mir_server/Gateway/common/gameMap/game_map.cc

#include <stdio.h>
#include "os_def.h"
#include "_ast.h"

#include <zlib.h>
#include "stream.h"
#include "zstream.h"
#include "game_map.h"

#include "memory/base_allocator.hpp"

#ifndef _MSC_VER
#include <arpa/inet.h>
#endif

using namespace stream;
using namespace zstream;

BaseAllocator GameMap::mapAlloc_("mapAlloc");

GameMap::GameMap()
{
	width_ = 0;
	height_ = 0;
	moveable_index_ = NULL;
	moveable_ount_ = 0;
}

GameMap::~GameMap()
{
	if (moveable_index_)
		mapAlloc_.FreeBuffer(moveable_index_);
}


bool GameMap::LoadFromStream(BaseStream& stream, bool newver)
{
	MAPFILE_HEADER hdr;
	MAPGrid* map_grid, *grid_ptr;

	MAPFILE_HEADER_NEW hdr_n;
	MAPGrid_NEW* map_grid_n, *grid_ptr_n;

	if (!newver)
	{
		//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ͷ
		if (stream.read(&hdr, sizeof(hdr)) != sizeof(hdr))
			return false;

		if (hdr.version_ != MapFileVersion_Current)
			return false;
	}

	//<2F><>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݶζ<DDB6>ȡ<EFBFBD><C8A1><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>
	MemoryStream ms(NULL);
	if (newver)
		ms.copyFrom(stream, stream.getSize());
	else
		ms.copyFrom(stream, hdr.data_size_);

	ms.setPosition(0);

	//<2F><><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	ZDecompressionStream deStream(ms, NULL);
	
	if (newver)
	{
		//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ͷ
		if (deStream.read(&hdr_n, sizeof(hdr_n)) != sizeof(hdr_n))
			return false;
		// <20><>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>մ<EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		hdr_n.width_ = ntohl(hdr_n.width_);
		hdr_n.height_ = ntohl(hdr_n.height_);
	}

	int max = 0;
	if (newver)
	{
		size_t grid_count = sizeof(MAPGrid_NEW) * hdr_n.width_ * hdr_n.height_;

		grid_ptr_n = map_grid_n = (MAPGrid_NEW*)mapAlloc_.AllocBuffer(grid_count);

		if (grid_count != (const size_t)deStream.read(map_grid_n, (const int)grid_count))
			return false;

		max = hdr_n.width_ * hdr_n.height_;
	}
	else
	{
		size_t grid_count = sizeof(MAPGrid) * hdr.width_ * hdr.height_;

		grid_ptr = map_grid = (MAPGrid*)mapAlloc_.AllocBuffer(grid_count);

		if (grid_count != (const size_t)deStream.read(map_grid, (const int)grid_count))
			return false;

		max = hdr.width_ * hdr.height_;
	}

	moveable_ount_ = 0;
	int* index_ptr = moveable_index_ = (int*)mapAlloc_.ReAllocBuffer(moveable_index_, max * sizeof(*index_ptr));
	memset(index_ptr, -1, max * sizeof(*index_ptr));		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>memset<65><74><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC>߶<EFBFBD><DFB6><EFBFBD><EFBFBD><EFBFBD>
	if (newver)
	{
		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD>ɰ汾<C9B0>IJ<EFBFBD>һ<EFBFBD><D2BB>
		for (int i = 0; i < max; ++i)
		{
			if (grid_ptr_n->flag_ != gfBlock /*&& grid_ptr_n->flag_ != gfNofly*/)//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD>ߵ<EFBFBD>,<2C><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>߾<EFBFBD><DFBE><EFBFBD><EFBFBD><EFBFBD>
			{
				int x = i / hdr_n.height_;
				int y = i % hdr_n.height_;

				(*(index_ptr + (y * hdr_n.width_ + x))) = moveable_ount_;
				moveable_ount_++;
			}

			//index_ptr++;
			grid_ptr_n++;
		}

		width_ = hdr_n.width_;
		height_ = hdr_n.height_;

		mapAlloc_.FreeBuffer(map_grid_n);
	}
	else
	{
		for (int i = 0; i < max; ++i)
		{
			if ((grid_ptr->flag_ & MAPFLAG_MOVEABLE) != 0)
			{
				(*index_ptr) = moveable_ount_;
				moveable_ount_++;
			}

			index_ptr++;
			grid_ptr++;
		}
		width_ = hdr.width_;
		height_ = hdr.height_;

		mapAlloc_.FreeBuffer(map_grid);
	}

	return true;
}

bool GameMap::LoadFromFile(const char* fn, bool newver)
{
	FileStream fs(fn, FileStream::faRead || FileStream::faShareRead, NULL);
	return LoadFromStream(fs, newver);
}

void GameMap::initDefault(unsigned int w, unsigned int h)
{
	// <20>ض<EFBFBD><D8B6>ط<EFBFBD><D8B7>Ż<EFBFBD><C5BB>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>óɿ<C3B3><C9BF><EFBFBD><EFBFBD>߶<EFBFBD>
	//<2F><><EFBFBD>ɳ<EFBFBD><C9B3><EFBFBD><EFBFBD>Ҷȵ<D2B6>ͼ
	int max = w * h;

	moveable_ount_ = 0;
	int* index_ptr = moveable_index_ = (int*)mapAlloc_.ReAllocBuffer(moveable_index_, max * sizeof(*index_ptr));

	for (int i = 0; i < max; ++i)
	{
		(*index_ptr) = moveable_ount_;
		moveable_ount_++;
		index_ptr++;
	}

	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC>߶<EFBFBD><DFB6><EFBFBD><EFBFBD><EFBFBD>
	width_ = w;
	height_ = h;
}