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side grid snap

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syuilo
2026-04-21 14:28:27 +09:00
parent 3dcbfc0168
commit efaf7bdd95
2 changed files with 26 additions and 7 deletions
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13
packages/frontend/src/world/utility.ts
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@@ -576,3 +576,16 @@ export class Timer {
this.intervalIds = [];
}
}
export function getYRotationDirection(rotationY: number): '+x' | '+z' | '-x' | '-z' {
const angle = rotationY % (2 * Math.PI);
if ((angle >= 0 && angle < Math.PI / 4) || (angle >= 7 * Math.PI / 4 && angle < 2 * Math.PI)) {
return '-z';
} else if (angle >= Math.PI / 4 && angle < 3 * Math.PI / 4) {
return '-x';
} else if (angle >= 3 * Math.PI / 4 && angle < 5 * Math.PI / 4) {
return '+z';
} else {
return '+x';
}
}