Accelerometer Problem , Help needed !

marwanbarakat

Hi guys,
I'm making a portrait shooting game and im using the accelerometer to move the cursor. It looks like a game called High Noon
I'm using the following rules in the cursor prototype:
constrain attribute : self.motion.linear velocity.X To game.accelerometer.X * 800
constrain attribute : self.motion.linear velocity.Y To game.accelerometer.Y * 800

the 1st rule is 100% working as I need , but the 2nd is only working when the ( accelerometer Y ) has a positive value, that means the player has to make thier iphone in a flat (horizontal) state and tilt it down to play the game.

I tried to put a minus sign and tried to make a custom att. to change the accelerometer sign but it doesnt work.er

Please help me fixing this, or if there is any other way to do it.

Thanks

95orange

You want to use the absolute value... http://en.wikipedia.org/wiki/Absolute_value

Constrain to abs(game.accelerometer.Y * 800)

kinzua

@marwanbarakat consider caliberating the user sensor when he starts playing.. to do that.. create an attribute which reads the accel value Y on startup or when u think it wud b best.. Then use this value as ur 0 value and code accordingly....

for eg.. u cud something like
self.motion.linear velocity.Y To (game.startaccelValue-game.accelerometer.Y) * 800

Not sure if that'll help.. Lemme know..

marwanbarakat

@kinzua i've tried that but its not working, its not even moving vertically