John Alanbrook
938da0d4dc
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103 lines
2.2 KiB
JavaScript
103 lines
2.2 KiB
JavaScript
// bunnymark
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var render = use('render')
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var os = use('os')
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var dim = [500,500]
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render.initialize({
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width:dim.x,
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height:dim.y,
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resolution_x:dim.x,
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resolution_y:dim.y,
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mode:"letterboxed",
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refresh: 60,
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})
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var camera = {
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size: [500,500],
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transform: os.make_transform(),
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fov:50,
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near_z: 0,
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far_z: 1000,
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surface: undefined,
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viewport: {x:0,y:0,width:1,height:1},
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ortho:true,
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anchor:[0,0],
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}
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var draw = use('draw2d')
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var sprite = use('lcdsprite')
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var graphics = use('graphics')
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var bunny = graphics.texture('tests/bunny')
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var center = [0.5,0.5]
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var vel = 50
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function hsl_to_rgb(h, s, l) {
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var c = (1 - Math.abs(2 * l - 1)) * s
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var x = c * (1 - Math.abs((h / 60) % 2 - 1))
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var m = l - c / 2
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var r = 0, g = 0, b = 0
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if (h < 60) { r = c; g = x }
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else if (h < 120) { r = x; g = c }
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else if (h < 180) { g = c; b = x }
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else if (h < 240) { g = x; b = c }
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else if (h < 300) { r = x; b = c }
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else { r = c; b = x }
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return [r + m, g + m, b + m, 1] // 0‒1 floats, alpha = 1
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}
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var bunny_count = 2000
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for (var i = 0; i < bunny_count; i++) {
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var pct = i/bunny_count
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var sp = sprite.create(bunny, [Math.random()*dim.x*pct, Math.random()*dim.y*pct], center)
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sp.dir = [Math.random()*vel, Math.random()*vel]
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var hue = 270 * i / bunny_count
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sp.color = hsl_to_rgb(hue, 0.5, 0.5)
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}
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function movendraw(sp)
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{
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sp.move([sp.dir[0]*dt, sp.dir[1]*dt])
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// sp.draw()
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}
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var dt = 0
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var fps_samples = []
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var fps_window = 10
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var fps_update_period = 0.5
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var last_fps_update = os.now()
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function loop()
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{
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var now = os.now()
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render.clear([22/255,120/255,194/255,255/255])
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render.camera(camera)
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// sprite.forEach(movendraw)
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var queue = sprite.queue()
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for (var q of queue)
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render.geometry(q.image.texture, q.mesh)
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render.present()
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dt = os.now() - now
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fps_samples.push(dt)
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if (fps_samples.length > fps_window) fps_samples.shift()
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if (now - last_fps_update >= fps_update_period) {
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var sum = 0
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for (var i = 0; i < fps_samples.length; i++) sum += fps_samples[i]
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prosperon.window.title = `Bunnymark [fps: ${(fps_samples.length/sum).toFixed(1)}]`;
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last_fps_update = now
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}
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var delay = (1/60) - dt
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$_.delay(loop, delay)
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}
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loop()
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