I am trying to create a darkened version of mycelium and I found that the vanilla MapColors are not the right color. I have no trouble making an instance of MapColor but it just appears transparent on the map. 

 

Util.java

package drmeepster.evilshrooms.util;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;

import net.minecraft.block.material.MapColor;

public final class Util {
	
	private Util(){}
	
	public static int getNextMapColor(){
		//Will only be -1 if array is full
		int out = -1;
		
		for(int i = 0; i < MapColor.COLORS.length; i++){
			if(MapColor.COLORS[i] == null){
				continue;
			}
			out = i;
			break;
		}
		
		return out;
	}
	
	public static MapColor newMapColor(int index, int color){
		Constructor<MapColor> constr;
		try{
			constr = MapColor.class.getDeclaredConstructor(int.class, int.class);
		}catch (NoSuchMethodException | SecurityException e) {
			e.printStackTrace();
			return null;
		}
		
		constr.setAccessible(true);
		
		try {
			return constr.newInstance(index, color);
		} catch (InstantiationException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
			e.printStackTrace();
			return null;
		}
	}
}

 

ModEvilShrooms.java

package drmeepster.evilshrooms;

import drmeepster.evilshrooms.blocks.EvilShroomBlocks;
import drmeepster.evilshrooms.util.TabEvilShroom;
import drmeepster.evilshrooms.util.Util;
import net.minecraft.block.material.MapColor;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;

@Mod(modid = ModEvilShrooms.MODID, useMetadata = true, dependencies = "after:drcorester")
public class ModEvilShrooms{
	
    public static final String MODID = "evilshrooms";
    public static final TabEvilShroom EVIL_SHROOM_TAB = new TabEvilShroom();
    public static MapColor colorShadowMycelium;
    
    @EventHandler
    public void preInit(FMLPreInitializationEvent event){
    	colorShadowMycelium = Util.newMapColor(Util.getNextMapColor(), 0x281538);
    	EvilShroomBlocks.preInit();
    }
    
    @EventHandler
    public void init(FMLInitializationEvent event){

    }
    
    @EventHandler
    public void postInit(FMLPostInitializationEvent event){

    }
}

 

Edited April 15, 20178 yr by DrMeepster

It appears my code for getting the next available index sucks. Wow.