CSCI 340 Test 1 Spring 2020

• Viewport or a graphical preview of the game.
• Word Outliner or a list of items contained in the current level
• Details Pannel or a detailed view of the item currently selected
• Content browser or a listing of all assets in the project
• Main toolbar or quick access to a list of commands.

• [8 points] Describe or name the different uses and give examples of the use of each.
  • Vectors can be used to store three values such as x-y-z locations or r-g-b color values. This is demonstrated by the output of GetWorldLocation in the blueprint below.
  • Vectors can also be used to hold a direction and a magnitued. This is illustrated by the output of the x node. The reason the vector is multipled by a constant is to scale the magnitude of the vector.
• [4 points] Describe what the following blueprint segment computes.
• The blueprint computes a direction-magnitued vector or a position a given distance and given direction from the starting point.

In AEC Blueprints by Example he stressed the importance of design and testing, as did I in these notes.

The construction script is much like the constructor of an object. It is run when the object defined by the blueprint is instanciated or created. The purpose is to initialize the blueprint or set up the initial values of the variables.

• 
• [3 points] What is the purpose of this node?

  Given valid inputs, this node will interpolate between the values of A and B.

• [5 points] What are the inputs to this node? List any limitations on the inputs to the node.
  • alpha - a value between 0 and 1
  • A a starting value, no limitations
  • B an ending value, no limitations.
• [2 points] What is the output of this node?

  A value between A and B.

• [4 points] Provide the equation that this node implements.

  $output = A(1-alpha) + B(alpha)$

• 
• Note: Destination and CurrentLocation are ints, Destinations is an array of vectors.

  void ChooseRandomDestination() {
      // class variables 
      // int Destination
      // int CurrentLocation
      // vector Destinations[];
  
      while (Destination == CurrentLocation) {
          Destination = RandBetween(0, Destinations.size()-1);
      }
  }