testbed, tests, ui

examples/testbed/tests/point_click.h

@@ -0,0 +1,98 @@
+/*
+* Copyright (c) 2016-2016 Irlan Robson http://www.irlan.net
+*
+* 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.
+*/
+
+#ifndef POINT_CLICK_H
+#define POINT_CLICK_H
+
+class PointClick : public Test
+{
+public:
+	PointClick()
+	{
+		{
+			b3BodyDef bdef;
+			b3Body* ground = m_world.CreateBody(bdef);
+
+			b3MeshShape ms;
+			ms.m_mesh = &m_groundMesh;
+
+			b3ShapeDef sd;
+			sd.shape = &ms;
+			
+			ground->CreateShape(sd);
+		}
+
+		{
+			b3BodyDef bdef;
+			bdef.type = b3BodyType::e_dynamicBody;
+			bdef.fixedRotationY = true;
+			bdef.position.Set(0.0f, 5.0f, 0.0f);
+			
+			m_character = m_world.CreateBody(bdef);
+
+			b3CapsuleShape cap;
+			cap.m_centers[0].Set(0.0f, 1.0f, 0.0f);
+			cap.m_centers[1].Set(0.0f, -1.0f, 0.0f);
+			cap.m_radius = 1.0f;
+
+			b3ShapeDef sdef;
+			sdef.shape = ∩
+			sdef.density = 1.0f;
+			sdef.friction = 0.5f;
+
+			m_character->CreateShape(sdef);
+		}
+	}
+
+	void BeginDragging()
+	{
+		if (m_bodyDragger.GetBody() == m_character)
+		{
+			m_bodyDragger.StopDragging();
+		}
+	}
+
+	void Step()
+	{
+		if (m_bodyDragger.IsSelected())
+		{
+			if (m_bodyDragger.GetBody() != m_character)
+			{
+				b3Vec3 p1 = m_character->GetPosition();
+				b3Vec3 p2 = m_bodyDragger.GetPointA();
+				
+				b3Vec3 n = b3Normalize(p2 - p1);
+				const float32 k = 1000.0f;
+				b3Vec3 f = k * n;
+
+				m_character->ApplyForceToCenter(f, true);
+			}
+		}
+
+		Test::Step();
+	}
+
+	static Test* Create()
+	{
+		return new PointClick();
+	}
+
+	b3Body* m_character;
+};
+
+#endif