Animation state example for SFML to match other runtimes.

spine-sfml/data/spineboy-jump.json

@@ -0,0 +1,410 @@
+{
+"bones": {
+	"hip": {
+		"rotate": [
+			{ "time": 0, "angle": 0, "curve": "stepped" },
+			{ "time": 0.9333, "angle": 0, "curve": "stepped" },
+			{ "time": 1.3666, "angle": 0 }
+		],
+		"translate": [
+			{ "time": 0, "x": -11.57, "y": -3 },
+			{ "time": 0.2333, "x": -16.2, "y": -19.43 },
+			{
+				"time": 0.3333,
+				"x": 7.66,
+				"y": -8.48,
+				"curve": [ 0.057, 0.06, 0.712, 1 ]
+			},
+			{ "time": 0.3666, "x": 15.38, "y": 5.01 },
+			{ "time": 0.4666, "x": -7.84, "y": 57.22 },
+			{
+				"time": 0.6,
+				"x": -10.81,
+				"y": 96.34,
+				"curve": [ 0.241, 0, 1, 1 ]
+			},
+			{ "time": 0.7333, "x": -7.01, "y": 54.7 },
+			{ "time": 0.8, "x": -10.58, "y": 32.2 },
+			{ "time": 0.9333, "x": -31.99, "y": 0.45 },
+			{ "time": 1.0666, "x": -12.48, "y": -29.47 },
+			{ "time": 1.3666, "x": -11.57, "y": -3 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"left upper leg": {
+		"rotate": [
+			{ "time": 0, "angle": 17.13 },
+			{ "time": 0.2333, "angle": 44.35 },
+			{ "time": 0.3333, "angle": 16.46 },
+			{ "time": 0.4, "angle": -9.88 },
+			{ "time": 0.4666, "angle": -11.42 },
+			{ "time": 0.5666, "angle": 23.46 },
+			{ "time": 0.7666, "angle": 71.82 },
+			{ "time": 0.9333, "angle": 65.53 },
+			{ "time": 1.0666, "angle": 51.01 },
+			{ "time": 1.3666, "angle": 17.13 }
+		],
+		"translate": [
+			{ "time": 0, "x": -3, "y": -2.25, "curve": "stepped" },
+			{ "time": 0.9333, "x": -3, "y": -2.25, "curve": "stepped" },
+			{ "time": 1.3666, "x": -3, "y": -2.25 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"left lower leg": {
+		"rotate": [
+			{ "time": 0, "angle": -16.25 },
+			{ "time": 0.2333, "angle": -52.21 },
+			{ "time": 0.4, "angle": 15.04 },
+			{ "time": 0.4666, "angle": -8.95 },
+			{ "time": 0.5666, "angle": -39.53 },
+			{ "time": 0.7666, "angle": -27.27 },
+			{ "time": 0.9333, "angle": -3.52 },
+			{ "time": 1.0666, "angle": -61.92 },
+			{ "time": 1.3666, "angle": -16.25 }
+		],
+		"translate": [
+			{ "time": 0, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 0.9333, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 1.3666, "x": 0, "y": 0 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"left foot": {
+		"rotate": [
+			{ "time": 0, "angle": 0.33 },
+			{ "time": 0.2333, "angle": 6.2 },
+			{ "time": 0.3333, "angle": 14.73 },
+			{ "time": 0.4, "angle": -15.54 },
+			{ "time": 0.4333, "angle": -21.2 },
+			{ "time": 0.5666, "angle": -7.55 },
+			{ "time": 0.7666, "angle": -0.67 },
+			{ "time": 0.9333, "angle": -0.58 },
+			{ "time": 1.0666, "angle": 14.64 },
+			{ "time": 1.3666, "angle": 0.33 }
+		],
+		"translate": [
+			{ "time": 0, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 0.9333, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 1.3666, "x": 0, "y": 0 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"right upper leg": {
+		"rotate": [
+			{ "time": 0, "angle": 25.97 },
+			{ "time": 0.2333, "angle": 46.43 },
+			{ "time": 0.3333, "angle": 22.61 },
+			{ "time": 0.4, "angle": 2.13 },
+			{
+				"time": 0.4666,
+				"angle": 0.04,
+				"curve": [ 0, 0, 0.637, 0.98 ]
+			},
+			{ "time": 0.6, "angle": 65.55 },
+			{ "time": 0.7666, "angle": 64.93 },
+			{ "time": 0.9333, "angle": 41.08 },
+			{ "time": 1.0666, "angle": 66.25 },
+			{ "time": 1.3666, "angle": 25.97 }
+		],
+		"translate": [
+			{ "time": 0, "x": 5.74, "y": 0.61 },
+			{ "time": 0.2333, "x": 4.79, "y": 1.79 },
