    001    package net.minecraft.src;
    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
    011    public class MapData extends WorldSavedData
    012    {
    013        public int xCenter;
    014        public int zCenter;
    015        public int dimension;
    016        public byte scale;
    017
    018        /** colours */
    019        public byte[] colors = new byte[16384];
    020
    021        /**
    022         * Holds a reference to the MapInfo of the players who own a copy of the map
    023         */
    024        public List playersArrayList = new ArrayList();
    025
    026        /**
    027         * Holds a reference to the players who own a copy of the map and a reference to their MapInfo
    028         */
    029        private Map playersHashMap = new HashMap();
    030        public Map playersVisibleOnMap = new LinkedHashMap();
    031
    032        public MapData(String par1Str)
    033        {
    034            super(par1Str);
    035        }
    036
    037        /**
    038         * reads in data from the NBTTagCompound into this MapDataBase
    039         */
    040        public void readFromNBT(NBTTagCompound par1NBTTagCompound)
    041        {
    042            NBTBase dimension = par1NBTTagCompound.getTag("dimension");
    043
    044            if (dimension instanceof NBTTagByte)
    045            {
    046                this.dimension = ((NBTTagByte)dimension).data;
    047            }
    048            else
    049            {
    050                this.dimension = ((NBTTagInt)dimension).data;
    051            }
    052            this.xCenter = par1NBTTagCompound.getInteger("xCenter");
    053            this.zCenter = par1NBTTagCompound.getInteger("zCenter");
    054            this.scale = par1NBTTagCompound.getByte("scale");
    055
    056            if (this.scale < 0)
    057            {
    058                this.scale = 0;
    059            }
    060
    061            if (this.scale > 4)
    062            {
    063                this.scale = 4;
    064            }
    065
    066            short var2 = par1NBTTagCompound.getShort("width");
    067            short var3 = par1NBTTagCompound.getShort("height");
    068
    069            if (var2 == 128 && var3 == 128)
    070            {
    071                this.colors = par1NBTTagCompound.getByteArray("colors");
    072            }
    073            else
    074            {
    075                byte[] var4 = par1NBTTagCompound.getByteArray("colors");
    076                this.colors = new byte[16384];
    077                int var5 = (128 - var2) / 2;
    078                int var6 = (128 - var3) / 2;
    079
    080                for (int var7 = 0; var7 < var3; ++var7)
    081                {
    082                    int var8 = var7 + var6;
    083
    084                    if (var8 >= 0 || var8 < 128)
    085                    {
    086                        for (int var9 = 0; var9 < var2; ++var9)
    087                        {
    088                            int var10 = var9 + var5;
    089
    090                            if (var10 >= 0 || var10 < 128)
    091                            {
    092                                this.colors[var10 + var8 * 128] = var4[var9 + var7 * var2];
    093                            }
    094                        }
    095                    }
    096                }
    097            }
    098        }
    099
    100        /**
    101         * write data to NBTTagCompound from this MapDataBase, similar to Entities and TileEntities
    102         */
    103        public void writeToNBT(NBTTagCompound par1NBTTagCompound)
    104        {
    105            par1NBTTagCompound.setInteger("dimension", this.dimension);
    106            par1NBTTagCompound.setInteger("xCenter", this.xCenter);
    107            par1NBTTagCompound.setInteger("zCenter", this.zCenter);
    108            par1NBTTagCompound.setByte("scale", this.scale);
    109            par1NBTTagCompound.setShort("width", (short)128);
    110            par1NBTTagCompound.setShort("height", (short)128);
    111            par1NBTTagCompound.setByteArray("colors", this.colors);
    112        }
    113
    114        /**
    115         * Adds the player passed to the list of visible players and checks to see which players are visible
    116         */
    117        public void updateVisiblePlayers(EntityPlayer par1EntityPlayer, ItemStack par2ItemStack)
    118        {
    119            if (!this.playersHashMap.containsKey(par1EntityPlayer))
    120            {
    121                MapInfo var3 = new MapInfo(this, par1EntityPlayer);
    122                this.playersHashMap.put(par1EntityPlayer, var3);
    123                this.playersArrayList.add(var3);
    124            }
    125
    126            if (!par1EntityPlayer.inventory.hasItemStack(par2ItemStack))
    127            {
    128                this.playersVisibleOnMap.remove(par1EntityPlayer.getCommandSenderName());
    129            }
    130
    131            for (int var5 = 0; var5 < this.playersArrayList.size(); ++var5)
    132            {
    133                MapInfo var4 = (MapInfo)this.playersArrayList.get(var5);
    134
    135                if (!var4.entityplayerObj.isDead && (var4.entityplayerObj.inventory.hasItemStack(par2ItemStack) || par2ItemStack.func_82839_y()))
    136                {
    137                    if (!par2ItemStack.func_82839_y() && var4.entityplayerObj.dimension == this.dimension)
    138                    {
    139                        this.func_82567_a(0, var4.entityplayerObj.worldObj, var4.entityplayerObj.getCommandSenderName(), var4.entityplayerObj.posX, var4.entityplayerObj.posZ, (double)var4.entityplayerObj.rotationYaw);
    140                    }
    141                }
    142                else
    143                {
    144                    this.playersHashMap.remove(var4.entityplayerObj);
    145                    this.playersArrayList.remove(var4);
    146                }
    147            }
