EntityFlying.java

package net.minecraft.entity;

import net.minecraft.block.Block;
import net.minecraft.util.BlockPos;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

public abstract class EntityFlying extends EntityLiving
{
    private static final String __OBFID = "CL_00001545";

    public EntityFlying(World worldIn)
    {
        super(worldIn);
    }

    public void fall(float distance, float damageMultiplier) {}

    protected void func_180433_a(double p_180433_1_, boolean p_180433_3_, Block p_180433_4_, BlockPos p_180433_5_) {}

    /**
     * Moves the entity based on the specified heading.  Args: strafe, forward
     */
    public void moveEntityWithHeading(float p_70612_1_, float p_70612_2_)
    {
        if (this.isInWater())
        {
            this.moveFlying(p_70612_1_, p_70612_2_, 0.02F);
            this.moveEntity(this.motionX, this.motionY, this.motionZ);
            this.motionX *= 0.800000011920929D;
            this.motionY *= 0.800000011920929D;
            this.motionZ *= 0.800000011920929D;
        }
        else if (this.func_180799_ab())
        {
            this.moveFlying(p_70612_1_, p_70612_2_, 0.02F);
            this.moveEntity(this.motionX, this.motionY, this.motionZ);
            this.motionX *= 0.5D;
            this.motionY *= 0.5D;
            this.motionZ *= 0.5D;
        }
        else
        {
            float var3 = 0.91F;

            if (this.onGround)
            {
                var3 = this.worldObj.getBlockState(new BlockPos(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.getEntityBoundingBox().minY) - 1, MathHelper.floor_double(this.posZ))).getBlock().slipperiness * 0.91F;
            }

            float var4 = 0.16277136F / (var3 * var3 * var3);
            this.moveFlying(p_70612_1_, p_70612_2_, this.onGround ? 0.1F * var4 : 0.02F);
            var3 = 0.91F;

            if (this.onGround)
            {
                var3 = this.worldObj.getBlockState(new BlockPos(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.getEntityBoundingBox().minY) - 1, MathHelper.floor_double(this.posZ))).getBlock().slipperiness * 0.91F;
            }

            this.moveEntity(this.motionX, this.motionY, this.motionZ);
            this.motionX *= (double)var3;
            this.motionY *= (double)var3;
            this.motionZ *= (double)var3;
        }

        this.prevLimbSwingAmount = this.limbSwingAmount;
        double var8 = this.posX - this.prevPosX;
        double var5 = this.posZ - this.prevPosZ;
        float var7 = MathHelper.sqrt_double(var8 * var8 + var5 * var5) * 4.0F;

        if (var7 > 1.0F)
        {
            var7 = 1.0F;
        }

        this.limbSwingAmount += (var7 - this.limbSwingAmount) * 0.4F;
        this.limbSwing += this.limbSwingAmount;
    }

    /**
     * returns true if this entity is by a ladder, false otherwise
     */
    public boolean isOnLadder()
    {
        return false;
    }
}