package net.minecraft.world.storage; import cpw.mods.fml.relauncher.Side; import cpw.mods.fml.relauncher.SideOnly; import java.util.ArrayList; import java.util.HashMap; import java.util.LinkedHashMap; import java.util.List; import java.util.Map; import net.minecraft.entity.player.EntityPlayer; import net.minecraft.item.ItemStack; import net.minecraft.nbt.*; import net.minecraft.world.World; import net.minecraft.world.WorldSavedData; public class MapData extends WorldSavedData { public int xCenter; public int zCenter; public int dimension; public byte scale; /** colours */ public byte[] colors = new byte[16384]; /** * Holds a reference to the MapInfo of the players who own a copy of the map */ public List playersArrayList = new ArrayList(); /** * Holds a reference to the players who own a copy of the map and a reference to their MapInfo */ private Map playersHashMap = new HashMap(); public Map playersVisibleOnMap = new LinkedHashMap(); public MapData(String par1Str) { super(par1Str); } /** * reads in data from the NBTTagCompound into this MapDataBase */ public void readFromNBT(NBTTagCompound par1NBTTagCompound) { NBTBase dimension = par1NBTTagCompound.getTag("dimension"); if (dimension instanceof NBTTagByte) { this.dimension = ((NBTTagByte)dimension).data; } else { this.dimension = ((NBTTagInt)dimension).data; } this.xCenter = par1NBTTagCompound.getInteger("xCenter"); this.zCenter = par1NBTTagCompound.getInteger("zCenter"); this.scale = par1NBTTagCompound.getByte("scale"); if (this.scale < 0) { this.scale = 0; } if (this.scale > 4) { this.scale = 4; } short short1 = par1NBTTagCompound.getShort("width"); short short2 = par1NBTTagCompound.getShort("height"); if (short1 == 128 && short2 == 128) { this.colors = par1NBTTagCompound.getByteArray("colors"); } else { byte[] abyte = par1NBTTagCompound.getByteArray("colors"); this.colors = new byte[16384]; int i = (128 - short1) / 2; int j = (128 - short2) / 2; for (int k = 0; k < short2; ++k) { int l = k + j; if (l >= 0 || l < 128) { for (int i1 = 0; i1 < short1; ++i1) { int j1 = i1 + i; if (j1 >= 0 || j1 < 128) { this.colors[j1 + l * 128] = abyte[i1 + k * short1]; } } } } } } /** * write data to NBTTagCompound from this MapDataBase, similar to Entities and TileEntities */ public void writeToNBT(NBTTagCompound par1NBTTagCompound) { par1NBTTagCompound.setInteger("dimension", this.dimension); par1NBTTagCompound.setInteger("xCenter", this.xCenter); par1NBTTagCompound.setInteger("zCenter", this.zCenter); par1NBTTagCompound.setByte("scale", this.scale); par1NBTTagCompound.setShort("width", (short)128); par1NBTTagCompound.setShort("height", (short)128); par1NBTTagCompound.setByteArray("colors", this.colors); } /** * Adds the player passed to the list of visible players and checks to see which players are visible */ public void updateVisiblePlayers(EntityPlayer par1EntityPlayer, ItemStack par2ItemStack) { if (!this.playersHashMap.containsKey(par1EntityPlayer)) { MapInfo mapinfo = new MapInfo(this, par1EntityPlayer); this.playersHashMap.put(par1EntityPlayer, mapinfo); this.playersArrayList.add(mapinfo); } if (!par1EntityPlayer.inventory.hasItemStack(par2ItemStack)) { this.playersVisibleOnMap.remove(par1EntityPlayer.getCommandSenderName()); } for (int i = 0; i < this.playersArrayList.size(); ++i) { MapInfo mapinfo1 = (MapInfo)this.playersArrayList.get(i); if (!mapinfo1.entityplayerObj.isDead && (mapinfo1.entityplayerObj.inventory.hasItemStack(par2ItemStack) || par2ItemStack.isOnItemFrame())) { if (!par2ItemStack.isOnItemFrame() && mapinfo1.entityplayerObj.dimension == this.dimension) { this.func_82567_a(0, mapinfo1.entityplayerObj.worldObj, mapinfo1.entityplayerObj.getCommandSenderName(), mapinfo1.entityplayerObj.posX, mapinfo1.entityplayerObj.posZ, (double)mapinfo1.entityplayerObj.rotationYaw); } } else { this.playersHashMap.remove(mapinfo1.entityplayerObj); this.playersArrayList.remove(mapinfo1); } } if (par2ItemStack.isOnItemFrame()) { this.func_82567_a(1, par1EntityPlayer.worldObj, "frame-" + par2ItemStack.getItemFrame().entityId, (double)par2ItemStack.getItemFrame().xPosition, (double)par2ItemStack.getItemFrame().zPosition, (double)(par2ItemStack.getItemFrame().hangingDirection * 90)); } } private void func_82567_a(int par1, World par2World, String par3Str, double par4, double par6, double par8) { int j = 1 << this.scale; float f = (float)(par4 - (double)this.xCenter) / (float)j; float f1 = (float)(par6 - (double)this.zCenter) / (float)j; byte b0 = (byte)((int)((double)(f * 2.0F) + 0.5D)); byte b1 = (byte)((int)((double)(f1 * 2.0F) + 0.5D)); byte b2 = 63; byte b3; if (f >= (float)(-b2) && f1 >= (float)(-b2) && f <= (float)b2 && f1 <= (float)b2) { par8 += par8 < 0.0D ? -8.0D : 8.0D; b3 = (byte)((int)(par8 * 16.0D / 360.0D)); if (par2World.provider.shouldMapSpin(par3Str, par4, par6, par8)) { int k = (int)(par2World.getWorldInfo().getWorldTime() / 10L); b3 = (byte)(k * k * 34187121 + k * 121 >> 15 & 15); } } else { if (Math.abs(f) >= 320.0F || Math.abs(f1) >= 320.0F) { this.playersVisibleOnMap.remove(par3Str); return; } par1 = 6; b3 = 0; if (f <= (float)(-b2)) { b0 = (byte)((int)((double)(b2 * 2) + 2.5D)); } if (f1 <= (float)(-b2)) { b1 = (byte)((int)((double)(b2 * 2) + 2.5D)); } if (f >= (float)b2) { b0 = (byte)(b2 * 2 + 1); } if (f1 >= (float)b2) { b1 = (byte)(b2 * 2 + 1); } } this.playersVisibleOnMap.put(par3Str, new MapCoord(this, (byte)par1, b0, b1, b3)); } /** * Get byte array of packet data to send to players on map for updating map data */ public byte[] getUpdatePacketData(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer) { MapInfo mapinfo = (MapInfo)this.playersHashMap.get(par3EntityPlayer); return mapinfo == null ? null : mapinfo.getPlayersOnMap(par1ItemStack); } /** * Marks a vertical range of pixels as being modified so they will be resent to clients. Parameters: X, lowest Y, * highest Y */ public void setColumnDirty(int par1, int par2, int par3) { super.markDirty(); for (int l = 0; l < this.playersArrayList.size(); ++l) { MapInfo mapinfo = (MapInfo)this.playersArrayList.get(l); if (mapinfo.field_76209_b[par1] < 0 || mapinfo.field_76209_b[par1] > par2) { mapinfo.field_76209_b[par1] = par2; } if (mapinfo.field_76210_c[par1] < 0 || mapinfo.field_76210_c[par1] < par3) { mapinfo.field_76210_c[par1] = par3; } } } @SideOnly(Side.CLIENT) /** * Updates the client's map with information from other players in MP */ public void updateMPMapData(byte[] par1ArrayOfByte) { int i; if (par1ArrayOfByte[0] == 0) { i = par1ArrayOfByte[1] & 255; int j = par1ArrayOfByte[2] & 255; for (int k = 0; k < par1ArrayOfByte.length - 3; ++k) { this.colors[(k + j) * 128 + i] = par1ArrayOfByte[k + 3]; } this.markDirty(); } else if (par1ArrayOfByte[0] == 1) { this.playersVisibleOnMap.clear(); for (i = 0; i < (par1ArrayOfByte.length - 1) / 3; ++i) { byte b0 = (byte)(par1ArrayOfByte[i * 3 + 1] >> 4); byte b1 = par1ArrayOfByte[i * 3 + 2]; byte b2 = par1ArrayOfByte[i * 3 + 3]; byte b3 = (byte)(par1ArrayOfByte[i * 3 + 1] & 15); this.playersVisibleOnMap.put("icon-" + i, new MapCoord(this, b0, b1, b2, b3)); } } else if (par1ArrayOfByte[0] == 2) { this.scale = par1ArrayOfByte[1]; } } public MapInfo func_82568_a(EntityPlayer par1EntityPlayer) { MapInfo mapinfo = (MapInfo)this.playersHashMap.get(par1EntityPlayer); if (mapinfo == null) { mapinfo = new MapInfo(this, par1EntityPlayer); this.playersHashMap.put(par1EntityPlayer, mapinfo); this.playersArrayList.add(mapinfo); } return mapinfo; } }