Generating Ores

MOD_FILE CONTENTS (CREATINNG AND GENERATING ORE):

package net.minecraft.src;

import java.util.Random;

public class mod_tutorial extends BaseMod
{

    //Blocks

    public static final Block Fyrite = (new BlockFyrite(203, ModLoader.addOverride("/terrain.png","/Blocks/fyrite.png")).setHardness(3.0F).setResistance(1.0F).setBlockName("Fyrite"));

    //Items

    public static final Item FyriteCrystal = (new Item(1016).setItemName("FyriteCrystal"));

    public void load()
    {

        FyriteCrystal.iconIndex = ModLoader.addOverride("/gui/items.png","/Items/fyritecrystal.png");

        //Registering

        ModLoader.registerBlock(Fyrite);

        //Adding names

        ModLoader.addName(Fyrite, "Fyrite Ore");
        ModLoader.addName(FyriteCrystal, "Fyrite Crystal");

        //Crafting Recipes

        //Smelting Recipes

        //Shapeless Recipes


    }

    public void generateSurface(World world, Random random, int chunkX, int chunkZ)
    {
        for (int i = 0; i < 50; i++)
        {
            int randPosX = chunkX + random.nextInt(16);
            int randPosY = random.nextInt(128);
            int randPosZ = chunkZ + random.nextInt(16);
            (new WorldGenMinable(mod_tutorial.Fyrite.blockID, 60)).generate(world, random, randPosX, randPosY, randPosZ);
        }
    }


    public String getVersion()
    {
        return "1.2.5";
    }
}


ITEMPICKAXE CONTENTS(ALTERING HARVEST MECHANICS WITH TYPES OF PICKAXE):

package net.minecraft.src;

public class ItemPickaxe extends ItemTool
{
    private static Block blocksEffectiveAgainst[];

    protected ItemPickaxe(int par1, EnumToolMaterial par2EnumToolMaterial)
    {
        super(par1, 2, par2EnumToolMaterial, blocksEffectiveAgainst);
    }

    /**
     * Returns if the item (tool) can harvest results from the block type.
     */
    public boolean canHarvestBlock(Block par1Block)
    {
        if (par1Block == Block.obsidian)
        {
            return toolMaterial.getHarvestLevel() == 3;
        }

        if(par1Block == mod_tutorial.Fyrite)
        {
            return toolMaterial.getHarvestLevel() >= 2;
        }

        if (par1Block == Block.blockDiamond || par1Block == Block.oreDiamond)
        {
            return toolMaterial.getHarvestLevel() >= 2;
        }

        if(par1Block == mod_tutorial.Fyrite)
        {
            return toolMaterial.getHarvestLevel() >= 2;
        }

        if (par1Block == Block.blockGold || par1Block == Block.oreGold)
        {
            return toolMaterial.getHarvestLevel() >= 2;
        }

        if (par1Block == Block.blockSteel || par1Block == Block.oreIron)
        {
            return toolMaterial.getHarvestLevel() >= 1;
        }

        if (par1Block == Block.blockLapis || par1Block == Block.oreLapis)
        {
            return toolMaterial.getHarvestLevel() >= 1;
        }

        if (par1Block == Block.oreRedstone || par1Block == Block.oreRedstoneGlowing)
        {
            return toolMaterial.getHarvestLevel() >= 2;
        }

        if (par1Block.blockMaterial == Material.rock)
        {
            return true;
        }

        return par1Block.blockMaterial == Material.iron;
    }

    /**
     * Returns the strength of the stack against a given block. 1.0F base, (Quality+1)*2 if correct blocktype, 1.5F if
     * sword
     */
    public float getStrVsBlock(ItemStack par1ItemStack, Block par2Block)
    {
        if (par2Block != null && (par2Block.blockMaterial == Material.iron || par2Block.blockMaterial == Material.rock))
        {
            return efficiencyOnProperMaterial;
        }
        else
        {
            return super.getStrVsBlock(par1ItemStack, par2Block);
        }
    }

    static
    {
        blocksEffectiveAgainst = (new Block[]
                {
                    Block.cobblestone, Block.stairDouble, Block.stairSingle, Block.stone, Block.sandStone, Block.cobblestoneMossy, Block.oreIron, Block.blockSteel, Block.oreCoal, Block.blockGold,
                    Block.oreGold, Block.oreDiamond, Block.blockDiamond, Block.ice, Block.netherrack, Block.oreLapis, Block.blockLapis, Block.oreRedstone, Block.oreRedstoneGlowing, Block.rail,
                    Block.railDetector, Block.railPowered
                });
    }
}