//
// 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
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

#include "Precompiled.h"
#include "Context.h"
#include "Node.h"
#include "ResourceCache.h"
#include "TileMap2D.h"
#include "TileMapLayer2D.h"
#include "TmxFile2D.h"

#include "DebugNew.h"

namespace Urho3D
{

extern const float PIXEL_SIZE;
extern const char* URHO2D_CATEGORY;

TileMap2D::TileMap2D(Context* context) :
    Component(context)
{
}

TileMap2D::~TileMap2D()
{
}

void TileMap2D::RegisterObject(Context* context)
{
    context->RegisterFactory<TileMap2D>(URHO2D_CATEGORY);

    ACCESSOR_ATTRIBUTE(TileMap2D, VAR_RESOURCEREF, "Tmx File", GetTmxFileAttr, SetTmxFileAttr, ResourceRef, ResourceRef(TmxFile2D::GetTypeStatic()), AM_DEFAULT);
}

void TileMap2D::SetTmxFile(TmxFile2D* tmxFile)
{
    if (tmxFile == tmxFile_)
        return;

    if (tmxFile_)
    {
        for (unsigned i = 0; i < layers_.Size(); ++i)
            layers_[i]->GetNode()->Remove();
        layers_.Clear();
    }

    tmxFile_ = tmxFile;
    
    if (!tmxFile_)
        return;

    unsigned numLayers = tmxFile_->GetNumLayers();
    for (unsigned i = 0; i < numLayers; ++i)
    {
        const TmxLayer2D* tmxLayer = tmxFile_->GetLayer(i);
        SharedPtr<Node> layerNode(GetNode()->CreateChild(tmxLayer->name_, LOCAL));
        layerNode->SetTemporary(true);

        SharedPtr<TileMapLayer2D> tileMapLayer(layerNode->CreateComponent<TileMapLayer2D>());
        tileMapLayer->SetTmxLayer(tmxLayer, i);

        layers_.Push(tileMapLayer);
    }
}

TmxFile2D* TileMap2D::GetTmxFile() const
{
    return tmxFile_;
}

int TileMap2D::GetWidth() const
{
    return tmxFile_ ? tmxFile_->GetWidth() : 0;
}

int TileMap2D::GetHeight() const
{
    return tmxFile_ ? tmxFile_->GetHeight() : 0;

}

int TileMap2D::GetTileWidth() const
{
    return tmxFile_ ? tmxFile_->GetTileWidth() : 0;

}

int TileMap2D::GetTileHeight() const
{
    return tmxFile_ ? tmxFile_->GetTileHeight() : 0;

}
Vector2 TileMap2D::GetSize() const
{
    if (!tmxFile_)
        return Vector2::ZERO;

    return Vector2(tmxFile_->GetWidth() * tmxFile_->GetTileWidth() * PIXEL_SIZE,
        tmxFile_->GetHeight() * tmxFile_->GetTileHeight() * PIXEL_SIZE);
}

Vector2 TileMap2D::GetTileSize() const
{
    if (!tmxFile_)
        return Vector2::ZERO;

    return Vector2(tmxFile_->GetTileWidth() * PIXEL_SIZE, tmxFile_->GetTileHeight() * PIXEL_SIZE);
}

TileMapLayer2D* TileMap2D::GetLayer(unsigned index) const
{
    if (index >= layers_.Size())
        return 0;

    return layers_[index];
}

void TileMap2D::SetTmxFileAttr(ResourceRef value)
{
    ResourceCache* cache = GetSubsystem<ResourceCache>();
    SetTmxFile(cache->GetResource<TmxFile2D>(value.name_));
}

ResourceRef TileMap2D::GetTmxFileAttr() const
{
    return GetResourceRef(tmxFile_, TmxFile2D::GetTypeStatic());
}

}