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https://github.com/coding-horror/basic-computer-games.git
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d26dbf036a
Spaces tend to cause annoyances in a Unix-style shell environment. This change fixes that.
41 lines
765 B
JavaScript
41 lines
765 B
JavaScript
// 3D PLOT
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//
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// Converted from BASIC to Javascript by Oscar Toledo G. (nanochess)
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//
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function print(str)
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{
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document.getElementById("output").appendChild(document.createTextNode(str));
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}
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function tab(space)
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{
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var str = "";
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while (space-- > 0)
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str += " ";
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return str;
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}
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function equation(input)
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{
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return 30 * Math.exp(-input * input / 100);
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}
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print(tab(32) + "3D PLOT\n");
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print(tab(15) + "CREATIVE COMPUTING MORRISTOWN, NEW JERSEY\n");
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for (x = -30; x <= 30; x += 1.5) {
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l = 0;
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y1 = 5 * Math.floor(Math.sqrt(900 - x * x) / 5);
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str = "";
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for (y = y1; y >= -y1; y -= 5) {
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z = Math.floor(25 + equation(Math.sqrt(x * x + y * y)) - .7 * y);
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if (z > l) {
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l = z;
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while (str.length < z)
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str += " ";
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str += "*";
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}
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}
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print(str + "\n");
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}
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