Initial Repository Push
This commit is contained in:
@@ -0,0 +1,114 @@
|
||||
// • ▌ ▄ ·. ▄▄▄· ▄▄ • ▪ ▄▄· ▄▄▄▄· ▄▄▄· ▐▄▄▄ ▄▄▄ .
|
||||
// ·██ ▐███▪▐█ ▀█ ▐█ ▀ ▪██ ▐█ ▌▪▐█ ▀█▪▐█ ▀█ •█▌ ▐█▐▌·
|
||||
// ▐█ ▌▐▌▐█·▄█▀▀█ ▄█ ▀█▄▐█·██ ▄▄▐█▀▀█▄▄█▀▀█ ▐█▐ ▐▌▐▀▀▀
|
||||
// ██ ██▌▐█▌▐█ ▪▐▌▐█▄▪▐█▐█▌▐███▌██▄▪▐█▐█ ▪▐▌██▐ █▌▐█▄▄▌
|
||||
// ▀▀ █▪▀▀▀ ▀ ▀ ·▀▀▀▀ ▀▀▀·▀▀▀ ·▀▀▀▀ ▀ ▀ ▀▀ █▪ ▀▀▀
|
||||
// Magicbane Emulator Project © 2013 - 2022
|
||||
// www.magicbane.com
|
||||
|
||||
package engine.loot;
|
||||
|
||||
import java.sql.ResultSet;
|
||||
import java.sql.SQLException;
|
||||
|
||||
/**
|
||||
* Data storage object for Loot System.
|
||||
* Holds row in the lootGroup database table
|
||||
*/
|
||||
public class LootGroup {
|
||||
|
||||
private final int groupID;
|
||||
private final String groupName;
|
||||
private final int minRoll;
|
||||
private final int maxRoll;
|
||||
private final int lootTableID;
|
||||
private final String lootTableName;
|
||||
private final int pMod;
|
||||
private final int pModTableID;
|
||||
private final int sMod;
|
||||
private final int sModTableID;
|
||||
|
||||
public LootGroup(ResultSet rs) throws SQLException {
|
||||
|
||||
this.groupID = rs.getInt("groupID");
|
||||
this.groupName = rs.getString("groupName");
|
||||
this.minRoll = rs.getInt("minRoll");
|
||||
this.maxRoll = rs.getInt("maxRoll");
|
||||
this.lootTableID = rs.getInt("lootTableID");
|
||||
this.lootTableName = rs.getString("lootTableName");
|
||||
this.pMod = rs.getInt("pMod");
|
||||
this.pModTableID = rs.getInt("pModTableID");
|
||||
this.sMod = rs.getInt("sMod");
|
||||
this.sModTableID = rs.getInt("sModTableID");
|
||||
}
|
||||
/**
|
||||
* @return the groupID
|
||||
*/
|
||||
public int getGroupID() {
|
||||
return groupID;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the groupName
|
||||
*/
|
||||
public String getGroupName() {
|
||||
return groupName;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the minRoll
|
||||
*/
|
||||
public int getMinRoll() {
|
||||
return minRoll;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the maxRoll
|
||||
*/
|
||||
public int getMaxRoll() {
|
||||
return maxRoll;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the lootTableID
|
||||
*/
|
||||
public int getLootTableID() {
|
||||
return lootTableID;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the lootTableName
|
||||
*/
|
||||
public String getLootTableName() {
|
||||
return lootTableName;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the pMod
|
||||
*/
|
||||
public int getpMod() {
|
||||
return pMod;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the pModTableID
|
||||
*/
|
||||
public int getpModTableID() {
|
||||
return pModTableID;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the sMod
|
||||
*/
|
||||
public int getsMod() {
|
||||
return sMod;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the sModTableID
|
||||
*/
|
||||
public int getsModTableID() {
|
||||
return sModTableID;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,231 @@
|
||||
// • ▌ ▄ ·. ▄▄▄· ▄▄ • ▪ ▄▄· ▄▄▄▄· ▄▄▄· ▐▄▄▄ ▄▄▄ .
