bool input_manager::code_check_axis(input_device_item &item, input_code code)
{
// if we've already reported this one, don't bother
if (item.memory() == INVALID_AXIS_VALUE)
return false;
// ignore min/max for lightguns
// so the selection will not be affected by a gun going out of range
int32_t curval = code_value(code);
if (code.device_class() == DEVICE_CLASS_LIGHTGUN &&
(code.item_id() == ITEM_ID_XAXIS || code.item_id() == ITEM_ID_YAXIS) &&
(curval == INPUT_ABSOLUTE_MAX || curval == INPUT_ABSOLUTE_MIN))
return false;
// compute the diff against memory
int32_t diff = curval - item.memory();
if (diff < 0)
diff = -diff;
// for absolute axes, look for 25% of maximum
if (item.itemclass() == ITEM_CLASS_ABSOLUTE && diff > (INPUT_ABSOLUTE_MAX - INPUT_ABSOLUTE_MIN) / 4)
{
item.set_memory(INVALID_AXIS_VALUE);
return true;
}
// for relative axes, look for ~20 pixels movement
if (item.itemclass() == ITEM_CLASS_RELATIVE && diff > 20 * INPUT_RELATIVE_PER_PIXEL)
{
item.set_memory(INVALID_AXIS_VALUE);
return true;
}
return false;
}
int keyboard_trans_table::vkey_for_mame_code(input_code code) const
{
// only works for keyboard switches
if (code.device_class() == DEVICE_CLASS_KEYBOARD && code.item_class() == ITEM_CLASS_SWITCH)
{
input_item_id id = code.item_id();
int tablenum;
// scan the table for a match
for (tablenum = 0; tablenum < m_table_size; tablenum++)
if (m_table[tablenum].mame_key == id)
return m_table[tablenum].virtual_key;
}
return 0;
}