    148
    149            if (par2ItemStack.func_82839_y())
    150            {
    151                this.func_82567_a(1, par1EntityPlayer.worldObj, "frame-" + par2ItemStack.func_82836_z().entityId, (double)par2ItemStack.func_82836_z().xPosition, (double)par2ItemStack.func_82836_z().zPosition, (double)(par2ItemStack.func_82836_z().field_82332_a * 90));
    152            }
    153        }
    154
    155        private void func_82567_a(int par1, World par2World, String par3Str, double par4, double par6, double par8)
    156        {
    157            int var10 = 1 << this.scale;
    158            float var11 = (float)(par4 - (double)this.xCenter) / (float)var10;
    159            float var12 = (float)(par6 - (double)this.zCenter) / (float)var10;
    160            byte var13 = (byte)((int)((double)(var11 * 2.0F) + 0.5D));
    161            byte var14 = (byte)((int)((double)(var12 * 2.0F) + 0.5D));
    162            byte var16 = 63;
    163            byte var15;
    164
    165            if (var11 >= (float)(-var16) && var12 >= (float)(-var16) && var11 <= (float)var16 && var12 <= (float)var16)
    166            {
    167                par8 += par8 < 0.0D ? -8.0D : 8.0D;
    168                var15 = (byte)((int)(par8 * 16.0D / 360.0D));
    169
    170                if (this.dimension < 0)
    171                {
    172                    int var17 = (int)(par2World.getWorldInfo().getWorldTime() / 10L);
    173                    var15 = (byte)(var17 * var17 * 34187121 + var17 * 121 >> 15 & 15);
    174                }
    175            }
    176            else
    177            {
    178                if (Math.abs(var11) >= 320.0F || Math.abs(var12) >= 320.0F)
    179                {
    180                    this.playersVisibleOnMap.remove(par3Str);
    181                    return;
    182                }
    183
    184                par1 = 6;
    185                var15 = 0;
    186
    187                if (var11 <= (float)(-var16))
    188                {
    189                    var13 = (byte)((int)((double)(var16 * 2) + 2.5D));
    190                }
    191
    192                if (var12 <= (float)(-var16))
    193                {
    194                    var14 = (byte)((int)((double)(var16 * 2) + 2.5D));
    195                }
    196
    197                if (var11 >= (float)var16)
    198                {
    199                    var13 = (byte)(var16 * 2 + 1);
    200                }
    201
    202                if (var12 >= (float)var16)
    203                {
    204                    var14 = (byte)(var16 * 2 + 1);
    205                }
    206            }
    207
    208            this.playersVisibleOnMap.put(par3Str, new MapCoord(this, (byte)par1, var13, var14, var15));
    209        }
    210
    211        public byte[] func_76193_a(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer)
    212        {
    213            MapInfo var4 = (MapInfo)this.playersHashMap.get(par3EntityPlayer);
    214            return var4 == null ? null : var4.getPlayersOnMap(par1ItemStack);
    215        }
    216
    217        public void func_76194_a(int par1, int par2, int par3)
    218        {
    219            super.markDirty();
    220
    221            for (int var4 = 0; var4 < this.playersArrayList.size(); ++var4)
    222            {
    223                MapInfo var5 = (MapInfo)this.playersArrayList.get(var4);
    224
    225                if (var5.field_76209_b[par1] < 0 || var5.field_76209_b[par1] > par2)
    226                {
    227                    var5.field_76209_b[par1] = par2;
    228                }
    229
    230                if (var5.field_76210_c[par1] < 0 || var5.field_76210_c[par1] < par3)
    231                {
    232                    var5.field_76210_c[par1] = par3;
    233                }
    234            }
    235        }
    236
    237        @SideOnly(Side.CLIENT)
    238
    239        /**
    240         * Updates the client's map with information from other players in MP
    241         */
    242        public void updateMPMapData(byte[] par1ArrayOfByte)
    243        {
    244            int var2;
    245
    246            if (par1ArrayOfByte[0] == 0)
    247            {
    248                var2 = par1ArrayOfByte[1] & 255;
    249                int var3 = par1ArrayOfByte[2] & 255;
    250
    251                for (int var4 = 0; var4 < par1ArrayOfByte.length - 3; ++var4)
    252                {
    253                    this.colors[(var4 + var3) * 128 + var2] = par1ArrayOfByte[var4 + 3];
    254                }
    255
    256                this.markDirty();
    257            }
    258            else if (par1ArrayOfByte[0] == 1)
    259            {
    260                this.playersVisibleOnMap.clear();
    261
    262                for (var2 = 0; var2 < (par1ArrayOfByte.length - 1) / 3; ++var2)
    263                {
    264                    byte var7 = (byte)(par1ArrayOfByte[var2 * 3 + 1] >> 4);
    265                    byte var8 = par1ArrayOfByte[var2 * 3 + 2];
    266                    byte var5 = par1ArrayOfByte[var2 * 3 + 3];
    267                    byte var6 = (byte)(par1ArrayOfByte[var2 * 3 + 1] & 15);
    268                    this.playersVisibleOnMap.put("icon-" + var2, new MapCoord(this, var7, var8, var5, var6));
    269                }
    270            }
    271            else if (par1ArrayOfByte[0] == 2)
    272            {
    273                this.scale = par1ArrayOfByte[1];
    274            }
    275        }
    276
    277        public MapInfo func_82568_a(EntityPlayer par1EntityPlayer)
    278        {
    279            MapInfo var2 = (MapInfo)this.playersHashMap.get(par1EntityPlayer);
    280
    281            if (var2 == null)
    282            {
    283                var2 = new MapInfo(this, par1EntityPlayer);
    284                this.playersHashMap.put(par1EntityPlayer, var2);
    285                this.playersArrayList.add(var2);
    286            }
    287
    288            return var2;
    289        }
    290    }