|
||||
// ·██ ▐███▪▐█ ▀█ ▐█ ▀ ▪██ ▐█ ▌▪▐█ ▀█▪▐█ ▀█ •█▌ ▐█▐▌·
|
||||
// ▐█ ▌▐▌▐█·▄█▀▀█ ▄█ ▀█▄▐█·██ ▄▄▐█▀▀█▄▄█▀▀█ ▐█▐ ▐▌▐▀▀▀
|
||||
// ██ ██▌▐█▌▐█ ▪▐▌▐█▄▪▐█▐█▌▐███▌██▄▪▐█▐█ ▪▐▌██▐ █▌▐█▄▄▌
|
||||
// ▀▀ █▪▀▀▀ ▀ ▀ ·▀▀▀▀ ▀▀▀·▀▀▀ ·▀▀▀▀ ▀ ▀ ▀▀ █▪ ▀▀▀
|
||||
// Magicbane Emulator Project © 2013 - 2022
|
||||
// www.magicbane.com
|
||||
|
||||
package engine.loot;
|
||||
|
||||
import engine.gameManager.DbManager;
|
||||
import engine.objects.Item;
|
||||
|
||||
import java.util.HashMap;
|
||||
import java.util.TreeMap;
|
||||
import java.util.concurrent.ThreadLocalRandom;
|
||||
|
||||
/**
|
||||
* Class contains static methods for data from Magicbane's loot tables
|
||||
*/
|
||||
public class LootManager {
|
||||
|
||||
private static final HashMap<Integer, TreeMap<Integer, LootGroup>> _lootGroups = new HashMap<>();
|
||||
private static final HashMap<Integer, TreeMap<Integer, LootTable>> _lootTables = new HashMap<>();
|
||||
private static final HashMap<Integer, TreeMap<Integer, ModifierGroup>> _modGroups = new HashMap<>();
|
||||
private static final HashMap<Integer, TreeMap> _modTables = new HashMap<>();
|
||||
|
||||
private LootManager() {
|
||||
|
||||
}
|
||||
|
||||
// Method adds a lootGroup to the class's internal collection
|
||||
// and configures the treemap accordingly
|
||||
|
||||
public static void addLootGroup(LootGroup lootGroup) {
|
||||
|
||||
// If entry for this lootGroup does not currently exist
|
||||
// we need to create one.
|
||||
|
||||
if (_lootGroups.containsKey(lootGroup.getGroupID()) == false)
|
||||
_lootGroups.put(lootGroup.getGroupID(), new TreeMap<>());
|
||||
|
||||
// Add this lootgroup to the appropriate treemap
|
||||
|
||||
_lootGroups.get(lootGroup.getGroupID()).put(lootGroup.getMaxRoll(), lootGroup);
|
||||
|
||||
}
|
||||
|
||||
public static void addLootTable(engine.loot.LootTable lootTable) {
|
||||
|
||||
// If entry for this lootTabe does not currently exist
|
||||
// we need to create one.
|
||||
|
||||
if (_lootTables.containsKey(lootTable.getLootTable()) == false)
|
||||
_lootTables.put(lootTable.getLootTable(),
|
||||
new TreeMap<>());
|
||||
|
||||
// Add this lootTable to the appropriate treemap
|
||||
|
||||
_lootTables.get(lootTable.getLootTable()).put(lootTable.getMaxRoll(), lootTable);
|
||||
|
||||
}
|
||||
|
||||
public static void addModifierGroup(ModifierGroup modGroup) {
|
||||
|
||||
// If entry for this lootTabe does not currently exist
|
||||
// we need to create one.
