glmwc@marlin.jcu.edu.au (Matt Crowd) (12/19/90)
I have yet another minor problem with my program... I have 2 screens swapping between each other for the title sequence of a program. I want these screens to swap about every 5 seconds. I am using Delay() to do the timing for the screen swapping. However, I want the user to be able to click on the mouse button to end this intro sequence and load the main program. The problem is Delay() will not return for, at worse, just under 5 seconds, which is too long. I would like to be able to detect the mouse press straight away, and still have the program swap screens correctly no matter how fast the machine it is running on is. I am an old Z80 assembler programmer and my mind is screaming interupts as the solution to this problem, but I have no idea how to set one up on the Amiga to do this. Examples/references/other solutions would be appreciated. Wait! I have another idea! How about using WaitTOF! After each of these I could check the mouse event and increment the timer... Sound ok? Thanks, -- Matt Crowd Amiga Man Email Address glmwc@marlin.jcu.edu.au
peter@cbmvax.commodore.com (Peter Cherna) (12/20/90)
In article <1990Dec19.101704.4071@marlin.jcu.edu.au> glmwc@marlin.jcu.edu.au (Matt Crowd) writes: > >Wait! I have another idea! How about using WaitTOF! After >each of these I could check the mouse event and increment the timer... >Sound ok? You could use timer.device to give you a poke after 5 seconds. Then you could Wait() on signals from both timer and intuition. Using WaitTOF() would be like a semi-busy loop. While you're relinquishing cycles you don't need, you're still waking up very often though nothing may have happened. You can use INTUITICKS messages instead of WaitTOF(). INTUITICKS wake you up about 10 times a second, compared to 50 or 60 for WaitTOF(). But the timer.device would be the most multitasking-friendly. In your case, INTUITICKS will likely cause no difficulties. >Matt Crowd Amiga Man Peter -- Peter Cherna, Software Engineer, Commodore-Amiga, Inc. {uunet|rutgers}!cbmvax!peter peter@cbmvax.commodore.com My opinions do not necessarily represent the opinions of my employer. "Oh, PIN-compatible! I thought you wanted me to make it IN-compatible!"