LecLabs 4.2 - functions and lists

Lecture video on Functions

Objective

Create a scheme program that reads in single word and returns the string info on it

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Requirements

• Prompt user to "Enter word: "
• Read the user's input
• Call string-info and store in a variable
• Print the stored string information

Lecture video on List Operations

Lecture video on Recursion

Lecture video on Higher Order Functions

Objective

Create a scheme program that reads in a word and a value. A sub string is created starting from start of string to the index marked by value. The sub string is moved to the end of the string.

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Requirements

• Prompt user to "Enter a word: "
• Read the user's input
• Prompt user to "Enter a number: "
• Read the user's input
• Call mangle-word function
  • Use the word and number to return the mangled word
• Print the stored string information

Objective

Create a scheme script that calculates damanage for a fantasy game.

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Requirements

• Generate the parameters
  • modifier between 1 and +2
  • defense between 1 and 10
  • critical multiplier between 1.0 and 2.5
  • armor reduction factor between 0 and 2
• Calculate damage
  • Calcualte the attack value using roll-die
  • Calculate damage using the following formula

                  ┌                                                           ┐
                  |    ┌  attack-roll * level * Modifier * crit   ┐           |
    damage = max | 0, | -----------------------------------------| - defense |
                  |    └           armor-reduction-factor         ┘           |
                  └                                                           ┘
      

• Do the damage calc
  • Receives the parameter list (modifier, defense, crtical, armor reduction factor)
  • Calls calculate damage
  • Calls show-data