|
||||
|
||||
if (_modGroups.containsKey(modGroup.getModGroup()) == false)
|
||||
_modGroups.put(modGroup.getModGroup(),
|
||||
new TreeMap<>());
|
||||
|
||||
// Add this lootTable to the appropriate treemap
|
||||
|
||||
_modGroups.get(modGroup.getModGroup()).put(modGroup.getMaxRoll(), modGroup);
|
||||
|
||||
}
|
||||
|
||||
public static void addModifierTable(ModifierTable modTable) {
|
||||
|
||||
// If entry for this lootTabe does not currently exist
|
||||
// we need to create one.
|
||||
|
||||
if (_modTables.containsKey(modTable.getModTable()) == false)
|
||||
_modTables.put(modTable.getModTable(),
|
||||
new TreeMap<Float, ModifierGroup>());
|
||||
|
||||
// Add this lootTable to the appropriate treemap
|
||||
|
||||
_modTables.get(modTable.getModTable()).put(modTable.getMaxRoll(), modTable);
|
||||
|
||||
}
|
||||
|
||||
/* Mainline interfaces for this class. Methods below retrieve
|
||||
* entries from the loottable by random number and range.
|
||||
*/
|
||||
|
||||
public static LootGroup getRandomLootGroup(int lootGroupID, int randomRoll) {
|
||||
|
||||
if ((randomRoll < 1) || (randomRoll > 100))
|
||||
return null;
|
||||
|
||||
// Get random lootGroup for this roll
|
||||
|
||||
return _lootGroups.get(lootGroupID).floorEntry(randomRoll).getValue();
|
||||
|
||||
}
|
||||
|
||||
public static engine.loot.LootTable getRandomLootTable(int lootTableID, int randomRoll) {
|
||||
|
||||
if ((randomRoll < 1) || (randomRoll > 100))
|
||||
return null;
|
||||
|
||||
// Get random lootTable for this roll
|
||||
|
||||
return _lootTables.get(lootTableID).floorEntry(randomRoll).getValue();
|
||||
|
||||
}
|
||||
|
||||
public static ModifierGroup getRandomModifierGroup(int modGroupID, int randomRoll) {
|
||||
|
||||
if ((randomRoll < 1) || (randomRoll > 100))
|
||||
return null;
|
||||
|
||||
// Get random modGroup for this roll
|
||||
|
||||
return _modGroups.get(modGroupID).floorEntry(randomRoll).getValue();
|
||||
|
||||
}
|
||||
|
||||
public static ModifierTable getRandomModifierTable(int modTableID, float randomRoll) {
|
||||
|
||||
if ((randomRoll < 1.0f))
|
||||
return null;
|
||||
|
||||
// Roll is outside of range
|
||||
|
||||
if (randomRoll > getMaxRangeForModifierTable(modTableID))
|
||||
return null;
|
||||
|
||||
// Get random lootGroup for this roll
|
||||
|
||||
return (ModifierTable) _modTables.get(modTableID).floorEntry(randomRoll).getValue();
|
||||
|
||||
}
|
||||
|
||||
// Returns minmum rolling range for a particular modifier table entry
|
||||
|
||||
public static float getMinRangeForModifierTable(int modTableID) {
|
||||
|
||||
ModifierTable outTable;
|
||||
|
||||
outTable = (ModifierTable) _modTables.get(modTableID).firstEntry();
|
||||
|
||||
return outTable.getMinRoll();
|
||||
|
||||
}
|
||||
|
||||
// Returns maximum rolling range for a particular modifier table entry
