#ifndef POLY_SHAPES_H
#define POLY_SHAPES_H


class PolyShapesCallback : public b2QueryCallback
{
public:

	enum
	{
		e_maxCount = 4
	};

	PolyShapesCallback()
	{
		m_count = 0;
	}

	void DrawFixture(b2Fixture* fixture)
	{
		b2Color color(0.95f, 0.95f, 0.6f);
}


	bool ReportFixture(b2Fixture* fixture)
	{
		if (m_count == e_maxCount)
		{
			return false;
		}

		b2Body* body = fixture->GetBody();
		b2Shape* shape = fixture->GetShape();

		bool overlap = b2TestOverlap(shape, 0, &m_circle, 0, body->GetTransform(), m_transform);

		if (overlap)
		{
			DrawFixture(fixture);
			++m_count;
		}

		return true;
	}

	b2CircleShape m_circle;
	b2Transform m_transform;
	b2Draw* m_debugDraw;
	int32 m_count;
};

class PolyShapes : public Test
{
public:

	enum
	{
		e_maxBodies = 256
	};

	PolyShapes()
	{
		//'ziemia' - podloze
		{
			b2BodyDef bd;
			b2Body* ground = m_world->CreateBody(&bd);

			b2EdgeShape shape;
			shape.Set(b2Vec2(-40.0f, 0.0f), b2Vec2(40.0f, 0.0f));
			ground->CreateFixture(&shape, 0.0f);
		}

        //ksztalty
		{
			b2Vec2 vertices[3];
			vertices[0].Set(-0.5f, 0.0f);
			vertices[1].Set(0.5f, 0.0f);
			vertices[2].Set(0.0f, 1.5f);
			m_polygons[0].Set(vertices, 3);
		}

		{
			b2Vec2 vertices[3];
			vertices[0].Set(-0.1f, -1.0f);
			vertices[1].Set(0.1f, -3.0f);
			vertices[2].Set(0.0f, 1.5f);
			m_polygons[1].Set(vertices, 3);
		}

		{
			float32 w = 1.0f;
			float32 b = w / (2.0f + b2Sqrt(2.0f));
			float32 s = b2Sqrt(2.0f) * b;

			b2Vec2 vertices[8];
			vertices[0].Set(1.5f * s, 0.0f);
			vertices[1].Set(1.5f * w, b);
			vertices[2].Set(1.5f * w, b + s);
			vertices[3].Set(1.5f * s, w);
			vertices[4].Set(-1.5f * s, w);
			vertices[5].Set(-1.5f * w, b + s);
			vertices[6].Set(-1.5f * w, b);
			vertices[7].Set(-1.5f * s, 2.0f);

			m_polygons[2].Set(vertices, 8);
		}

		{
			m_polygons[3].SetAsBox(1.0f, 1.0f);
        }

		{
			m_circle.m_radius = 2.5f;
		}




		m_bodyIndex = 0;
		memset(m_bodies, 0, sizeof(m_bodies));
	}

    //glowna funkcja tworzaca ksztalty
	void Create(int32 index)
	{
		if (m_bodies[m_bodyIndex] != NULL)
		{
			m_world->DestroyBody(m_bodies[m_bodyIndex]);
			m_bodies[m_bodyIndex] = NULL;
		}

		b2BodyDef bd;
		bd.type = b2_dynamicBody;

		float32 x = RandomFloat(-2.0f, 2.0f);
		bd.position.Set(x, 10.0f);
		bd.angle = RandomFloat(-b2_pi, b2_pi);

		if (index == 4)
		{
			bd.angularDamping = 0.02f;
		}

		m_bodies[m_bodyIndex] = m_world->CreateBody(&bd);

		if (index < 4)
		{
			b2FixtureDef fd;
			fd.shape = m_polygons + index;
			fd.density = 1.0f;
			fd.friction = 0.3f;
			m_bodies[m_bodyIndex]->CreateFixture(&fd);
		}
		else
		{
			b2FixtureDef fd;
			fd.shape = &m_circle;
			fd.density = 1.0f;
			fd.friction = 0.3f;

			m_bodies[m_bodyIndex]->CreateFixture(&fd);
		}

		m_bodyIndex = (m_bodyIndex + 1) % e_maxBodies;
	}


	void Keyboard(unsigned char key)
	{

        // wybor ksztaltu
		switch (key)
		{
		case '1':
		case '2':
		case '3':
		case '4':
		case '5':

			Create(key - '1');
			break;

		}
	}

	void Step(Settings* settings)
	{
		Test::Step(settings);

		PolyShapesCallback callback;

		callback.m_transform.SetIdentity();
		callback.m_debugDraw = &m_debugDraw;


		m_debugDraw.DrawString(5, m_textLine, "Napisz 1-5 aby uzyskac rozne ksztalty");
		m_textLine += DRAW_STRING_NEW_LINE;

	}

	static Test* Create()
	{
		return new PolyShapes;
	}

	int32 m_bodyIndex;
	b2Body* m_bodies[e_maxBodies];
	b2PolygonShape m_polygons[4];
	b2CircleShape m_circle;
};

#endif