.offsetY -= diff;
-				spineSprite.y += diff;
+				tmpPoint[1] = hip.applied.worldY;
+				spineSprite.skeletonToHaxeWorldCoordinates(tmpPoint);
+				diff -= (tmpPoint[1]);
+				spineSprite.offsetY += diff;
+				spineSprite.y -= diff;
 			}
-			diff = hip.pose.y;
+
+			tmpPoint[1] = hip.applied.worldY;
+			spineSprite.skeletonToHaxeWorldCoordinates(tmpPoint);
+			diff = tmpPoint[1];
 		}
 
 		// adding spineboy to the stage
@@ -152,7 +193,7 @@ class FlixelState extends FlxState {
 		// FlxG.debugger.visible = !FlxG.debugger.visible;
 		// debug ui
 		// FlxG.debugger.visible = true;
-		// FlxG.debugger.drawDebug = true;
+		FlxG.debugger.drawDebug = true;
 		// FlxG.log.redirectTraces = true;
 
 		// FlxG.debugger.track(spineSprite);
@@ -160,12 +201,14 @@ class FlixelState extends FlxState {
 		// FlxG.watch.add(spineSprite, "offsetY");
 		// FlxG.watch.add(spineSprite, "y");
 		// FlxG.watch.add(this, "jumping");
+
 		super.create();
 	}
 
 	var justSetIdle = true;
 
 	override public function update(elapsed:Float):Void {
+		// spineSprite.calculateBounds();
 		if (FlxG.overlap(spineSprite, group)) {
 			myText.text = "Overlapping";
 		} else {
@@ -184,6 +227,17 @@ class FlixelState extends FlxState {
 			FlxG.debugger.visible = !FlxG.debugger.visible;
 		}
 
+		if (FlxG.keys.anyPressed([UP, DOWN])) {
+			if (FlxG.keys.anyPressed([UP])) {
+				if (spineSprite.flipY == true)
+					spineSprite.flipY = false;
+			}
+			if (FlxG.keys.anyPressed([DOWN])) {
+				if (spineSprite.flipY == false)
+					spineSprite.flipY = true;
+			}
+		}
+
 		if (FlxG.keys.anyPressed([RIGHT, LEFT])) {
 			justSetIdle = false;
 			var flipped = false;
@@ -217,6 +271,13 @@ class FlixelState extends FlxState {
 			spineSprite.state.setAnimationByName(0, "idle", true);
 		}
 
+		var rootBone = spineSprite.skeleton.findBone("root");
+		rootPoint[0] = rootBone.applied.worldX;
+		rootPoint[1] = rootBone.applied.worldY;
+		spineSprite.skeletonToHaxeWorldCoordinates(rootPoint);
+		skeletonOrigin.setPosition(rootPoint[0] - radius, rootPoint[1] - radius);
+		gameObjectOrigin.setPosition(spineSprite.x - radius, spineSprite.y - radius);
+
 		super.update(elapsed);
 	}
 }

spine-haxe/example/src/flixelExamples/MixAndMatchExample.hx

@@ -29,6 +29,7 @@
 
 package flixelExamples;
 
+import spine.boundsprovider.SkinsAndAnimationBoundsProvider;
 import spine.Skin;
 import flixel.ui.FlxButton;
 import flixel.FlxG;
@@ -59,7 +60,7 @@ class MixAndMatchExample extends FlxState {
 		var animationStateData = new AnimationStateData(data);
 		animationStateData.defaultMix = 0.25;
 
-		skeletonSprite = new SkeletonSprite(data, animationStateData);
+		skeletonSprite = new SkeletonSprite(data, animationStateData, new SkinsAndAnimationBoundsProvider("dance", ["full-skins/boy"]));
 		var customSkin = new Skin("custom");
 		var skinBase = data.findSkin("skin-base");
 		customSkin.addSkin(skinBase);
@@ -74,8 +75,7 @@ class MixAndMatchExample extends FlxState {
 		skeletonSprite.skeleton.skin = customSkin;
 
