Function tcod_sys::TCOD_heightmap_add_fbm

pub unsafe extern fn TCOD_heightmap_add_fbm(hm: *mut TCOD_heightmap_t,
                                            noise: TCOD_noise_t,
                                            mulx: c_float,
                                            muly: c_float,
                                            addx: c_float,
                                            addy: c_float,
                                            octaves: c_float,
                                            delta: c_float,
                                            scale: c_float)