Package com.esotericsoftware.spine

Source Code of com.esotericsoftware.spine.SkeletonRenderer

/******************************************************************************
* 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.attachments.Attachment;
import com.esotericsoftware.spine.attachments.MeshAttachment;
import com.esotericsoftware.spine.attachments.RegionAttachment;
import com.esotericsoftware.spine.attachments.SkeletonAttachment;
import com.esotericsoftware.spine.attachments.SkinnedMeshAttachment;

import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.PolygonSpriteBatch;
import com.badlogic.gdx.utils.Array;

public class SkeletonRenderer {
  static private final short[] quadTriangles = {0, 1, 2, 2, 3, 0};

  private boolean premultipliedAlpha;

  @SuppressWarnings("null")
  public void draw (PolygonSpriteBatch batch, Skeleton skeleton) {
    boolean premultipliedAlpha = this.premultipliedAlpha;
    int srcFunc = premultipliedAlpha ? GL20.GL_ONE : GL20.GL_SRC_ALPHA;
    batch.setBlendFunction(srcFunc, GL20.GL_ONE_MINUS_SRC_ALPHA);

    boolean additive = false;

    float[] vertices = null;
    short[] triangles = null;
    Array<Slot> drawOrder = skeleton.drawOrder;
    for (int i = 0, n = drawOrder.size; i < n; i++) {
      Slot slot = drawOrder.get(i);
      Attachment attachment = slot.attachment;
      Texture texture = null;
      if (attachment instanceof RegionAttachment) {
        RegionAttachment region = (RegionAttachment)attachment;
        region.updateWorldVertices(slot, premultipliedAlpha);
        vertices = region.getWorldVertices();
        triangles = quadTriangles;
        texture = region.getRegion().getTexture();

      } else if (attachment instanceof MeshAttachment) {
        MeshAttachment mesh = (MeshAttachment)attachment;
        mesh.updateWorldVertices(slot, true);
        vertices = mesh.getWorldVertices();
        triangles = mesh.getTriangles();
        texture = mesh.getRegion().getTexture();

      } else if (attachment instanceof SkinnedMeshAttachment) {
        SkinnedMeshAttachment mesh = (SkinnedMeshAttachment)attachment;
        mesh.updateWorldVertices(slot, true);
        vertices = mesh.getWorldVertices();
        triangles = mesh.getTriangles();
        texture = mesh.getRegion().getTexture();

      } else if (attachment instanceof SkeletonAttachment) {
        Skeleton attachmentSkeleton = ((SkeletonAttachment)attachment).getSkeleton();
        if (attachmentSkeleton == null) continue;
        Bone bone = slot.getBone();
        Bone rootBone = attachmentSkeleton.getRootBone();
        float oldScaleX = rootBone.getScaleX();
        float oldScaleY = rootBone.getScaleY();
        float oldRotation = rootBone.getRotation();
        attachmentSkeleton.setPosition(skeleton.getX() + bone.getWorldX(), skeleton.getY() + bone.getWorldY());
        rootBone.setScaleX(1 + bone.getWorldScaleX() - oldScaleX);
        rootBone.setScaleY(1 + bone.getWorldScaleY() - oldScaleY);
        rootBone.setRotation(oldRotation + bone.getWorldRotation());
        attachmentSkeleton.updateWorldTransform();

        draw(batch, attachmentSkeleton);

        attachmentSkeleton.setPosition(0, 0);
        rootBone.setScaleX(oldScaleX);
        rootBone.setScaleY(oldScaleY);
        rootBone.setRotation(oldRotation);
      }

      if (texture != null) {
        if (slot.data.getAdditiveBlending() != additive) {
          additive = !additive;
          if (additive)
            batch.setBlendFunction(srcFunc, GL20.GL_ONE);
          else
            batch.setBlendFunction(srcFunc, GL20.GL_ONE_MINUS_SRC_ALPHA);
        }
        batch.draw(texture, vertices, 0, vertices.length, triangles, 0, triangles.length);
      }
    }
  }

  public void draw (Batch batch, Skeleton skeleton) {
    boolean premultipliedAlpha = this.premultipliedAlpha;
    int srcFunc = premultipliedAlpha ? GL20.GL_ONE : GL20.GL_SRC_ALPHA;
    batch.setBlendFunction(srcFunc, GL20.GL_ONE_MINUS_SRC_ALPHA);

    boolean additive = false;

    Array<Slot> drawOrder = skeleton.drawOrder;
    for (int i = 0, n = drawOrder.size; i < n; i++) {
      Slot slot = drawOrder.get(i);
      Attachment attachment = slot.attachment;
      if (attachment instanceof RegionAttachment) {
        RegionAttachment regionAttachment = (RegionAttachment)attachment;
        regionAttachment.updateWorldVertices(slot, premultipliedAlpha);
        float[] vertices = regionAttachment.getWorldVertices();
        if (slot.data.getAdditiveBlending() != additive) {
          additive = !additive;
          if (additive)
            batch.setBlendFunction(srcFunc, GL20.GL_ONE);
          else
            batch.setBlendFunction(srcFunc, GL20.GL_ONE_MINUS_SRC_ALPHA);
        }
        batch.draw(regionAttachment.getRegion().getTexture(), vertices, 0, 20);
      } else if (attachment instanceof MeshAttachment || attachment instanceof SkinnedMeshAttachment) {
        throw new RuntimeException("PolygonSpriteBatch is required to render meshes.");
      } else if (attachment instanceof SkeletonAttachment) {
        Skeleton attachmentSkeleton = ((SkeletonAttachment)attachment).getSkeleton();
        if (attachmentSkeleton == null) continue;
        Bone bone = slot.getBone();
        Bone rootBone = attachmentSkeleton.getRootBone();
        float oldScaleX = rootBone.getScaleX();
        float oldScaleY = rootBone.getScaleY();
        float oldRotation = rootBone.getRotation();
        attachmentSkeleton.setPosition(skeleton.getX() + bone.getWorldX(), skeleton.getY() + bone.getWorldY());
        rootBone.setScaleX(1 + bone.getWorldScaleX() - oldScaleX);
        rootBone.setScaleY(1 + bone.getWorldScaleY() - oldScaleY);
        rootBone.setRotation(oldRotation + bone.getWorldRotation());
        attachmentSkeleton.updateWorldTransform();

        draw(batch, attachmentSkeleton);

        attachmentSkeleton.setX(0);
        attachmentSkeleton.setY(0);
        rootBone.setScaleX(oldScaleX);
        rootBone.setScaleY(oldScaleY);
        rootBone.setRotation(oldRotation);
      }
    }
  }

  public void setPremultipliedAlpha (boolean premultipliedAlpha) {
    this.premultipliedAlpha = premultipliedAlpha;
  }
}
TOP

Related Classes of com.esotericsoftware.spine.SkeletonRenderer

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.