 		skeletonSprite.state.update(0);
-		var animation = skeletonSprite.state.setAnimationByName(0, "dance", true).animation;
-		skeletonSprite.setBoundingBox(animation);
+		skeletonSprite.state.setAnimationByName(0, "dance", true);
 		skeletonSprite.screenCenter();
 		add(skeletonSprite);
 

spine-haxe/example/src/flixelExamples/SequenceExample.hx

@@ -59,7 +59,6 @@ class SequenceExample extends FlxState {
 		skeletonSprite = new SkeletonSprite(skeletondata, animationStateData);
 
 		var animation = skeletonSprite.state.setAnimationByName(0, "flying", true).animation;
-		skeletonSprite.setBoundingBox(animation);
 		skeletonSprite.screenCenter();
 		add(skeletonSprite);
 		super.create();

spine-haxe/example/src/flixelExamples/TankExample.hx

@@ -57,7 +57,6 @@ class TankExample extends FlxState {
 
 		var skeletonSprite = new SkeletonSprite(data, animationStateData);
 		var animation = skeletonSprite.state.setAnimationByName(0, "drive", true).animation;
-		skeletonSprite.setBoundingBox(animation);
 		skeletonSprite.screenCenter();
 		add(skeletonSprite);
 

spine-haxe/example/src/flixelExamples/VineExample.hx

@@ -57,7 +57,6 @@ class VineExample extends FlxState {
 
 		var skeletonSprite = new SkeletonSprite(data, animationStateData);
 		var animation = skeletonSprite.state.setAnimationByName(0, "grow", true).animation;
-		skeletonSprite.setBoundingBox(animation);
 		skeletonSprite.screenCenter();
 		add(skeletonSprite);
 

spine-haxe/project.xml

@@ -2,9 +2,9 @@
 <project>
 
 	<meta title="spine-haxe-example" package="spine" version="4.2.0" company="Esoteric Software" />
-	<app main="Main" path="export" file="SpineHaxeExample" />
+	<!-- <app main="Main" path="export" file="SpineHaxeExample" /> -->
 	<!-- <app main="MainStarling" path="export" file="SpineHaxeExample" /> -->
-	<!-- <app main="MainFlixel" path="export" file="SpineHaxeExample" /> -->
+	<app main="MainFlixel" path="export" file="SpineHaxeExample" />
 	<window allow-high-dpi="true" />
 
 	<haxelib name="openfl" />

spine-haxe/spine-haxe/spine/BoundsProvider/SetupPoseBoundsProvider.hx

@@ -45,8 +45,8 @@ class SetupPoseBoundsProvider extends BoundsProvider {
 	}
 
 	public function calculateBounds(gameObject:BoundsGameObject, out:BoundsRectangle):BoundsRectangle {
-		var skeleton = gameObject.skeleton;
-		if (skeleton == null) {
+		var prevSkeleton = gameObject.skeleton;
+		if (prevSkeleton == null) {
 			zeroRectangle(out);
 			return out;
 		}
@@ -54,7 +54,9 @@ class SetupPoseBoundsProvider extends BoundsProvider {
 		// Make a copy of  skeleton as this might be called while
 		// the skeleton in the GameObject has already been heavily modified. We can not
 		// reconstruct that state.
-		var skeleton = new Skeleton(skeleton.data);
+		var skeleton = new Skeleton(prevSkeleton.data);
+		skeleton.scaleX = prevSkeleton.scaleX;
+		skeleton.scaleY = prevSkeleton.scaleY * Bone.yDir;
 		skeleton.setupPose();
 		skeleton.updateWorldTransform(Physics.update);
 		var newBounds = skeleton.getBounds(clipping ? new SkeletonClipping() : null);

spine-haxe/spine-haxe/spine/BoundsProvider/SkinsAndAnimationBoundsProvider.hx

@@ -56,9 +56,9 @@ class SkinsAndAnimationBoundsProvider extends BoundsProvider {
 	}
 
