Block damage progress

[fuzzybat23]

I'm working on a mod that draws the selection box around the targeted block with thicker lines and or multiple colors.  That part I have working fine.  Now I'm trying to make it shrink the selection box in tandem with how much damage the block is taking.  To do that, I'm using code like this:

 

AxisAlignedBB aabb = iblockstate.getSelectedBoundingBox(player.getEntityWorld(), blockpos1).grow(0.0020000000949949026D).offset(-d0, -d1, -d2);

    			float breakProgress = getBlockDamage(player, d0, d1, d2);           

    			if(breakAnimation == SHRINK)
    				aabb = aabb.expand(-breakProgress / 2, -breakProgress / 2, -breakProgress / 2);

 

The snag I've hit his how exactly to retrieve the break progress of the targeted block.  Does anyone have any ideas how to do this?  I've tried adapting the code from RenderGlobal that governs drawing the current break icon on the block being broken, but after loading it up in game, it doesn't seem to do anything at all.  Here's what I have so far.

 

package com.fuzzybat23.csbr;

import com.fuzzybat23.csbr.proxy.CommonProxy;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Queues;
import com.google.common.collect.Sets;
import com.google.gson.JsonSyntaxException;
import java.io.IOException;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.Random;
import java.util.Set;
import javax.annotation.Nullable;
import net.minecraft.block.Block;
import net.minecraft.block.BlockChest;
import net.minecraft.block.BlockEnderChest;
import net.minecraft.block.BlockSign;
import net.minecraft.block.BlockSkull;
import net.minecraft.block.SoundType;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.client.Minecraft;
import net.minecraft.client.audio.ISound;
import net.minecraft.client.audio.PositionedSoundRecord;
import net.minecraft.client.multiplayer.WorldClient;
import net.minecraft.client.particle.Particle;
import net.minecraft.client.renderer.ActiveRenderInfo;
import net.minecraft.client.renderer.BlockRendererDispatcher;
import net.minecraft.client.renderer.BufferBuilder;
import net.minecraft.client.renderer.DestroyBlockProgress;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.chunk.ChunkRenderDispatcher;
import net.minecraft.client.renderer.chunk.CompiledChunk;
import net.minecraft.client.renderer.chunk.IRenderChunkFactory;
import net.minecraft.client.renderer.chunk.ListChunkFactory;
import net.minecraft.client.renderer.chunk.RenderChunk;
import net.minecraft.client.renderer.chunk.VboChunkFactory;
import net.minecraft.client.renderer.chunk.VisGraph;
import net.minecraft.client.renderer.culling.ClippingHelper;
import net.minecraft.client.renderer.culling.ClippingHelperImpl;
import net.minecraft.client.renderer.culling.Frustum;
import net.minecraft.client.renderer.culling.ICamera;
import net.minecraft.client.renderer.entity.RenderManager;
import net.minecraft.client.renderer.texture.TextureAtlasSprite;
import net.minecraft.client.renderer.texture.TextureManager;
import net.minecraft.client.renderer.texture.TextureMap;
import net.minecraft.client.renderer.tileentity.TileEntityRendererDispatcher;
import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
import net.minecraft.client.renderer.vertex.VertexBuffer;
import net.minecraft.client.renderer.vertex.VertexFormat;
import net.minecraft.client.renderer.vertex.VertexFormatElement;
import net.minecraft.client.resources.IResourceManager;
import net.minecraft.client.resources.IResourceManagerReloadListener;
import net.minecraft.client.shader.Framebuffer;
import net.minecraft.client.shader.ShaderGroup;
import net.minecraft.client.shader.ShaderLinkHelper;
import net.minecraft.crash.CrashReport;
import net.minecraft.crash.CrashReportCategory;
import net.minecraft.crash.ICrashReportDetail;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.init.Items;
import net.minecraft.init.SoundEvents;
import net.minecraft.item.Item;
import net.minecraft.item.ItemDye;
import net.minecraft.item.ItemRecord;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.tileentity.TileEntityChest;
import net.minecraft.util.BlockRenderLayer;
import net.minecraft.util.ClassInheritanceMultiMap;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumParticleTypes;
import net.minecraft.util.ReportedException;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.SoundCategory;
import net.minecraft.util.SoundEvent;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.util.math.RayTraceResult;
import net.minecraft.util.math.Vec3d;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.IWorldEventListener;
import net.minecraft.world.World;
import net.minecraft.world.border.WorldBorder;
import net.minecraft.world.chunk.Chunk;
import net.minecraftforge.client.event.DrawBlockHighlightEvent;
import net.minecraftforge.client.event.MouseEvent;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.Mod.Instance;
import net.minecraftforge.fml.common.SidedProxy;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.lwjgl.opengl.GL11;
import org.lwjgl.util.vector.Vector3f;
import org.lwjgl.util.vector.Vector4f;

