It calls the update_frame function every 1/10th of a second and then calls the on_draw event as well (this is done under the hood). Ok so how did we get the window to redraw continuously? We used the (update_frame, 1/10) function call. This numpy array is now of the shape 20x2 where the 2 elements are y and x in that order. We get 20 of these points and convert them to a numpy array. We will use it to generate the points which will connect with the center of the circle with a line. The PointsInCircum method (which I poached from stack overflow) gets all the points in a circle centered around 0. The first 2 floats are x, y coordinates on the scale of the size of the window (if your window is 400x400 and example for the first 2 values could be 100.0, 100.0, the z value is a value between -1 and 1 that represents depth. We will use the glVertex3f function to make a vertex in 3 dimensions taking 3 floats. Every two vertices we create in this context will be linked together as a line.
As you can see below glBegin(GL_LINES) creates a context where we can draw, you guessed it, lines and glEnd ends this context. The way drawing lines works in pyglet is that you grab an opengl context and then create vertices in this context, the vertices then get connected, in the order you declared them, in the way the context specifies. This confirms for us that on_draw is triggered once on the window load. But if your writing anycodings_cross-platform a desktop game, its perfectly competent.If you run this it should produce a black window like before and also output a printed Draw triggered! on the command line or jupyter notebook output.
Its a bit of anycodings_cross-platform a headache to install initially, and I'd anycodings_cross-platform advise against it if your planning to anycodings_cross-platform deploy mobile as you'd have to get your anycodings_cross-platform hands dirty with some messy C++ and a anycodings_cross-platform very tight runtime. I've used this anycodings_cross-platform a lot, and it works great. anycodings_cross-platform It does use Iron Python, so its not the anycodings_cross-platform C Python implementation, but at least anycodings_cross-platform its not Boo which I believe has been anycodings_cross-platform dropped from Unity anyway.Īnd heres the Unreal one. Its been a anycodings_cross-platform while since I've used the Unity one, but anycodings_cross-platform at the time it was perfectly competent. Both Unity and Unreal have excellent anycodings_cross-platform third party Python Bindings.
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