001 package net.minecraft.world.storage; 002 003 import cpw.mods.fml.common.Side; 004 import cpw.mods.fml.common.asm.SideOnly; 005 import java.util.ArrayList; 006 import java.util.HashMap; 007 import java.util.LinkedHashMap; 008 import java.util.List; 009 import java.util.Map; 010 import net.minecraft.entity.player.EntityPlayer; 011 import net.minecraft.item.ItemStack; 012 import net.minecraft.nbt.*; 013 import net.minecraft.world.World; 014 import net.minecraft.world.WorldSavedData; 015 016 public class MapData extends WorldSavedData 017 { 018 public int xCenter; 019 public int zCenter; 020 public int dimension; 021 public byte scale; 022 023 /** colours */ 024 public byte[] colors = new byte[16384]; 025 026 /** 027 * Holds a reference to the MapInfo of the players who own a copy of the map 028 */ 029 public List playersArrayList = new ArrayList(); 030 031 /** 032 * Holds a reference to the players who own a copy of the map and a reference to their MapInfo 033 */ 034 private Map playersHashMap = new HashMap(); 035 public Map playersVisibleOnMap = new LinkedHashMap(); 036 037 public MapData(String par1Str) 038 { 039 super(par1Str); 040 } 041 042 /** 043 * reads in data from the NBTTagCompound into this MapDataBase 044 */ 045 public void readFromNBT(NBTTagCompound par1NBTTagCompound) 046 { 047 NBTBase dimension = par1NBTTagCompound.getTag("dimension"); 048 049 if (dimension instanceof NBTTagByte) 050 { 051 this.dimension = ((NBTTagByte)dimension).data; 052 } 053 else 054 { 055 this.dimension = ((NBTTagInt)dimension).data; 056 } 057 058 this.xCenter = par1NBTTagCompound.getInteger("xCenter"); 059 this.zCenter = par1NBTTagCompound.getInteger("zCenter"); 060 this.scale = par1NBTTagCompound.getByte("scale"); 061 062 if (this.scale < 0) 063 { 064 this.scale = 0; 065 } 066 067 if (this.scale > 4) 068 { 069 this.scale = 4; 070 } 071 072 short var2 = par1NBTTagCompound.getShort("width"); 073 short var3 = par1NBTTagCompound.getShort("height"); 074 075 if (var2 == 128 && var3 == 128) 076 { 077 this.colors = par1NBTTagCompound.getByteArray("colors"); 078 } 079 else 080 { 081 byte[] var4 = par1NBTTagCompound.getByteArray("colors"); 082 this.colors = new byte[16384]; 083 int var5 = (128 - var2) / 2; 084 int var6 = (128 - var3) / 2; 085 086 for (int var7 = 0; var7 < var3; ++var7) 087 { 088 int var8 = var7 + var6; 089 090 if (var8 >= 0 || var8 < 128) 091 { 092 for (int var9 = 0; var9 < var2; ++var9) 093 { 094 int var10 = var9 + var5; 095 096 if (var10 >= 0 || var10 < 128) 097 { 098 this.colors[var10 + var8 * 128] = var4[var9 + var7 * var2]; 099 } 100 } 101 } 102 } 103 } 104 } 105 106 /** 107 * write data to NBTTagCompound from this MapDataBase, similar to Entities and TileEntities 108 */ 109 public void writeToNBT(NBTTagCompound par1NBTTagCompound) 110 { 111 par1NBTTagCompound.setInteger("dimension", this.dimension); 112 par1NBTTagCompound.setInteger("xCenter", this.xCenter); 113 par1NBTTagCompound.setInteger("zCenter", this.zCenter); 114 par1NBTTagCompound.setByte("scale", this.scale); 115 par1NBTTagCompound.setShort("width", (short)128); 116 par1NBTTagCompound.setShort("height", (short)128); 117 par1NBTTagCompound.setByteArray("colors", this.colors); 118 } 119 120 /** 121 * Adds the player passed to the list of visible players and checks to see which players are visible 122 */ 123 public void updateVisiblePlayers(EntityPlayer par1EntityPlayer, ItemStack par2ItemStack) 124 { 125 if (!this.playersHashMap.containsKey(par1EntityPlayer)) 126 { 127 MapInfo var3 = new MapInfo(this, par1EntityPlayer); 128 this.playersHashMap.put(par1EntityPlayer, var3); 129 this.playersArrayList.add(var3); 130 } 131 132 if (!par1EntityPlayer.inventory.hasItemStack(par2ItemStack)) 133 { 134 this.playersVisibleOnMap.remove(par1EntityPlayer.getCommandSenderName()); 135 } 136 137 for (int var5 = 0; var5 < this.playersArrayList.size(); ++var5) 138 { 139 MapInfo var4 = (MapInfo)this.playersArrayList.get(var5); 140 141 if (!var4.entityplayerObj.isDead && (var4.entityplayerObj.inventory.hasItemStack(par2ItemStack) || par2ItemStack.isOnItemFrame())) 142 { 143 if (!par2ItemStack.isOnItemFrame() && var4.entityplayerObj.dimension == this.dimension) 144 { 145 this.func_82567_a(0, var4.entityplayerObj.worldObj, var4.entityplayerObj.getCommandSenderName(), var4.entityplayerObj.posX, var4.entityplayerObj.posZ, (double)var4.entityplayerObj.rotationYaw); 