@Mod(modid=Reference.Mod_ID, name=Reference.NAME, version=Reference.VERSION, acceptedMinecraftVersions=Reference.ACCEPTED_VERSIONS)
public class CSBR {
	
	//public class RenderGlobal implements IWorldEventListener, IResourceManagerReloadListener {
	
    private static final Logger LOGGER = LogManager.getLogger();
    private final Minecraft mc = Minecraft.getMinecraft();
    private final Map<Integer, DestroyBlockProgress> damagedBlocks = Maps.<Integer, DestroyBlockProgress>newHashMap();
    
    public static float r = 0.0F;		// red
    public static float g = 0.0F;		// green
    public static float b = 0.0F;		// blue
    public static float a = 0.0F;		// alpha
    
    public static float br = 0.0F;		// blink red
    public static float bg = 0.0F;		// blink green
    public static float bb = 0.0F;		// blink blue
    public static float ba = 0.0F;		// blink alpha
    public static float bs = 0.0F;		// blink speed
    public static float w = 2.0F;		// line width
    
    public static int breakAnimation;
    
	public static int NONE = 0;
	public static int SHRINK = 1;
	public static int DOWN = 2;
	public static int ALPHA = 3;
	public static int LASTANIMATION_INDEX = 3;
    
    public static boolean disableDepthBuffer;
    
	@Instance
	public static CSBR instance;

	@SidedProxy(clientSide = Reference.CLIENT_PROXY_CLASS, serverSide = Reference.CLIENT_SERVER_CLASS)
	public static CommonProxy proxy;
	
	@EventHandler
	public void preInit(FMLPreInitializationEvent event)
	{
		proxy.registerTickHandler();
		MinecraftForge.EVENT_BUS.register(this);
		
		r = 1.0F;
		a = 0.30F;
		br = 0.0F;
		bg = 1.0F;
		ba = 0.35F;
		bs = 0.5F;
		w = 4.0F;
		breakAnimation = 1;
		
		disableDepthBuffer=false;
	}
	
	@EventHandler
	public void Init(FMLInitializationEvent event)
	{
	
	}

	@EventHandler
	public void PostInit(FMLPostInitializationEvent event)
	{
	
	}
	
	@SubscribeEvent
	public void onDrawBlockSelectionBox(DrawBlockHighlightEvent e) {
		drawSelectionBox(e.getPlayer(), e.getTarget(), e.getSubID(), e.getPartialTicks());
		e.setCanceled(true);
	}
	
    /**
     * Draws the selection box for the player.
     */
    public void drawSelectionBox(EntityPlayer player, RayTraceResult movingObjectPositionIn, int execute, float partialTicks)
    {

        if (execute == 0 && movingObjectPositionIn.typeOfHit == RayTraceResult.Type.BLOCK)
        {

        	if(disableDepthBuffer) {
        		GL11.glDisable(GL11.GL_DEPTH_TEST);
        	}
        	
            GlStateManager.enableBlend();
            GlStateManager.tryBlendFuncSeparate(GlStateManager.SourceFactor.SRC_ALPHA, GlStateManager.DestFactor.ONE_MINUS_SRC_ALPHA, GlStateManager.SourceFactor.ONE, GlStateManager.DestFactor.ZERO);
            GlStateManager.glLineWidth(w);
    		GlStateManager.disableTexture2D();
            GlStateManager.depthMask(false);

            if (this.mc.objectMouseOver != null && this.mc.objectMouseOver.typeOfHit == RayTraceResult.Type.BLOCK && this.mc.objectMouseOver.getBlockPos() != null )

