http://learn.cemetech.net/index.php?action=history&feed=atom&title=TI-BASIC%3AGetkey_ProgramTI-BASIC:Getkey Program - Revision history2026-04-03T22:42:32ZRevision history for this page on the wikiMediaWiki 1.43.3http://learn.cemetech.net/index.php?title=TI-BASIC:Getkey_Program&diff=1181&oldid=prevMaintenance script: Initial automated import2016-02-24T18:38:49Z<p>Initial automated import</p>
<p><b>New page</b></p><div>> '''Note:''' This page was originally created by IProgrammer on the TI-Basic wiki, and has been added here because TI-Basic wiki is in the process of being merged with this wiki. In addition to this page, only those pages which weren't already duplicated on this wiki were added.<br />
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We will be learning about the [[TI-BASIC:Getkey|GetKey]] command, and how to create a controlled movement in this program.<br />
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== Starting Out ==<br />
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There are a few steps to ensure that your program will run smoothly:<br />
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=== Check if you have the RAM to hold a program ===<br />
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Click on 2nd then MEM above the + sign. Make Sure that you have at least 500 RAM too use. If you don't, I suggest you archive something by pressing 2 then 1, then press ENTER on anything that doesn't have a star next to it.<br />
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=== Creating the program ===<br />
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Click the PRGM key then use the right arrow until NEW is highlighted. You should get a screen like this:<br />
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PROGRAM<br />
NAME=<br />
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Go ahead and enter any name you want. Must be only A-Z, no numbers.<br />
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=== Now for the commands ===<br />
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Lets go ahead and put in some commands. By now you should have a general understanding so I'll go through this pretty fast:<br />
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PROGRAM:MOVER // Title<br />
:ClrHome // Clears screen<br />
:1→Y // Sets 1 to Y<br />
:1→X // Sets 1 to X<br />
:Lbl 1 // Program Divider #1<br />
:Output(X,Y,"O" // Displays the character<br />
:getKey→G // Gets the key that the user is pressing<br />
:If G=0 // IF G=0 then...<br />
:Goto 1 // Go to top (looper)<br />
:If G≠0 // If G≠0 then...<br />
:ClrHome // Clears the screen<br />
:If G=25 // If G=Up then...<br />
:Y-1→Y // Y-1 to Y when up is pressed<br />
:If G=34 // If G=Down then...<br />
:Y+1→Y // Y+1 to Y when down is pressed<br />
:If G=24 // If G=Left then...<br />
:X-1→X // X-1 to X when left is pressed<br />
:If G=26 // If G=Right then...<br />
:X+1→X // X+1 to X when right is pressed<br />
:If X=0 // If X is less than the screen then...<br />
:X+1→X // X+1 to X to stop ERROR:DOMAIN<br />
:If Y=0 // IF Y is less than the screen then...<br />
:Y+1→Y // Y+1 to Y to stop ERROR:DOMAIN<br />
:If X=17 // IF X is greater than the screen then...<br />
:X-1→X // X-1 to X to stop ERROR:DOMAIN<br />
:If Y=9 // IF Y is greater than the screen then...<br />
:Y-1→Y // Y-1 to Y to stop ERROR:DOMAIN<br />
:Goto 1 // Goes up to the top (looper)<br />
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== Result ==<br />
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The user will be able to move a little circle around the screen.<br />
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== Conclusion ==<br />
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Way to go you made your first getKey program!<br />
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== Optionals ==<br />
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You can make your circle teleport to the other side of the screen if you change this part of the program.<br />
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...<br />
:If X=0 // If X is less than the screen then...<br />
:X+16→X // Move X to right side of the screen<br />
:If Y=0 // IF Y is less than the screen then...<br />
:Y+8→Y // Move Y to bottom of the screen<br />
:If X=17 // If X is greater than the screen then...<br />
:X-16→X // Move X to left side of the screen<br />
:If Y=9 // If Y is greater than the screen then...<br />
:Y-8→Y // Move Y to top of the screen<br />
:Goto 1 // Goes up to the top (looper)[[Category:TI-BASIC]]<br />
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