Added various things to the API and other small changes

This adds some useful functions to the api and a few other changes.
I had been creating a custom build of this mod while working on stuff because I couldn't figure out how to do certain things without changing the mod. So this is a collection api features that I think everyone would find useful.

Api additions:
-purchase counting, and disabling trades for the trader role. (if a trade is disabled the gui still says insufficient funds, maybe allow a custom message to appear) added get the traders currency items and sell items.
-if an npc's projectile does explosive damage, you can disable it destroying blocks even if mob griefing is on
-int arrays as stored data for entities
-entity.playSound(...)
-get set if npcs can drown
-player read and unread dialog
-player set faction points
-extra player.sendMessage functions to add custom colors/bold/underline
-player clear inventory
-get set if a follower npc is following a player or waiting
-a bunch of stuff to script faction
-is an item food and how many food points?
-get scoreboard team by it's name
-get and create factions from the script world
-world.rayCastBlockPos is used for getting what block a player is looking at.
-world.getNearestAir is meant to get the block of air above or around the result of world.rayCastBlockPos, or at least that's how I've been using it.

Changes:
-in NoppesUtilServer I feel like if an npc is cloned it's ticksExisted or age should bee zero
-follower npcs should have the canDespawn field automatically set to false...? maybe make it an option

src/main/java/noppes/npcs/scripted/entity/ScriptPlayer.java

@@ -9,7 +9,10 @@ import net.minecraft.stats.Achievement;
 import net.minecraft.stats.StatBase;
 import net.minecraft.stats.StatList;
 import net.minecraft.util.ChatComponentTranslation;
+import net.minecraft.util.ChatStyle;
 import net.minecraft.util.ChunkCoordinates;
+import net.minecraft.util.EnumChatFormatting;
+import net.minecraft.util.Vec3;
 import net.minecraft.world.WorldSettings;
 import noppes.npcs.*;
 import noppes.npcs.constants.EnumPacketClient;
@@ -21,6 +24,7 @@ import noppes.npcs.scripted.CustomNPCsException;
 import noppes.npcs.scripted.NpcAPI;
 import noppes.npcs.scripted.ScriptItemStack;
 import noppes.npcs.scripted.ScriptPixelmonPlayerData;
+import noppes.npcs.scripted.ScriptWorld;
 import noppes.npcs.scripted.constants.EntityType;
 import noppes.npcs.scripted.event.FactionEvent;
 import noppes.npcs.scripted.gui.ScriptGui;
@@ -120,6 +124,14 @@ public class ScriptPlayer<T extends EntityPlayerMP> extends ScriptLivingBase<T>
 		PlayerDialogData data = PlayerDataController.instance.getPlayerData(player).dialogData;
 		return data.dialogsRead.contains(id);
 	}
+	
+	public void readDialog(int id) {
+		PlayerDataController.instance.getPlayerData(player).dialogData.dialogsRead.add(id);
+	}
+	
+	public void unreadDialog(int id) {
+		PlayerDataController.instance.getPlayerData(player).dialogData.dialogsRead.remove(id);
+	}
 
 	/**
 	 * Add the quest from active quest list
@@ -192,6 +204,14 @@ public class ScriptPlayer<T extends EntityPlayerMP> extends ScriptLivingBase<T>
 		PlayerData data = PlayerDataController.instance.getPlayerData(player);
 		data.factionData.increasePoints(faction, points, player);
 	}
+	/**
+	 * @param faction The faction id
+	 * @param points The new point value for this faction
+	 */
+	public void setFactionPoints(int faction, int points) {
+		PlayerData data = PlayerDataController.instance.getPlayerData(player);
+		data.factionData.increasePoints(faction, points-getFactionPoints(faction), player);
+	}
         
     /**         
      * @param faction The faction id
@@ -209,6 +229,36 @@ public class ScriptPlayer<T extends EntityPlayerMP> extends ScriptLivingBase<T>
 		player.addChatMessage(new ChatComponentTranslation(NoppesStringUtils.formatText(message,player)));
 	}
 	
+	/**
+	 * @param message The message you want to send
+	 */
+	public void sendMessage(String message, EnumChatFormatting color, boolean bold, boolean italic, boolean underlined) {
+		ChatComponentTranslation chat = new ChatComponentTranslation(NoppesStringUtils.formatText(message,player));
+		ChatStyle style = new ChatStyle();
+		style.setColor(color);
+		style.setBold(bold);
+		style.setItalic(italic);
+		style.setUnderlined(underlined);
+		chat.setChatStyle(style);
+		player.addChatMessage(chat);
+	}
+	
+	/**
+	 * @param message The message you want to send
+	 */
+	public void sendMessage(String message, EnumChatFormatting color, boolean bold, boolean italic, boolean obfuscated, boolean strikethrough, boolean underlined) {
+		ChatComponentTranslation chat = new ChatComponentTranslation(NoppesStringUtils.formatText(message,player));
+		ChatStyle style = new ChatStyle();
+		style.setColor(color);
+		style.setBold(bold);
+		style.setItalic(italic);
+		style.setObfuscated(obfuscated);
+		style.setStrikethrough(strikethrough);
+		style.setUnderlined(underlined);
+		chat.setChatStyle(style);
+		player.addChatMessage(chat);
+	}
+	
 	/**
 	 * @return Return gamemode. 0: Survival, 1: Creative, 2: Adventure
 	 */
@@ -352,6 +402,11 @@ public class ScriptPlayer<T extends EntityPlayerMP> extends ScriptLivingBase<T>
             	player.inventory.mainInventory[i] = null;
 		}
 	}
+	
+	public void clearInventory() {
+		for(int i = 0; i < player.inventory.mainInventory.length; i++) player.inventory.mainInventory[i] = null;
+		for(int i = 0; i < player.inventory.armorInventory.length; i++) player.inventory.armorInventory[i] = null;
+	}
 
 	public void setRotation(float rotationYaw){
 		NoppesUtilPlayer.teleportPlayer(player, player.posX, player.posY, player.posZ, rotationYaw, player.rotationPitch, player.dimension);
@@ -407,6 +462,13 @@ public class ScriptPlayer<T extends EntityPlayerMP> extends ScriptLivingBase<T>
 			return null;
 		return new ScriptPixelmonPlayerData(player);
 	}
+	
+	public Vec3 getLookingAtBlock(int maxDistance) {
+		Vec3 posVec = Vec3.createVectorHelper(player.posX, 
+				player.posY+player.getEyeHeight(), player.posZ);
+		Vec3 lookVec = player.getLookVec();
+		return NpcAPI.Instance().getIWorld(player.dimension).rayCastBlockPos(posVec, lookVec, maxDistance);
+	}
 
 	public ITimers getTimers() {
 		return PlayerDataController.instance.getPlayerData(player).timers;