            {
            	BlockPos blockpos1 = this.mc.objectMouseOver.getBlockPos();
                IBlockState iblockstate = player.getEntityWorld().getBlockState(blockpos1); 
            
                double d0 = player.lastTickPosX + (player.posX - player.lastTickPosX) * (double)partialTicks;
                double d1 = player.lastTickPosY + (player.posY - player.lastTickPosY) * (double)partialTicks;
                double d2 = player.lastTickPosZ + (player.posZ - player.lastTickPosZ) * (double)partialTicks;
                
                AxisAlignedBB aabb = iblockstate.getSelectedBoundingBox(player.getEntityWorld(), blockpos1).grow(0.0020000000949949026D).offset(-d0, -d1, -d2);

    			float breakProgress = getBlockDamage(player, d0, d1, d2);           
    			
    			if(breakAnimation == DOWN)
    				aabb = aabb.expand(0.0F, -breakProgress / 2, 0.0F);
    			
    			if(breakAnimation == SHRINK)
    				aabb = aabb.expand(-breakProgress / 2, -breakProgress / 2, -breakProgress / 2);
                
                //Draw Boxes
                drawSelectionBlinkingBox(aabb, br, bg, bb, ba);
                
                drawSelectionBoundingBox(aabb, r, g, b, a);
            }


            GL11.glEnable(GL11.GL_DEPTH_TEST);
            GlStateManager.depthMask(true);
            GlStateManager.enableTexture2D();
            GlStateManager.disableBlend();
        }
    }

    // Draw Block Overlay Mask
    
    public static void drawSelectionBlinkingBox(AxisAlignedBB box, float red, float green, float blue, float alpha)
    {
        drawMask(box.minX, box.minY, box.minZ, box.maxX, box.maxY, box.maxZ, red, green, blue, alpha);
    }
    
    public static void drawMask(double minX, double minY, double minZ, double maxX, double maxY, double maxZ, float red, float green, float blue, float alpha)
    {
        Tessellator t = Tessellator.getInstance();
        BufferBuilder b1 = t.getBuffer();
        b1.begin(7, DefaultVertexFormats.POSITION_COLOR);
        
        if(alpha > 0.0F)
        {
        	alpha *= (float) Math.abs(Math.sin(Minecraft.getSystemTime() / 100.0D * bs));	
        
        	drawMask(b1, minX, minY, minZ, maxX, maxY, maxZ, red, green, blue, alpha);
        	t.draw();
    	}
	}
    
    public static void drawMask(BufferBuilder b1, double minX, double minY, double minZ, double maxX, double maxY, double maxZ, float red, float green, float blue, float alpha)
    {
    	//up
		b1.pos(minX, minY, minZ).color(red, green, blue, alpha).endVertex();
		b1.pos(maxX, minY, minZ).color(red, green, blue, alpha).endVertex();
		b1.pos(maxX, minY, maxZ).color(red, green, blue, alpha).endVertex();
		b1.pos(minX, minY, maxZ).color(red, green, blue, alpha).endVertex();
		//b1.pos(minX, minY, minZ).color(red, green, blue, alpha).endVertex();
	
		//down
		b1.pos(minX, maxY, minZ).color(red, green, blue, alpha).endVertex();
		b1.pos(minX, maxY, maxZ).color(red, green, blue, alpha).endVertex();
		b1.pos(maxX, maxY, maxZ).color(red, green, blue, alpha).endVertex();
		b1.pos(maxX, maxY, minZ).color(red, green, blue, alpha).endVertex();
		//b1.pos(minX, maxY, minZ).color(red, green, blue, alpha).endVertex();
		
