speciallayer.cpp

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/*
 * The ManaPlus Client
 * Copyright (C) 2011-2019 The ManaPlus Developers
 * Copyright (C) 2019-2021 Andrei Karas
 *
 * This file is part of The ManaPlus Client.
 *
 * 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 2 of the License, or
 * 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 <http://www.gnu.org/licenses/>.
 */
 
#include "resources/map/speciallayer.h"
 
#include "const/resources/map/map.h"
 
#include "enums/resources/map/mapitemtype.h"
 
#include "resources/map/mapitem.h"
 
#include "utils/delete2.h"
#include "utils/foreach.h"
 
#include "debug.h"
 
SpecialLayer::SpecialLayer(const std::string &name,
 const int width,
 const int height) :
 MemoryCounter(),
 mName(name),
 mTiles(new MapItem*[width * height]),
 mCache(new int[width * height]),
 mWidth(width),
 mHeight(height)
{
 std::fill_n(mTiles, mWidth * mHeight, static_cast<MapItem*>(nullptr));
 std::fill_n(mCache, mWidth * mHeight, 10000);
}
 
SpecialLayer::~SpecialLayer()
{
 for (int f = 0; f < mWidth * mHeight; f ++)
 delete2(mTiles[f])
 delete [] mTiles;
 delete [] mCache;
}
 
MapItem* SpecialLayer::getTile(const int x, const int y) const
{
 if (x < 0 || x >= mWidth ||
 y < 0 || y >= mHeight)
 {
 return nullptr;
 }
 return mTiles[x + y * mWidth];
}
 
void SpecialLayer::setTile(const int x, const int y, MapItem *const item)
{
 if (x < 0 || x >= mWidth ||
 y < 0 || y >= mHeight)
 {
 return;
 }
 
 const int idx = x + y * mWidth;
 delete mTiles[idx];
 if (item != nullptr)
 item->setPos(x, y);
 mTiles[idx] = item;
}
 
void SpecialLayer::setTile(const int x, const int y, const int type)
{
 if (x < 0 || x >= mWidth ||
 y < 0 || y >= mHeight)
 {
 return;
 }
 
 const int idx = x + y * mWidth;
 MapItem *const tile = mTiles[idx];
 if (tile != nullptr)
 {
 tile->setType(type);
 tile->setPos(x, y);
 }
 else
 {
 mTiles[idx] = new MapItem(type);
 mTiles[idx]->setPos(x, y);
 }
}
 
void SpecialLayer::addRoad(const Path &road)
{
 FOR_EACH (Path::const_iterator, i, road)
 {
 const Position &pos = *i;
 MapItem *const item = getTile(pos.x, pos.y);
 if (item == nullptr)
 setTile(pos.x, pos.y, new MapItem(MapItemType::ROAD));
 else
 item->setType(MapItemType::ROAD);
 }
 updateCache();
}
 
void SpecialLayer::clean()
{
 if (mTiles == nullptr)
 return;
 
 for (int f = 0; f < mWidth * mHeight; f ++)
 {
 MapItem *const item = mTiles[f];
 if (item != nullptr)
 item->setType(MapItemType::EMPTY);
 }
 updateCache();
}
 
void SpecialLayer::draw(Graphics *const graphics, int startX, int startY,
 int endX, int endY,
 const int scrollX, const int scrollY) const
{
 BLOCK_START("SpecialLayer::draw")
 if (startX < 0)
 startX = 0;
 if (startY < 0)
 startY = 0;
 if (endX > mWidth)
 endX = mWidth;
 if (endY > mHeight)
 endY = mHeight;
 
 for (int y = startY; y < endY; y ++)
 {
 const int py = y * mapTileSize - scrollY;
 const int y2 = y * mWidth;
 for (int x = startX; x < endX; x ++)
 {
 const MapItem *const item = mTiles[x + y2];
 if (item != nullptr)
 {
 item->draw(graphics, x * mapTileSize - scrollX, py,
 mapTileSize, mapTileSize);
 }
 }
 }
 BLOCK_END("SpecialLayer::draw")
}
 
int SpecialLayer::calcMemoryLocal() const
{
 return static_cast<int>(sizeof(SpecialLayer) +
 sizeof(MapItem) * mWidth * mHeight);
}
 
void SpecialLayer::updateCache()
{
 for (int y = 0; y < mHeight; y ++)
 {
 const int y2 = y * mWidth;
 for (int x = 0; x < mWidth; x ++)
 {
 int c = 10000;
 for (int f = x + 1; f < mWidth; f ++)
 {
 MapItem *const item = mTiles[f + y2];
 if (item != nullptr &&
 item->mType != MapItemType::EMPTY)
 {
 c = f - x - 1;
 break;
 }
 }
 mCache[x + y2] = c;
 }
 }
}