 	public function calculateBounds(gameObject:BoundsGameObject, out:BoundsRectangle):BoundsRectangle {
-		var skeleton = gameObject.skeleton;
+		var prevSkeleton = gameObject.skeleton;
 		var state = gameObject.state;
-		if (skeleton == null || state == null) {
+		if (prevSkeleton == null || state == null) {
 			zeroRectangle(out);
 			return out;
 		}
@@ -67,7 +67,9 @@ class SkinsAndAnimationBoundsProvider extends BoundsProvider {
 		// the skeleton in the GameObject has already been heavily modified. We can not
 		// reconstruct that state.
 		var animationState = new AnimationState(state.data);
-		var skeleton = new Skeleton(skeleton.data);
+		var skeleton = new Skeleton(prevSkeleton.data);
+		skeleton.scaleX = prevSkeleton.scaleX;
+		skeleton.scaleY = prevSkeleton.scaleY * Bone.yDir;
 		var clipper = clipping ? new SkeletonClipping() : null;
 		var data = skeleton.data;
 		if (skins.length > 0) {

spine-haxe/spine-haxe/spine/flixel/SkeletonSprite.hx

@@ -29,42 +29,35 @@
 
 package spine.flixel;
 
+import flixel.util.FlxDirectionFlags;
+import flixel.math.FlxRect;
+import flixel.FlxCamera;
+import flixel.FlxBasic;
+import flixel.util.FlxAxes;
+import flixel.group.FlxGroup.FlxTypedGroup;
+import spine.boundsprovider.SetupPoseBoundsProvider;
+import spine.boundsprovider.BoundsProvider;
 import openfl.geom.Point;
 import flixel.math.FlxPoint;
 import flixel.math.FlxMatrix;
-import spine.animation.MixDirection;
-import spine.animation.MixBlend;
-import spine.animation.Animation;
 import spine.TextureRegion;
-import haxe.extern.EitherType;
-import spine.attachments.Attachment;
-import flixel.util.typeLimit.OneOfTwo;
-import flixel.FlxCamera;
-import flixel.math.FlxRect;
 import flixel.FlxG;
 import flixel.FlxObject;
-import flixel.FlxSprite;
-import flixel.FlxStrip;
-import flixel.group.FlxSpriteGroup;
-import flixel.graphics.FlxGraphic;
 import flixel.util.FlxColor;
 import openfl.Vector;
-import openfl.display.BlendMode;
 import spine.Bone;
-import spine.Rectangle;
 import spine.Skeleton;
 import spine.SkeletonData;
 import spine.Slot;
 import spine.animation.AnimationState;
 import spine.animation.AnimationStateData;
-import spine.atlas.TextureAtlasRegion;
 import spine.attachments.MeshAttachment;
 import spine.attachments.RegionAttachment;
 import spine.attachments.ClippingAttachment;
 import spine.flixel.SkeletonMesh;
 
 /** A FlxObject that draws a skeleton. The animation state and skeleton must be updated each frame. */
-class SkeletonSprite extends FlxObject {
+class SkeletonSprite extends FlxTypedGroup<FlxObject> {
 	public var skeleton(default, null):Skeleton;
 	public var state(default, null):AnimationState;
 	public var stateData(default, null):AnimationStateData;
@@ -81,6 +74,18 @@ class SkeletonSprite extends FlxObject {
 	public var flipY(default, set):Bool = false;
 	public var antialiasing:Bool = true;
 
+	public var boundsProvider:BoundsProvider;
+
+	public var angle(default, set) = 0.;
+	public var x(default, set) = 0.;
+	public var y(default, set) = 0.;
+	public var width(get, set):Float;
+	public var height(get, set):Float;
+	public var boundsX(get, never):Float;
+	public var boundsY(get, never):Float;
+
+	@:isVar
+	public var scale(never, set):FlxPoint;
 	@:isVar
 	public var scaleX(get, set):Float = 1;
 	@:isVar
@@ -92,103 +97,50 @@ class SkeletonSprite extends FlxObject {
 
 	private var _tempMatrix = new FlxMatrix();
 	private var _tempPoint = new Point();
+	private var _tempPointFlip = [.0, .0];
+	private var __bounds = new openfl.geom.Rectangle();
+	private var __objectBounds = new FlxObject();
 
 	private static var QUAD_INDICES:Array<Int> = [0, 1, 2, 2, 3, 0];
 
