aboutsummaryrefslogtreecommitdiff
path: root/Minecraft.World/MapItem.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'Minecraft.World/MapItem.cpp')
-rw-r--r--Minecraft.World/MapItem.cpp347
1 files changed, 347 insertions, 0 deletions
diff --git a/Minecraft.World/MapItem.cpp b/Minecraft.World/MapItem.cpp
new file mode 100644
index 00000000..abf4fb9a
--- /dev/null
+++ b/Minecraft.World/MapItem.cpp
@@ -0,0 +1,347 @@
+#include "stdafx.h"
+#include "net.minecraft.network.packet.h"
+#include "net.minecraft.world.entity.h"
+#include "net.minecraft.world.entity.player.h"
+#include "net.minecraft.world.level.h"
+#include "net.minecraft.world.level.chunk.h"
+#include "net.minecraft.world.level.dimension.h"
+#include "net.minecraft.world.level.material.h"
+#include "net.minecraft.world.level.saveddata.h"
+#include "net.minecraft.world.level.storage.h"
+#include "net.minecraft.world.level.tile.h"
+#include "net.minecraft.world.item.h"
+#include "MapItem.h"
+#include "net.minecraft.world.inventory.h"
+#include "JavaMath.h"
+
+MapItem::MapItem(int id) : ComplexItem(id)
+{
+ this->setMaxStackSize(1);
+}
+
+shared_ptr<MapItemSavedData> MapItem::getSavedData(short idNum, Level *level)
+{
+ std::wstring id = wstring( L"map_" ) + _toString(idNum);
+ shared_ptr<MapItemSavedData> mapItemSavedData = dynamic_pointer_cast<MapItemSavedData>(level->getSavedData(typeid(MapItemSavedData), id));
+
+ if (mapItemSavedData == NULL)
+ {
+ // 4J Stu - This call comes from ClientConnection, but i don't see why we should be trying to work out
+ // the id again when it's passed as a param. In any case that won't work with the new map setup
+ //int aux = level->getFreeAuxValueFor(L"map");
+ int aux = idNum;
+
+ id = wstring( L"map_" ) + _toString(aux);
+ mapItemSavedData = shared_ptr<MapItemSavedData>( new MapItemSavedData(id) );
+
+ level->setSavedData(id, (shared_ptr<SavedData> ) mapItemSavedData);
+ }
+
+ return mapItemSavedData;
+}
+
+shared_ptr<MapItemSavedData> MapItem::getSavedData(shared_ptr<ItemInstance> itemInstance, Level *level)
+{
+ MemSect(31);
+ std::wstring id = wstring( L"map_" ) + _toString(itemInstance->getAuxValue() );
+ MemSect(0);
+ shared_ptr<MapItemSavedData> mapItemSavedData = dynamic_pointer_cast<MapItemSavedData>( level->getSavedData(typeid(MapItemSavedData), id ) );
+
+ bool newData = false;
+ if (mapItemSavedData == NULL)
+ {
+ // 4J Stu - I don't see why we should be trying to work out the id again when it's passed as a param.
+ // In any case that won't work with the new map setup
+ //itemInstance->setAuxValue(level->getFreeAuxValueFor(L"map"));
+
+ id = wstring( L"map_" ) + _toString(itemInstance->getAuxValue() );
+ mapItemSavedData = shared_ptr<MapItemSavedData>( new MapItemSavedData(id) );
+
+ newData = true;
+ }
+
+ mapItemSavedData->scale = 3;
+#ifndef _LARGE_WORLDS
+ // 4J-PB - for Xbox maps, we'll centre them on the origin of the world, since we can fit the whole world in our map
+ mapItemSavedData->x = 0;
+ mapItemSavedData->z = 0;
+#endif
+
+ if( newData )
+ {
+#ifdef _LARGE_WORLDS
+ int scale = MapItemSavedData::MAP_SIZE * 2 * (1 << mapItemSavedData->scale);
+ mapItemSavedData->x = Math::round((float) level->getLevelData()->getXSpawn() / scale) * scale;
+ mapItemSavedData->z = Math::round(level->getLevelData()->getZSpawn() / scale) * scale;
+#endif
+ mapItemSavedData->dimension = (byte) level->dimension->id;
