I am in the midst of making a sharpshooter game, and had a few questions. First, is there a way to be counting down on a timer while using Input to get coords from the graph? I wanted the user to have a limited amount of time to aim.
No, there's no way to actively count down. You have two options:
1) Create your own input routine that doesn't use Input
2) Use the TI-84+/SE's clock functions to check the time before and after the Input command. This would limit the game to non-TI-83+ calculators, though, and would only let users know if they took too long after they finished aiming.
I'd recommend the first option.
1) Create your own input routine that doesn't use Input
2) Use the TI-84+/SE's clock functions to check the time before and after the Input command. This would limit the game to non-TI-83+ calculators, though, and would only let users know if they took too long after they finished aiming.
I'd recommend the first option.
ghest1138 wrote:
Any idea how to do the custom input routine? (mind you, I'm using TI-BASIC)
Yes, tons of ways! I could continue to plug my book, of course, but if you get it you'll see that I have plenty of examples of moving things around on the graphscreen. The basic premise is something like this:
Code:
starting_x_coord→A
starting_y_coord→B
Repeat K=105 //Repeat this loop until the user presses [ENTER]
//Draw some cursor, for example with PtChange:
Pt-Change(A,B
Pt-Change(A,B+1
Pt-Change(A,B-1
Pt-Change(A-1,B
Pt-Change(A+1,B
// Wait for a keypress
Repeat K
getKey→K
End
//Erase the cursor, for example with PtChange:
Pt-Change(A,B
Pt-Change(A,B+1
Pt-Change(A,B-1
Pt-Change(A-1,B
Pt-Change(A+1,B
//Handle the keypress
A+ΔX((K=26)-(K=24→A
B+ΔY((K=25)-(K=34→B
End
// Final coordinate will be in (A,B)
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