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mathmake.c

#include <stdio.h>
#include <math.h>

#define scale 1024

int basis[91];
int cost[360];

main(void) {
      int i;
      printf("#define costScale %d\n", scale);
      printf("int cost[] = {\n  ");
      for (i=0; (i <= 90); i++) {
            basis[i] = cos((double)i * .0174532925) * scale;
      }
      for (i=0; (i < 90); i++) {
            printf("%d,\n  ", cost[i] = basis[i]);
      }
      for (i=90; (i < 180); i++) {
            printf("%d,\n  ", cost[i] = -basis[180-i]);
      }
      for (i=180; (i < 270); i++) {
            printf("%d,\n  ", cost[i] = -basis[i-180]);
      }
      for (i=270; (i < 359); i++) {
            printf("%d,\n  ", cost[i] = basis[360-i]);
      }
      printf("%d\n", cost[359] = basis[1]);
      printf("};\n");
      printf("#define sintScale %d\n", scale);
      printf("int sint[] = {\n  ");
      for (i=0; (i<360); i++) {
            int val;
            val = cost[(i + 270) % 360];
            if (i != 359) {
                  printf("%d,\n  ", val);
            } else {
                  printf("%d\n", val);
            }
      }
      printf("};\n");
}
            

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