+			{ "time": 0.3333, "x": 6.05, "y": -4.55 },
+			{ "time": 0.9333, "x": 4.79, "y": 1.79, "curve": "stepped" },
+			{ "time": 1.0666, "x": 4.79, "y": 1.79 },
+			{ "time": 1.3666, "x": 5.74, "y": 0.61 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"right lower leg": {
+		"rotate": [
+			{ "time": 0, "angle": -27.46 },
+			{ "time": 0.2333, "angle": -64.03 },
+			{ "time": 0.4, "angle": -48.36 },
+			{ "time": 0.5666, "angle": -76.86 },
+			{ "time": 0.7666, "angle": -26.89 },
+			{ "time": 0.9, "angle": -18.97 },
+			{ "time": 0.9333, "angle": -14.18 },
+			{ "time": 1.0666, "angle": -80.45 },
+			{ "time": 1.3666, "angle": -27.46 }
+		],
+		"translate": [
+			{ "time": 0, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 0.9333, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 1.3666, "x": 0, "y": 0 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"right foot": {
+		"rotate": [
+			{ "time": 0, "angle": 1.08 },
+			{ "time": 0.2333, "angle": 16.02 },
+			{ "time": 0.3, "angle": 12.94 },
+			{ "time": 0.3333, "angle": 15.16 },
+			{ "time": 0.4, "angle": -14.7 },
+			{ "time": 0.4333, "angle": -12.85 },
+			{ "time": 0.4666, "angle": -19.18 },
+			{ "time": 0.5666, "angle": -15.82 },
+			{ "time": 0.6, "angle": -3.59 },
+			{ "time": 0.7666, "angle": -3.56 },
+			{ "time": 0.9333, "angle": 1.86 },
+			{ "time": 1.0666, "angle": 16.02 },
+			{ "time": 1.3666, "angle": 1.08 }
+		],
+		"translate": [
+			{ "time": 0, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 0.9333, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 1.3666, "x": 0, "y": 0 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"torso": {
+		"rotate": [
+			{ "time": 0, "angle": -13.35 },
+			{ "time": 0.2333, "angle": -48.95 },
+			{ "time": 0.4333, "angle": -35.77 },
+			{ "time": 0.6, "angle": -4.59 },
+			{ "time": 0.7666, "angle": 14.61 },
+			{ "time": 0.9333, "angle": 15.74 },
+			{ "time": 1.0666, "angle": -32.44 },
+			{ "time": 1.3666, "angle": -13.35 }
+		],
+		"translate": [
+			{ "time": 0, "x": -3.67, "y": 1.68, "curve": "stepped" },
+			{ "time": 0.9333, "x": -3.67, "y": 1.68, "curve": "stepped" },
+			{ "time": 1.3666, "x": -3.67, "y": 1.68 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"neck": {
+		"rotate": [
+			{ "time": 0, "angle": 12.78 },
+			{ "time": 0.2333, "angle": 16.46 },
+			{ "time": 0.4, "angle": 26.49 },
+			{ "time": 0.6, "angle": 15.51 },
+			{ "time": 0.7666, "angle": 1.34 },
+			{ "time": 0.9333, "angle": 2.35 },
+			{ "time": 1.0666, "angle": 6.08 },
+			{ "time": 1.3, "angle": 21.23 },
+			{ "time": 1.3666, "angle": 12.78 }
+		],
+		"translate": [
+			{ "time": 0, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 0.9333, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 1.3666, "x": 0, "y": 0 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"head": {
+		"rotate": [
+			{ "time": 0, "angle": 5.19 },
+			{ "time": 0.2333, "angle": 20.27 },
+			{ "time": 0.4, "angle": 15.27 },
+			{ "time": 0.6, "angle": -24.69 },
+			{ "time": 0.7666, "angle": -11.02 },
+			{ "time": 0.9333, "angle": -24.38 },
+			{ "time": 1.0666, "angle": 11.99 },
+			{ "time": 1.3, "angle": 4.86 },
+			{ "time": 1.3666, "angle": 5.19 }
+		],
+		"translate": [
+			{ "time": 0, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 0.9333, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 1.3666, "x": 0, "y": 0 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"left shoulder": {
+		"rotate": [
+			{
+				"time": 0,
