Applied-Energistics-2-tiler.../hooks/AETrading.java

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package appeng.hooks;
import java.util.Random;
import net.minecraft.entity.passive.EntityVillager;
import net.minecraft.init.Items;
import net.minecraft.item.ItemStack;
import net.minecraft.village.MerchantRecipe;
import net.minecraft.village.MerchantRecipeList;
import appeng.api.AEApi;
import cpw.mods.fml.common.registry.VillagerRegistry.IVillageTradeHandler;
public class AETrading implements IVillageTradeHandler
{
private void addToList(MerchantRecipeList l, ItemStack a, ItemStack b)
{
if ( a.stackSize < 1 )
a.stackSize = 1;
if ( b.stackSize < 1 )
b.stackSize = 1;
if ( a.stackSize > a.getMaxStackSize() )
a.stackSize = a.getMaxStackSize();
if ( b.stackSize > b.getMaxStackSize() )
b.stackSize = b.getMaxStackSize();
l.add( new MerchantRecipe( a, b ) );
}
private void addTrade(MerchantRecipeList list, ItemStack a, ItemStack b, Random rand, int convertion_Variance)
{
// Sell
ItemStack From = a.copy();
ItemStack To = b.copy();
From.stackSize = 1 + (Math.abs( rand.nextInt() ) % (1 + convertion_Variance));
To.stackSize = 1;
addToList( list, From, To );
}
private void addMerchent(MerchantRecipeList list, ItemStack item, int emera, Random rand, int greed)
{
// Sell
ItemStack From = item.copy();
ItemStack To = new ItemStack( Items.emerald );
int multiplier = (Math.abs( rand.nextInt() ) % 6);
emera += (Math.abs( rand.nextInt() ) % greed) - multiplier;
int mood = rand.nextInt() % 2;
From.stackSize = multiplier + mood;
To.stackSize = multiplier * emera - mood;
if ( To.stackSize < 0 )
{
From.stackSize -= To.stackSize;
To.stackSize -= To.stackSize;
}
addToList( list, From, To );
// Buy
ItemStack reverseTo = From.copy();
ItemStack reverseFrom = To.copy();
reverseFrom.stackSize = (int) (reverseFrom.stackSize * (rand.nextFloat() * 3.0f + 1.0f));
reverseTo.stackSize = reverseTo.stackSize;
addToList( list, reverseFrom, reverseTo );
}
@Override
public void manipulateTradesForVillager(EntityVillager villager, MerchantRecipeList recipeList, Random random)
{
addMerchent( recipeList, AEApi.instance().materials().materialSilicon.stack( 1 ), 1, random, 2 );
addMerchent( recipeList, AEApi.instance().materials().materialCertusQuartzCrystal.stack( 1 ), 2, random, 4 );
addMerchent( recipeList, AEApi.instance().materials().materialCertusQuartzDust.stack( 1 ), 1, random, 3 );
addTrade( recipeList, AEApi.instance().materials().materialCertusQuartzDust.stack( 1 ),
AEApi.instance().materials().materialCertusQuartzCrystal.stack( 1 ), random, 2 );
}
}