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@ -112,24 +112,19 @@ uint8_t MouseWrapper_::acceleration(uint8_t cycles) {
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return i;
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return i;
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}
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}
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static int8_t roundAwayFromZero(float value) {
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if (value < 0.0f) {
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return static_cast<int8_t>(value - 0.5f);
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}
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return static_cast<int8_t>(value + 0.5f);
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}
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void MouseWrapper_::move(int8_t x, int8_t y) {
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void MouseWrapper_::move(int8_t x, int8_t y) {
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int16_t moveX = 0;
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int16_t moveX = 0;
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int16_t moveY = 0;
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int16_t moveY = 0;
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static int8_t remainderX = 0;
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static int8_t remainderX = 0;
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static int8_t remainderY = 0;
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static int8_t remainderY = 0;
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static const float HALF_SQRT_2 = 0.7071f;
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if (x != 0 && y != 0) {
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if (x != 0 && y != 0) {
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x = roundAwayFromZero(HALF_SQRT_2 * x);
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// 99 / 140 closely approximates sqrt(2) / 2.
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y = roundAwayFromZero(HALF_SQRT_2 * y);
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int8_t adjusted_x = x * 99 / 140;
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int8_t adjusted_y = y * 99 / 140;
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x = (adjusted_x == 0 ? x : adjusted_x);
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y = (adjusted_y == 0 ? y : adjusted_y);
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}
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}
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if (x != 0) {
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if (x != 0) {
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