public static List func_77513_b(Random p_77513_0_, ItemStack p_77513_1_, int p_77513_2_) {
Item var3 = p_77513_1_.func_77973_b();
int var4 = var3.func_77619_b();
if (var4 <= 0) {
return null;
} else {
var4 /= 2;
var4 = 1 + p_77513_0_.nextInt((var4 >> 1) + 1) + p_77513_0_.nextInt((var4 >> 1) + 1);
int var5 = var4 + p_77513_2_;
float var6 = (p_77513_0_.nextFloat() + p_77513_0_.nextFloat() - 1.0F) * 0.15F;
int var7 = (int) ((float) var5 * (1.0F + var6) + 0.5F);
if (var7 < 1) {
var7 = 1;
}
ArrayList var8 = null;
Map var9 = func_77505_b(var7, p_77513_1_);
if (var9 != null && !var9.isEmpty()) {
EnchantmentData var10 =
(EnchantmentData) WeightedRandom.func_76271_a(p_77513_0_, var9.values());
if (var10 != null) {
var8 = new ArrayList();
var8.add(var10);
for (int var11 = var7; p_77513_0_.nextInt(50) <= var11; var11 >>= 1) {
Iterator var12 = var9.keySet().iterator();
while (var12.hasNext()) {
Integer var13 = (Integer) var12.next();
boolean var14 = true;
Iterator var15 = var8.iterator();
while (true) {
if (var15.hasNext()) {
EnchantmentData var16 = (EnchantmentData) var15.next();
if (var16.field_76302_b.func_77326_a(
Enchantment.field_77331_b[var13.intValue()])) {
continue;
}
var14 = false;
}
if (!var14) {
var12.remove();
}
break;
}
}
if (!var9.isEmpty()) {
EnchantmentData var17 =
(EnchantmentData) WeightedRandom.func_76271_a(p_77513_0_, var9.values());
var8.add(var17);
}
}
}
}
return var8;
}
}
