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Newcomers DBPro Corner / Multiple keys pressed

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047
18
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Joined: 4th Jun 2006
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Posted: 3rd Jul 2006 17:45
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Hi,
How do you tell the computer to do something if more than 1 key is being pressed at the same time. I'm working on a car racing game where "a" accelerates and the arrow keys steer. The problem is that the car is supposed to slow down if "a" is not pressed. However everytime I press the arrow keys to steer while still pressing "a" the car slows down because apparently INKEY$() <> "a" anymore. I studied the "CAVERUN" demo that comes with DB classic and they seem to be using the same method I'm attempted but you can accelare and steer at the same time.
Any ideas?
Thanks a lot!!!
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Game Man
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Joined: 23rd Nov 2005
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Posted: 4th Jul 2006 00:11 Edited at: 4th Jul 2006 14:51
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The demo uses "Upkey()", "Leftkey()", and "Rightkey()". "Inkey$" only returns the string of a letter key. You can also use "Scancode()" which returns a numeric value of any key pressed.

Scancode() and Inkey$ can only return one value.

Look in the help files for all the key functions.
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BatVink
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Joined: 4th Apr 2003
Location: Gods own County, UK
Posted: 4th Jul 2006 00:12 Edited at: 4th Jul 2006 00:14
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Look up SCANCODE() in the help Use it with KEYSTATE() to check all keys



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CattleRustler
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Joined: 8th Aug 2003
Location: case modding at overclock.net
Posted: 4th Jul 2006 00:14
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and remember there is a hardware limitation of how many simultaneous keys that will register with the system as being pressed, so dont try and use too many keys at one time.

Science, Mathematics, and Physics do not lie - only people do.
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