I am developing a game using unity3D and I need help making a progress time bar such that on collecting particular items time is added and thus the game continues.
Create a UI Image that is of type Filled. Use horizontal or vertical fill depending on your progress bar. Then from inside a script you can manipulate the value of the image. I will give you a very simple c# example. For the rest you can just use google and read the unity scripting API.
public class Example: MonoBehaviour {
public Image progress;
// Update is called once per frame
void Update ()
{
progress.fillAmount -= Time.deltaTime;
}
}