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POTraversing a Grid of N Cells without declaring 2 variables (rows and columns)
 

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  1. POTraversing a Grid of N Cells without declaring 2 variables (rows and columns)
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    <p>I have been developing a game for canvas in JavaScript.</p> <p>I have chosen to create the game without limitations to the world size grid. So if they wish to play with a grid size of N, the logic will generate it.</p> <p>I have been working with bounds detection and have begun to program a function that will change the cell location on the grid if the user decides to travel outside the screen.</p> <p>For simplicity sake, I have shrunk the grid size to N = 9 so you can visualize this. The grid looks like </p> <pre><code> [0][1][2] [3][4][5] [6][7][8] </code></pre> <p>If the user is to travels off a -x value Cell[0], they will appear at the rightmost x position of cell [2]. this is represented as SQRT(N). So I know that the rightmost corner is SQRT(N). I also know that N is the bottom right hand cell [8]. </p> <p>With that said, here is a sample of the cells and thier equation IDs.</p> <pre><code> [0][1][SQRT(N)] [3][4][5] [N - SQRT(N)][7][N] </code></pre> <p>The grid above shows the x axis formulas for the 4 corners, but it is essential that I at least try to answer the inner cell equations before using static magic number switch-case conditionals.</p> <p>here is some javscript code showing what I am explaining:</p> <pre><code>if (player.X &lt; 0 - 10) { player.X = SCREEN_WIDTH; if (gameQuadrent == 0) { gameQuadrent = Math.floor(Math.sqrt(WORLD_SIZE)); } else if (gameQuadrent == (WORLD_SIZE - Math.floor(Math.sqrt(WORLD_SIZE)))) { gameQuadrent = WORLD_SIZE; } else { gameQuadrent--; } } </code></pre> <p>Any more efficient ways of doing this? I am trying to solve this problem without having to move over to a fixed world size.</p> <p>Much Appreciated. </p>
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      1. VTUpMod
    1. COthis will always limit you to squares --> would you have any interest in having rectangular worlds?
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    2. COok just read the title again...
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      1. USfixagon
 

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