Distance

How do I compare the distance between two objects only by their X, and not their Y?

you could use distance( ) expression but just leave the Y values as 0

or just do

objectA.x - ObjectB.X

and put it in abs( ) if you need it to stay a positive number.

keepee These are good ideas.

But when using distance its like "distance(player.x,player.y,enemy.x,enemy.y) --- so how would I leave the Y as 0?

I'll try the second method right now.

how about player.y and enemy.y being just zeros?

Rory You mean, put them on the layout at Y=0, but move their X's?

You're losing me here... lol.

No, no, no. Instead of putting Player.Y into the formula, you put 0.

Mipey Oh that works? sweet.. thanks

It's basically |Player.X - Enemy.X|

Mipey Im trying to make a LOS based AI for a platformer, so far its buggy and hardly works, this is difficult. Im giving myself some credit for making it this far and hardly knowing anything about coding.

It's more about math than coding, trust me :)

Might try overlap at offset.

Mipey Do you see any errors here? because everything works besides when I go above him, he still chases me, when he's supposed to go to patrolling mode... if you're interested, I could also give you the .capx

dl.dropbox.com/u/94572684/Pictures/Untitled.png

Kid4lynn:

Could be that you only check for Y position in the first first event. When the player is above enemy Y, first event is false, but second is still true.

Mipey oh man, can't believe I missed that...

Although that didn't change anything, thanks for pointing that one out.

I would set it up something like this (+ event, > action, ++ subevent, >> action in subevent, sorry I can't be arsed with formatting, got big enough headache with project of my own :) )

+ Every tick

Enemy: Set Sight to false (this basically sets all enemies to blind mode...)

+ abs(Player.X - Enemy.X) < 300 (... but right after that, we check for enemies which still see player and set 'em back to true)

+ Player.Y == Enemy.Y (they're on the same platform, as long as player and enemy sprites have the hotspot at same height)

++ Is mirrored

++ Player.X < Enemy.X

Enemy: set Sight to true

++ is NOT mirrored

++ Player.X > Enemy.X

Enemy: set Sight to true