spine-runtimes/spine-libgdx/test/com/esotericsoftware/spine/MixTest.java

/******************************************************************************
 * Spine Runtimes Software License
 * Version 2.1
 * 
 * Copyright (c) 2013, Esoteric Software
 * All rights reserved.
 * 
 * You are granted a perpetual, non-exclusive, non-sublicensable and
 * non-transferable license to install, execute and perform the Spine Runtimes
 * Software (the "Software") solely for internal use. Without the written
 * permission of Esoteric Software (typically granted by licensing Spine), you
 * may not (a) modify, translate, adapt or otherwise create derivative works,
 * improvements of the Software or develop new applications using the Software
 * or (b) remove, delete, alter or obscure any trademarks or any copyright,
 * trademark, patent or other intellectual property or proprietary rights
 * notices on or in the Software, including any copy thereof. Redistributions
 * in binary or source form must include this license and terms.
 * 
 * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL ESOTERIC SOFTARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *****************************************************************************/

package com.esotericsoftware.spine;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.utils.Array;

public class MixTest extends ApplicationAdapter {
	SpriteBatch batch;
	float time;
	Array<Event> events = new Array();

	SkeletonRenderer renderer;
	SkeletonRendererDebug debugRenderer;

	SkeletonData skeletonData;
	Skeleton skeleton;
	Animation walkAnimation;
	Animation jumpAnimation;

	public void create () {
		batch = new SpriteBatch();
		renderer = new SkeletonRenderer();
		renderer.setPremultipliedAlpha(true);
		debugRenderer = new SkeletonRendererDebug();

		final String name = "spineboy/spineboy";

		TextureAtlas atlas = new TextureAtlas(Gdx.files.internal(name + ".atlas"));

		if (true) {
			SkeletonJson json = new SkeletonJson(atlas);
			json.setScale(0.6f);
			skeletonData = json.readSkeletonData(Gdx.files.internal(name + ".json"));
		} else {
			SkeletonBinary binary = new SkeletonBinary(atlas);
			binary.setScale(0.6f);
			skeletonData = binary.readSkeletonData(Gdx.files.internal(name + ".skel"));
		}
		walkAnimation = skeletonData.findAnimation("walk");
		jumpAnimation = skeletonData.findAnimation("jump");

		skeleton = new Skeleton(skeletonData);
		skeleton.updateWorldTransform();
		skeleton.setX(-50);
		skeleton.setY(20);
	}

	public void render () {
		float delta = Gdx.graphics.getDeltaTime() * 0.25f; // Reduced to make mixing easier to see.

		float jump = jumpAnimation.getDuration();
		float beforeJump = 1f;
		float blendIn = 0.2f;
		float blendOut = 0.2f;
		float blendOutStart = beforeJump + jump - blendOut;
		float total = 3.75f;

		time += delta;

		float speed = 180;
		if (time > beforeJump + blendIn && time < blendOutStart) speed = 360;
		skeleton.setX(skeleton.getX() + speed * delta);

		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

		// This shows how to manage state manually. See SimpleTest1 for a higher level API using AnimationState.
		if (time > total) {
			// restart
			time = 0;
			skeleton.setX(-50);
		} else if (time > beforeJump + jump) {
			// just walk after jump
			walkAnimation.apply(skeleton, time, time, true, events);
		} else if (time > blendOutStart) {
			// blend out jump
			walkAnimation.apply(skeleton, time, time, true, events);
			jumpAnimation.mix(skeleton, time - beforeJump, time - beforeJump, false, events, 1 - (time - blendOutStart) / blendOut);
		} else if (time > beforeJump + blendIn) {
			// just jump
			jumpAnimation.apply(skeleton, time - beforeJump, time - beforeJump, false, events);
		} else if (time > beforeJump) {
			// blend in jump
			walkAnimation.apply(skeleton, time, time, true, events);
			jumpAnimation.mix(skeleton, time - beforeJump, time - beforeJump, false, events, (time - beforeJump) / blendIn);
		} else {
			// just walk before jump
			walkAnimation.apply(skeleton, time, time, true, events);
		}

		skeleton.updateWorldTransform();
		skeleton.update(Gdx.graphics.getDeltaTime());

		batch.begin();
		renderer.draw(batch, skeleton);
		batch.end();

		debugRenderer.draw(skeleton);
	}

	public void resize (int width, int height) {
		batch.getProjectionMatrix().setToOrtho2D(0, 0, width, height);
		debugRenderer.getShapeRenderer().setProjectionMatrix(batch.getProjectionMatrix());
	}

	public static void main (String[] args) throws Exception {
		new LwjglApplication(new MixTest());
	}
}