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The pan left/right bit works, but the rotation is all screwy. Does anyone have a better way of doing this? Any help would be appreciated.
Can someone help me out? Here's the code I think applies:
# from main.py # === MAIN PROGRAM LOOP === # initialize camera and viewport gfxInit() # for rotating the camera (default count) keyint = 4 # for moving the camera (default values) axX = 0 axY = 0 axZ = 0 while True: # get the event key = pygame.key.get_pressed() for event in pygame.event.get(): # if the user clicked the X button, end program if event.type == pygame.QUIT: return # if the user presses and holds F4 and left or right ALT keys, end program if event.type == KEYDOWN and event.key == K_F4 and (key[K_LALT] or key[K_RALT]): return # if RIGHT ARROW pressed then rotate view right if event.type == KEYDOWN and (event.key == K_COMMA or event.key == K_LESS): keyint += 1 # if LEFT ARROW pressed then rotate view left if event.type == KEYDOWN and (event.key == K_PERIOD or event.key == K_GREATER): keyint -= 1 # if RIGHT ARROW pressed then move view right relative to view if event.type == KEYDOWN and event.key == K_RIGHT: view = abs(keyint % 4) if view == 0: axX += 5 axZ -= 5 if view == 1: axX -= 5 axZ -= 5 if view == 2: axX -= 5 axZ += 5 if view == 3: axX += 5 axZ += 5 # if LEFT ARROW pressed then move view left relative of view if event.type == KEYDOWN and event.key == K_LEFT: view = abs(keyint % 4) if view == 0: axX -= 5 axZ += 5 if view == 1: axX += 5 axZ += 5 if view == 2: axX += 5 axZ -= 5 if view == 3: axX -= 5 axZ -= 5 # if UP ARROW pressed then move view "up" relative to view if event.type == KEYDOWN and event.key == K_UP: view = abs(keyint % 4) if view == 0: axX -= 5 axZ -= 5 if view == 1: axX -= 5 axZ += 5 if view == 2: axX += 5 axZ += 5 if view == 3: axX += 5 axZ -= 5 # if DOWN KEY pressed then move view "down" relative to view if event.type == KEYDOWN and event.key == K_DOWN: view = abs(keyint % 4) if view == 0: axX += 5 axZ += 5 if view == 1: axX += 5 axZ -= 5 if view == 2: axX -= 5 axZ -= 5 if view == 3: axX -= 5 axZ += 5 # if HOME key pressed reset view if event.type == KEYDOWN and event.key == K_HOME: keyint = 0 axX = 0 axY = 0 axZ = 0 gfxCamera(keyint, axX, axY, axZ) gfxShowCoords() drawMap(mapWidth, mapArray) pygame.display.flip() # update the screen with what we've drawn # === MAIN LOOP END ===
And my camera function
# from gfx.py def gfxCamera(keyint, axX, axY, axZ): """ Modifies the view by X, Y, Z axes and rotates. """ glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT) #clear the color and depth buffers glLoadIdentity() #clear current (in this case, modelview) matrix to the identity matrix view = abs(keyint % 4) if view == 0: # default view: distance from look-at, coords of look-at, vertical angle gluLookAt((axX+15),(axY+15),(axZ+15), axX,axY,axZ, 0,1,0) if view == 1: gluLookAt((axX+15),(axY+15),(axZ-15), axX,axY,axZ, 0,1,0) if view == 2: gluLookAt((axX-15),(axY+15),(axZ-15), axX,axY,axZ, 0,1,0) if view == 3: gluLookAt((axX-15),(axY+15),(axZ-15), axX,axY,axZ, 0,1,0)
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