+
+ mapItemSavedData->setDirty();
+
+ level->setSavedData(id, (shared_ptr<SavedData> ) mapItemSavedData);
+ }
+
+ return mapItemSavedData;
+}
+
+void MapItem::update(Level *level, shared_ptr<Entity> player, shared_ptr<MapItemSavedData> data)
+{
+ if (level->dimension->id != data->dimension)
+ {
+ // Wrong dimension, abort
+ return;
+ }
+
+ int w = MapItem::IMAGE_WIDTH;
+ int h = MapItem::IMAGE_HEIGHT;
+
+ int scale = 1 << data->scale;
+
+ int xo = data->x;
+ int zo = data->z;
+
+ int xp = Mth::floor(player->x - xo) / scale + w / 2;
+ int zp = Mth::floor(player->z - zo) / scale + h / 2;
+
+ int rad = 128 / scale;
+ if (level->dimension->hasCeiling)
+ {
+ rad /= 2;
+ }
+ data->step++;
+
+ for (int x = xp - rad + 1; x < xp + rad; x++)
+ {
+ if ((x & 15) != (data->step & 15)) continue;
+
+ int yd0 = 255;
+ int yd1 = 0;
+
+ double ho = 0;
+ for (int z = zp - rad - 1; z < zp + rad; z++)
+ {
+ if (x < 0 || z < -1 || x >= w || z >= h) continue;
+
+ int xd = x - xp;
+ int zd = z - zp;
+
+ bool ditherBlack = xd * xd + zd * zd > (rad - 2) * (rad - 2);
+
+ int xx = (xo / scale + x - w / 2) * scale;
+ int zz = (zo / scale + z - h / 2) * scale;
+
+ int r = 0;
+ int g = 0;
+ int b = 0;
+
+
+ int count[256];
+ memset( count,0,sizeof(int)*256);
+
+ LevelChunk *lc = level->getChunkAt(xx, zz);
+ if(lc->isEmpty()) continue;
+ int xso = ((xx)) & 15;
+ int zso = ((zz)) & 15;
+ int liquidDepth = 0;
+
+ double hh = 0;
+ if (level->dimension->hasCeiling)
+ {
+ int ss = xx + zz * 231871;
+ ss = ss * ss * 31287121 + ss * 11;
+ if (((ss >> 20) & 1) == 0) count[Tile::dirt_Id] += 10;
+ else count[Tile::rock_Id] += 10;
+ hh = 100;
+ }
+ else
+ {
+ for (int xs = 0; xs < scale; xs++)
+ {
+ for (int zs = 0; zs < scale; zs++)
+ {
+ int yy = lc->getHeightmap(xs + xso, zs + zso) + 1;
+ int t = 0;
+ if (yy > 1)
+ {
+ bool ok = false;
+ do
+ {
+ ok = true;
+ t = lc->getTile(xs + xso, yy - 1, zs + zso);
+ if (t == 0) ok = false;
+ else if (yy > 0 && t > 0 && Tile::tiles[t]->material->color == MaterialColor::none)
+ {
+ ok = false;
+ }
+
+ if (!ok)
+ {
+ yy--;
+ if (yy <= 0) break;
+ t = lc->getTile(xs + xso, yy - 1, zs + zso);
+ }
+
+ } while (yy > 0 && !ok);
+
+ if (yy > 0 && t != 0 && Tile::tiles[t]->material->isLiquid())
+ {
+ int y = yy - 1;
+ int below = 0;
+ do
+ {
+ below = lc->getTile(xs + xso, y--, zs + zso);
+ liquidDepth++;
+ } while (y > 0 && below != 0 && Tile::tiles[below]->material->isLiquid());
+ }
+ }
+ hh += yy / (double) (scale * scale);
+
+ count[t]++;
+ }
+ }
+ }
+ liquidDepth /= scale * scale;
+ r /= scale * scale;
+ g /= scale * scale;
+ b /= scale * scale;
+
+ int best = 0;
+ int tBest = 0;
+ for (int j = 0; j < 256; j++)
+ {
+ if (count[j] > best)
+ {
+ tBest = j;
+ best = count[j];
+ }
+ }
+
+ double diff = ((hh - ho) * 4 / (scale + 4)) + (((x + z) & 1) - 0.5) * 0.4;
+ int br = 1;
+ if (diff > +0.6) br = 2;
+ if (diff < -0.6) br = 0;
+
+ int col = 0;
+ if (tBest > 0)
+ {
+ MaterialColor *mc = Tile::tiles[tBest]->material->color;
+ if (mc == MaterialColor::water)
+ {
+ diff = (liquidDepth * 0.1) + ((x + z) & 1) * 0.2;
+ br = 1;
+ if (diff < 0.5) br = 2;
+ if (diff > 0.9) br = 0;
+ }
+ col = mc->id;
+ }
+
+ ho = hh;
+
+ if (z < 0) continue;
+ if (xd * xd + zd * zd >= rad * rad) continue;
+ if (ditherBlack && ((x + z) & 1) == 0)
+ {
+ continue;
+ }
+ byte oldColor = data->colors[x + z * w];
+ byte newColor = (byte) (col * 4 + br);
