Making a block change state when a mob gets near?

[LaughingJackalMC]

hey I am making a mod and one of the blocks in it is a siren block. I have created it so there is 3 blocks, Siren_off, Siren_On and Siren_Active. Basically it changes to Siren_on when a redstone power is sent to it. However I would like the block to also change into Siren_Active when a mob, for instance a zombie gets near. I would also only like it to change into Siren_Active if it is at Siren_On. Is this possible?

[KeeperofMee]

Look in the beacons Tileentity in

func_146000_x()

it uses a method in world called

List list = this.worldObj.getEntitiesWithinAABB(EntityPlayer.class, axisalignedbb);

so I think you might find something useful in there.

 

EDIT: Please note this is just a guess and I'm by far no expert on this stuff.

[LaughingJackalMC]

Look in the beacons Tileentity in

Code: [select]

 

func_146000_x()

 

it uses a method in world called

Code: [select]

 

List list = this.worldObj.getEntitiesWithinAABB(EntityPlayer.class, axisalignedbb);

 

so I think you might find something useful in there.

 

EDIT: Please note this is just a guess and I'm by far no expert on this stuff.

 

Cool thanks ill look at that