 	/** Creates an uninitialized SkeletonSprite. The renderer, skeleton, and animation state must be set before use. */
-	public function new(skeletonData:SkeletonData, animationStateData:AnimationStateData = null) {
-		super(0, 0);
+	public function new(skeletonData:SkeletonData, animationStateData:AnimationStateData = null, ?boundsProvider:BoundsProvider) {
+		super(1);
 		Bone.yDown = true;
 		skeleton = new Skeleton(skeletonData);
 		skeleton.updateWorldTransform(Physics.update);
 		state = new AnimationState(animationStateData != null ? animationStateData : new AnimationStateData(skeletonData));
-		setBoundingBox();
+		// setBoundingBox();
+		this.boundsProvider = boundsProvider ?? new SetupPoseBoundsProvider();
+		this.calculateBounds();
+		add(__objectBounds);
 	}
 
-	public function setBoundingBox(?animation:Animation, ?clip:Bool = true) {
-		var bounds = animation == null ? skeleton.getBounds() : getAnimationBounds(animation, clip);
-		if (bounds.width > 0 && bounds.height > 0) {
-			width = bounds.width;
-			height = bounds.height;
-			offsetX = -bounds.x;
-			offsetY = -bounds.y;
-		}
+	// TODO: this changes the scale
+	// public function setSize(width:Float, height:Float):Void {
+	// 	this.width = width;
+	// 	this.height = height;
+	// }
+	// ============================================================
+	// DEBUG METHODS (if FLX_DEBUG)
+	// ============================================================
+	#if FLX_DEBUG
+	public function drawDebug():Void {
+		__objectBounds.drawDebug();
 	}
 
-	public function getAnimationBounds(animation:Animation, clip:Bool = true):Rectangle {
-		var clipper = clip ? SkeletonSprite.clipper : null;
-		skeleton.setupPose();
-
-		var steps = 100, time = 0.;
-		var stepTime = animation.duration != 0 ? animation.duration / steps : 0;
-		var minX = 100000000.,
-			maxX = -100000000.,
-			minY = 100000000.,
-			maxY = -100000000.;
-
-		for (i in 0...steps) {
-			animation.apply(skeleton, time, time, false, [], 1, MixBlend.setup, MixDirection.mixIn, false);
-			skeleton.updateWorldTransform(Physics.update);
-			var boundsSkel = skeleton.getBounds(clipper);
-
-			if (!Math.isNaN(boundsSkel.x) && !Math.isNaN(boundsSkel.y) && !Math.isNaN(boundsSkel.width) && !Math.isNaN(boundsSkel.height)) {
-				minX = Math.min(boundsSkel.x, minX);
-				minY = Math.min(boundsSkel.y, minY);
-				maxX = Math.max(boundsSkel.x + boundsSkel.width, maxX);
-				maxY = Math.max(boundsSkel.y + boundsSkel.height, maxY);
-			} else
-				throw new SpineException("Animation bounds are invalid: " + animation.name);
-
-			time += stepTime;
-		}
-
-		var bounds = new Rectangle();
-		bounds.x = minX;
-		bounds.y = minY;
-		bounds.width = maxX - minX;
-		bounds.height = maxY - minY;
-		return bounds;
+	public function drawDebugOnCamera(camera:FlxCamera):Void {
+		__objectBounds.drawDebugOnCamera(camera);
 	}
+	#end
 
-	override public function destroy():Void {
-		state.clearListeners();
-		state = null;
-		skeleton = null;
-
-		_tempVertices = null;
-		_quadTriangles = null;
-		_tempMatrix = null;
-		_tempPoint = null;
-
-		if (_meshes != null) {
-			for (mesh in _meshes)
-				mesh.destroy();
-			_meshes = null;
-		}
-
-		super.destroy();
-	}
-
-	override public function update(elapsed:Float):Void {
-		super.update(elapsed);
-		state.update(elapsed);
-		state.apply(skeleton);
-		this.beforeUpdateWorldTransforms(this);
-		skeleton.update(elapsed);
-		skeleton.updateWorldTransform(Physics.update);
-		this.afterUpdateWorldTransforms(this);
-	}
-
-	override public function draw():Void {
-		if (alpha == 0)
-			return;
-
-		renderMeshes();
-
-		#if FLX_DEBUG
-		if (FlxG.debugger.drawDebug)
-			drawDebug();
-		#end
+	// ============================================================
+	// SKELETON SPRITE METHODS
+	// ============================================================
+	public function calculateBounds() {
+		this.boundsProvider.calculateBounds(this, __bounds);
+		__objectBounds.setPosition(x + __bounds.x, y + __bounds.y);
+		__objectBounds.setSize(__bounds.width, __bounds.height);
 	}
 
