Acorn Arcade forums: Programming: Jumping from Full Screen to Desktop
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Jumping from Full Screen to Desktop |
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Gareth2 (21:04 16/9/2005)
tribbles (22:13 16/9/2005)
Gareth2 (16:41 17/9/2005)
tribbles (17:44 17/9/2005)
Gareth2 (19:15 18/9/2005)
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Gareth |
Message #86419, posted by Gareth2 at 21:04, 16/9/2005 |
AA refugee
Posts: 8
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Hello there! In some games I have found that there is a feature which allows you to pause the game by exiting into the desktop. The user can then return to the game in full screen mode exactly where they left off. The only way I know of exiting to the desktop is by using *Desktop, but this closes the program. How do games do this? |
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Jason Tribbeck |
Message #86420, posted by tribbles at 22:13, 16/9/2005, in reply to message #86419 |
 Captain Helix
Posts: 929
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While I've not done this in a game, I have done this somewhere else. I think the way I'd do this is to: - Change screen mode in the game, play the game - When the user wants to go to the desktop, call Wimp_Initialise and do what you need for the WIMP - When the user wants to continue playing, exit the WIMP, change screen mode back and continue where you left off The way I did it in my application was the reverse - it was actually a WIMP application that disabled the screen (to get some more CPU for non-VRAM machines) by going into MODE 0 (rather than completely disable video), and when it finished what it needed to do, it reset the screen mode back again. |
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Gareth |
Message #86421, posted by Gareth2 at 16:41, 17/9/2005, in reply to message #86420 |
AA refugee
Posts: 8
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Thanks for the info Jason! One of the things that is still puzzling me though is when you are in the game, how exactly do you return to the desktop without completely closing down your program, I usually use *desktop, but this just closes the program. Even in the WIMP I don't see how this could work. |
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Jason Tribbeck |
Message #86422, posted by tribbles at 17:44, 17/9/2005, in reply to message #86421 |
Captain Helix
Posts: 929
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One of the things that is still puzzling me though is when you are in the game, how exactly do you return to the desktop without completely closing down your program, I usually use *desktop, but this just closes the program. Even in the WIMP I don't see how this could work. I'm not sure about this (as I've said; it's not something I've done). I would imagine that as soon as you call Wimp_Initialise in your code, it'll pop back into the desktop; when you're finished, call Wimp_CloseDown and then change mode. Try it and see - it shouldn't be that complicated. The other, long-winded method is to have a Wimp stub application and use a dynamic area or RMA space to store you current game state, so when you exit the game, you save the state. When the user clicks on the icon, the game gets reloaded and the state restored. |
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Gareth |
Message #86423, posted by Gareth2 at 19:15, 18/9/2005, in reply to message #86422 |
AA refugee
Posts: 8
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Hi Jason, You were right! A call to Wimp_Initialise took me out of full screen mode and then another call to Wimp_Poll allowed me to see the desktop. I did try Wimp_Initialise once before, but I did it before I changed mode, so did not think it had worked. Thanks for the advice.
[Edited by Gareth at 20:17, 18/9/2005] |
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Acorn Arcade forums: Programming: Jumping from Full Screen to Desktop |
