Timer tutorial help.

Questions & Answers
1

In this tutorial to make a timer count down, under "function Update" we subtract the value of "Time.deltaTime" from a variable.

Here is my question, lets say that the "function Update" only refreshes every 1/10 of a second, and the variable (we will call it mytimer) is set to 5.0. At 0 seconds (from the start of the game) "function Update" refreshes and subtracts 0 from "mytimer", "myTimer" still has a value of 5.0. At 0.1 seconds (from the start of the game) "function Update" refreshes and subtracts 0.1 from "mytimer", "myTimer" now has a value of 4.9. At 0.2 seconds "function Update" refreshes again and subtracts 0.2 from "mytimer", "myTimer" now has a value of 4.7, right?... Because 0.2 seconds have past from the start of the game. But this is not what happens, Unity subtracts 0.1 (so to speak) from "myTimer" every time function Update refreshes?

2

Time.deltaTime is the time since the previous frame (hence "delta"), not since the start of the game. Time.time is from the start.

3

Wrong.

`Time.deltaTime` is the time since the last frame. If your framerate is a constant 10 (which is terri-bad), then every Update() Time.deltaTime would be 0.1.

`Time.time` is the time since the start of the game.