|
||||
|
||||
public static float getMaxRangeForModifierTable(int modTableID) {
|
||||
|
||||
ModifierTable outTable;
|
||||
|
||||
outTable = (ModifierTable) _modTables.get(modTableID).lastEntry();
|
||||
|
||||
return outTable.getMaxRoll();
|
||||
}
|
||||
|
||||
public static Item getRandomItemFromLootGroup(int lootGroupID, int randomRoll) {
|
||||
|
||||
Item outItem = null;
|
||||
LootGroup lootGroup;
|
||||
LootTable lootTable;
|
||||
ModifierGroup modGroup;
|
||||
ModifierTable prefixTable;
|
||||
ModifierTable suffixTable;
|
||||
|
||||
// Retrieve a random loot group
|
||||
|
||||
lootGroup = getRandomLootGroup(lootGroupID, randomRoll);
|
||||
|
||||
if (lootGroup == null)
|
||||
return null;
|
||||
|
||||
// Retrieve a random loot table
|
||||
|
||||
lootTable = getRandomLootTable(lootGroup.getLootTableID(), ThreadLocalRandom.current().nextInt(100));
|
||||
|
||||
if (lootTable == null)
|
||||
return null;
|
||||
|
||||
// Retrieve a random prefix
|
||||
|
||||
modGroup = getRandomModifierGroup(lootGroup.getpModTableID(), ThreadLocalRandom.current().nextInt(100));
|
||||
|
||||
if (modGroup == null)
|
||||
return null;
|
||||
|
||||
prefixTable = getRandomModifierTable(modGroup.getSubTableID(), ThreadLocalRandom.current().nextFloat() * getMaxRangeForModifierTable(lootGroup.getpModTableID()));
|
||||
|
||||
if (prefixTable == null)
|
||||
return null;
|
||||
|
||||
// Retrieve a random suffix
|
||||
|
||||
modGroup = getRandomModifierGroup(lootGroup.getsModTableID(), ThreadLocalRandom.current().nextInt(100));
|
||||
|
||||
if (modGroup == null)
|
||||
return null;
|
||||
|
||||
suffixTable = getRandomModifierTable(modGroup.getSubTableID(), ThreadLocalRandom.current().nextFloat() * getMaxRangeForModifierTable(lootGroup.getsModTableID()));
|
||||
|
||||
if (suffixTable == null)
|
||||
return null;
|
||||
|
||||
// Create the item!
|
||||
|
||||
return outItem;
|
||||
}
|
||||
|
||||
// Bootstrap routine to load loot data from database
|
||||
|
||||
public static void loadLootData() {
|
||||
DbManager.LootQueries.LOAD_ALL_LOOTGROUPS();
|
||||
DbManager.LootQueries.LOAD_ALL_LOOTTABLES();
|
||||
DbManager.LootQueries.LOAD_ALL_MODGROUPS();
|
||||
DbManager.LootQueries.LOAD_ALL_MODTABLES();
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,98 @@
|
||||
// • ▌ ▄ ·. ▄▄▄· ▄▄ • ▪ ▄▄· ▄▄▄▄· ▄▄▄· ▐▄▄▄ ▄▄▄ .
|
||||
// ·██ ▐███▪▐█ ▀█ ▐█ ▀ ▪██ ▐█ ▌▪▐█ ▀█▪▐█ ▀█ •█▌ ▐█▐▌·
|
||||
// ▐█ ▌▐▌▐█·▄█▀▀█ ▄█ ▀█▄▐█·██ ▄▄▐█▀▀█▄▄█▀▀█ ▐█▐ ▐▌▐▀▀▀
|
||||
// ██ ██▌▐█▌▐█ ▪▐▌▐█▄▪▐█▐█▌▐███▌██▄▪▐█▐█ ▪▐▌██▐ █▌▐█▄▄▌
|
||||
// ▀▀ █▪▀▀▀ ▀ ▀ ·▀▀▀▀ ▀▀▀·▀▀▀ ·▀▀▀▀ ▀ ▀ ▀▀ █▪ ▀▀▀
|
||||
// Magicbane Emulator Project © 2013 - 2022
|
||||
// www.magicbane.com
|
||||
|
||||
package engine.loot;
|
||||
|
||||
import java.sql.ResultSet;
|
||||
import java.sql.SQLException;
|
||||
|
||||
/**
|
||||
* Data storage object for Loot System.
