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24 lines
593 B
Text
24 lines
593 B
Text
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function point_rectangle_overlap(w, h, angle) {
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var x0, y0;
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var a1 = radtodeg(arctan2(h, w));
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var a2 = 90 - a1;
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if(angle < a1) {
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x0 = w;
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y0 = h / 2 - w / 2 * tan(degtorad(angle));
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} else if(angle < a1 + a2 * 2) {
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x0 = w / 2 - h / 2 * tan(degtorad(angle - 90));
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y0 = 0;
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} else if(angle < a1 + a2 * 2 + a1 * 2) {
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x0 = 0;
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y0 = h / 2 + w / 2 * tan(degtorad(angle - 180));
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} else if(angle < a1 + a2 * 2 + a1 * 2 + a2 * 2) {
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x0 = w / 2 + h / 2 * tan(degtorad(angle - 270));
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y0 = h;
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} else {
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x0 = w;
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y0 = h / 2 - w / 2 * tan(degtorad(angle));
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}
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return [x0, y0];
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}
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