def rotate_absolute(self,axis,angle):
# rotate the object
self.makeCurrent()
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
t = [self._modelview_matrix[3][0], self._modelview_matrix[3][1], self._modelview_matrix[3][2]]
glTranslatef(t[0], t[1], t[2])
glRotated(angle, axis[0], axis[1], axis[2])
glTranslatef(-t[0], -t[1], -t[2])
matrix = glGetDoublev(GL_MODELVIEW_MATRIX)
matrix[3][0], matrix[3][1],matrix[3][2] = t
glLoadMatrixd(matrix)
# update _modelview_matrix
self._modelview_matrix = glGetDoublev(GL_MODELVIEW_MATRIX)
def load_view_matrix(self,view_matrix):
self.makeCurrent()
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
glLoadMatrixd(view_matrix)
self._modelview_matrix = glGetDoublev(GL_MODELVIEW_MATRIX)
def paintGL(self):
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glMatrixMode(GL_MODELVIEW)
glLoadMatrixd(self._modelview_matrix)
def reset_rotation(self):
self._modelview_matrix[0] = [1.0, 0.0, 0.0, 0.0]
self._modelview_matrix[1] = [0.0, 1.0, 0.0, 0.0]
self._modelview_matrix[2] = [0.0, 0.0, 1.0, 0.0]
glMatrixMode(GL_MODELVIEW)
glLoadMatrixd(self._modelview_matrix)
def start():
pygame.init()
screen = pygame.display.set_mode(SCREEN_SIZE, pygame.HWSURFACE|pygame.OPENGL|pygame.DOUBLEBUF)
resize(*SCREEN_SIZE)
init()
clock = pygame.time.Clock()
# This object renders the 'map'
map = Map()
# Camera transform matrix
cam_matrix = Matrix44()
cam_matrix.translate = (10.0, 0.6, 10.0)
# Initialize speeds and directions
rotation_direction = Vector3()
rotation_speed = radians(90.0)
movement_direction = Vector3()
movement_speed = 5.0
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
if event.type == pygame.KEYUP and event.key == pygame.K_ESCAPE:
pygame.quit()
quit()
# Clear the screen, and z-buffer
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
time_passed = clock.tick()
time_passed_seconds = time_passed / 1000.0
pressed_keys = pygame.key.get_pressed()
# Reset rotation and movement directions
rotation_direction.set(0.0, 0.0, 0.0)
movement_direction.set(0.0, 0.0, 0.0)
# Modify direction vectors for key presses
if pressed_keys[pygame.K_LEFT]:
rotation_direction.y = +1.0
elif pressed_keys[pygame.K_RIGHT]:
rotation_direction.y = -1.0
if pressed_keys[pygame.K_UP]:
rotation_direction.x = -1.0
elif pressed_keys[pygame.K_DOWN]:
rotation_direction.x = +1.0
if pressed_keys[pygame.K_z]:
rotation_direction.z = -1.0
elif pressed_keys[pygame.K_x]:
rotation_direction.z = +1.0
if pressed_keys[pygame.K_q]:
movement_direction.z = -1.0
elif pressed_keys[pygame.K_a]:
movement_direction.z = +1.0
# Calculate rotation matrix and multiply by camera matrix
rotation = rotation_direction * rotation_speed * time_passed_seconds
rotation_matrix = Matrix44.xyz_rotation(*rotation)
cam_matrix *= rotation_matrix
# Calcluate movment and add it to camera matrix translate
heading = Vector3(cam_matrix.forward)
movement = heading * movement_direction.z * movement_speed
cam_matrix.translate += movement * time_passed_seconds
# Upload the inverse camera matrix to OpenGL
glLoadMatrixd(cam_matrix.get_inverse().to_opengl())
# Light must be transformed as well
glLight(GL_LIGHT0, GL_POSITION, (0, 1.5, 1, 0))
map.render()
pygame.display.flip()
def reset_rotation(self):
self._modelview_matrix[0] = [1.0, 0.0, 0.0, 0.0]
self._modelview_matrix[1] = [0.0, 1.0, 0.0, 0.0]
self._modelview_matrix[2] = [0.0, 0.0, 1.0, 0.0]
glMatrixMode(GL_MODELVIEW)
glLoadMatrixd(self._modelview_matrix)
def paintGL(self):
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glMatrixMode(GL_MODELVIEW)
glLoadMatrixd(self._modelview_matrix)
def load_hardware(self) : ''' Load the current matrix instance as the, display, MODELVIEW matrix. ''' glMatrixMode(GL_MODELVIEW) glLoadMatrixd(self.main_matrix)
