How to get a UIButton to fire mutiple shoots

You probably don't want to use a UIButton for this, but rather a standard UIView, and override touchesBegan/touchesEnded.

B

 

I have used this for my own game (but not for firing a weapon), where the player can actually hold down a button in order for them to keep doing what that button does.

CladCreations can do the same thing.

When you set your IBAction for your button, in Interface Builder, instead of using the "Touch Up Inside" option, use "Touch Down". This will detect if you are holding down on that button rather than detecting if you have released your thumb off it.

Then in your IBAction Method you have associated with it, you can set what ever variables you like to say you are firing your weapon, and if it already firing.

You would probably need a seperate IBAction method though for associated with "Touch Up Inside", for when you do release your thumb off, so it stops firing.

 

It has been awhile since I have used Xcode exclusively, but I think that this line of code from Aerial Combat should detect if one object is touching another:

Code:

	if(fabs(self.bullet.center.x - self.boat.center.x)<self.boat.frame.size.width/2.0 && fabs(self.boat.center.y - self.bullet.center.y)<10.0) {

Of course replace bullet and boat with the name of your bullet and your target object. You may need to change the numbers to fit your game, but that should get you going.

As far as moving an object, use these lines:

Code:

CGPoint PI2Center = pi2.center;
	PI2Center.x += 10;

You can change the .x to .y and you can change the 10 to any number you want. Put this in an NSTimer to fluiding move an object across the screen Just so you know, it doesn't matter what the CGPoint is called (PI2Center in the example), but what you put just before .center must be the name of your object.