//
// Copyright (c) 2009-2010 Mikko Mononen memon@inside.org
//
// 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.
//

#pragma once

#include "Sample.h"
#include "DetourNavMesh.h"
#include "Recast.h"
#include "ChunkyTriMesh.h"

struct LinearAllocator;
struct FastLZCompressor;
struct MeshProcess;
class dtTileCache;

class Sample_TempObstacles : public Sample
{
protected:
	bool m_keepInterResults = false;

	LinearAllocator* m_talloc;
	FastLZCompressor* m_tcomp;
	MeshProcess* m_tmproc;

	dtTileCache* m_tileCache = nullptr;

	float m_cacheBuildTimeMs = 0;
	int m_cacheCompressedSize = 0;
	int m_cacheRawSize = 0;
	int m_cacheLayerCount = 0;
	unsigned int m_cacheBuildMemUsage = 0;

	enum DrawMode
	{
		DRAWMODE_NAVMESH,
		DRAWMODE_NAVMESH_TRANS,
		DRAWMODE_NAVMESH_BVTREE,
		DRAWMODE_NAVMESH_NODES,
		DRAWMODE_NAVMESH_PORTALS,
		DRAWMODE_NAVMESH_INVIS,
		DRAWMODE_MESH,
		DRAWMODE_CACHE_BOUNDS,
		MAX_DRAWMODE
	};
	DrawMode m_drawMode = DRAWMODE_NAVMESH;

	int m_maxTiles = 0;
	int m_maxPolysPerTile = 0;
	float m_tileSize = 48;

public:
	Sample_TempObstacles();
	~Sample_TempObstacles() override;
	Sample_TempObstacles(const Sample_TempObstacles&) = delete;
	Sample_TempObstacles& operator=(const Sample_TempObstacles&) = delete;
	Sample_TempObstacles(const Sample_TempObstacles&&) = delete;
	Sample_TempObstacles& operator=(const Sample_TempObstacles&&) = delete;

	void handleSettings() override;
	void handleTools() override;
	void handleDebugMode() override;
	void handleRender() override;
	void handleRenderOverlay(double* proj, double* model, int* view) override;
	void handleMeshChanged(class InputGeom* geom) override;
	bool handleBuild() override;
	void handleUpdate(const float dt) override;

	void getTilePos(const float* pos, int& tx, int& ty);

	void renderCachedTile(const int tx, const int ty, const int type);
	void renderCachedTileOverlay(const int tx, const int ty, double* proj, double* model, int* view);

	void addTempObstacle(const float* pos);
	void removeTempObstacle(const float* sp, const float* sq);
	void clearAllTempObstacles();

	void saveAll(const char* path);
	void loadAll(const char* path);

private:
	int rasterizeTileLayers(const int tx, const int ty, const rcConfig& cfg, struct TileCacheData* tiles, const int maxTiles);
};