// IAEngine: 2D Game Engine by IA
// Copyright (C) 2025 IASoft (PVT) LTD (oss@iasoft.dev)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

#include <IAEngine/Components/TileMapComponent.hpp>
#include <IAEngine/Engine.hpp>

namespace ia::iae
{
    TileMapComponent::TileMapComponent(IN Node2D *node) : TextureComponent(node)
    {
    }

    VOID TileMapComponent::Draw()
    {
        TextureComponent::Draw();
    }

    VOID TileMapComponent::DebugDraw()
    {
        TextureComponent::DebugDraw();
    }

    VOID TileMapComponent::Update()
    {
        TextureComponent::Update();
    }

    VOID TileMapComponent::FixedUpdate()
    {
        TextureComponent::FixedUpdate();
    }

    VOID TileMapComponent::Setup(IN CONST Vector<TileEntryDesc> &tileDescs, IN INT32 tileWidth, IN INT32 tileHeight,
                                 IN INT32 tileCountX, IN INT32 tileCountY)
    {
        Vector<Handle> textures;

        m_tileWidth = tileWidth;
        m_tileHeight = tileHeight;
        m_tileCountX = tileCountX;
        m_tileCountY = tileCountY;

        m_tileEntries.reset();
        m_tileEntries.reserve(tileDescs.size());
        for (const auto &td : tileDescs)
        {
            if (td.TileTexture != INVALID_HANDLE)
                textures.pushBack(td.TileTexture);
            else
            {
                const auto tileSet = (TileSet *) Engine::GetTileSet(td.TileSetName);
                textures.pushBack(tileSet->GetTileTexture(td.TileIndex));
            }
            m_tileEntries.pushBack(TileEntry{.IsWalkable = td.IsWalkable});
        }

        if (m_mapTexture != INVALID_HANDLE)
            Engine::DestroyImage(m_mapTexture);
        m_mapTexture = Engine::CombineImages(textures, m_tileWidth, m_tileHeight, m_tileCountX, m_tileCountY);
        SetTexture(m_mapTexture);
    }

    BOOL TileMapComponent::CanWalkX(IN Vec2 pixelPosition, IN FLOAT32 d)
    {
        const auto p = pixelPosition.x + d;
        return GetTileEntry((INT32)(p/m_tileWidth), (INT32)(pixelPosition.y/m_tileHeight)).IsWalkable;
    }

    BOOL TileMapComponent::CanWalkY(IN Vec2 pixelPosition, IN FLOAT32 d)
    {
        const auto p = pixelPosition.y + d;
        return GetTileEntry((INT32)(pixelPosition.x/m_tileWidth), (INT32)(p/m_tileHeight)).IsWalkable;
    }
} // namespace ia::iae