spine-runtimes/spine-libgdx/test/com/esotericsoftware/spine/SimpleTest2.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.esotericsoftware.spine.AnimationState.AnimationStateListener;
import com.esotericsoftware.spine.attachments.BoundingBoxAttachment;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.InputAdapter;
import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.math.Vector3;

public class SimpleTest2 extends ApplicationAdapter {
	OrthographicCamera camera;
	SpriteBatch batch;
	SkeletonRenderer renderer;
	SkeletonRendererDebug debugRenderer;

	TextureAtlas atlas;
	Skeleton skeleton;
	SkeletonBounds bounds;
	AnimationState state;

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

		atlas = new TextureAtlas(Gdx.files.internal("spineboy/spineboy.atlas"));
		SkeletonJson json = new SkeletonJson(atlas); // This loads skeleton JSON data, which is stateless.
		SkeletonData skeletonData = json.readSkeletonData(Gdx.files.internal("spineboy/spineboy.json"));

		skeleton = new Skeleton(skeletonData); // Skeleton holds skeleton state (bone positions, slot attachments, etc).
		skeleton.setX(250);
		skeleton.setY(20);

		bounds = new SkeletonBounds(); // Convenience class to do hit detection with bounding boxes.

		AnimationStateData stateData = new AnimationStateData(skeletonData); // Defines mixing (crossfading) between animations.
		stateData.setMix("walk", "jump", 0.2f);
		stateData.setMix("jump", "walk", 0.4f);
		stateData.setMix("jump", "jump", 0.2f);

		state = new AnimationState(stateData); // Holds the animation state for a skeleton (current animation, time, etc).
		state.addListener(new AnimationStateListener() {
			public void event (int trackIndex, Event event) {
				System.out.println(trackIndex + " event: " + state.getCurrent(trackIndex) + ", " + event.getData().getName());
			}

			public void complete (int trackIndex, int loopCount) {
				System.out.println(trackIndex + " complete: " + state.getCurrent(trackIndex) + ", " + loopCount);
			}

			public void start (int trackIndex) {
				System.out.println(trackIndex + " start: " + state.getCurrent(trackIndex));
			}

			public void end (int trackIndex) {
				System.out.println(trackIndex + " end: " + state.getCurrent(trackIndex));
			}
		});
		state.setAnimation(0, "headPop", true);

		Gdx.input.setInputProcessor(new InputAdapter() {
			final Vector3 point = new Vector3();

			public boolean touchDown (int screenX, int screenY, int pointer, int button) {
				camera.unproject(point.set(screenX, screenY, 0)); // Convert window to world coordinates.
				bounds.update(skeleton, true); // Update SkeletonBounds with current skeleton bounding box positions.
				if (bounds.aabbContainsPoint(point.x, point.y)) { // Check if inside AABB first. This check is fast.
					BoundingBoxAttachment hit = bounds.containsPoint(point.x, point.y); // Check if inside a bounding box.
					if (hit != null) {
						System.out.println("hit: " + hit);
						skeleton.findSlot("head").getColor().set(Color.RED); // Turn head red until touchUp.
					}
				}
				return true;
			}

			public boolean touchUp (int screenX, int screenY, int pointer, int button) {
				skeleton.findSlot("head").getColor().set(Color.WHITE);
				return true;
			}

			public boolean keyDown (int keycode) {
				state.setAnimation(0, "jump", false); // Set animation on track 0 to jump.
				state.addAnimation(0, "walk", true, 0); // Queue walk to play after jump.
				return true;
			}
		});
	}

	public void render () {
		state.update(Gdx.graphics.getDeltaTime()); // Update the animation time.

		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

		state.apply(skeleton); // Poses skeleton using current animations. This sets the bones' local SRT.
		skeleton.updateWorldTransform(); // Uses the bones' local SRT to compute their world SRT.

		// Configure the camera, SpriteBatch, and SkeletonRendererDebug.
		camera.update();
		batch.getProjectionMatrix().set(camera.combined);
		debugRenderer.getShapeRenderer().getProjectionMatrix().set(camera.combined);

		batch.begin();
		renderer.draw(batch, skeleton); // Draw the skeleton images.
		batch.end();

		debugRenderer.draw(skeleton); // Draw debug lines.
	}

	public void resize (int width, int height) {
		camera.setToOrtho(false); // Update camera with new size.
	}

	public void dispose () {
		atlas.dispose();
	}

	public static void main (String[] args) throws Exception {
		new LwjglApplication(new SimpleTest2());
	}
}