matrix.py

def topo_generator(min_elev, max_elev, width, height):
    matrix = []
    for y in range(0, height):
        matrix.append([])
        for x in range(0, width):
            matrix[y].append(random.randrange(min_elev, max_elev))
    return matrix

def topo_generator(min_e, max_e, width, height):
    matrix = []
    for y in range(0, height):
        matrix.append([])
        for x in range(0, width):
            if y == 0 and x == 0:
                matrix[y].append(random.randrange(min_e, max_e)) 
            elif x == 0:
                min_delta = int(matrix[y-1][x] * .90)
                max_delta = int(matrix[y-1][x] * 1.10)
                matrix[y].append(random.randrange(min_delta, max_delta))            
            else:
                min_delta = int(matrix[y][x-1] * .90)
                max_delta = int(matrix[y][x-1] * 1.10)
                if min_delta == 0 or max_delta == 0:
                    min_delta = min_e
                    max_delta = max_e
                matrix[y].append(random.randrange(min_delta, max_delta))
    return matrix