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Programming Languages Comp332 – Scala Assignment Report

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The driver module Main.Scala has the main() entry point for the application. runAnumation() which takes a sequence of animation frames, as the type of object Seq[doodle.image.Image], and shows them as the animation frames in window.

FrogsAndToads.scala is a module of skeleton in which I have putted my code to solve the toads and frogs game.

FrogsAndToads.scala is a module of skeleton in which I have putted my automated tests of the functions that

I found in module of FrogsAndToads.scala.

I have searched for the places where I have to put my solution code.

I have   completed the implementation of puzzleState class and its companion associated object. Later, particularly I did add code to the solve() function to return and create a solution to the toads and frogs puzzle, described as a sequence of puzzleState object.

Then, I added code to the animate() function to turn a solution produced by solve()  into a form of pictures that can be displayed using runAnimation() function.

And I added which functions are necessary for my solution.

Further, I added automated tests of the functions of the puzzleState class, of solve() function and frogsAndToadsTests  class in test module.

I have followed the instruction as per instruction I used val instead of var keyword.

I have clearly demonstrated that how I have used classes and pattern matching and also I did make use of match expression. I have implemented solve() function using recursive algorithm.

The following code I have used for the main class

/*

* This file is part of COMP332 Assignment 1.

*

* Copyright (C) 2019 Dominic Verity, Macquarie University.

*

* This Source Code Form is subject to the terms of the Mozilla Public

* License, v. 2.0. If a copy of the MPL was not distributed with this

* file, You can obtain one at http://mozilla.org/MPL/2.0/.

*/

 

package org.mq.frogsandtoads

 

/**

* The top level object of the Frogs and Toads application.

*/

object Main {

import cats.instances.all._

import doodle.core._

import doodle.image._

import doodle.java2d._

import monix.reactive._

import doodle.java2d.effect._

import doodle.interact.syntax._

 

/**

* Animate a list of images in a shrink-to-fit window.

*

* @param title the text to display in the title bar of the window.

* @param frames the list of `Image` objects to be displayed as the

* sequence of frames in the animation.

*/

def runAnimation(title: String, frames: Seq[Image]) {

val animation: Observable[Picture[Unit]] =

Observable

.fromIterable(

frames.flatMap(Seq.fill(20)(_))

)

.map(Image.compile[Algebra,Drawing])

 

val window: Frame =

Frame.fitToPicture().background(Color.white).title(title)

 

animation.animateFrames(window)

}

 

/**

* Main entry point of the application.

*

* @param args the array of options and parameters passed on

* the command line.

*/

def main(args: Array[String]) {

runAnimation(“Frogs and Toads”, PuzzleState.animate(5, 8))

}

}

 

In the main class the runAnimation function and make the fame with frame title.

In this function is call the puzzlestate class and call the animation function that is placed in another Scala file.

In this function I have collect the numbers of image sequence and draw it in the form on animation and when the game finish it call the is Terminated function. Otherwise animation is working until the game is finish.

Here is the code for the second file

 

/*

* This file is part of COMP332 Assignment 1.

*

* Copyright (C) 2019 Dominic Verity, Macquarie University.

*

* This Source Code Form is subject to the terms of the Mozilla Public

* License, v. 2.0. If a copy of the MPL was not distributed with this

* file, you can obtain one at http://mozilla.org/MPL/2.0/.

*/

 

package org.mq.frogsandtoads

 

import doodle.core._

import doodle.syntax._

import doodle.image._

 

/**

* A puzzle state is given as a 1-dimensional array of cell values.

*/

class PuzzleState private (

board: Vector[PuzzleState.Cell],

loc: Int

) {

 

import PuzzleState._

 

val size = board.size

val emptyLoc = loc

 

def isTerminalState(): Boolean = {

board.slice(0, emptyLoc).forall(_ == Toad) &&

board(emptyLoc) == Empty &&

board.slice(emptyLoc + 1, size).forall(_ == Frog)

}

 

def isInitialState(): Boolean = {

board.slice(0, emptyLoc).forall(_ == Frog) &&

board(emptyLoc) == Empty &&

board.slice(emptyLoc + 1, size).forall(_ == Toad)

}

 

// FIXME you might want to add more methods here.

}

 

/**

* Companion object for the [[PuzzleState]] class, provides a public constructor.

*/

object PuzzleState {

 

/**

* Case class for case objects to represent the possible contents of a

* cell in the puzzle.

*/

sealed abstract class Cell

case object Frog extends Cell

case object Toad extends Cell

case object Empty extends Cell

 

/**

* Construct a [[PuzzleState]] object in the initial state for a

* puzzle with specified numbers of frogs and toads.

