/*******************************************************************************
 * 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.
 ******************************************************************************/
/*
 * JBox2D - A Java Port of Erin Catto's Box2D
 * 
 * JBox2D homepage: http://jbox2d.sourceforge.net/ 
 * Box2D homepage: http://www.box2d.org
 * 
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 * 
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 * 
 * 1. The origin of this software must not be misrepresented; you must not
 * claim that you wrote the original software. If you use this software
 * in a product, an acknowledgment in the product documentation would be
 * appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 * misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 */
using System;
using SharpBox2D.Collision.Shapes;
using SharpBox2D.Common;
using SharpBox2D.Dynamics;
using SharpBox2D.Dynamics.Joints;
using SharpBox2D.TestBed.Framework;

namespace SharpBox2D.TestBed.Tests
{

    public class BlobTest4 : TestbedTest
    {


        public override float getDefaultCameraScale()
        {
            return 20;
        }


        public override bool isSaveLoadEnabled()
        {
            return true;
        }


        public override void initTest(bool deserialized)
        {
            if (deserialized)
            {
                return;
            }

            Body ground = null;
            {
                PolygonShape sd = new PolygonShape();
                sd.setAsBox(50.0f, 0.4f);

                BodyDef bd = new BodyDef();
                bd.position.set(0.0f, 0.0f);
                ground = getWorld().createBody(bd);
                ground.createFixture(sd, 0f);

                sd.setAsBox(0.4f, 50.0f, new Vec2(-10.0f, 0.0f), 0.0f);
                ground.createFixture(sd, 0f);
                sd.setAsBox(0.4f, 50.0f, new Vec2(10.0f, 0.0f), 0.0f);
                ground.createFixture(sd, 0f);
            }

            ConstantVolumeJointDef cvjd = new ConstantVolumeJointDef();

            float cx = 0.0f;
            float cy = 10.0f;
            float rx = 5.0f;
            float ry = 5.0f;
            int nBodies = 20;
            float bodyRadius = 0.5f;
            for (int i = 0; i < nBodies; ++i)
            {
                float angle = MathUtils.map(i, 0, nBodies, 0, 2*3.1415f);
                BodyDef bd = new BodyDef();
                // bd.isBullet = true;
                bd.fixedRotation = true;

                float x = cx + rx*(float) System.Math.Sin(angle);
                float y = cy + ry*(float) System.Math.Cos(angle);
                bd.position.set(new Vec2(x, y));
                bd.type = BodyType.DYNAMIC;
                Body body = getWorld().createBody(bd);

                FixtureDef fd = new FixtureDef();
                CircleShape cd = new CircleShape();
                cd.m_radius = bodyRadius;
                fd.shape = cd;
                fd.density = 1.0f;
                body.createFixture(fd);
                cvjd.addBody(body);
            }

            cvjd.frequencyHz = 10.0f;
            cvjd.dampingRatio = 1.0f;
            cvjd.collideConnected = false;
            getWorld().createJoint(cvjd);

            BodyDef bd2 = new BodyDef();
            bd2.type = BodyType.DYNAMIC;
            PolygonShape psd = new PolygonShape();
            psd.setAsBox(3.0f, 1.5f, new Vec2(cx, cy + 15.0f), 0.0f);
            bd2.position = new Vec2(cx, cy + 15.0f);
            Body fallingBox = getWorld().createBody(bd2);
            fallingBox.createFixture(psd, 1.0f);
        }


        public override Vec2 getDefaultCameraPos()
        {
            return new Vec2(0, 10);
        }


        public override string getTestName()
        {
            return "Blob Joint";
        }
    }
}
