urho3d/Source/Engine/Urho2D/CollisionPolygon2D.h

//
// Copyright (c) 2008-2014 the Urho3D project.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

#pragma once

#include "CollisionShape2D.h"

namespace Urho3D
{

/// 2D polygon collision component.
class URHO3D_API CollisionPolygon2D : public CollisionShape2D
{
    OBJECT(CollisionPolygon2D);

public:
    /// Construct.
    CollisionPolygon2D(Context* scontext);
    /// Destruct.
    virtual ~CollisionPolygon2D();
    /// Register object factory.
    static void RegisterObject(Context* context);

    /// Set vertex count.
    void SetVertexCount(unsigned count);
    /// Set vertex.
    void SetVertex(unsigned index, const Vector2& vertex);
    /// Set vertices.
    void SetVertices(const PODVector<Vector2>& vertices);

    /// Return vertex count.
    unsigned GetVertexCount() const { return vertices_.Size(); }
    /// Return vertex.
    const Vector2& GetVertex(unsigned index) const { return (index < vertices_.Size()) ? vertices_[index] : Vector2::ZERO; }
    /// Return vertices.
    const PODVector<Vector2>& GetVertices() const { return vertices_; }

private:
    /// Apply node world scale.
    virtual void ApplyNodeWorldScale();
    /// Recreate fixture.
    void RecreateFixture();

    /// Polygon shape.
    b2PolygonShape polygonShape_;
    /// Vertices.
    PODVector<Vector2> vertices_;
};

}