Package org.jbox2d.pooling.normal

Source Code of org.jbox2d.pooling.normal.DefaultWorldPool

/*******************************************************************************
* Copyright (c) 2013, Daniel Murphy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*   * Redistributions of source code must retain the above copyright notice,
*     this list of conditions and the following disclaimer.
*   * Redistributions in binary form must reproduce the above copyright notice,
*     this list of conditions and the following disclaimer in the documentation
*     and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
******************************************************************************/
/**
* Created at 3:26:14 AM Jan 11, 2011
*/

package org.jbox2d.pooling.normal;

import java.util.HashMap;

import org.jbox2d.collision.AABB;
import org.jbox2d.collision.Collision;
import org.jbox2d.collision.Distance;
import org.jbox2d.collision.TimeOfImpact;
import org.jbox2d.common.Mat22;
import org.jbox2d.common.Mat33;
import org.jbox2d.common.Rot;
import org.jbox2d.common.Settings;
import org.jbox2d.common.Vec2;
import org.jbox2d.common.Vec3;
import org.jbox2d.dynamics.contacts.ChainAndCircleContact;
import org.jbox2d.dynamics.contacts.ChainAndPolygonContact;
import org.jbox2d.dynamics.contacts.CircleContact;
import org.jbox2d.dynamics.contacts.Contact;
import org.jbox2d.dynamics.contacts.EdgeAndCircleContact;
import org.jbox2d.dynamics.contacts.EdgeAndPolygonContact;
import org.jbox2d.dynamics.contacts.PolygonAndCircleContact;
import org.jbox2d.dynamics.contacts.PolygonContact;
import org.jbox2d.pooling.IDynamicStack;
import org.jbox2d.pooling.IWorldPool;

/** Provides object pooling for all objects used in the engine. Objects retrieved from here should only be used temporarily, and
* then pushed back (with the exception of arrays).
*
* @author Daniel Murphy */
public class DefaultWorldPool implements IWorldPool {

  private final OrderedStack<Vec2> vecs;
  private final OrderedStack<Vec3> vec3s;
  private final OrderedStack<Mat22> mats;
  private final OrderedStack<Mat33> mat33s;
  private final OrderedStack<AABB> aabbs;
  private final OrderedStack<Rot> rots;

  private final HashMap<Integer, float[]> afloats = new HashMap<Integer, float[]>();
  private final HashMap<Integer, int[]> aints = new HashMap<Integer, int[]>();
  private final HashMap<Integer, Vec2[]> avecs = new HashMap<Integer, Vec2[]>();

  private final IWorldPool world = this;

  private final MutableStack<Contact> pcstack = new MutableStack<Contact>(Settings.CONTACT_STACK_INIT_SIZE) {
    protected Contact newInstance () {
      return new PolygonContact(world);
    }
  };

  private final MutableStack<Contact> ccstack = new MutableStack<Contact>(Settings.CONTACT_STACK_INIT_SIZE) {
    protected Contact newInstance () {
      return new CircleContact(world);
    }
  };

  private final MutableStack<Contact> cpstack = new MutableStack<Contact>(Settings.CONTACT_STACK_INIT_SIZE) {
    protected Contact newInstance () {
      return new PolygonAndCircleContact(world);
    }
  };

  private final MutableStack<Contact> ecstack = new MutableStack<Contact>(Settings.CONTACT_STACK_INIT_SIZE) {
    protected Contact newInstance () {
      return new EdgeAndCircleContact(world);
    }
  };

  private final MutableStack<Contact> epstack = new MutableStack<Contact>(Settings.CONTACT_STACK_INIT_SIZE) {
    protected Contact newInstance () {
      return new EdgeAndPolygonContact(world);
    }
  };

  private final MutableStack<Contact> chcstack = new MutableStack<Contact>(Settings.CONTACT_STACK_INIT_SIZE) {
    protected Contact newInstance () {
      return new ChainAndCircleContact(world);
    }
  };

  private final MutableStack<Contact> chpstack = new MutableStack<Contact>(Settings.CONTACT_STACK_INIT_SIZE) {
    protected Contact newInstance () {
      return new ChainAndPolygonContact(world);
    }
  };

  private final Collision collision;
  private final TimeOfImpact toi;
  private final Distance dist;

