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# Eiyeron/LLT.c

Last active March 6, 2024 19:55
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Long Line Theory, finally in C. Enjoy one the best bytebeat directly from your terminal without Javascript!
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 #include #include #define min(a, b) (a) < (b) ? (a) : (b) #define max(a, b) (a) > (b) ? (a) : (b) int main(int t, char** argc) { double sb, y, h, a, d, g; int backgroundWaveNotes[] = { 15, 15, 23, 8 }; double mainInstrumentNotes[2][16] = { { 15, 18, 17, 17, 17, 17, 999, 999, 22, 22, 999, 18, 999, 15, 20, 22 }, { 20, 18, 17, 17, 10, 10, 999, 999, 20, 22, 20, 18, 17, 18, 17, 10 } }; for(;;t++) { sb = (t > 0xffff ? 1 : 0); y = pow(2, backgroundWaveNotes[t >> 14 & 3] / 12.); a = 1. - ((t & 0x7ff) / (double) 0x7ff); d = (((int) 14. * t * t ^ t) & 0x7ff); g = (double) (t & 0x7ff) / (double) 0x7ff; g = 1. - (g * g); h = pow(2., mainInstrumentNotes[((t >> 14 & 3) > 2 ? 1 : 0) & 1][t >> 10 & 15] / 12); double wave = ((int) (y * t * 0.241) & 127 - 64) + ((int) (y * t * 0.25) & 127 - 64) * 1.2; double drum = ( ((int) (((int) (5. * t) & 0x7ff) * a) & 255 - 127) * ((0x53232323 >> (t >> 11 & 31)) & 1) * a * 1.0 + ((int) (d * a) & 255 - 128) * ((0xa444c444 >> (t >> 11 & 31)) & 1) * a * 1.5 + ((int) ((a * a * d * (t >> 9 & 1))) & 0xff - 0x80) * 0.1337) * sb; double instrument = (((int) (h * t) & 31) + ((int) (h * t * 1.992) & 31) + ((int) (h * t * .497) & 31) + ((int) (h * t * 0.977) & 31)) * g * sb; putchar(max(min((wave + drum + instrument) / 3., 127), -128)); } }
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 /*! * * Welcome to Long Line Theory * ------------------ * * A start of a human readable port of a well done bytebeat findable here : http://www.pouet.net/topic.php?which=8357&page=13 * Made readable by @Eiyeron * Enjoy! * Usage : copy-paste it on http://wavepot.com */ function LLT(t) { var sb, y, h, a, d, g; var backgroundWaveNotes= [ 15, 15, 23, 8 ]; var mainInstrumentNotes= [ [ 15, 18, 17, 17, 17, 17, 999, 999, 22, 22, 999, 18, 999, 15, 20, 22 ], [ 20, 18, 17, 17, 10, 10, 999, 999, 20, 22, 20, 18, 17, 18, 17, 10 ]]; sb = (t > 0xffff ? 1 : 0); y = Math.pow(2, backgroundWaveNotes[t >> 14 & 3] / 12); a = 1 - ((t & 0x7ff) / 0x7ff); d = (( 14 * t * t ^ t) & 0x7ff); g = (t & 0x7ff) / 0x7ff; g = 1 - (g * g); h = Math.pow(2, mainInstrumentNotes[((t >> 14 & 3) > 2 ? 1 : 0) & 1][t >> 10 & 15] / 12); var wave = (Math.floor(y * t * 0.241) & 127 - 64) + (Math.floor(y * t * 0.25) & 127 - 64) * 1.2; var drum = ( (Math.floor((Math.floor(5 * t) & 0x7ff) * a) & 255 - 127) * ((0x53232323 >> (t >> 11 & 31)) & 1) * a * 1.0 + (Math.floor(d * a) & 255 - 128) * ((0xa444c444 >> (t >> 11 & 31)) & 1) * a * 1.5 + (Math.floor((a * a * d * (t >> 9 & 1))) & 0xff - 0x80) * 0.1337) * sb; var instrument = ((Math.floor(h * t) & 31) + (Math.floor(h * t * 1.992) & 31) + (Math.floor(h * t * .497) & 31) + (Math.floor(h * t * 0.977) & 31)) * g * sb; return Math.max(Math.min((wave + drum + instrument) / 3, 127), -128); } function dsp(t) { return LLT(t*8000)/128; }