001 package net.minecraft.src; 002 003 public class EntityMoveHelper 004 { 005 /** The EntityLiving that is being moved */ 006 private EntityLiving entity; 007 private double posX; 008 private double posY; 009 private double posZ; 010 011 /** The speed at which the entity should move */ 012 private float speed; 013 private boolean field_75643_f = false; 014 015 public EntityMoveHelper(EntityLiving par1EntityLiving) 016 { 017 this.entity = par1EntityLiving; 018 this.posX = par1EntityLiving.posX; 019 this.posY = par1EntityLiving.posY; 020 this.posZ = par1EntityLiving.posZ; 021 } 022 023 public boolean func_75640_a() 024 { 025 return this.field_75643_f; 026 } 027 028 public float getSpeed() 029 { 030 return this.speed; 031 } 032 033 /** 034 * Sets the speed and location to move to 035 */ 036 public void setMoveTo(double par1, double par3, double par5, float par7) 037 { 038 this.posX = par1; 039 this.posY = par3; 040 this.posZ = par5; 041 this.speed = par7; 042 this.field_75643_f = true; 043 } 044 045 public void onUpdateMoveHelper() 046 { 047 this.entity.setMoveForward(0.0F); 048 049 if (this.field_75643_f) 050 { 051 this.field_75643_f = false; 052 int var1 = MathHelper.floor_double(this.entity.boundingBox.minY + 0.5D); 053 double var2 = this.posX - this.entity.posX; 054 double var4 = this.posZ - this.entity.posZ; 055 double var6 = this.posY - (double)var1; 056 double var8 = var2 * var2 + var6 * var6 + var4 * var4; 057 058 if (var8 >= 2.500000277905201E-7D) 059 { 060 float var10 = (float)(Math.atan2(var4, var2) * 180.0D / Math.PI) - 90.0F; 061 this.entity.rotationYaw = this.func_75639_a(this.entity.rotationYaw, var10, 30.0F); 062 this.entity.setAIMoveSpeed(this.speed * this.entity.getSpeedModifier()); 063 064 if (var6 > 0.0D && var2 * var2 + var4 * var4 < 1.0D) 065 { 066 this.entity.getJumpHelper().setJumping(); 067 } 068 } 069 } 070 } 071 072 private float func_75639_a(float par1, float par2, float par3) 073 { 074 float var4 = MathHelper.wrapAngleTo180_float(par2 - par1); 075 076 if (var4 > par3) 077 { 078 var4 = par3; 079 } 080 081 if (var4 < -par3) 082 { 083 var4 = -par3; 084 } 085 086 return par1 + var4; 087 } 088 }