  public DefaultWorldPool (int argSize, int argContainerSize) {
    vecs = new OrderedStack<Vec2>(argSize, argContainerSize) {
      protected Vec2 newInstance () {
        return new Vec2();
      }
    };
    vec3s = new OrderedStack<Vec3>(argSize, argContainerSize) {
      protected Vec3 newInstance () {
        return new Vec3();
      }
    };
    mats = new OrderedStack<Mat22>(argSize, argContainerSize) {
      protected Mat22 newInstance () {
        return new Mat22();
      }
    };
    aabbs = new OrderedStack<AABB>(argSize, argContainerSize) {
      protected AABB newInstance () {
        return new AABB();
      }
    };
    rots = new OrderedStack<Rot>(argSize, argContainerSize) {
      protected Rot newInstance () {
        return new Rot();
      }
    };
    mat33s = new OrderedStack<Mat33>(argSize, argContainerSize) {
      protected Mat33 newInstance () {
        return new Mat33();
      }
    };

    dist = new Distance();
    collision = new Collision(this);
    toi = new TimeOfImpact(this);
  }

  public final IDynamicStack<Contact> getPolyContactStack () {
    return pcstack;
  }

  public final IDynamicStack<Contact> getCircleContactStack () {
    return ccstack;
  }

  public final IDynamicStack<Contact> getPolyCircleContactStack () {
    return cpstack;
  }

  @Override
  public IDynamicStack<Contact> getEdgeCircleContactStack () {
    return ecstack;
  }

  @Override
  public IDynamicStack<Contact> getEdgePolyContactStack () {
    return epstack;
  }

  @Override
  public IDynamicStack<Contact> getChainCircleContactStack () {
    return chcstack;
  }

  @Override
  public IDynamicStack<Contact> getChainPolyContactStack () {
    return chpstack;
  }

  public final Vec2 popVec2 () {
    return vecs.pop();
  }

  public final Vec2[] popVec2 (int argNum) {
    return vecs.pop(argNum);
  }

  public final void pushVec2 (int argNum) {
    vecs.push(argNum);
  }

  public final Vec3 popVec3 () {
    return vec3s.pop();
  }

  public final Vec3[] popVec3 (int argNum) {
    return vec3s.pop(argNum);
  }

  public final void pushVec3 (int argNum) {
    vec3s.push(argNum);
  }

  public final Mat22 popMat22 () {
    return mats.pop();
  }

  public final Mat22[] popMat22 (int argNum) {
    return mats.pop(argNum);
  }

  public final void pushMat22 (int argNum) {
    mats.push(argNum);
  }

  public final Mat33 popMat33 () {
    return mat33s.pop();
  }

  public final void pushMat33 (int argNum) {
    mat33s.push(argNum);
  }

  public final AABB popAABB () {
    return aabbs.pop();
  }

  public final AABB[] popAABB (int argNum) {
    return aabbs.pop(argNum);
  }

  public final void pushAABB (int argNum) {
    aabbs.push(argNum);
  }

  public final Rot popRot () {
    return rots.pop();
  }

  public final void pushRot (int num) {
    rots.push(num);
  }

  public final Collision getCollision () {
    return collision;
  }

  public final TimeOfImpact getTimeOfImpact () {
    return toi;
  }

  public final Distance getDistance () {
    return dist;
  }

  public final float[] getFloatArray (int argLength) {
    if (!afloats.containsKey(argLength)) {
      afloats.put(argLength, new float[argLength]);
    }

    assert (afloats.get(argLength).length == argLength) : "Array not built with correct length";
    return afloats.get(argLength);
  }

  public final int[] getIntArray (int argLength) {
    if (!aints.containsKey(argLength)) {
      aints.put(argLength, new int[argLength]);
    }

    assert (aints.get(argLength).length == argLength) : "Array not built with correct length";
    return aints.get(argLength);
  }

  public final Vec2[] getVec2Array (int argLength) {
    if (!avecs.containsKey(argLength)) {
      Vec2[] ray = new Vec2[argLength];
      for (int i = 0; i < argLength; i++) {
        ray[i] = new Vec2();
      }
      avecs.put(argLength, ray);
    }

    assert (avecs.get(argLength).length == argLength) : "Array not built with correct length";
    return avecs.get(argLength);
  }
}
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