How can I detect the 'steepness' of a curve? For example, if the user swipes their finger across the screen in a curve, what's the best way of detecting whether the curve is almost a semi-circle, or ...
I'm making a simple 2D game for iPhone. Think of the game as a ball on the screen that goes up while the user is touching the screen and falls down when the user stops touching the screen. The ball ...
So we recently launched a shoot 'em up arcade-type game (think Smash TV or I Made a Game with Zombies in It!). You can move in one direction and fire in another, so the ideal control scheme is ...
Is there currently a "standard" for touch controls in shooters on platforms such as iPhone or Android? I've noticed that many of them enable auto-fire by default, or control the character via direct ...
With the proliferation of touch based devices, many lacking a true D-Pad, I'm wondering if anyone has any resources on how to emulate a D-Pad on a touch screen? I'm specifically interested in XNA ...