Dreadfrost

Ah didn't mean to register them twice. It was in the tutorial just to demo the purpose of the register method. The links you referenced seem to be what I was looking for. Thanks. I appreciate it. Is there a way to mark as solved?

I was following along with this mana bar tutorial. http://www.minecraftforum.net/forums/mapping-and-modding/mapping-and-modding-tutorials/1571567-forge-1-6-4-1-8-eventhandler-and I completed the server side configuration because I can empty and refill mana no problem. Next I created a custom GuiOverlay and now I need the client to update when using the items. The tutorial says this involves PacketHandeling but when I follow the link about PacketHandeling under updating to 1.7.2 the page http://www.minecraftforge.net/wiki/Netty_Packet_Handling says the info is out of date and to not use it. I imagine that's in reference to the 1.8 update. Debugging I can clearly see the server detects that mana changes when using items and restoring mana via the console. How can I send the changes to the client so It can update the GuiOverlay? Player property registration methods. package com.example.tutorial.entity.player; import net.minecraft.entity.player.EntityPlayer; import net.minecraftforge.event.entity.EntityEvent.EntityConstructing; import net.minecraftforge.fml.common.eventhandler.EventPriority; import net.minecraftforge.fml.common.eventhandler.SubscribeEvent; public class PlayerPropertyRegister { @SubscribeEvent(priority = EventPriority.NORMAL) public void onEntityConstructing(EntityConstructing event) { if (event.entity instanceof EntityPlayer && EntityPlayerManaProperty.get((EntityPlayer) event.entity) == null) { EntityPlayerManaProperty.register((EntityPlayer) event.entity); } } } Player Property class package com.example.tutorial.entity.player; import net.minecraft.entity.Entity; import net.minecraft.entity.player.EntityPlayer; import net.minecraft.nbt.NBTTagCompound; import net.minecraft.world.World; import net.minecraftforge.common.IExtendedEntityProperties; public class EntityPlayerManaProperty implements IExtendedEntityProperties { public final static String EXT_PROP_NAME = "ExtendedPlayerTest"; private final EntityPlayer player; private int currentMana, maxMana; public EntityPlayerManaProperty(EntityPlayer player) { this.player = player; this.currentMana = this.maxMana = 50; } public static final void register(EntityPlayer player) { player.registerExtendedProperties(EntityPlayerManaProperty.EXT_PROP_NAME, new EntityPlayerManaProperty(player)); } public static final EntityPlayerManaProperty get(EntityPlayer player) { return (EntityPlayerManaProperty) player.getExtendedProperties(EXT_PROP_NAME); } // Save any custom data that needs saving here @Override public void saveNBTData(NBTTagCompound compound) { // We need to create a new tag compound that will save everything for our Extended Properties NBTTagCompound properties = new NBTTagCompound(); // We only have 2 variables currently; save them both to the new tag properties.setInteger("CurrentMana", this.currentMana); properties.setInteger("MaxMana", this.maxMana); compound.setTag(EXT_PROP_NAME, properties); } // Load whatever data you saved @Override public void loadNBTData(NBTTagCompound compound) { // Here we fetch the unique tag compound we set for this class of Extended Properties NBTTagCompound properties = (NBTTagCompound) compound.getTag(EXT_PROP_NAME); // Get our data from the custom tag compound this.currentMana = properties.getInteger("CurrentMana"); this.maxMana = properties.getInteger("MaxMana"); System.out.println("[TUT PROPS] Mana from NBT: " + this.currentMana + "/" + this.maxMana); } @Override public void init(Entity entity, World world) { } /** * Returns true if the amount of mana was consumed or false * if the player's current mana was insufficient */ public boolean consumeMana(int amount) { // Does the player have enough mana? boolean sufficient = amount <= this.currentMana; // Consume the amount anyway; if it's more than the player's current mana, // mana will be set to 0 this.currentMana -= (amount < this.currentMana ? amount : this.currentMana); // Return if the player had enough mana return sufficient; } /** * Simple method sets current mana to max mana */ public void replenishMana() { this.currentMana = this.maxMana; } public int getCurrentMana() { return this.currentMana; } public int getMaxMana() { return this.maxMana; } } and the mana bar GuiOverlay package com.example.tutorial.client.gui; import org.lwjgl.opengl.GL11; import com.example.tutorial.entity.player.EntityPlayerManaProperty; import net.minecraft.client.Minecraft; import net.minecraft.client.gui.Gui; import net.minecraft.util.ResourceLocation; import net.minecraftforge.client.event.RenderGameOverlayEvent; import net.minecraftforge.client.event.RenderGameOverlayEvent.ElementType; import net.minecraftforge.fml.common.eventhandler.EventPriority; import net.minecraftforge.fml.common.eventhandler.SubscribeEvent; public class GuiManaBar extends Gui { private Minecraft mc; private static final ResourceLocation texturepath = new ResourceLocation("tutorialmod", "textures/gui/mana_bar.png"); public GuiManaBar(Minecraft mc) { super(); this.mc = mc; } @SubscribeEvent(priority = EventPriority.NORMAL) public void onRenderExperienceBar(RenderGameOverlayEvent event) { if (event.isCancelable() || event.type != ElementType.EXPERIENCE) { return; } // Get our extended player properties and assign it locally so we can easily access it EntityPlayerManaProperty props = EntityPlayerManaProperty.get(this.mc.thePlayer); // If for some reason these properties don't exist (perhaps in multiplayer?) // or the player doesn't have mana, return. if (props == null || props.getMaxMana() == 0) { return; } // Starting position for the mana bar - 2 pixels from the top left corner. int xPos = (event.resolution.getScaledWidth() + 256) / 2; int yPos = 2; // The center of the screen can be gotten like this during this event: // int xPos = event.resolution.getScaledWidth() / 2; // int yPos = event.resolution.getScaledHeight() / 2; // Be sure to offset based on your texture size or your texture will not be truly centered: // int xPos = (event.resolution.getScaledWidth() + textureWidth) / 2; // int yPos = (event.resolution.getScaledHeight() + textureHeight) / 2; GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F); GL11.glDisable(GL11.GL_LIGHTING); this.mc.getTextureManager().bindTexture(texturepath); /* The parameters for drawTexturedModalRect are as follows: drawTexturedModalRect(int x, int y, int u, int v, int width, int height); x and y are the on-screen position at which to render. u and v are the coordinates of the most upper-left pixel in your texture file from which to start drawing. width and height are how many pixels to render from the start point (u, v) */ // First draw the background layer. In my texture file, it starts at the upper- // left corner (x=0, y=0), ends at 50 pixels (so it's 51 pixels long) and is 4 pixels thick (y value) this.drawTexturedModalRect(xPos, yPos, 0, 0, 51, 4); // Then draw the foreground; it's located just below the background in my // texture file, so it starts at x=0, y=4, is only 2 pixels thick and 49 length // Why y=4 and not y=5? Y starts at 0, so 0,1,2,3 = 4 pixels for the background // However, we want the length to be based on current mana, so we need a new variable: int manabarwidth = (int)((((float)props.getCurrentMana()) / props.getMaxMana()) * 49); //System.out.println("[GUI MANA] Current mana bar width: " + manabarwidth); // Now we can draw our mana bar at yPos+1 so it centers in the background: this.drawTexturedModalRect(xPos, yPos + 1, 0, 4, manabarwidth, 2); } } Sry for all the comments I type tutorials out word for word.

I don't think there is an event for that specifically. The game just renders the item's name. Why do you want an event to be called when changing items, or as you said when the hotbar text changes? There is the class minecraftforge.client.gui.GuiInGameForge. It has all the gui render events and one is renderHUDText. I've never checkout what it actually renders on the screen.

To allow transparency in models you need to override two Block methods with the methods below: @Override public boolean isOpaqueCube() { return false; } @Override public EnumWorldBlockLayer getBlockLayer() { return EnumWorldBlockLayer.CUTOUT; } The method isOpaqueCube is set to false already by you extending BlockBreakable instead of Block. This third method below might help some shading bugs. Hope it works out. @Override public boolean isFullCube() { return false; }