1 files changed, 56 insertions, 0 deletions
diff --git a/Box2d/Assets/Program/Box2d/Dynamics/Controllers/ConstantAccelController.cs b/Box2d/Assets/Program/Box2d/Dynamics/Controllers/ConstantAccelController.cs
new file mode 100644
index 0000000..421ca04
--- /dev/null
+++ b/Box2d/Assets/Program/Box2d/Dynamics/Controllers/ConstantAccelController.cs
@@ -0,0 +1,56 @@
+/*
+* Copyright (c) 2006-2007 Erin Catto http://www.gphysics.com
+*
+* 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 Box2DX.Common;
+
+namespace Box2DX.Dynamics.Controllers
+{
+
+    /// This class is used to build constant acceleration controllers
+    public class ConstantAccelControllerDef
+    {
+        /// <summary>
+        /// The force to apply
+        /// </summary>
+        public Vec2 A;
+    }
+
+    public class ConstantAccelController : Controller
+    {
+        /// <summary>
+        /// The force to apply
+        /// </summary>
+        public Vec2 A;
+
+        public ConstantAccelController(ConstantAccelControllerDef def)
+        {
+            A = def.A;
+        }
+
+        public override void Step(TimeStep step)
+        {
+            for (ControllerEdge i = _bodyList; i != null; i = i.nextBody)
+            {
+                Body body = i.body;
+                if (body.IsSleeping())
+                    continue;
+                body.SetLinearVelocity(body.GetLinearVelocity() + step.Dt * A);
+            }
+        }
+    }
+}