@Override
public void handleMouseInput() throws IOException {
super.handleMouseInput();
int mouseX = Mouse.getEventX() * width / mc.displayWidth;
int mouseY = height - Mouse.getEventY() * height / mc.displayHeight - 1;
Slot slot = container.getSlot(0);
if (isPointInRegion(slot.xPos - 5, slot.yPos - 5, 21, 21, mouseX, mouseY)) {
int wheel = Mouse.getDWheel();
if (wheel < 0) {
actionPerformed(nextButton);
} else if (wheel > 0) {
actionPerformed(prevButton);
}
}
}
