求助！AI编辑问题！！

我想让此AI在满血时使用蓝宝石，掉血后用红宝石，血低于3/1时用白宝石，但用后武器没变化，求高手帮忙改改！谢谢





string Name = "胡一刀";
int Model = 5;
int Weapon = 17;
int Weapon2 = 26;
int Team = 0;
int View = 10000;
int Think = 10000;
int Attack1 = 30;
int Attack2 = 25;
int Attack3 = 25;
int Guard = 20;
int Dodge = 0;
int Jump = 1;
int Look = 1000;
int Burst = 30;
int Aim = 100;
int GetItem = 3;
int Spawn = 5;
int HP = 3000;


int g_selfAddr;
int g_self;
OnInit(int this)
{
g_selfAddr = this;
}


OnStart()
{
g_self = GetSelf(g_selfAddr);
ChangeBehavior(g_self, "run");
}

int trg = 0;
int timer = 0;

OnUpdate()
{

int now = GetGameTime();

if (GetHP(g_self)<=0)
{
trg = 0;
}

if (trg==0 && GetHP(g_self)==GetMaxHP(g_self))
{
Perform(g_self,"use",25);
PlayerPerform("use",25);

trg = 1;
}

if (trg==1 && GetHP(g_self)<GetMaxHP(g_self))
{
Perform(g_self,"use",23);

trg = 2;
}

if (trg==2 && GetHP(g_self)<=GetMaxHP(g_self)/3)
{
Perform(g_self,"use",24);

trg = 0;
}
}