Check what type of ID it is

* Create an empty surface of the appropriate depth using the given format */

Returns true if user_type matches pattern or if user_type begins with pattern and the next character is ':' For example, UserTypeMatches("rwbuffer", "

When true, the collector will no longer accept any additional hits and the collision detection routine should early out as soon as possible

Must be called from the WarmStartVelocityConstraint call to apply the previous frame's impulses

Returns if this spring is active

* Return the SDL_Joystick associated with an instance id. */

Check if vector is normalized

Returns a pointer to the output buffer content. No terminating null character is appended.

Returns a pointer to the output buffer content. No terminating null character is appended.

Free memory for a URI

* Unlock a previously locked surface */

Get matrix that rotates and translates