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- package me.km.blocks;
- import com.google.common.collect.Sets;
- import java.util.List;
- import java.util.Random;
- import java.util.Set;
- import me.km.utils.ReflectionUtils;
- import net.minecraft.block.Block;
- import net.minecraft.block.material.Material;
- import net.minecraft.block.state.IBlockState;
- import net.minecraft.enchantment.EnchantmentProtection;
- import net.minecraft.entity.Entity;
- import net.minecraft.entity.EntityLivingBase;
- import net.minecraft.entity.item.EntityTNTPrimed;
- import net.minecraft.entity.player.EntityPlayer;
- import net.minecraft.init.Blocks;
- import net.minecraft.init.SoundEvents;
- import net.minecraft.util.DamageSource;
- import net.minecraft.util.EnumParticleTypes;
- import net.minecraft.util.SoundCategory;
- import net.minecraft.util.math.AxisAlignedBB;
- import net.minecraft.util.math.BlockPos;
- import net.minecraft.util.math.MathHelper;
- import net.minecraft.util.math.Vec3d;
- import net.minecraft.world.Explosion;
- import net.minecraft.world.World;
- import net.minecraftforge.event.world.ExplosionEvent;
- import net.minecraftforge.fml.common.eventhandler.EventPriority;
- import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
- public class BlockEvents
- {
- @SubscribeEvent(receiveCanceled = false, priority = EventPriority.LOWEST)
- public void onExplosion(ExplosionEvent.Start e)
- {
- Explosion ex = e.getExplosion();
- Entity ent = ReflectionUtils.getExploder(ex);
- if(ReflectionUtils.getSize(ex) > 10)
- {
- ReflectionUtils.setSize(ex, 10);
- }
- e.setCanceled(true);
- doExplosionA(ex, e.getWorld(), ent instanceof EntityTNTPrimed);
- doExplosionB(ex, e.getWorld(), true);
- }
-
- public void doExplosionA(Explosion ex, World w, boolean tnt)
- {
- Set<BlockPos> set = Sets.<BlockPos>newHashSet();
- int i = 16;
- Vec3d v = ex.getPosition();
- float explosionSize = ReflectionUtils.getSize(ex);
- Entity exploder = ReflectionUtils.getExploder(ex);
- for(int j = 0; j < 16; ++j)
- {
- for(int k = 0; k < 16; ++k)
- {
- for(int l = 0; l < 16; ++l)
- {
- if(j == 0 || j == 15 || k == 0 || k == 15 || l == 0 || l == 15)
- {
- double d0 = j / 15f * 2 - 1;
- double d1 = k / 15f * 2 - 1;
- double d2 = l / 15f * 2 - 1;
- double d3 = Math.sqrt(d0 * d0 + d1 * d1 + d2 * d2);
- d0 = d0 / d3;
- d1 = d1 / d3;
- d2 = d2 / d3;
- float f = explosionSize * (0.7f + w.rand.nextFloat() * 0.6f);
- double d4 = v.x;
- double d6 = v.y;
- double d8 = v.z;
- for(float f1 = 0.3F; f > 0.0F; f -= 0.22500001F)
- {
- BlockPos blockpos = new BlockPos(d4, d6, d8);
- IBlockState iblockstate = w.getBlockState(blockpos);
- if (iblockstate.getMaterial() != Material.AIR)
- {
- float f2 = exploder != null ? exploder.getExplosionResistance(ex, w, blockpos, iblockstate) : iblockstate.getBlock().getExplosionResistance(w, blockpos, null, ex);
- // TNT hook
- if(tnt && f2 <= 10)
- {
- f2 = Math.min(f2, 1);
- }
- // end
- f -= (f2 + 0.3F) * 0.3F;
- }
- if (f > 0.0F && (exploder == null || exploder.canExplosionDestroyBlock(ex, w, blockpos, iblockstate, f)))
- {
- set.add(blockpos);
- }
- d4 += d0 * 0.3d;
- d6 += d1 * 0.3d;
- d8 += d2 * 0.3d;
- }
- }
- }
- }
- }
- ex.getAffectedBlockPositions().addAll(set);
- float f3 = explosionSize * 2;
- int k1 = MathHelper.floor(v.x - f3 - 1);
- int l1 = MathHelper.floor(v.x + f3 + 1);
- int i2 = MathHelper.floor(v.y - f3 - 1);
- int i1 = MathHelper.floor(v.y + f3 + 1);
- int j2 = MathHelper.floor(v.z - f3 - 1);
- int j1 = MathHelper.floor(v.z + f3 + 1);
- List<Entity> list = w.getEntitiesWithinAABBExcludingEntity(exploder, new AxisAlignedBB(k1, i2, j2, l1, i1, j1));
