36 lines
987 B
PHP
36 lines
987 B
PHP
<?php
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namespace swf2ass\ass;
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use swf2ass\Constants;
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use swf2ass\MatrixTransform;
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use swf2ass\StyleRecord;
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use swf2ass\Vector2;
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class rotationTag implements ASSPositioningTag {
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private Vector2 $rotate;
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public function __construct(Vector2 $rotate) {
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$this->rotate = $rotate;
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}
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public function transitionMatrixTransform(MatrixTransform $transform): ?rotationTag {
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return self::fromMatrixTransform($transform);
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}
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public function encode(): string {
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return "\\frx{$this->rotate->x}\\fry{$this->rotate->y}";
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}
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public function equals(ASSTag $tag): bool {
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return $tag instanceof $this and $this->rotate->equals($tag->rotate);
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}
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public static function fromMatrixTransform(MatrixTransform $transform): ?rotationTag {
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$scale = $transform->getScale();
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//$rotation = $transform->getRotateSkew(); ????
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return new rotationTag(new Vector2($scale->y < 0 ? 180 : 0, $scale->x < 0 ? 180 : 0));
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}
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} |