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Content from math import sin,cos,pi WIDTH = 160 HEIGHT = 80 class Ship: def __init__(self): self.x = WIDTH/2 self.y = HEIGHT/2 self.rot = 0 self.speed = 4 self.rot_speed = 0.5 def fd(self): self.x += cos(self.rot) * self.speed self.y += sin(self.rot) * self.speed self.x, self.y, self.rot = self.wrap(self.x, self.y, self.rot) def rt(self): self.rot += self.rot_speed def lt(self): self.rot -= self.rot_speed def draw(self, d): self.draw_relative(d, 0,0,-4,4) self.draw_relative(d, -4,4,10,0) self.draw_relative(d, 10,0,-4,-4) self.draw_relative(d, -4,-4,0,0) def draw_relative(self, d, x1, y1, x2, y2): xa = self.x + x1*cos(self.rot) - y1*sin(self.rot) ya = self.y + x1*sin(self.rot) + y1*cos(self.rot) xb = self.x + x2*cos(self.rot) - y2*sin(self.rot) yb = self.y + x2*sin(self.rot) + y2*cos(self.rot) self.draw_line(d,xa,ya,xb,yb) def wrap(self, x, y, rot): return self.wrap_y(*self.wrap_x(x, y, rot)) def draw_line(self, d, x1, y1, x2, y2): x1 = int(x1) x2 = int(x2) y1 = int(y1) y2 = int(y2) while x1 < 0 and x2 < 0: x1 += WIDTH x2 += WIDTH while x1 > WIDTH and x2 > WIDTH: x1 -= WIDTH x2 -= WIDTH while y1 < 0 and y2 < 0: y1 += HEIGHT y2 += HEIGHT while y1 > HEIGHT and y2 > HEIGHT: y1 -= HEIGHT y2 -= HEIGHT if x1 > WIDTH or x2 > WIDTH: y_split = y1 + (y2 - y1) * (WIDTH - x1) / (x2 - x1) if x1 > WIDTH: self.draw_line(d, x2, y2, WIDTH, y_split) a,b, _ = self.wrap_x(x1,y1,0) _,c, _ = self.wrap_x(x1,y_split,0) self.draw_line(d, a, b, 0, c) return else: self.draw_line(d, x1, y1, WIDTH, y_split) a,b, _ = self.wrap_x(x2,y2,0) _,c, _ = self.wrap_x(x2,y_split,0) self.draw_line(d, a, b, 0, c) return if x1 < 0 or x2 < 0: y_split = y1 + (y2 - y1) * -x1 / (x2 - x1) if x1 < 0: self.draw_line(d, x2, y2, 0, y_split) a,b, _ = self.wrap_x(x1,y1,0) _,c, _ = self.wrap_x(x1,y_split,0) self.draw_line(d, a, b, WIDTH, c) return else: self.draw_line(d, x1, y1, 0, y_split) a,b, _ = self.wrap_x(x2,y2,0) _,c, _ = self.wrap_x(x2,y_split,0) self.draw_line(d, a, b, WIDTH, c) return if y1 > HEIGHT or y2 > HEIGHT: x_split = x1 + (x2 - x1) * (HEIGHT - y1) / (y2 - y1) if y1 > HEIGHT: self.draw_line(d, x2, y2, x_split, HEIGHT) a,b, _ = self.wrap_y(x1,y1,0) c,_, _ = self.wrap_y(x_split,y1,0) self.draw_line(d, a, b, c, 0) return else: self.draw_line(d, x1, y1, x_split, HEIGHT) a,b, _ = self.wrap_y(x2,y2,0) c,_, _ = self.wrap_y(x_split,y2,0) self.draw_line(d, a, b, c, 0) return if y1 < 0 or y2 < 0: x_split = x1 + (x2 - x1) * -y1 / (y2 - y1) if y1 < 0: self.draw_line(d, x2, y2, x_split, 0) a,b, _ = self.wrap_y(x1,y1,0) c,_, _ = self.wrap_y(x_split,y1,0) self.draw_line(d, a, b, c, HEIGHT) return else: self.draw_line(d, x1, y1, x_split, 0) a,b, _ = self.wrap_y(x2,y2,0) c,_, _ = self.wrap_y(x_split,y2,0) self.draw_line(d, a, b, c, HEIGHT) return d.line(x1, y1, x2, y2) class ShipTorus(Ship): def __init__(self): super().__init__() def wrap_x(self, x, y, rot): return x%WIDTH, y, rot def wrap_y(self, x, y, rot): return x, y%HEIGHT, rot class ShipKlein(Ship): def __init__(self): super().__init__() def wrap_x(self, x, y, rot): while x > WIDTH: x -= WIDTH y = HEIGHT-y rot *= -1 while x < 0: x += WIDTH y = HEIGHT-y rot *= -1 return x, y, rot def wrap_y(self, x, y, rot): return x, y%HEIGHT, rot class ShipRPP(Ship): def __init__(self): super().__init__() def wrap_x(self, x, y, rot): while x > WIDTH: x -= WIDTH y = HEIGHT-y rot *= -1 while x < 0: x += WIDTH y = HEIGHT-y rot *= -1 return x, y, rot def wrap_y(self, x, y, rot): while y > HEIGHT: y -= HEIGHT x = WIDTH-x rot = pi-rot while y < 0: y += HEIGHT x = WIDTH-x rot = pi-rot return x, y, rot import display import buttons import utime d = display.open() selected = 0 surfaces = ["Torus", "Klein bttl", "R proj pln"] ships = [ShipTorus,ShipKlein,ShipRPP] while True: text = "" for i,s in enumerate(surfaces): if i == selected: text += ">" else: text += " " text += (s+" "*10)[:10] d.clear() d.print(text) d.update() utime.sleep(0.1) if buttons.read(buttons.TOP_RIGHT): break if buttons.read(buttons.BOTTOM_RIGHT): selected += 1 if buttons.read(buttons.BOTTOM_LEFT): selected -= 1 selected %= len(surfaces) s = ships[selected]() while True: d.clear() s.draw(d) d.update() utime.sleep(0.1) if buttons.read(buttons.BOTTOM_RIGHT): s.rt() if buttons.read(buttons.BOTTOM_LEFT): s.lt() s.fd() d.close()