def test_heightmap(): hmap = libtcodpy.heightmap_new(16, 16) repr(hmap) noise = libtcodpy.noise_new(2) # basic operations libtcodpy.heightmap_set_value(hmap, 0, 0, 1) libtcodpy.heightmap_add(hmap, 1) libtcodpy.heightmap_scale(hmap, 1) libtcodpy.heightmap_clear(hmap) libtcodpy.heightmap_clamp(hmap, 0, 0) libtcodpy.heightmap_copy(hmap, hmap) libtcodpy.heightmap_normalize(hmap) libtcodpy.heightmap_lerp_hm(hmap, hmap, hmap, 0) libtcodpy.heightmap_add_hm(hmap, hmap, hmap) libtcodpy.heightmap_multiply_hm(hmap, hmap, hmap) # modifying the heightmap libtcodpy.heightmap_add_hill(hmap, 0, 0, 4, 1) libtcodpy.heightmap_dig_hill(hmap, 0, 0, 4, 1) libtcodpy.heightmap_rain_erosion(hmap, 1, 1, 1) libtcodpy.heightmap_kernel_transform(hmap, 3, [-1, 1, 0], [0, 0, 0], [.33, .33, .33], 0, 1) libtcodpy.heightmap_add_voronoi(hmap, 10, 3, [1, 3, 5]) libtcodpy.heightmap_add_fbm(hmap, noise, 1, 1, 1, 1, 4, 1, 1) libtcodpy.heightmap_scale_fbm(hmap, noise, 1, 1, 1, 1, 4, 1, 1) libtcodpy.heightmap_dig_bezier(hmap, [0, 16, 16, 0], [0, 0, 16, 16], 1, 1, 1, 1) # read data libtcodpy.heightmap_get_value(hmap, 0, 0) libtcodpy.heightmap_get_interpolated_value(hmap, 0, 0) libtcodpy.heightmap_get_slope(hmap, 0, 0) libtcodpy.heightmap_get_normal(hmap, 0, 0, 0) libtcodpy.heightmap_count_cells(hmap, 0, 0) libtcodpy.heightmap_has_land_on_border(hmap, 0) libtcodpy.heightmap_get_minmax(hmap) libtcodpy.noise_delete(noise) libtcodpy.heightmap_delete(hmap)
def make_heightmap(size, seed): # Gradient generated by distance to the northeast corner (creates northeast ocean). gradient1 = lt.heightmap_new(size, size) for col in xrange(size): for row in xrange(size): distance = ((row - size) ** 2 + col ** 2) ** 0.5 lt.heightmap_set_value(gradient1, row, col, distance) lt.heightmap_clamp(gradient1, mi=0, ma=WORLD_SIZE) lt.heightmap_scale(gradient1, 2) # Similar gradient, but cube root (creates mountains around edge). gradient2 = lt.heightmap_new(size, size) for col in xrange(size): for row in xrange(size): distance = ((row - size) ** 2 + col ** 2) ** 0.33 lt.heightmap_set_value(gradient2, row, col, distance) lt.heightmap_clamp(gradient2, mi=0, ma=WORLD_SIZE / 6) lt.heightmap_scale(gradient2, 5) # Height map based on Perlin noise. heightmap = lt.heightmap_new(size, size) random = lt.random_new() if seed: random = lt.random_new_from_seed(seed) perlin = lt.noise_new(2, h=2, l=2, random=random) lt.heightmap_add_fbm(heightmap, perlin, mulx=3, muly=3, addx=0, addy=0, octaves=8, delta=50, scale=100) # Add in gradients. lt.heightmap_add_hm(heightmap, gradient1, heightmap) lt.heightmap_add_hm(heightmap, gradient2, heightmap) lt.heightmap_normalize(heightmap, mi=-100, ma=105) lt.heightmap_clamp(heightmap, mi=-50, ma=100) lt.heightmap_normalize(heightmap, mi=-100, ma=100) visualize(heightmap) return heightmap