Created
February 6, 2023 10:33
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noninteractive line visualisation using dragonruby
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| def tick args | |
| front_buffer, back_buffer = prepare_buffers args | |
| tc = args.state.tick_count | |
| w = 1280 | |
| h = 720 | |
| yoffset = (w - h) / 2 | |
| args.outputs[back_buffer].lines << [ | |
| { | |
| x: sin_range(100, w), y: cos_range(60, h) + yoffset, | |
| x2: sin_range(120, w), y2: cos_range(40, h) + yoffset, | |
| r: sin_range(100, 256), g: sin_range(70, 256), b: sin_range(40, 256), | |
| }, | |
| { | |
| x: sin_range(60, w), y: cos_range(100, h) + yoffset, | |
| x2: sin_range(50, w), y2: cos_range(140, h) + yoffset, | |
| r: sin_range(40, 256), g: sin_range(90, 256), b: sin_range(120, 256), | |
| }, | |
| ] | |
| # zoom = sin_range(200, 20) | |
| zoom = 2 | |
| zw = w - zoom * 2 | |
| zh = w - zoom * 2 | |
| args.outputs[front_buffer].sprites << { | |
| x: 0, y: 0, w: w, h: w, source_x: zoom, source_y: zoom, source_w: zw, source_h: zh, path: back_buffer, angle: Math::cos(tc / 500), a: 155, | |
| } | |
| args.outputs.sprites << { x: 0, y: 0, w: w, h: h, source_x: 0, source_y: yoffset, source_w: w, source_h: h, path: front_buffer } | |
| end | |
| def sin_range tc_scale, range | |
| half = range / 2 | |
| Math::sin(Kernel::tick_count / tc_scale) * half + half | |
| end | |
| def cos_range tc_scale, range | |
| half = range / 2 | |
| Math::cos(Kernel::tick_count / tc_scale) * half + half | |
| end | |
| def prepare_buffers args | |
| args.outputs[:s1].clear_before_render = false | |
| args.outputs[:s1].width = 1280 | |
| args.outputs[:s1].height = 1280 | |
| args.outputs[:s2].clear_before_render = false | |
| args.outputs[:s2].width = 1280 | |
| args.outputs[:s2].height = 1280 | |
| if args.tick_count.even? | |
| return :s1, :s2 | |
| else | |
| return :s2, :s1 | |
| end | |
| end |
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