def main():
pygame.init()
pygame.display.set_caption('AspectRatioPlay')
display = (800, 600)
pygame.display.set_mode(display, DOUBLEBUF|OPENGL)
gluPerspective(45, (display[0]/display[1]), 0.1, 50.0)
initial_camera_pos = (0, 0, -5)
glTranslatef(initial_camera_pos[0], initial_camera_pos[1], initial_camera_pos[2])
T = Triangle(v1 = (0, 0, 0),
v2 = (1, 0, 0),
v3 = (0, 1, 0))
try:
new_aspect_ratio = T.aspect_ratio()
except:
new_aspect_ratio = -1
prev_aspect_ratio = new_aspect_ratio
valid_t = new_aspect_ratio != -1
t_step_size = 0.0005
t = { 'x' : 0, 'y' : 0, 'z' : 0 }
a_step_size = 0.0005
angle = 0
ctrl_v = 1
WHITE = (1, 1, 1)
RED = (1, 0, 0)
GREEN = (0, 1, 0)
YELLOW = (1, 1, 0)
Usage()
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_a:
t['x'] -= t_step_size
if event.key == pygame.K_d:
t['x'] += t_step_size
if event.key == pygame.K_w:
t['y'] += t_step_size
if event.key == pygame.K_s:
t['y'] -= t_step_size
if event.key == pygame.K_q:
angle += a_step_size
if event.key == pygame.K_e:
angle -= a_step_size
if event.key == pygame.K_SPACE:
t = { 'x' : 0, 'y' : 0, 'z' : 0 }
angle = 0
if event.key == pygame.K_TAB:
if ctrl_v == 3:
ctrl_v = 1
else:
ctrl_v += 1
if event.key == pygame.K_r:
T = Triangle(v1 = (0, 0, 0),
v2 = (1, 0, 0),
v3 = (0, 1, 0))
if event.key == pygame.K_h:
Usage()
""" Update shapes """
if ctrl_v == 1:
T.move_v1((t['x'], t['y'], t['z']))
cur_p = T.v1
elif ctrl_v == 2:
T.move_v2((t['x'], t['y'], t['z']))
cur_p = T.v2
elif ctrl_v == 3:
T.move_v3((t['x'], t['y'], t['z']))
cur_p = T.v3
T.rotate(angle=angle, axis='x', fixed=2)
try:
new_aspect_ratio = T.aspect_ratio()
except:
new_aspect_ratio = -1
valid_t = new_aspect_ratio != -1
""" Clear Screen """
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT)
""" Drawing stuff """
DrawPoint(cur_p, RED, 5)
if valid_t:
DrawTriangle(T, WHITE)
else:
DrawTriangle(T, RED)
""" Update screen """
pygame.display.flip()
pygame.time.wait(10) # milliseconds
""" Console write stuff """
if prev_aspect_ratio != new_aspect_ratio:
print(f'Aspect Ratio = {new_aspect_ratio}')
""" Finally """
prev_aspect_ratio = new_aspect_ratio