+				"angle": 0.05,
+				"curve": [ 0, 0, 0.62, 1 ]
+			},
+			{
+				"time": 0.2333,
+				"angle": 279.66,
+				"curve": [ 0.218, 0.67, 0.66, 0.99 ]
+			},
+			{
+				"time": 0.5,
+				"angle": 62.27,
+				"curve": [ 0.462, 0, 0.764, 0.58 ]
+			},
+			{ "time": 0.9333, "angle": 28.91 },
+			{ "time": 1.0666, "angle": -8.62 },
+			{ "time": 1.1666, "angle": -18.43 },
+			{ "time": 1.3666, "angle": 0.05 }
+		],
+		"translate": [
+			{ "time": 0, "x": -1.76, "y": 0.56, "curve": "stepped" },
+			{ "time": 0.9333, "x": -1.76, "y": 0.56, "curve": "stepped" },
+			{ "time": 1.3666, "x": -1.76, "y": 0.56 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"left hand": {
+		"rotate": [
+			{ "time": 0, "angle": 11.58, "curve": "stepped" },
+			{ "time": 0.9333, "angle": 11.58, "curve": "stepped" },
+			{ "time": 1.3666, "angle": 11.58 }
+		],
+		"translate": [
+			{ "time": 0, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 0.9333, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 1.3666, "x": 0, "y": 0 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"left arm": {
+		"rotate": [
+			{ "time": 0, "angle": 0.51 },
+			{ "time": 0.4333, "angle": 12.82 },
+			{ "time": 0.6, "angle": 47.55 },
+			{ "time": 0.9333, "angle": 12.82 },
+			{ "time": 1.1666, "angle": -6.5 },
+			{ "time": 1.3666, "angle": 0.51 }
+		],
+		"translate": [
+			{ "time": 0, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 0.9333, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 1.3666, "x": 0, "y": 0 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"right shoulder": {
+		"rotate": [
+			{
+				"time": 0,
+				"angle": 43.82,
+				"curve": [ 0, 0, 0.62, 1 ]
+			},
+			{
+				"time": 0.2333,
+				"angle": -8.74,
+				"curve": [ 0.304, 0.58, 0.709, 0.97 ]
+			},
+			{
+				"time": 0.5333,
+				"angle": -208.02,
+				"curve": [ 0.462, 0, 0.764, 0.58 ]
+			},
+			{ "time": 0.9333, "angle": -246.72 },
+			{ "time": 1.0666, "angle": -307.13 },
+			{ "time": 1.1666, "angle": 37.15 },
+			{ "time": 1.3666, "angle": 43.82 }
+		],
+		"translate": [
+			{ "time": 0, "x": -7.84, "y": 7.19, "curve": "stepped" },
+			{ "time": 0.9333, "x": -7.84, "y": 7.19, "curve": "stepped" },
+			{ "time": 1.3666, "x": -7.84, "y": 7.19 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"right arm": {
+		"rotate": [
+			{ "time": 0, "angle": -4.02 },
+			{ "time": 0.6, "angle": 17.5 },
+			{ "time": 0.9333, "angle": -4.02 },
+			{ "time": 1.1666, "angle": -16.72 },
+			{ "time": 1.3666, "angle": -4.02 }
+		],
+		"translate": [
+			{ "time": 0, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 0.9333, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 1.3666, "x": 0, "y": 0 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"right hand": {
+		"rotate": [
+			{ "time": 0, "angle": 22.92, "curve": "stepped" },
+			{ "time": 0.9333, "angle": 22.92, "curve": "stepped" },
+			{ "time": 1.3666, "angle": 22.92 }
+		],
+		"translate": [
+			{ "time": 0, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 0.9333, "x": 0, "y": 0, "curve": "stepped" },
+			{ "time": 1.3666, "x": 0, "y": 0 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 0.9333, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	},
+	"root": {
+		"rotate": [
+			{ "time": 0, "angle": 0 },
+			{ "time": 0.4333, "angle": -14.52 },
+			{ "time": 0.8, "angle": 9.86 },
+			{ "time": 1.3666, "angle": 0 }
+		],
+		"scale": [
+			{ "time": 0, "x": 1, "y": 1, "curve": "stepped" },
+			{ "time": 1.3666, "x": 1, "y": 1 }
+		]
+	}
+}
+}

