Game Programmer

Game Programmer Interview Questions and Answers

Updated 26 Sep 2023

Q1. How to make an update function from a coroutine

Ans.

To make an update function from a coroutine, you can use a while loop with a yield statement to control the timing of updates.

  • Use a while loop in the coroutine to continuously run the update function.

  • Use a yield statement to control the timing of updates, such as WaitForSeconds for a delay.

  • Example: IEnumerator UpdateCoroutine() { while(true) { yield return new WaitForSeconds(1.0f); UpdateFunction(); }}

Q2. What is the use of Fixed Update

Ans.

Fixed Update is a method in Unity used for physics calculations and updates at a fixed time interval.

  • Used for physics calculations and updates in Unity game development

  • Executed at a fixed time interval, not tied to frame rate

  • Ideal for physics-related operations like rigidbody movement

  • Helps maintain consistent physics behavior across different devices

Q3. What is time.deltatime

Ans.

Time.deltaTime is a variable in Unity that represents the time in seconds it took to complete the last frame.

  • Time.deltaTime is used to make movement and animations frame rate independent.

  • It is often used in calculations involving movement, physics, and animations.

  • For example, multiplying a speed value by Time.deltaTime ensures consistent movement speed regardless of frame rate.

Q4. What is an Interface

Ans.

An interface in programming is a set of methods that a class must implement. It defines the behavior of a class without specifying how it is implemented.

  • Interfaces allow for multiple inheritance in programming languages that do not support it.

  • Classes can implement multiple interfaces, allowing them to have different behaviors.

  • Interfaces are used to define contracts that classes must follow, ensuring consistency and flexibility in code design.

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