Method getParentCoord

src/fl/stl/span.h:598–600

outputs a vec2 but takes x,y as inputs

    // outputs a vec2 but takes x,y as inputs
    vec2<i32> getParentCoord(i32 x_local, i32 y_local) const FL_NOEXCEPT {
        return {x_local + mBottomLeft.x, y_local + mBottomLeft.y};
    }

    vec2<i32> getLocalCoord(i32 x_world, i32 y_world) const FL_NOEXCEPT {
        // clamp to [mBottomLeft, mTopRight]