|
||||
* Holds row in the lootTable database table
|
||||
*/
|
||||
public class LootTable {
|
||||
|
||||
private final int lootTale;
|
||||
private final String tableName;
|
||||
private final String itemName;
|
||||
private final int minRoll;
|
||||
private final int maxRoll;
|
||||
private final int itemBaseUUID;
|
||||
private final int minSpawn;
|
||||
private final int maxSpawn;
|
||||
|
||||
public LootTable(ResultSet rs) throws SQLException {
|
||||
|
||||
this.lootTale = rs.getInt("lootTable");
|
||||
this.tableName = rs.getString("tableName");
|
||||
this.itemName = rs.getString("itemName");
|
||||
this.minRoll = rs.getInt("minRoll");
|
||||
this.maxRoll = rs.getInt("maxRoll");
|
||||
this.itemBaseUUID = rs.getInt("itemBaseUUID");
|
||||
this.minSpawn = rs.getInt("minSpawn");
|
||||
this.maxSpawn = rs.getInt("maxSpawn");
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the lootTale
|
||||
*/
|
||||
public int getLootTable() {
|
||||
return lootTale;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the tableName
|
||||
*/
|
||||
public String getTableName() {
|
||||
return tableName;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the itemName
|
||||
*/
|
||||
public String getItemName() {
|
||||
return itemName;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the minRoll
|
||||
*/
|
||||
public int getMinRoll() {
|
||||
return minRoll;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the maxRoll
|
||||
*/
|
||||
public int getMaxRoll() {
|
||||
return maxRoll;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the itemBaseUUID
|
||||
*/
|
||||
public int getItemBaseUUID() {
|
||||
return itemBaseUUID;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the minSpawn
|
||||
*/
|
||||
public int getMinSpawn() {
|
||||
return minSpawn;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the maxSpawn
|
||||
*/
|
||||
public int getMaxSpawn() {
|
||||
return maxSpawn;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,78 @@
|
||||
// • ▌ ▄ ·. ▄▄▄· ▄▄ • ▪ ▄▄· ▄▄▄▄· ▄▄▄· ▐▄▄▄ ▄▄▄ .
|
||||
// ·██ ▐███▪▐█ ▀█ ▐█ ▀ ▪██ ▐█ ▌▪▐█ ▀█▪▐█ ▀█ •█▌ ▐█▐▌·
|
||||
// ▐█ ▌▐▌▐█·▄█▀▀█ ▄█ ▀█▄▐█·██ ▄▄▐█▀▀█▄▄█▀▀█ ▐█▐ ▐▌▐▀▀▀
|
||||
// ██ ██▌▐█▌▐█ ▪▐▌▐█▄▪▐█▐█▌▐███▌██▄▪▐█▐█ ▪▐▌██▐ █▌▐█▄▄▌
|
||||
// ▀▀ █▪▀▀▀ ▀ ▀ ·▀▀▀▀ ▀▀▀·▀▀▀ ·▀▀▀▀ ▀ ▀ ▀▀ █▪ ▀▀▀
|
||||
// Magicbane Emulator Project © 2013 - 2022
|
||||
// www.magicbane.com
|
||||
|
||||
package engine.loot;
|
||||
|
||||
import java.sql.ResultSet;
|
||||
import java.sql.SQLException;
|
||||
|
||||
/**
|
||||
* Data storage object for Loot System.