+ if (oldColor != newColor)
+ {
+ if (yd0 > z) yd0 = z;
+ if (yd1 < z) yd1 = z;
+ data->colors[x + z * w] = newColor;
+ }
+ }
+ if (yd0 <= yd1)
+ {
+ data->setDirty(x, yd0, yd1);
+ }
+ }
+}
+
+void MapItem::inventoryTick(shared_ptr<ItemInstance> itemInstance, Level *level, shared_ptr<Entity> owner, int slot, bool selected)
+{
+ if (level->isClientSide) return;
+
+ shared_ptr<MapItemSavedData> data = getSavedData(itemInstance, level);
+ if (dynamic_pointer_cast<Player>(owner) != NULL)
+ {
+ shared_ptr<Player> player = dynamic_pointer_cast<Player>(owner);
+
+ // 4J Stu - If the player has a map that belongs to another player, then merge the data over and change this map id to the owners id
+ int ownersAuxValue = level->getAuxValueForMap(player->getXuid(), data->dimension, data->x, data->z, data->scale);
+ if(ownersAuxValue != itemInstance->getAuxValue() )
+ {
+ shared_ptr<MapItemSavedData> ownersData = getSavedData(ownersAuxValue,level);
+
+ ownersData->x = data->x;
+ ownersData->z = data->z;
+ ownersData->scale = data->scale;
+ ownersData->dimension = data->dimension;
+
+ itemInstance->setAuxValue( ownersAuxValue );
+ ownersData->tickCarriedBy(player, itemInstance );
+ ownersData->mergeInMapData(data);
+ player->inventoryMenu->broadcastChanges();
+
+ data = ownersData;
+ }
+ else
+ {
+ data->tickCarriedBy(player, itemInstance);
+ }
+ }
+
+ if (selected)
+ {
+ update(level, owner, data);
+ }
+}
+
+void MapItem::onCraftedBy(shared_ptr<ItemInstance> itemInstance, Level *level, shared_ptr<Player> player)
+{
+ wchar_t buf[64];
+
+ int mapScale = 3;
+#ifdef _LARGE_WORLDS
+ int scale = MapItemSavedData::MAP_SIZE * 2 * (1 << mapScale);
+ int centreXC = (int) (Math::round(player->x / scale) * scale);
+ int centreZC = (int) (Math::round(player->z / scale) * scale);
+#else
+ // 4J-PB - for Xbox maps, we'll centre them on the origin of the world, since we can fit the whole world in our map
+ int centreXC = 0;
+ int centreZC = 0;
+#endif
+
+ itemInstance->setAuxValue(level->getAuxValueForMap(player->getXuid(), player->dimension, centreXC, centreZC, mapScale));
+
+ swprintf(buf,64,L"map_%d", itemInstance->getAuxValue());
+ std::wstring id = wstring(buf);
+
+ shared_ptr<MapItemSavedData> data = getSavedData(itemInstance->getAuxValue(), level);
+ // 4J Stu - We only have one map per player per dimension, so don't reset the one that they have
+ // when a new one is created
+ if( data == NULL )
+ {
+ data = shared_ptr<MapItemSavedData>( new MapItemSavedData(id) );
+ }
+ level->setSavedData(id, (shared_ptr<SavedData> ) data);
+
+ data->scale = mapScale;
+ // 4J-PB - for Xbox maps, we'll centre them on the origin of the world, since we can fit the whole world in our map
+ data->x = centreXC;
+ data->z = centreZC;
+ data->dimension = (byte) level->dimension->id;
+ data->setDirty();
+}
+
+shared_ptr<Packet> MapItem::getUpdatePacket(shared_ptr<ItemInstance> itemInstance, Level *level, shared_ptr<Player> player)
+{
+ charArray data = MapItem::getSavedData(itemInstance, level)->getUpdatePacket(itemInstance, level, player);
+
+ if (data.data == NULL || data.length == 0) return nullptr;
+
+ shared_ptr<Packet> retval = shared_ptr<Packet>(new ComplexItemDataPacket((short) Item::map->id, (short) itemInstance->getAuxValue(), data));
+ delete data.data;
+ return retval;
+}
generated by cgit v1.2.3 (git 2.46.0) at 2026-03-21 22:53:45 +0000