Added Box2D

external/Box2D-2.3.1/Contributions/Platforms/TestBed.Net/Test.cs

@@ -0,0 +1,179 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Box2D.Net;
+using Tao.OpenGl;
+
+namespace TestBed.Net
+{
+    public class Test
+    {
+        public World world;
+        public MouseJoint mouseJoint;
+        public Body bomb;
+        public float Zoom = 20;
+        public Vector ViewOffset = new Vector();
+        public Vector Mouse = null;
+
+        public Test()
+        {
+            AABB worldAABB = new AABB(new Vector(-100.0f, -100.0f), new Vector(100.0f, 200.0f));
+            Vector gravity = new Vector(0, -10);
+            bool doSleep = true;
+            world = new World(worldAABB, gravity, doSleep);
+            
+            //m_textLine = 30;
+            //
+            //m_listener.test = this;
+            //m_world->SetListener(&m_listener);
+        }
+
+        public void Step(Settings settings)
+        {
+            if(settings.Pause)
+                return;
+
+            float timeStep = settings.Hz > 0 ? 1.0f / settings.Hz : 0;
+
+            World.WarmStarting = settings.WarmStarting;
+            World.PositionCorrection = settings.PositionCorrection;
+	        
+            world.Step(timeStep, settings.IterationCount);
+
+            //m_world->m_broadPhase->Validate();            
+        }
+
+        Vector RelativeToWorld(Vector Relative)
+        {
+            Vector working = Relative;
+            working *= Zoom;
+            working -= ViewOffset;
+            return working;
+        }
+
+        /// <summary>
+        /// Handles what happens when a user clicks the mouse
+        /// </summary>
+        /// <param name="p">
+        /// The position of the mouse click in relative coordinates.
+        /// </param>
+        public void MouseDown(Vector point)
+        {
+            Vector p = RelativeToWorld(point);
+
+            if (mouseJoint != null)
+                throw new Exception("ASSERT: mouseJoint should be null");
+
+            // Make a small box.
+            Vector d = new Vector(.001f, .001f);
+            AABB aabb = new AABB(p - d, p + d);
+
+            // Query the world for overlapping shapes.
+            IList<Shape> shapes = world.Query(aabb);
+            Body body = null;
+            foreach (Shape shape in shapes)
+            {
+                if (shape.Body.Static == false &&
+                    shape.TestPoint(shape.Body.GetXForm(), p))
+                {
+                    body = shape.Body;
+                    break;
+                }
+            }
+
+            if (body != null)
+            {
+                MouseJointDef md = new MouseJointDef();
+                md.Body1 = world.GetGroundBody();
+                md.Body2 = body;
+                md.Target = p;
+                md.MaxForce = 1000 * body.Mass;
+                mouseJoint = new MouseJoint(world.CreateJoint(md));
+                body.WakeUp();
+            }
+        }
+
+        public void MouseUp(Vector point)
+        {
+            Vector p = RelativeToWorld(point);
+
+            if (mouseJoint != null)
+            {
+                world.DestroyJoint(mouseJoint);
+                mouseJoint = null;
+            }
+        }
+
+        public void MouseMove(Vector point)
+        {
+            Vector p = RelativeToWorld(point);
+
+            if (mouseJoint != null)
+                mouseJoint.SetTarget(p);
+        }
+
+        public void KeyPress(System.Windows.Forms.Keys key)
+        {
+            switch (key)
+            {
+                case System.Windows.Forms.Keys.Space:
+                    LaunchBomb();
+                    break;
+                
+                case System.Windows.Forms.Keys.Left:
+                    ViewOffset.X -= 1;
+                    break;
+
+                case System.Windows.Forms.Keys.Right:
+                    ViewOffset.X += 1;
+                    break;
+
+                case System.Windows.Forms.Keys.Up:
+                    ViewOffset.Y += 1;
+                    break;
+
+                case System.Windows.Forms.Keys.Down:
+                    ViewOffset.Y -= 1;
+                    break;
+
+                case System.Windows.Forms.Keys.X:
+                    Zoom -= 1;
+                    break;
+
+                case System.Windows.Forms.Keys.Z:
+                    Zoom += 1;
+                    break;                    
+            }
+        }
+
+        void LaunchBomb()
+        {
+	        if (bomb != null)
+	        {
+                world.DestroyBody(bomb);
+                bomb = null;
+	        }
+
+            BodyDef bd = new BodyDef();
+	        bd.BodyType = BodyType.e_dynamicBody;
+	        bd.AllowSleep = true;
+            Random rand = new Random();
+            bd.Position = new Vector((float)rand.NextDouble() * 30 - 15, 30.0f);
+	        bd.IsBullet = true;
+            bomb = world.CreateBody(bd);
+	        bomb.LinearVelocity = bd.Position * -5;
+
+            CircleDef sd = new CircleDef();
+	        sd.Radius = 0.3f;
+	        sd.Density = 20.0f;
+	        sd.Restitution = 0.1f;
+            bomb.CreateShape(sd);
+            bomb.SetMassFromShapes();
+        }
+
+        public override string ToString()
+        {
+            return GetType().Name;
+        }
+    };
+}