public void moveEntityWithHeading(float var1, float var2) {
      if(this.isInWater()) {
         this.moveFlying(var1, var2, 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.handleLavaMovement()) {
         this.moveFlying(var1, var2, 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 = 0.54600006F;
            int var4 = this.worldObj.getBlockId(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.boundingBox.minY) - 1, MathHelper.floor_double(this.posZ));
            if(var4 > 0) {
               var3 = Block.blocksList[var4].slipperiness * 0.91F;
            }
         }

         float var8 = 0.16277136F / (var3 * var3 * var3);
         this.moveFlying(var1, var2, this.onGround?0.1F * var8:0.02F);
         var3 = 0.91F;
         if(this.onGround) {
            var3 = 0.54600006F;
            int var5 = this.worldObj.getBlockId(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.boundingBox.minY) - 1, MathHelper.floor_double(this.posZ));
            if(var5 > 0) {
               var3 = Block.blocksList[var5].slipperiness * 0.91F;
            }
         }

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

      this.field_705_Q = this.field_704_R;
      double var10 = this.posX - this.prevPosX;
      double var9 = this.posZ - this.prevPosZ;
      float var7 = MathHelper.sqrt_double(var10 * var10 + var9 * var9) * 4.0F;
      if(var7 > 1.0F) {
         var7 = 1.0F;
      }

      this.field_704_R += (var7 - this.field_704_R) * 0.4F;
      this.field_703_S += this.field_704_R;
   }