spine-sfml/example/main.cpp

@@ -29,44 +29,57 @@
 
 using namespace std;
 using namespace spine;
-
+#include <stdio.h>
 int main () {
+	// Load atlas, skeleton, and animations.
 	Atlas* atlas = Atlas_readAtlasFile("../data/spineboy.atlas");
 	SkeletonJson* json = SkeletonJson_create(atlas);
 	SkeletonData *skeletonData = SkeletonJson_readSkeletonDataFile(json, "../data/spineboy-skeleton.json");
-	Animation* animation = SkeletonJson_readAnimationFile(json, "../data/spineboy-walk.json", skeletonData);
+	Animation* walkAnimation = SkeletonJson_readAnimationFile(json, "../data/spineboy-walk.json", skeletonData);
+	Animation* jumpAnimation = SkeletonJson_readAnimationFile(json, "../data/spineboy-jump.json", skeletonData);
 	SkeletonJson_dispose(json);
 
-	SkeletonDrawable* drawable = new SkeletonDrawable(skeletonData);
+	// Configure mixing.
+	AnimationStateData* stateData = AnimationStateData_create();
+	AnimationStateData_setMix(stateData, walkAnimation, jumpAnimation, 0.4f);
+	AnimationStateData_setMix(stateData, jumpAnimation, walkAnimation, 0.4f);
+
+	SkeletonDrawable* drawable = new SkeletonDrawable(skeletonData, stateData);
+	drawable->timeScale = 0.5f;
 	Skeleton* skeleton = drawable->skeleton;
 	skeleton->flipX = false;
 	skeleton->flipY = false;
 	Skeleton_setToBindPose(skeleton);
 	Skeleton_getRootBone(skeleton)->x = 320;
 	Skeleton_getRootBone(skeleton)->y = 420;
-	Skeleton_updateWorldTransform(skeleton);
+	AnimationState_setAnimation(drawable->state, walkAnimation, true);
 
 	sf::RenderWindow window(sf::VideoMode(640, 480), "Spine SFML");
 	window.setFramerateLimit(60);
 	sf::Event event;
 	sf::Clock deltaClock;
-	float animationTime = 0;
 	while (window.isOpen()) {
 		while (window.pollEvent(event))
 			if (event.type == sf::Event::Closed) window.close();
-		window.clear();
-		window.draw(*drawable);
-		window.display();
 
 		float delta = deltaClock.getElapsedTime().asSeconds();
 		deltaClock.restart();
-		animationTime += delta;
 
-		Animation_apply(animation, skeleton, animationTime, true);
-		Skeleton_updateWorldTransform(skeleton);
+		if (drawable->state->animation == walkAnimation) {
+			if (drawable->state->time > 2) AnimationState_setAnimation(drawable->state, jumpAnimation, false);
+		} else {
+			if (drawable->state->time > 1) AnimationState_setAnimation(drawable->state, walkAnimation, true);
+		}
+
+		drawable->update(delta);
+
+		window.clear();
+		window.draw(*drawable);
+		window.display();
 	}
 
-	Animation_dispose(animation);
+	Animation_dispose(walkAnimation);
+	Animation_dispose(jumpAnimation);
 	SkeletonData_dispose(skeletonData);
 	Atlas_dispose(atlas);
 }

spine-sfml/src/spine/spine-sfml.cpp

@@ -80,17 +80,27 @@ Skeleton* _SfmlSkeleton_create (SkeletonData* data, SkeletonDrawable* drawable)
 	return SUPER(self);
 }
 
-SkeletonDrawable::SkeletonDrawable (SkeletonData* skeletonData) :
+SkeletonDrawable::SkeletonDrawable (SkeletonData* skeletonData, AnimationStateData* stateData) :
+				timeScale(1),
 				vertexArray(new VertexArray(Quads, skeletonData->boneCount * 4)),
 				texture(0) {
 	skeleton = _SfmlSkeleton_create(skeletonData, this);
+	state = AnimationState_create(stateData);
 }
 
 SkeletonDrawable::~SkeletonDrawable () {
 	delete vertexArray;
+	AnimationState_dispose(state);
 	Skeleton_dispose(skeleton);
 }
 
+void SkeletonDrawable::update (float deltaTime) {
+	Skeleton_update(skeleton, deltaTime);
+	AnimationState_update(state, deltaTime * timeScale);
+	AnimationState_apply(state, skeleton);
+	Skeleton_updateWorldTransform(skeleton);
+}
+
 void SkeletonDrawable::draw (RenderTarget& target, RenderStates states) const {
 	vertexArray->clear();
 	for (int i = 0; i < skeleton->slotCount; ++i)

spine-sfml/src/spine/spine-sfml.h

@@ -49,12 +49,16 @@ typedef struct {
 class SkeletonDrawable: public sf::Drawable {
 public:
 	Skeleton* skeleton;
+	AnimationState* state;
+	float timeScale;
 	sf::VertexArray* vertexArray;
 	sf::Texture* texture; // All region attachments must use the same texture.
 
-	SkeletonDrawable (SkeletonData* skeleton);
+	SkeletonDrawable (SkeletonData* skeleton, AnimationStateData* stateData = 0);
 	~SkeletonDrawable ();
 
+	void update (float deltaTime);
+
 	virtual void draw (sf::RenderTarget& target, sf::RenderStates states) const;
 };