public void useSkill(int idx)
{
if (pcSkills [idx].isPassive)
{
return;
}
if (pcSkillCd [idx] > 0)
{
return;
}
pcSkillCd [idx] = 5000;
if (idx == 0)
{
player.setTrap();
}
else if (idx == 1)
{
player.useShield();
}
else if (idx == 2)
{
player.useBlink();
}
}