		//north
		b1.pos(minX, minY, minZ).color(red, green, blue, alpha).endVertex();
		b1.pos(minX, maxY, minZ).color(red, green, blue, alpha).endVertex();
		b1.pos(maxX, maxY, minZ).color(red, green, blue, alpha).endVertex();
		b1.pos(maxX, minY, minZ).color(red, green, blue, alpha).endVertex();
		//b1.pos(minX, minY, minZ).color(red, green, blue, alpha).endVertex();
		
		//south
		b1.pos(minX, minY, maxZ).color(red, green, blue, alpha).endVertex();
		b1.pos(maxX, minY, maxZ).color(red, green, blue, alpha).endVertex();
		b1.pos(maxX, maxY, maxZ).color(red, green, blue, alpha).endVertex();
		b1.pos(minX, maxY, maxZ).color(red, green, blue, alpha).endVertex();
		//b1.pos(minX, minY, maxZ).color(red, green, blue, alpha).endVertex();
		
		//east
		b1.pos(maxX, minY, minZ).color(red, green, blue, alpha).endVertex();
		b1.pos(maxX, maxY, minZ).color(red, green, blue, alpha).endVertex();
		b1.pos(maxX, maxY, maxZ).color(red, green, blue, alpha).endVertex();
		b1.pos(maxX, minY, maxZ).color(red, green, blue, alpha).endVertex();
		//b1.pos(maxX, minY, minZ).color(red, green, blue, alpha).endVertex();
		
		//west
		b1.pos(minX, minY, minZ).color(red, green, blue, alpha).endVertex();
		b1.pos(minX, minY, maxZ).color(red, green, blue, alpha).endVertex();
		b1.pos(minX, maxY, maxZ).color(red, green, blue, alpha).endVertex();
		b1.pos(minX, maxY, minZ).color(red, green, blue, alpha).endVertex();
		//b1.pos(minX, minY, minZ).color(red, green, blue, alpha).endVertex();
    }
    
    // Draw Selection Bounding Box
    
    public static void drawSelectionBoundingBox(AxisAlignedBB box, float red, float green, float blue, float alpha)
    {
        drawBoundingBox(box.minX, box.minY, box.minZ, box.maxX, box.maxY, box.maxZ, red, green, blue, alpha);
    }
    
    public static void drawBoundingBox(double minX, double minY, double minZ, double maxX, double maxY, double maxZ, float red, float green, float blue, float alpha)
    {
        Tessellator t = Tessellator.getInstance();
        BufferBuilder b1 = t.getBuffer();
        b1.begin(3, DefaultVertexFormats.POSITION_COLOR);
        drawBoundingBox(b1, minX, minY, minZ, maxX, maxY, maxZ, red, green, blue, alpha);
        t.draw();
    }
    
    public static void drawBoundingBox(BufferBuilder b1, double minX, double minY, double minZ, double maxX, double maxY, double maxZ, float red, float green, float blue, float alpha)
    {
        b1.pos(minX, minY, minZ).color(red, green, blue, 0.0F).endVertex();
        b1.pos(minX, minY, minZ).color(red, green, blue, alpha).endVertex();
        b1.pos(maxX, minY, minZ).color(red, green, blue, alpha).endVertex();
        b1.pos(maxX, minY, maxZ).color(red, green, blue, alpha).endVertex();
        b1.pos(minX, minY, maxZ).color(red, green, blue, alpha).endVertex();
        b1.pos(minX, minY, minZ).color(red, green, blue, alpha).endVertex();
        b1.pos(minX, maxY, minZ).color(red, green, blue, alpha).endVertex();
        b1.pos(maxX, maxY, minZ).color(red, green, blue, alpha).endVertex();
        b1.pos(maxX, maxY, maxZ).color(red, green, blue, alpha).endVertex();
        b1.pos(minX, maxY, maxZ).color(red, green, blue, alpha).endVertex();
        b1.pos(minX, maxY, minZ).color(red, green, blue, alpha).endVertex();
        b1.pos(minX, maxY, maxZ).color(red, green, blue, 0.0F).endVertex();
        b1.pos(minX, minY, maxZ).color(red, green, blue, alpha).endVertex();
        b1.pos(maxX, maxY, maxZ).color(red, green, blue, 0.0F).endVertex();
        b1.pos(maxX, minY, maxZ).color(red, green, blue, alpha).endVertex();
        b1.pos(maxX, maxY, minZ).color(red, green, blue, 0.0F).endVertex();
        b1.pos(maxX, minY, minZ).color(red, green, blue, alpha).endVertex();
        b1.pos(maxX, minY, minZ).color(red, green, blue, 0.0F).endVertex();
    }
        
