diff options
Diffstat (limited to 'engines/gob/minigames/geisha/meter.cpp')
| -rw-r--r-- | engines/gob/minigames/geisha/meter.cpp | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/engines/gob/minigames/geisha/meter.cpp b/engines/gob/minigames/geisha/meter.cpp index e3b9bd1ccf..7ec3119866 100644 --- a/engines/gob/minigames/geisha/meter.cpp +++ b/engines/gob/minigames/geisha/meter.cpp @@ -42,6 +42,10 @@ Meter::~Meter() { delete _surface; } +int32 Meter::getMaxValue() const { + return _maxValue; +} + int32 Meter::getValue() const { return _value; } @@ -59,22 +63,36 @@ void Meter::setMaxValue() { setValue(_maxValue); } -void Meter::increase(int32 n) { +int32 Meter::increase(int32 n) { + if (n < 0) + return decrease(-n); + + int32 overflow = MAX<int32>(0, (_value + n) - _maxValue); + int32 value = CLIP<int32>(_value + n, 0, _maxValue); if (_value == value) - return; + return overflow; _value = value; _needUpdate = true; + + return overflow; } -void Meter::decrease(int32 n) { +int32 Meter::decrease(int32 n) { + if (n < 0) + return increase(-n); + + int32 underflow = -MIN<int32>(0, _value - n); + int32 value = CLIP<int32>(_value - n, 0, _maxValue); if (_value == value) - return; + return underflow; _value = value; _needUpdate = true; + + return underflow; } void Meter::draw(Surface &dest, int16 &left, int16 &top, int16 &right, int16 &bottom) { |