I am rather embarrassed to ask this, but I am on a time limit. basically, i need to get an array which can hold integers and then those integers can be used to plot a point on an image.
I am trying to make a program where random objects travel down the screen following certain paths, but at random. So far this is my code:
enemyPaths = [NSMutableArray array];//5 items (0-4)
[enemyPaths addObject:[NSNumber numberWithInt:48]];
[enemyPaths addObject:[NSNumber numberWithInt:93]];
[enemyPaths addObject:[NSNumber numberWithInt:138]];
[enemyPaths addObject:[NSNumber numberWithInt:183]];
[enemyPaths addObject:[NSNumber numberWithInt:228]];
[enemyPaths retain];
That is the Array. What i want to do is to be able to make a random number generator and have the x point of an object use whatever value comes out of the array as a starting point:
double i = (arc4random() % 5);
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:[enemyPaths objectAtIndex: i]];
image.x = (int)data;
I am at a bit of a loss as to what to do, as my knowledge of converting NSarray to NSdata isnt very extensive and this is rather confusing. I would appreciate any help you can give.
Important note: I am using the Sparrow framework with this program, just so you know.
Why are you trying to archive the array in the first place? I think you want to do this:
image.x = [[enemyPaths objectAtIndex:i] intValue];
Here intValue is a method of the NSNumber class; it is the inverse of the numberWithInt method you used when creating the array.