//功能:UpdateGUI
//更新生命值GUI、子彈GUI、火箭彈GUI的狀況
void UpdateGUI()
{
// Update health gui
// The health gui is rendered using a overlay texture which is scaled down based on health
// - Calculate fraction of how much health we have left (0...1)
var healthFraction = Mathf.Clamp01(hitPoints / maximumHitPoints);
hpRect = healthGUI.pixelInset;
hpRect.xMax = healthGUI.pixelInset.xMin + healthGUIWidth * healthFraction;
// - Adjust maximum pixel inset based on it
healthGUI.pixelInset = hpRect;
// Update machine gun gui
// Machine gun gui is simply drawn with a bullet counter text
if (machineGun)
{
bulletGUI.text = machineGun.GetBulletsLeft().ToString() + "/" + machineGun.Getclips().ToString();
}
// Update rocket gui
// This is changed from the tutorial PDF. You need to assign the 20 Rocket textures found in the GUI/Rockets folder
// to the RocketTextures property.
if (rocketLauncher)
{
rocketGUI.UpdateRockets((int)rocketLauncher.ammoCount);
}
}
