def __init__(self):
self.camera = Camera([15.0, 0.0, 2.5], [0.0, 0.0, 2.5],
[0.0, 0.0, 1.0])
self.aspect = 1.0
self.numP = 300
self.t = 0
# flag to rotate camera view
self.rotate = True
# save current working directory
cwd = os.getcwd()
# initialize glfw - this changes cwd
glfw.glfwInit()
# restore cwd
os.chdir(cwd)
# version hints
glfw.glfwWindowHint(glfw.GLFW_CONTEXT_VERSION_MAJOR, 3)
glfw.glfwWindowHint(glfw.GLFW_CONTEXT_VERSION_MINOR, 3)
glfw.glfwWindowHint(glfw.GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE)
glfw.glfwWindowHint(glfw.GLFW_OPENGL_PROFILE,
glfw.GLFW_OPENGL_CORE_PROFILE)
# make a window
self.width, self.height = 640, 480
self.aspect = self.width / float(self.height)
self.win = glfw.glfwCreateWindow(self.width, self.height,
b"Particle System")
# make context current
glfw.glfwMakeContextCurrent(self.win)
# initialize GL
glViewport(0, 0, self.width, self.height)
glEnable(GL_DEPTH_TEST)
glClearColor(0.2, 0.2, 0.2, 1.0)
# set window callbacks
glfw.glfwSetMouseButtonCallback(self.win, self.onMouseButton)
glfw.glfwSetKeyCallback(self.win, self.onKeyboard)
glfw.glfwSetWindowSizeCallback(self.win, self.onSize)
# create 3D
self.psys = ParticleSystem(self.numP)
self.box = Box(1.0)
# exit flag
self.exitNow = False