- net.minecraftforge.event.ForgeEventFactory.onExplosionDetonate(w, ex, list, f3);
- Vec3d vec3d = new Vec3d(v.x, v.y, v.z);
- for(int k2 = 0; k2 < list.size(); k2++)
- {
- Entity entity = list.get(k2);
- if(!entity.isImmuneToExplosions())
- {
- double d12 = entity.getDistance(v.x, v.y, v.z) / f3;
- if(d12 <= 1.0D)
- {
- double d5 = entity.posX - v.x;
- double d7 = entity.posY + (double)entity.getEyeHeight() - v.y;
- double d9 = entity.posZ - v.z;
- double d13 = MathHelper.sqrt(d5 * d5 + d7 * d7 + d9 * d9);
- if(d13 != 0.0D)
- {
- d5 = d5 / d13;
- d7 = d7 / d13;
- d9 = d9 / d13;
- double d14 = w.getBlockDensity(vec3d, entity.getEntityBoundingBox());
- double d10 = (1.0D - d12) * d14;
- entity.attackEntityFrom(DamageSource.causeExplosionDamage(ex), (float)((int)((d10 * d10 + d10) / 2 * 7 * f3 + 1)));
- double d11 = d10;
- if(entity instanceof EntityLivingBase)
- {
- d11 = EnchantmentProtection.getBlastDamageReduction((EntityLivingBase) entity, d10);
- }
- entity.motionX += d5 * d11;
- entity.motionY += d7 * d11;
- entity.motionZ += d9 * d11;
- if (entity instanceof EntityPlayer)
- {
- EntityPlayer entityplayer = (EntityPlayer)entity;
- if (!entityplayer.isSpectator() && (!entityplayer.isCreative() || !entityplayer.capabilities.isFlying))
- {
- ex.getPlayerKnockbackMap().put(entityplayer, new Vec3d(d5 * d10, d7 * d10, d9 * d10));
- }
- }
- }
- }
- }
- }
- }
-
- private void doExplosionB(Explosion ex, World w, boolean spawnParticles)
- {
- Vec3d v = ex.getPosition();
- double x = v.x;
- double y = v.y;
- double z = v.z;
- w.playSound(null, x, y, z, SoundEvents.ENTITY_GENERIC_EXPLODE, SoundCategory.BLOCKS, 4, (1 + (w.rand.nextFloat() - w.rand.nextFloat()) * 0.2f) * 0.7f);
- if(ReflectionUtils.getSize(ex) >= 2 && ReflectionUtils.isSmoking(ex))
- {
- w.spawnParticle(EnumParticleTypes.EXPLOSION_HUGE, x, y, z, 1, 0, 0, new int[0]);
- }
- else
- {
- w.spawnParticle(EnumParticleTypes.EXPLOSION_LARGE, x, y, z, 1, 0, 0, new int[0]);
- }
- if(ReflectionUtils.isSmoking(ex))
- {
- float explosionSize = ReflectionUtils.getSize(ex);
- ex.getAffectedBlockPositions().stream().forEach(blockpos ->
- {
- IBlockState iblockstate = w.getBlockState(blockpos);
- Block block = iblockstate.getBlock();
- if(spawnParticles)
- {
- double d0 = blockpos.getX() + w.rand.nextFloat();
- double d1 = blockpos.getY() + w.rand.nextFloat();
- double d2 = blockpos.getZ() + w.rand.nextFloat();
- double d3 = d0 - x;
- double d4 = d1 - y;
- double d5 = d2 - z;
- double d6 = MathHelper.sqrt(d3 * d3 + d4 * d4 + d5 * d5);
- d3 = d3 / d6;
- d4 = d4 / d6;
- d5 = d5 / d6;
- double d7 = 0.5D / (d6 / explosionSize + 0.1D);
- d7 = d7 * (w.rand.nextFloat() * w.rand.nextFloat() + 0.3F);
- d3 = d3 * d7;
- d4 = d4 * d7;
- d5 = d5 * d7;
- w.spawnParticle(EnumParticleTypes.EXPLOSION_NORMAL, (d0 + x) / 2, (d1 + y) / 2, (d2 + z) / 2, d3, d4, d5, new int[0]);
- w.spawnParticle(EnumParticleTypes.SMOKE_NORMAL, d0, d1, d2, d3, d4, d5, new int[0]);
- }
- if(iblockstate.getMaterial() != Material.AIR)
- {
- if(block.canDropFromExplosion(ex))
- {
- block.dropBlockAsItem(w, blockpos, w.getBlockState(blockpos), 0);
- }
- block.onBlockExploded(w, blockpos, ex);
- }
- });
- }
- if(ReflectionUtils.isFlaming(ex))
- {
- Random rand = ReflectionUtils.getRandom(ex);
- ex.getAffectedBlockPositions().stream()
- .filter(pos -> (w.getBlockState(pos).getMaterial() == Material.AIR &&
- w.getBlockState(pos.down()).isFullBlock() &&
- rand.nextInt(3) == 0))
- .forEach(pos -> w.setBlockState(pos, Blocks.FIRE.getDefaultState()));
- }
- }
- }
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