Game Programmer Interview Questions and Answers

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(); }}

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

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.

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.