146 } 147 } 148 else 149 { 150 this.playersHashMap.remove(var4.entityplayerObj); 151 this.playersArrayList.remove(var4); 152 } 153 } 154 155 if (par2ItemStack.isOnItemFrame()) 156 { 157 this.func_82567_a(1, par1EntityPlayer.worldObj, "frame-" + par2ItemStack.getItemFrame().entityId, (double)par2ItemStack.getItemFrame().xPosition, (double)par2ItemStack.getItemFrame().zPosition, (double)(par2ItemStack.getItemFrame().hangingDirection * 90)); 158 } 159 } 160 161 private void func_82567_a(int par1, World par2World, String par3Str, double par4, double par6, double par8) 162 { 163 int var10 = 1 << this.scale; 164 float var11 = (float)(par4 - (double)this.xCenter) / (float)var10; 165 float var12 = (float)(par6 - (double)this.zCenter) / (float)var10; 166 byte var13 = (byte)((int)((double)(var11 * 2.0F) + 0.5D)); 167 byte var14 = (byte)((int)((double)(var12 * 2.0F) + 0.5D)); 168 byte var16 = 63; 169 byte var15; 170 171 if (var11 >= (float)(-var16) && var12 >= (float)(-var16) && var11 <= (float)var16 && var12 <= (float)var16) 172 { 173 par8 += par8 < 0.0D ? -8.0D : 8.0D; 174 var15 = (byte)((int)(par8 * 16.0D / 360.0D)); 175 176 if (par2World.provider.shouldMapSpin(par3Str, par4, par6, par8)) 177 { 178 int var17 = (int)(par2World.getWorldInfo().getWorldTime() / 10L); 179 var15 = (byte)(var17 * var17 * 34187121 + var17 * 121 >> 15 & 15); 180 } 181 } 182 else 183 { 184 if (Math.abs(var11) >= 320.0F || Math.abs(var12) >= 320.0F) 185 { 186 this.playersVisibleOnMap.remove(par3Str); 187 return; 188 } 189 190 par1 = 6; 191 var15 = 0; 192 193 if (var11 <= (float)(-var16)) 194 { 195 var13 = (byte)((int)((double)(var16 * 2) + 2.5D)); 196 } 197 198 if (var12 <= (float)(-var16)) 199 { 200 var14 = (byte)((int)((double)(var16 * 2) + 2.5D)); 201 } 202 203 if (var11 >= (float)var16) 204 { 205 var13 = (byte)(var16 * 2 + 1); 206 } 207 208 if (var12 >= (float)var16) 209 { 210 var14 = (byte)(var16 * 2 + 1); 211 } 212 } 213 214 this.playersVisibleOnMap.put(par3Str, new MapCoord(this, (byte)par1, var13, var14, var15)); 215 } 216 217 public byte[] func_76193_a(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer) 218 { 219 MapInfo var4 = (MapInfo)this.playersHashMap.get(par3EntityPlayer); 220 return var4 == null ? null : var4.getPlayersOnMap(par1ItemStack); 221 } 222 223 /** 224 * Marks a vertical range of pixels as being modified so they will be resent to clients. Parameters: X, lowest Y, 225 * highest Y 226 */ 227 public void setColumnDirty(int par1, int par2, int par3) 228 { 229 super.markDirty(); 230 231 for (int var4 = 0; var4 < this.playersArrayList.size(); ++var4) 232 { 233 MapInfo var5 = (MapInfo)this.playersArrayList.get(var4); 234 235 if (var5.field_76209_b[par1] < 0 || var5.field_76209_b[par1] > par2) 236 { 237 var5.field_76209_b[par1] = par2; 238 } 239 240 if (var5.field_76210_c[par1] < 0 || var5.field_76210_c[par1] < par3) 241 { 242 var5.field_76210_c[par1] = par3; 243 } 244 } 245 } 246 247 @SideOnly(Side.CLIENT) 248 249 /** 250 * Updates the client's map with information from other players in MP 251 */ 252 public void updateMPMapData(byte[] par1ArrayOfByte) 253 { 254 int var2; 255 256 if (par1ArrayOfByte[0] == 0) 257 { 258 var2 = par1ArrayOfByte[1] & 255; 259 int var3 = par1ArrayOfByte[2] & 255; 260 261 for (int var4 = 0; var4 < par1ArrayOfByte.length - 3; ++var4) 262 { 263 this.colors[(var4 + var3) * 128 + var2] = par1ArrayOfByte[var4 + 3]; 264 } 265 266 this.markDirty(); 267 } 268 else if (par1ArrayOfByte[0] == 1) 269 { 270 this.playersVisibleOnMap.clear(); 271 272 for (var2 = 0; var2 < (par1ArrayOfByte.length - 1) / 3; ++var2) 273 { 274 byte var7 = (byte)(par1ArrayOfByte[var2 * 3 + 1] >> 4); 275 byte var8 = par1ArrayOfByte[var2 * 3 + 2]; 276 byte var5 = par1ArrayOfByte[var2 * 3 + 3]; 277 byte var6 = (byte)(par1ArrayOfByte[var2 * 3 + 1] & 15); 278 this.playersVisibleOnMap.put("icon-" + var2, new MapCoord(this, var7, var8, var5, var6)); 279 } 280 } 281 else if (par1ArrayOfByte[0] == 2) 282 { 283 this.scale = par1ArrayOfByte[1]; 284 } 285 } 286 287 public MapInfo func_82568_a(EntityPlayer par1EntityPlayer) 288 { 289 MapInfo var2 = (MapInfo)this.playersHashMap.get(par1EntityPlayer); 290 291 if (var2 == null) 292 { 293 var2 = new MapInfo(this, par1EntityPlayer); 294 this.playersHashMap.put(par1EntityPlayer, var2); 295 this.playersArrayList.add(var2); 296 } 297 298 return var2; 299 } 300 }