    // Get block damage state
    
    private float getBlockDamage(EntityPlayer entityIn, double d0, double d1, double d2)
    {
        if (!this.damagedBlocks.isEmpty())
        {
        	Iterator<DestroyBlockProgress> iterator = this.damagedBlocks.values().iterator();
        	
        	while(iterator.hasNext())
        	{
                DestroyBlockProgress destroyblockprogress = iterator.next();
                BlockPos blockpos = destroyblockprogress.getPosition();
                double d3 = (double)blockpos.getX() - d0;
                double d4 = (double)blockpos.getY() - d1;
                double d5 = (double)blockpos.getZ() - d2;
                Block block = entityIn.getEntityWorld().getBlockState(blockpos).getBlock();
                TileEntity te = entityIn.getEntityWorld().getTileEntity(blockpos);
                
                boolean hasBreak = block instanceof BlockChest || block instanceof BlockEnderChest || block instanceof BlockSign || block instanceof BlockSkull;
                if (!hasBreak) hasBreak = te != null && te.canRenderBreaking();
                
                if(!hasBreak)
                {
                    if (d3 * d3 + d4 * d4 + d5 * d5 > 1024.0D)
                    {
                        iterator.remove();
                    }
                    else
                    {
                    	IBlockState iblockstate = entityIn.getEntityWorld().getBlockState(blockpos);
                    	
                    	if(iblockstate.getMaterial() != Material.AIR)
                    	{
                    		float f = (float) destroyblockprogress.getPartialBlockDamage();
                    		return f;
                    	}
                    }
                }
        	}
        }
        return 0.0F;
    }
}

 

 

[fuzzybat23]

I've even tried this, and it still doesn't seem to return the block damage progress. 

 

    private static float getBlockDamage(EntityPlayer player, RayTraceResult rtr)
    {
    	try
    	{
    		Field f;
    		try
    		{
    			f = RenderGlobal.class.getDeclaredField("damagedBlocks");
    		}
    		catch (NoSuchFieldException e)
    		{
    			f = RenderGlobal.class.getDeclaredField("field_72738_E");
    		}
    		
    		f.setAccessible(true);
    	    Map<Integer, DestroyBlockProgress> damagedBlocks = Maps.<Integer, DestroyBlockProgress>newHashMap();
    	    f.get(Minecraft.getMinecraft().renderGlobal);
    	    
    		for (Entry<Integer, DestroyBlockProgress> entry : damagedBlocks.entrySet())
    		{
    			DestroyBlockProgress destroyblockprogress = entry.getValue();
    			if (destroyblockprogress.getPosition().equals(rtr.getBlockPos()))
    			{
    				if (destroyblockprogress.getPartialBlockDamage() >= 0 && destroyblockprogress.getPartialBlockDamage() <= 10)
    				{
    					return destroyblockprogress.getPartialBlockDamage() / 10.0F;
    				}
    			}
    		}
    	}
    	catch (Exception e)
    	{
    		e.printStackTrace();
    	}
    	return 0.0F;
    }

 

[fuzzybat23]

So instead of

Field f;

it should read

static final Field f;

That sound about right?

[fuzzybat23]

Nope, adding static and final to Field just threw a bunch of errors in my face.

static final Field f;  <--  Illegal modifier for the variable f; only final is permitted

final Field f;
    		try
    		{
    			f = RenderGlobal.class.getDeclaredField("damagedBlocks");
    		}
    		catch (NoSuchFieldException e)
    		{
    			f = RenderGlobal.class.getDeclaredField("field_72738_E");  <--  The final local variable f may already have been assigned
    		}

Though.. with a try, you can't load both the first value and the exception value, right?  It's a one or the other, like an If else clause.