|
||||
* Holds row in the modGroup database table
|
||||
*/
|
||||
public class ModifierGroup {
|
||||
|
||||
private final int modGroup;
|
||||
private final String groupName;
|
||||
private final int minRoll;
|
||||
private final int maxRoll;
|
||||
private final int subTableID;
|
||||
private final String subTableName;
|
||||
|
||||
public ModifierGroup(ResultSet rs) throws SQLException {
|
||||
|
||||
this.modGroup = rs.getInt("modGroup");
|
||||
this.groupName = rs.getString("groupName");
|
||||
this.minRoll = rs.getInt("minRoll");
|
||||
this.maxRoll = rs.getInt("maxRoll");
|
||||
this.subTableID = rs.getInt("subTableID");
|
||||
this.subTableName = rs.getString("subTableName");
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the modGroup
|
||||
*/
|
||||
public int getModGroup() {
|
||||
return modGroup;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the groupName
|
||||
*/
|
||||
public String getGroupName() {
|
||||
return groupName;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the minRoll
|
||||
*/
|
||||
public int getMinRoll() {
|
||||
return minRoll;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the maxRoll
|
||||
*/
|
||||
public int getMaxRoll() {
|
||||
return maxRoll;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the subTableID
|
||||
*/
|
||||
public int getSubTableID() {
|
||||
return subTableID;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the subTableName
|
||||
*/
|
||||
public String getSubTableName() {
|
||||
return subTableName;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,88 @@
|
||||
// • ▌ ▄ ·. ▄▄▄· ▄▄ • ▪ ▄▄· ▄▄▄▄· ▄▄▄· ▐▄▄▄ ▄▄▄ .
|
||||
// ·██ ▐███▪▐█ ▀█ ▐█ ▀ ▪██ ▐█ ▌▪▐█ ▀█▪▐█ ▀█ •█▌ ▐█▐▌·
|
||||
// ▐█ ▌▐▌▐█·▄█▀▀█ ▄█ ▀█▄▐█·██ ▄▄▐█▀▀█▄▄█▀▀█ ▐█▐ ▐▌▐▀▀▀
|
||||
// ██ ██▌▐█▌▐█ ▪▐▌▐█▄▪▐█▐█▌▐███▌██▄▪▐█▐█ ▪▐▌██▐ █▌▐█▄▄▌
|
||||
// ▀▀ █▪▀▀▀ ▀ ▀ ·▀▀▀▀ ▀▀▀·▀▀▀ ·▀▀▀▀ ▀ ▀ ▀▀ █▪ ▀▀▀
|
||||
// Magicbane Emulator Project © 2013 - 2022
|
||||
// www.magicbane.com
|
||||
|
||||
package engine.loot;
|
||||
|
||||
import java.sql.ResultSet;
|
||||
import java.sql.SQLException;
|
||||
|
||||
/**
|
||||
* Data storage object for Loot System.
|
||||
* Holds row in the modTables database table
|
||||
*/
|
||||
public class ModifierTable{
|
||||
|
||||
private final int modTable;
|
||||
private final String tableName;
|
||||
private final float minRoll;
|
||||
private final float maxRoll;
|
||||
private final String action;
|
||||
private final int level;
|
||||
private final int value;
|
||||
|
||||
public ModifierTable(ResultSet rs) throws SQLException {
|
||||
|
||||
this.modTable = rs.getInt("modTable");
|
||||
this.tableName = rs.getString("tableName");
|
||||
this.minRoll = rs.getInt("minRoll");
|
||||
this.maxRoll = rs.getInt("maxRoll");
|
||||
this.action = rs.getString("action");
|
||||
this.level = rs.getInt("level");
|
||||
this.value = rs.getInt("value");
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the modTable
|
||||
*/
|
||||
public int getModTable() {
|
||||
return modTable;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the tableName
|
||||
*/
|
||||
public String getTableName() {
|
||||
return tableName;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the minRoll
|
||||
*/
|
||||
public float getMinRoll() {
|
||||
return minRoll;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the maxRoll
|
||||
*/
|
||||
public float getMaxRoll() {
|
||||
return maxRoll;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the action
|
||||
*/
|
||||
public String getAction() {
|
||||
return action;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the level
|
||||
*/
|
||||
public int getLevel() {
|
||||
return level;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the value
|
||||
*/
|
||||
public int getValue() {
|
||||
return value;
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user