python - Pygame 3D Cube translate,move -

i have make follow 3d cube , need make translate function move cube example key move axis x, cube y move in axis y,and right in axis z, search find translate function it's 2d here mind stack , confuse.

now want follow please, how can anjust translate function code, or have idea how move,transate cube vertices3 of code below?

please help

import sys, math, pygame  class point3d:     def __init__(self, x = 0, y = 0, z = 0):         self.x, self.y, self.z = float(x), float(y), float(z)      def rotatex(self, angle):         """ rotates point around x axis given angle in degrees. """         rad = angle * math.pi / 180         cosa = math.cos(rad)         sina = math.sin(rad)         y = self.y * cosa - self.z * sina         z = self.y * sina + self.z * cosa         return point3d(self.x, y, z)      def rotatey(self, angle):         """ rotates point around y axis given angle in degrees. """         rad = angle * math.pi / 180         cosa = math.cos(rad)         sina = math.sin(rad)         z = self.z * cosa - self.x * sina         x = self.z * sina + self.x * cosa         return point3d(x, self.y, z)      def rotatez(self, angle):         """ rotates point around z axis given angle in degrees. """         rad = angle * math.pi / 180         cosa = math.cos(rad)         sina = math.sin(rad)         x = self.x * cosa - self.y * sina         y = self.x * sina + self.y * cosa         return point3d(x, y, self.z)      def project(self, win_width, win_height, fov, viewer_distance):         """ transforms 3d point 2d using perspective projection. """         factor = fov / (viewer_distance + self.z)         x = self.x * factor + win_width / 2         y = -self.y * factor + win_height / 2         return point3d(x, y, 1)  class simulation:     def __init__(self, win_width = 640, win_height = 480):         pygame.init()          self.screen = pygame.display.set_mode((win_width, win_height))         pygame.display.set_caption("3d wireframe cube simulation (http://codentronix.com)")          self.clock = pygame.time.clock()          self.vertices = [             point3d(-1,-1,-1),             point3d(-1,1,-1),             point3d(1,1,-1),             point3d(1,-1,-1),             point3d(-1,1,1),             point3d(1,1,1),             point3d(1,-1,1),             point3d(-1,-1,1)             ]          self.vertices2 = [             point3d(-1,-1,-1),             point3d(-1,0,-1),             point3d(0,0,-1),             point3d(0,-1,-1),             point3d(-1,0,0),             point3d(0,0,0),             point3d(0,-1,0),             point3d(-1,-1,0)             ]           self.vertices3 = [             point3d(0,-1,-1),             point3d(0,0,-1),             point3d(1,0,-1),             point3d(1,-1,-1),             point3d(0,0,0),             point3d(1,0,0),             point3d(1,-1,0),             point3d(0,-1,0)             ]          # define vertices compose each of 6 faces. these numbers         # indices vertices list defined above.         self.faces = [(0,1,2,3),(0,1,4,7),(4,5,6,7),(7,6,3,0),(5,6,3,2)]         self.faces2 = [(0,1,2,3),(0,1,4,7),(4,5,6,7),(7,6,3,0),(5,6,3,2)]           self.anglex, self.angley, self.anglez = 0, 0, 0      def run(self):         """ main loop """         while 1:             event in pygame.event.get():                 if event.type == pygame.quit:                            sys.exit()              self.clock.tick(50)             self.screen.fill((0,0,0))              # hold transformed vertices.             t = []             t1 = []                v in self.vertices:                 # rotate point around x axis, around y axis, , around z axis.                 r = v.rotatex(self.anglex).rotatey(self.angley).rotatez(self.anglez)                 # transform point 3d 2d                 p = r.project(self.screen.get_width(), self.screen.get_height(), 256, 4)                 # put point in list of transformed vertices                 t.append(p)                 x, y = int(p.x), int(p.y)                 self.screen.fill((255,0,0),(x,y,2,2))               v1 in self.vertices2:                 # rotate point around x axis, around y axis, , around z axis.                 r1 = v1.rotatex(self.anglex).rotatey(self.angley).rotatez(self.anglez)                 # transform point 3d 2d                 p1 = r1.project(self.screen.get_width(), self.screen.get_height(), 256, 4)                 # put point in list of transformed vertices                 t1.append(p1)                 x, y = int(p1.x), int(p1.y)                 self.screen.fill((255,0,0),(x,y,3,3))               f in self.faces:                 pygame.draw.line(self.screen, (255,255,255), (t[f[0]].x, t[f[0]].y), (t[f[1]].x, t[f[1]].y))                 pygame.draw.line(self.screen, (255,255,255), (t[f[1]].x, t[f[1]].y), (t[f[2]].x, t[f[2]].y))                 pygame.draw.line(self.screen, (255,255,255), (t[f[2]].x, t[f[2]].y), (t[f[3]].x, t[f[3]].y))                 pygame.draw.line(self.screen, (255,255,255), (t[f[3]].x, t[f[3]].y), (t[f[0]].x, t[f[0]].y))               f1 in self.faces2:                 pygame.draw.line(self.screen, (255,255,255), (t1[f1[0]].x, t1[f1[0]].y), (t1[f1[1]].x, t1[f1[1]].y))                 pygame.draw.line(self.screen, (255,255,255), (t1[f1[1]].x, t1[f1[1]].y), (t1[f1[2]].x, t1[f1[2]].y))                 pygame.draw.line(self.screen, (255,255,255), (t1[f1[2]].x, t1[f1[2]].y), (t1[f1[3]].x, t1[f1[3]].y))                 pygame.draw.line(self.screen, (255,255,255), (t1[f1[3]].x, t1[f1[3]].y), (t1[f1[0]].x, t1[f1[0]].y))              self.anglex += 1             self.angley += 1             self.anglez += 1              pygame.display.flip()  if __name__ == "__main__":     simulation().run() 

i find answer question, , more, follow can move,rotate , scale cube can find code

here , here

save page .py in same folder, run displaywireframe3 , that´s .if want know control keys check code in displaywireframe3 guys.