 	function renderMeshes():Void {
@@ -320,7 +272,7 @@ class SkeletonSprite extends FlxObject {
 	private function getTransformMatrix():FlxMatrix {
 		_tempMatrix.identity();
 		// scale is connected to the skeleton scale - no need to rescale
-		_tempMatrix.scale(1, 1);
+		// _tempMatrix.scale(1, 1);
 		_tempMatrix.rotate(angle * Math.PI / 180);
 		_tempMatrix.translate(x + offsetX, y + offsetY);
 		return _tempMatrix;
@@ -375,18 +327,24 @@ class SkeletonSprite extends FlxObject {
 	}
 
 	function set_flipX(value:Bool):Bool {
-		if (value != flipX)
+		if (value != flipX) {
 			skeleton.scaleX = -skeleton.scaleX;
+			this.calculateBounds();
+		}
 		return flipX = value;
 	}
 
 	function set_flipY(value:Bool):Bool {
-		if (value != flipY)
-			skeleton.scaleY = -skeleton.scaleY;
+		if (value != flipY) {
+			skeleton.scaleY = -skeleton.scaleY * Bone.yDir;
+			this.calculateBounds();
+		}
 		return flipY = value;
 	}
 
 	function set_scale(value:FlxPoint):FlxPoint {
+		scaleX = value.x;
+		scaleY = value.y;
 		return value;
 	}
 
@@ -395,15 +353,199 @@ class SkeletonSprite extends FlxObject {
 	}
 
 	function set_scaleX(value:Float):Float {
-		return skeleton.scaleX = value;
+		skeleton.scaleX = value;
+		this.calculateBounds();
+		return value;
 	}
 
 	function get_scaleY():Float {
-		return skeleton.scaleY;
+		return skeleton.scaleY * Bone.yDir;
 	}
 
