001package net.minecraft.world.storage;
002
003import cpw.mods.fml.relauncher.Side;
004import cpw.mods.fml.relauncher.SideOnly;
005import java.util.ArrayList;
006import java.util.HashMap;
007import java.util.LinkedHashMap;
008import java.util.List;
009import java.util.Map;
010import net.minecraft.entity.player.EntityPlayer;
011import net.minecraft.item.ItemStack;
012import net.minecraft.nbt.*;
013import net.minecraft.world.World;
014import net.minecraft.world.WorldSavedData;
015
016public 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    /**
218     * Get byte array of packet data to send to players on map for updating map data
219     */
220    public byte[] getUpdatePacketData(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer)
221    {
222        MapInfo var4 = (MapInfo)this.playersHashMap.get(par3EntityPlayer);
223        return var4 == null ? null : var4.getPlayersOnMap(par1ItemStack);
224    }
225
226    /**
227     * Marks a vertical range of pixels as being modified so they will be resent to clients. Parameters: X, lowest Y,
228     * highest Y
229     */
230    public void setColumnDirty(int par1, int par2, int par3)
231    {
232        super.markDirty();
233
234        for (int var4 = 0; var4 < this.playersArrayList.size(); ++var4)
235        {
236            MapInfo var5 = (MapInfo)this.playersArrayList.get(var4);
237
238            if (var5.field_76209_b[par1] < 0 || var5.field_76209_b[par1] > par2)
239            {
240                var5.field_76209_b[par1] = par2;
241            }
242
243            if (var5.field_76210_c[par1] < 0 || var5.field_76210_c[par1] < par3)
244            {
245                var5.field_76210_c[par1] = par3;
246            }
247        }
248    }
249
250    @SideOnly(Side.CLIENT)
251
252    /**
253     * Updates the client's map with information from other players in MP
254     */
255    public void updateMPMapData(byte[] par1ArrayOfByte)
256    {
257        int var2;
258
259        if (par1ArrayOfByte[0] == 0)
260        {
261            var2 = par1ArrayOfByte[1] & 255;
262            int var3 = par1ArrayOfByte[2] & 255;
263
264            for (int var4 = 0; var4 < par1ArrayOfByte.length - 3; ++var4)
265            {
266                this.colors[(var4 + var3) * 128 + var2] = par1ArrayOfByte[var4 + 3];
267            }
268
269            this.markDirty();
270        }
271        else if (par1ArrayOfByte[0] == 1)
272        {
273            this.playersVisibleOnMap.clear();
274
275            for (var2 = 0; var2 < (par1ArrayOfByte.length - 1) / 3; ++var2)
276            {
277                byte var7 = (byte)(par1ArrayOfByte[var2 * 3 + 1] >> 4);
278                byte var8 = par1ArrayOfByte[var2 * 3 + 2];
279                byte var5 = par1ArrayOfByte[var2 * 3 + 3];
280                byte var6 = (byte)(par1ArrayOfByte[var2 * 3 + 1] & 15);
281                this.playersVisibleOnMap.put("icon-" + var2, new MapCoord(this, var7, var8, var5, var6));
282            }
283        }
284        else if (par1ArrayOfByte[0] == 2)
285        {
286            this.scale = par1ArrayOfByte[1];
287        }
288    }
289
290    public MapInfo func_82568_a(EntityPlayer par1EntityPlayer)
291    {
292        MapInfo var2 = (MapInfo)this.playersHashMap.get(par1EntityPlayer);
293
294        if (var2 == null)
295        {
296            var2 = new MapInfo(this, par1EntityPlayer);
297            this.playersHashMap.put(par1EntityPlayer, var2);
298            this.playersArrayList.add(var2);
299        }
300
301        return var2;
302    }
303}