CSD1130 Game Implementation Techniques Lecture 1: Ball Movement Example
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Questions and Answers

What does it mean to render objects as many times a second as the game speed?

  • Objects are rendered every other second to create a cinematic effect.
  • Objects remain completely static throughout the game loop.
  • Objects are only updated once per second to conserve computational resources.
  • Objects are updated multiple times per second to reflect their dynamic behavior. (correct)
  • How does the game loop handle the rendering of objects?

  • Objects are rendered with a delay to create a slow-motion effect.
  • Rendering happens outside the game loop to prevent performance issues.
  • A blank frame is prepared at the beginning, followed by rendering each object sequentially. (correct)
  • Objects are rendered simultaneously in random order.
  • Why does an object's position at game loop n+1 differ from its position at game loop n?

  • As a result of continuous movement causing position changes between loops. (correct)
  • Because the object is rendered only once in every two game loops.
  • Due to the object being temporarily removed from the game loop.
  • To create a glitch effect for visual appeal.
  • What is the purpose of repeating the game loop 60 times per second?

    <p>To make the ball's position change slightly from frame to frame, creating an illusion of movement</p> Signup and view all the answers

    How is the new position of the ball calculated in the game loop?

    <p>Based on a vector that specifies how the position changes along each axis</p> Signup and view all the answers

    What happens at the beginning of each game loop?

    <p>The display screen is deleted, then the background is displayed, and finally the ball is displayed at its new position</p> Signup and view all the answers

    Why is it important for a game to be real-time?

    <p>To give the illusion of concurrent events happening at the same time</p> Signup and view all the answers

    How does a game achieve the illusion of concurrent events?

    <p>By dividing the game loop into 60 pieces per second</p> Signup and view all the answers

    What is the role of the game loop in executing concurrent events?

    <p>To control concurrent events by repeating iterations every 16.66 milliseconds</p> Signup and view all the answers

    Why are game events considered pseudo-parallel?

    <p>Because each event happens at a fixed interval of 60 times a second</p> Signup and view all the answers

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