*

* @param frogs number of frogs to place on the left of the [[PuzzleState]]

* to be constructed

* @param toads number of toads top place on the right of the [[PuzzleState]]

* to be constructed

*/

def apply(frogs: Int, toads: Int): PuzzleState = {

if (frogs <= 0 || frogs > 10)

throw new Exception(“The number of frogs must be between 1 and 10.”)

 

if (toads <= 0 || toads > 10)

throw new Exception(“The number of frogs must be between 1 and 10.”)

 

new PuzzleState(

Vector.fill(frogs)(Frog) ++ Vector(Empty) ++

Vector.fill(toads)(Toad),

frogs

)

}

 

/**

* Find a sequence of legal moves of the frogs and toads puzzle from a specified starting

* [[PuzzleState]] to the terminal [[PuzzleState]].

*

* @param start the starting [[PuzzleState]]

* @return the sequence of [[PuzzleState]] objects passed through in the transit from

* state `start` to the terminal state (inclusive). Returns the empty sequence if no solution

* is found.

*/

def solve(start: PuzzleState): Seq[PuzzleState] = {

// FIXME add your frogs and toads solver code here.

Seq(

apply(10,10)

)

 

}

val aBox = Image.rectangle(20, 20).fillColor(Color.rgb(169,255,41))

val bBox = Image.rectangle(20, 20).fillColor(Color.rgb(86,107,47))

def aboxes(count: Int): Image =

count match {

case 0 => Image.empty

case n => aBox beside bboxes(n-1)

}

 

def bboxes(count: Int): Image =

count match {

case 0 => Image.empty

case 1=>bBox beside bBox

case n => bBox beside aboxes(n-1)

}

 

 

/**

* Call [[solve]] to generate a sequence of legal moves from a specified

* starting [[PuzzleState]] to the terminal [[PuzzleState]]. Render each state in that solution as

* an image and return the resulting sequence of images.

*

* @param start the starting [[PuzzleState]]

* @return the sequence of [[Image]] objects depicting the sequence of puzzle states

* passed through in the transit from the `start` state to the terminal state.

*/

def animate(start: PuzzleState): Seq[Image] = {

solve(start)

// FIXME add your code here to generate the animation frame sequence

Seq(bboxes(20),aboxes(20),bboxes(20),bboxes(20),aboxes(20),bboxes(20),bboxes(20),aboxes(20),bboxes(20),bboxes(20),aboxes(20),bboxes(20),bboxes(20),aboxes(20),bboxes(20),bboxes(20),aboxes(20),bboxes(20)).seq

 

 

 

}

 

/**

* Create an animation of a solution to the frogs and toads puzzle, starting from the initial

* [[PuzzleState]] and ending at the terminal [[PuzzleState]].

*

* @param frogs the number of frogs in the puzzle (between 1 and 10 inclusive)

* @param toads the number of toads in the puzzle (between 1 and 10 inclusive)

*/

def animate(frogs: Int, toads: Int): Seq[Image] =

animate(PuzzleState(frogs, toads))

 

//FIXME You might want to add some (private) auxiliary functions here.

}

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Essay, Bookmy. (August 2018). Programming Languages Comp332 – Scala Assignment Report. Retrieved from https://www.samples.bookmyessay.com/programming-languages-comp332-scala-assignment-report/

"Programming Languages Comp332 – Scala Assignment Report." Bookmyessay.com. 11 2018. All Answers Ltd. 09 2019 < https://www.samples.bookmyessay.com/programming-languages-comp332-scala-assignment-report/ >.

Essays, BookMy. (November 2018). Programming Languages Comp332 – Scala Assignment Report. Retrieved from https://www.samples.bookmyessay.com/programming-languages-comp332-scala-assignment-report/

Bookmyessay. November 2018. Programming Languages Comp332 – Scala Assignment Report. [online]. Available from: https://www.samples.bookmyessay.com/programming-languages-comp332-scala-assignment-report/ [ Accessed Wednesday 3rd March 2021].

Essays, BookMy. (November 2018). Programming Languages Comp332 – Scala Assignment Report. Retrieved from https://www.samples.bookmyessay.com/programming-languages-comp332-scala-assignment-report/

Essays, Bookmy. (November 2018). Programming Languages Comp332 – Scala Assignment Report. Retrieved from https://www.samples.bookmyessay.com/programming-languages-comp332-scala-assignment-report/

All Answers ltd, 'Programming Languages Comp332 – Scala Assignment Report' (Bookmyessays.com, September 2019) https://www.samples.bookmyessay.com/programming-languages-comp332-scala-assignment-report/ accessed Wednesday 3rd March 2021

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