@benev/nubs/x/elements/stickpad/utils/calculate_offset.js

user-input system for web games

export function calculate_offset(event, basis, area_rect) {
    const half_basis_width = basis.rect.width / 2;
    return [
        (event.clientX - area_rect.left) - half_basis_width,
        (event.clientY - area_rect.top) - half_basis_width,
    ];
}
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