o OZh @sdZddlZddlZz ddlZddlmZWn e y!e dwda d ddZ ddZ dd Zd d Zed kr>edSdS)ac pg.examples.vgrade This example demonstrates creating an image with numpy python, and displaying that through SDL. You can look at the method of importing numpy and pg.surfarray. This method will fail 'gracefully' if it is not available. I've tried mixing in a lot of comments where the code might not be self explanatory, nonetheless it may still seem a bit strange. Learning to use numpy for images like this takes a bit of learning, but the payoff is extremely fast image manipulation in python. For Pygame 1.9.2 and up, this example also showcases a new feature of surfarray.blit_surface: array broadcasting. If a source array has either a width or height of 1, the array is repeatedly blitted to the surface along that dimension to fill the surface. In fact, a (1, 1) or (1, 1, 3) array results in a simple surface color fill. Just so you know how this breaks down. For each sampling of time, 30% goes to each creating the gradient and blitting the array. The final 40% goes to flipping/updating the display surface The window will have no border decorations. The code also demonstrates use of the timer events. Nz;This example requires numpy and the pygame surfarray modulecCsT|s tjadStj}|tdd}t|d|dd|dd|adS) z"simple routine to time python codeNg@@gMbP? z seconds g?z.2fZfps)pgtimeZ get_tickstimerprint)messagenowZruntimer E/var/www/auris/lib/python3.10/site-packages/pygame/examples/vgrade.py stopwatch*s   r cCstj|dd}tj|dd}||}|\}}tj|dd|}t|ddtjfdgd}|||d}|d tjddddf}tj ||S) z(creates a new 3d vertical gradient arrayF)copyfloat)ZdtypeNintZuint8) nparrayget_sizeZarangerepeatZnewaxisZastyper surfarrayZ map_array)surfZtopcolorZ bottomcolordiffwidthheightcolumnr r r VertGradientColumn6s rcCsLttddd}t||d|d}tj||tjtddS)z"choose random colors and show themr)rrz Gradient:N) r np_randomrandintrrrZ blit_arraydisplayflip)rcolorsrr r r DisplayGradientGs   r#cCsttjd}dtjd<tj|tjd}tj tj tj tjd tj }|jtjtjtjfvr:n |jtjkrDt|q)tdS)N)iXi1ZSDL_VIDEO_CENTEREDri)rinitZmixerquitosenvironr set_modeZNOFRAMEeventZ set_blockedZ MOUSEMOTIONrZ set_timerZ USEREVENTwaittypeZQUITZKEYDOWNZMOUSEBUTTONDOWNr#)sizescreenr*r r r mainQs     r/__main__)N)__doc__r'ZpygamernumpyrZ numpy.randomrandomr ImportError SystemExitrr rr#r/__name__r r r r s"