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https://github.com/Ttanasart-pt/Pixel-Composer.git
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23 lines
610 B
Plaintext
23 lines
610 B
Plaintext
function draw_line_power(x0, y0, _w, _h, c0, c1, c2, c3) {
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static SAMPLE = 32;
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var _oy;
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for(var i = 0; i <= SAMPLE; i++) {
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var t = i / SAMPLE;
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var _ry = eval_bezier_cubic(t, c0, c1, c2, c3);
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var _ny = (_h? _ry : 1 - _ry) * abs(_h) + y0;
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if(i) draw_line((i - 1) / SAMPLE * _w + x0, _oy, t * _w + x0, _ny);
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_oy = _ny;
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}
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}
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function ease_power_in(rat, pow) {
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return power(rat, pow);
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}
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function ease_power_out(rat, pow) {
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return 1 - power(1 - rat, pow);
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}
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function ease_power_inout(rat, pow) {
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return rat < 0.5 ? ease_power_in(2 * rat, pow) / 2 : (ease_power_out(2 * rat - 1, pow) + 1) / 2;
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} |