 	function set_scaleY(value:Float):Float {
-		return skeleton.scaleY = value;
+		skeleton.scaleY = value;
+		this.calculateBounds();
+		return value;
+	}
+
+	function set_angle(value:Float):Float {
+		__objectBounds.angle = value;
+		return angle = value;
+	}
+
+	function set_x(value:Float):Float {
+		__objectBounds.x = __bounds.x + value;
+		return x = value;
+	}
+
+	function set_y(value:Float):Float {
+		__objectBounds.y = __bounds.y + value;
+		return y = value;
+	}
+
+	function get_height():Float {
+		return __bounds.height;
+	}
+
+	function get_width():Float {
+		return __bounds.width;
+	}
+
+	function set_width(value:Float):Float {
+		var scale = value / __bounds.width;
+		scaleX *= scale;
+		return __bounds.width;
+	}
+
+	function set_height(value:Float):Float {
+		var scale = value / __bounds.height;
+		scaleY *= scale;
+		return __bounds.height;
+	}
+
+	function get_boundsX():Float {
+		return __objectBounds.x;
+	}
+
+	function get_boundsY():Float {
+		return __objectBounds.y;
+	}
+
+	// ============================================================
+	// OVERRIDE METHODS FROM FlxBasic
+	// ============================================================
+
+	override public function update(elapsed:Float):Void {
+		super.update(elapsed);
+		state.update(elapsed);
+		state.apply(skeleton);
+		this.beforeUpdateWorldTransforms(this);
+		skeleton.update(elapsed);
+		skeleton.updateWorldTransform(Physics.update);
+		this.afterUpdateWorldTransforms(this);
+	}
+
+	override public function draw():Void {
+		if (alpha == 0)
+			return;
+
+		renderMeshes();
+
+		#if FLX_DEBUG
+		if (FlxG.debugger.drawDebug)
+			__objectBounds.drawDebug();
+		#end
+	}
+
+	override public function destroy():Void {
+		state.clearListeners();
+		state = null;
+		skeleton = null;
+
+		_tempVertices = null;
+		_quadTriangles = null;
+		_tempMatrix = null;
+		_tempPoint = null;
+
+		if (_meshes != null) {
+			for (mesh in _meshes)
+				mesh.destroy();
+			_meshes = null;
+		}
+
+		super.destroy();
+	}
+
+	// ============================================================
+	// OVERLAP/COLLISION METHODS
+	// ============================================================
+
+	public function overlaps(objectOrGroup:FlxBasic, inScreenSpace:Bool = false, ?camera:FlxCamera):Bool {
+		return __objectBounds.overlaps(objectOrGroup, inScreenSpace, camera);
+	}
+
+	public function overlapsAt(x:Float, y:Float, objectOrGroup:FlxBasic, inScreenSpace = false, ?camera:FlxCamera):Bool {
+		return __objectBounds.overlapsAt(x, y, objectOrGroup, inScreenSpace, camera);
+	}
+
+	public function overlapsPoint(point:FlxPoint, inScreenSpace = false, ?camera:FlxCamera):Bool {
+		return __objectBounds.overlapsPoint(point, inScreenSpace, camera);
+	}
+
+	// ============================================================
+	// BOUNDS/POSITION METHODS
+	// ============================================================
+
+	public function inWorldBounds():Bool {
+		return __objectBounds.inWorldBounds();
+	}
+
+	public function getScreenPosition(?result:FlxPoint, ?camera:FlxCamera):FlxPoint {
+		return __objectBounds.getScreenPosition(result, camera);
+	}
+
+	public function getPosition(?result:FlxPoint):FlxPoint {
+		return __objectBounds.getPosition(result);
+	}
+
+	public function getMidpoint(?point:FlxPoint):FlxPoint {
+		return __objectBounds.getMidpoint(point);
+	}
+
+	public function getHitbox(?rect:FlxRect):FlxRect {
+		return __objectBounds.getHitbox(rect);
+	}
+
+	public function getRotatedBounds(?newRect:FlxRect):FlxRect {
+		return __objectBounds.getRotatedBounds(newRect);
+	}
+
+	// ============================================================
+	// STATE METHODS
+	// ============================================================
+
+	public function reset(x:Float, y:Float):Void {
+		__objectBounds.reset(x, y);
+	}
+
+	public function isOnScreen(?camera:FlxCamera):Bool {
+		return __objectBounds.isOnScreen(camera);
+	}
+
+	public function isPixelPerfectRender(?camera:FlxCamera):Bool {
+		return __objectBounds.isPixelPerfectRender(camera);
+	}
+
+	public function isTouching(direction:FlxDirectionFlags):Bool {
+		return __objectBounds.isTouching(direction);
+	}
+
+	public function justTouched(direction:FlxDirectionFlags):Bool {
+		return __objectBounds.justTouched(direction);
+	}
+
+	// ============================================================
+	// UTILITY METHODS
+	// ============================================================
+
+	public inline function screenCenter(axes:FlxAxes = XY):SkeletonSprite {
+		if (axes.x)
+			x = (FlxG.width - __bounds.width) / 2 - __bounds.x;
+
+		if (axes.y)
+			y = (FlxG.height - __bounds.height) / 2 - __bounds.y;
+
+		return this;
+	}
+
+	public function setPosition(x = 0.0, y = 0.0):Void {
+		this.x = x;
+		this.y = y;
+	}
+
+	public function setSize(width:Float, height:Float):Void {
+		this.width = width;
+		this.height = height;
 	}
 }
 

spine-ts/spine-pixi-v8/example/control-bones-example.html

@@ -46,9 +46,13 @@
 
         // Create the spine display object
         const stretchyman = spine.Spine.from({skeleton: "stretchymanData", atlas: "stretchymanAtlas",
-          scale: 0.75,
+          scale: 1,
+          // scale: 0.75,
         });
 
+        stretchyman.skeleton.scaleX = .5;
+        stretchyman.skeleton.scaleY = 1;
+
          // Set the default mix time to use when transitioning
         // from one animation to the next.
         stretchyman.state.data.defaultMix = 0.2;