conway.py

width = 40
height = 30
alive = '#'
dead = '-'

for i in range(height):
    for j in range(width):
        print "#ifndef CELL_%02d_%02d" % (i, j)
        print "#define CELL_%02d_%02d 0" % (i, j)
        print "#endif"
        print "#undef GRID_%02d_%02d" % (i, j)

for i in range(height):
    for j in range(width):
        neighbours = filter(lambda pair: pair[0] >= 0 and pair[0] < height
                            and pair[1] >= 0 and pair[1] < width,
                            [(i - 1, j - 1), (i - 1, j), (i - 1, j + 1),
                             (i, j - 1), (i, j + 1),
                             (i + 1, j - 1), (i + 1, j), (i + 1, j + 1)])
        cell = "CELL_%02d_%02d" % (i, j)
        grid = "GRID_%02d_%02d" % (i, j)
        print "#define COND %s" % '+'.join(map(lambda pair: "CELL_%02d_%02d" % pair, neighbours))
        print "#if (%s && (COND >= 2) && (COND <= 3)) || (!%s && (COND == 3))" % (cell, cell)
        print "#define %s %s" % (grid, alive)
        print "#define NEXT_%02d_%02d 1" % (i, j)
        print "#else"
        print "#define %s %s" % (grid, dead)
        print "#define NEXT_%02d_%02d 0" % (i, j)
        print "#endif"
        print "#undef COND"

for i in range(height):
    for j in range(width):
        print "#undef CELL_%02d_%02d" % (i, j)
        print "#if NEXT_%02d_%02d" % (i, j)
        print "#define CELL_%02d_%02d 1" % (i, j)
        print "#endif"
        print "#undef NEXT_%02d_%02d" % (i, j)

for i in range(height):
    print ' '.join(map(lambda j: "GRID_%02d_%02d" % (i, j), range(width)))

print "#include __FILE__"

glider.h

#define CELL_00_01 1
#define CELL_01_02 1
#define CELL_02_00 1
#define CELL_02_01 1
#define CELL_02_02 1

gosper.h

#define CELL_05_01 1
#define CELL_05_02 1
#define CELL_06_01 1
#define CELL_06_02 1

#define CELL_05_11 1
#define CELL_06_11 1
#define CELL_07_11 1
#define CELL_04_12 1
#define CELL_08_12 1
#define CELL_03_13 1
#define CELL_03_14 1
#define CELL_09_13 1
#define CELL_09_14 1

#define CELL_06_15 1
#define CELL_04_16 1
#define CELL_08_16 1
#define CELL_05_17 1
#define CELL_06_17 1
#define CELL_07_17 1
#define CELL_06_18 1

#define CELL_03_21 1
#define CELL_04_21 1
#define CELL_05_21 1
#define CELL_03_22 1
#define CELL_04_22 1
#define CELL_05_22 1
#define CELL_02_23 1
#define CELL_06_23 1
#define CELL_01_25 1
#define CELL_02_25 1
#define CELL_06_25 1
#define CELL_07_25 1

#define CELL_03_35 1
#define CELL_03_36 1
#define CELL_04_35 1
#define CELL_04_36 1