6 files changed, 31 insertions, 4 deletions
diff --git a/ihl/utils/BlockItemRender.java b/ihl/utils/BlockItemRender.java
index 5a0c6de..870ab21 100644
--- a/ihl/utils/BlockItemRender.java
+++ b/ihl/utils/BlockItemRender.java
@@ -16,6 +16,10 @@ import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.client.IItemRenderer;
 import org.lwjgl.opengl.GL11;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
+@SideOnly(value = Side.CLIENT)
 public class BlockItemRender implements IItemRenderer{
 	private ModelBase model;
 	private ResourceLocation tex;
@@ -86,6 +90,10 @@ public void renderItem(ItemRenderType type, ItemStack item, Object... data) {
 	IHLItemBlock bItem =(IHLItemBlock) item.getItem();
 	Block block = bItem.getBlockContained();
 	GL11.glScalef(1F, -1F+amendment, -1F);
+	if(item.stackTagCompound!=null && item.stackTagCompound.hasKey("colour")){
+		int colour = item.stackTagCompound.getInteger("colour");
+		GL11.glColor4f((colour>>>16)/255f,((colour>>>8)&255)/255f, (colour&255)/255f,1f);
+	}
 	switch (type) {
 		case ENTITY:
 		    GL11.glTranslatef(0,-1.5F,0);
@@ -151,6 +159,10 @@ public void renderItem(ItemRenderType type, ItemStack item, Object... data) {
 			    GL11.glTranslatef(0.0F,0.2F,0F);
 			}
 		    GL11.glTranslatef(-0.25F,-2.0F-amendment,0F);
+			if(item.stackTagCompound!=null && item.stackTagCompound.hasKey("colour")){
+				int colour = item.stackTagCompound.getInteger("colour");
+				GL11.glColor4f((colour>>>16)/255f,((colour>>>8)&255)/255f, (colour&255)/255f,1f);
+			}
 		    if(model!=null)
 		    {
 		    	for(int i = this.renderFrom;i<model.boxList.size()-this.renderTo;i++)
diff --git a/ihl/utils/GuiMultiTextureButton.java b/ihl/utils/GuiMultiTextureButton.java
index eb160cd..009c57f 100644
--- a/ihl/utils/GuiMultiTextureButton.java
+++ b/ihl/utils/GuiMultiTextureButton.java
@@ -2,10 +2,13 @@ package ihl.utils;
 
 import org.lwjgl.opengl.GL11;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.util.ResourceLocation;
 
+@SideOnly(value = Side.CLIENT)
 public class GuiMultiTextureButton extends GuiButton {
 
     private ResourceLocation texture;
diff --git a/ihl/utils/IHLItemRenderer.java b/ihl/utils/IHLItemRenderer.java
index 38e98b2..2ebbdb1 100644
--- a/ihl/utils/IHLItemRenderer.java
+++ b/ihl/utils/IHLItemRenderer.java
@@ -5,6 +5,8 @@ import java.util.Random;
 import org.lwjgl.opengl.GL11;
 import org.lwjgl.opengl.GL12;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 import net.minecraft.block.Block;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.renderer.ItemRenderer;
@@ -23,6 +25,7 @@ import net.minecraftforge.client.IItemRenderer;
 import net.minecraftforge.client.MinecraftForgeClient;
 import net.minecraftforge.client.IItemRenderer.ItemRenderType;
 
+@SideOnly(value = Side.CLIENT)
 public class IHLItemRenderer {
 	private Random random = new Random();
     private RenderBlocks renderBlocks = new RenderBlocks();
diff --git a/ihl/utils/IHLMathUtils.java b/ihl/utils/IHLMathUtils.java
index 47f3913..8cab3c9 100644
--- a/ihl/utils/IHLMathUtils.java
+++ b/ihl/utils/IHLMathUtils.java
@@ -6,12 +6,12 @@ public class IHLMathUtils {
 
 	public static float sqrt(float value) {
 		float value1 = value;
-		int multiplier = 2;
+		int multiplier = 1;
 		while (value1 >= 1.0f) {
-			multiplier *= multiplier;
-			value1 /= multiplier * multiplier;
+			multiplier=multiplier<<2;
+			value1 = value / (multiplier * multiplier);
 		}
-		return ((multiplier > 2) ? multiplier : 1) * sqrt_table[(int) (value1 * accuracy_level)];
+		return multiplier * sqrt_table[(int) (value1 * accuracy_level)];
 	}
 
 	public static float[] vector_vector_multiply(float[] v1, float[] v2) {
diff --git a/ihl/utils/IHLRenderUtils.java b/ihl/utils/IHLRenderUtils.java
index af5fe2a..d0d13f4 100644
--- a/ihl/utils/IHLRenderUtils.java
+++ b/ihl/utils/IHLRenderUtils.java
@@ -9,6 +9,8 @@ import java.util.Map;
 import org.lwjgl.opengl.GL11;
 
 import cpw.mods.fml.common.eventhandler.SubscribeEvent;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 import ic2.core.util.DrawUtil;
 import ihl.IHLMod;
 import net.minecraft.block.Block;
@@ -30,6 +32,7 @@ import net.minecraftforge.common.util.ForgeDirection;
 import net.minecraftforge.fluids.Fluid;
 import net.minecraftforge.fluids.FluidStack;
 
+@SideOnly(value = Side.CLIENT)
 public class IHLRenderUtils 
 {
    private FloatBuffer colorBuffer;
diff --git a/ihl/utils/IHLUtils.java b/ihl/utils/IHLUtils.java
index f47673c..519f265 100644
--- a/ihl/utils/IHLUtils.java
+++ b/ihl/utils/IHLUtils.java
@@ -453,6 +453,12 @@ public class IHLUtils {
 	}
 
 	public static boolean isItemStacksIsEqual(ItemStack stack1, ItemStack stack2, boolean useOreDictionary) {
+		if(stack2==null && stack1==null){
+			return true;
+		}
+		else if(stack2==null || stack1==null){
+			return false;
+		}
 		if (useOreDictionary && isItemsHaveSameOreDictionaryEntry(stack1, stack2)) {
 			return true;
 		} else {