package net.minecraft.server;

import java.util.Calendar;

public class EntityBat extends EntityAmbient {

    private BlockPosition a;

    public EntityBat(World world) {
        super(world);
        this.setSize(0.5F, 0.9F);
        this.setAsleep(true);
    }

    protected void h() {
        super.h();
        this.datawatcher.a(16, new Byte((byte) 0));
    }

    protected float bB() {
        return 0.1F;
    }

    protected float bC() {
        return super.bC() * 0.95F;
    }

    protected String z() {
        return this.isAsleep() && this.random.nextInt(4) != 0 ? null : "mob.bat.idle";
    }

    protected String bo() {
        return "mob.bat.hurt";
    }

    protected String bp() {
        return "mob.bat.death";
    }

    public boolean ae() {
        return false;
    }

    protected void s(Entity entity) {}

    protected void bL() {}

    protected void initAttributes() {
        super.initAttributes();
        this.getAttributeInstance(GenericAttributes.maxHealth).setValue(6.0D);
    }

    public boolean isAsleep() {
        return (this.datawatcher.getByte(16) & 1) != 0;
    }

    public void setAsleep(boolean flag) {
        byte b0 = this.datawatcher.getByte(16);

        if (flag) {
            this.datawatcher.watch(16, Byte.valueOf((byte) (b0 | 1)));
        } else {
            this.datawatcher.watch(16, Byte.valueOf((byte) (b0 & -2)));
        }

    }

    public void t_() {
        super.t_();
        if (this.isAsleep()) {
            this.motX = this.motY = this.motZ = 0.0D;
            this.locY = (double) MathHelper.floor(this.locY) + 1.0D - (double) this.length;
        } else {
            this.motY *= 0.6000000238418579D;
        }

    }

    protected void E() {
        super.E();
        BlockPosition blockposition = new BlockPosition(this);
        BlockPosition blockposition1 = blockposition.up();

        if (this.isAsleep()) {
            if (!this.world.getType(blockposition1).getBlock().isOccluding()) {
                this.setAsleep(false);
                this.world.a((EntityHuman) null, 1015, blockposition, 0);
            } else {
                if (this.random.nextInt(200) == 0) {
                    this.aK = (float) this.random.nextInt(360);
                }

                if (this.world.findNearbyPlayer(this, 4.0D) != null) {
                    this.setAsleep(false);
                    this.world.a((EntityHuman) null, 1015, blockposition, 0);
                }
            }
        } else {
            if (this.a != null && (!this.world.isEmpty(this.a) || this.a.getY() < 1)) {
                this.a = null;
            }

            if (this.a == null || this.random.nextInt(30) == 0 || this.a.c((double) ((int) this.locX), (double) ((int) this.locY), (double) ((int) this.locZ)) < 4.0D) {
                this.a = new BlockPosition((int) this.locX + this.random.nextInt(7) - this.random.nextInt(7), (int) this.locY + this.random.nextInt(6) - 2, (int) this.locZ + this.random.nextInt(7) - this.random.nextInt(7));
            }

            double d0 = (double) this.a.getX() + 0.5D - this.locX;
            double d1 = (double) this.a.getY() + 0.1D - this.locY;
            double d2 = (double) this.a.getZ() + 0.5D - this.locZ;

            this.motX += (Math.signum(d0) * 0.5D - this.motX) * 0.10000000149011612D;
            this.motY += (Math.signum(d1) * 0.699999988079071D - this.motY) * 0.10000000149011612D;
            this.motZ += (Math.signum(d2) * 0.5D - this.motZ) * 0.10000000149011612D;
            float f = (float) (MathHelper.b(this.motZ, this.motX) * 180.0D / 3.1415927410125732D) - 90.0F;
            float f1 = MathHelper.g(f - this.yaw);

            this.ba = 0.5F;
            this.yaw += f1;
            if (this.random.nextInt(100) == 0 && this.world.getType(blockposition1).getBlock().isOccluding()) {
                this.setAsleep(true);
            }
        }

    }

    protected boolean s_() {
        return false;
    }

    public void e(float f, float f1) {}

    protected void a(double d0, boolean flag, Block block, BlockPosition blockposition) {}

    public boolean aI() {
        return true;
    }

    public boolean damageEntity(DamageSource damagesource, float f) {
        if (this.isInvulnerable(damagesource)) {
            return false;
        } else {
            if (!this.world.isClientSide && this.isAsleep()) {
                this.setAsleep(false);
            }

            return super.damageEntity(damagesource, f);
        }
    }

    public void a(NBTTagCompound nbttagcompound) {
        super.a(nbttagcompound);
        this.datawatcher.watch(16, Byte.valueOf(nbttagcompound.getByte("BatFlags")));
    }

    public void b(NBTTagCompound nbttagcompound) {
        super.b(nbttagcompound);
        nbttagcompound.setByte("BatFlags", this.datawatcher.getByte(16));
    }

    public boolean bR() {
        BlockPosition blockposition = new BlockPosition(this.locX, this.getBoundingBox().b, this.locZ);

        if (blockposition.getY() >= this.world.F()) {
            return false;
        } else {
            int i = this.world.getLightLevel(blockposition);
            byte b0 = 4;

            if (this.a(this.world.Y())) {
                b0 = 7;
            } else if (this.random.nextBoolean()) {
                return false;
            }

            return i > this.random.nextInt(b0) ? false : super.bR();
        }
    }

    private boolean a(Calendar calendar) {
        return calendar.get(2) + 1 == 10 && calendar.get(5) >= 20 || calendar.get(2) + 1 == 11 && calendar.get(5) <= 3;
    }

    public float getHeadHeight() {
        return this.length / 2.0F;
    }
}