[fuzzybat23]

I think I may have found the problem, but I'm not sure how to fix it.  The version 1.8 code looked like this ->

 

HashMap<Integer, DestroyBlockProgress> map = (HashMap<Integer, DestroyBlockProgress>) f.get(Minecraft.getMinecraft().renderGlobal);

I split that into two lines like this when I was rewriting it ->
  
Map<Integer, DestroyBlockProgress> damagedBlocks = Maps.<Integer, DestroyBlockProgress>newHashMap();
f.get(Minecraft.getMinecraft().renderGlobal);
  

 

I tried combining the two lines like in the original code, but that only threw an error.

 Map<Integer, DestroyBlockProgress> damagedBlocks = Maps.<Integer, DestroyBlockProgress>newHashMap() f.get(Minecraft.getMinecraft().renderGlobal);

Syntax error, insert ";" to complete LocalVariableDeclarationStatement
    	    

 

[Leviathan143]

  On 7/6/2017 at 9:06 AM, fuzzybat23 said:

Nope, adding static and final to Field just threw a bunch of errors in my face.

static final Field f;  <--  Illegal modifier for the variable f; only final is permitted

final Field f;
    		try
    		{
    			f = RenderGlobal.class.getDeclaredField("damagedBlocks");
    		}
    		catch (NoSuchFieldException e)
    		{
    			f = RenderGlobal.class.getDeclaredField("field_72738_E");  <--  The final local variable f may already have been assigned
    		}

Though.. with a try, you can't load both the first value and the exception value, right?  It's a one or the other, like an If else clause.

Expand  

Local variables cannot be static. You need to use a member variable instead. Reflection is expensive, so you want to reflect efficiently. Method, Field, Class, etc objects obtained via reflection only need to be obtained once for a class and its children. So you should only obtain them once and then store them.

 

Also, you should be using ReflectionHelper to get the Field objects. It allows you to deal with obfuscation much more easily as all its methods take an array of names for the field/class/whatever, if it can't find the thing under one name it tries the next one.

 

You may be interested in knowing about the try statement's finally block.

Edited July 6, 2017 by Leviathan143
Mention finally block

[fuzzybat23]

You have to forgive me, I'm kinda learning this as I go, crash course   Crash being the keyword here.  Heh, anyway.. local variables,  So I'd need to declare final static Field f; in my main class, then?

 

public class whatever {
	final static Field f;


	private static float getBlockDamage()
	{
		    try
    		{
    			f = RenderGlobal.class.getDeclaredField("damagedBlocks");
    		}
    		catch (NoSuchFieldException e)
    		{
    			f = RenderGlobal.class.getDeclaredField("field_72738_E");
    		}
	}
}

 

[Leviathan143]

  On 7/6/2017 at 9:49 AM, fuzzybat23 said:

You have to forgive me, I'm kinda learning this as I go, crash course   Crash being the keyword here.  Heh, anyway.. local variables,  So I'd need to declare final static Field f; in my main class, then?

 

public class whatever {
	final static Field f;


	private static float getBlockDamage()
	{
		    try
    		{
    			f = RenderGlobal.class.getDeclaredField("damagedBlocks");
    		}
    		catch (NoSuchFieldException e)
    		{
    			f = RenderGlobal.class.getDeclaredField("field_72738_E");
    		}
	}
}

 

Expand  

Learning as you go is a very bad idea. I know, I did it, it was not enjoyable. 

 

Go learn Java properly. Start with Hello World and build up from there. You will find this much easier once you've done that.

Oracle has some excellent tutorials here and here.

Edited July 6, 2017 by Leviathan143

[fuzzybat23]

I'm doing pretty well learning as I go.  I' ma fast learner when it comes to code.  Either way I figured it out on my own.  I should've been using this all along:

HashMap<Integer, DestroyBlockProgress> damagedBlock = (HashMap<Integer, DestroyBlockProgress>) f.get(Minecraft.getMinecraft().renderGlobal);

I had the wrong library imported, using Map instead of Hashmap