Problem Solving with C++ plus MyProgrammingLab with Pearson eText-- Access Card Package (9th Edition)
9th Edition
ISBN: 9780133862218
Author: Walter Savitch
Publisher: PEARSON
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Chapter 15, Problem 9PP
The goal for this
The ants behave according to the following model:
- Move. Every time step, randomly try to move up, down, left, or right. If the neigh boring cell in the selected direction is occupied or would move the ant off the grid, then the ant stays in the current cell.
- Breed. If an ant survives for three time steps, then at the end of the time step (that is, after moving) the ant will breed. This is simulated by creating a new ant in an adjacent (up, down, left, or right) cell that is empty. If there is no empty cell available, then no breeding occurs. Once an offspring is produced, an ant cannot produce an offspring until three more time steps have elapsed.
The doodlebugs behave according to the following model:
- Move. Every time step, if there is an adjacent ant (up, down, left, or right), then the doodlebug will move to that cell and eat the ant. Otherwise, the doodlebug moves according to the same rules as the ant. Note that a doodlebug cannot eat other doodlebugs.
- Breed. If a doodlebug survives for eight time steps, then at the end of the time step it will spawn off a new doodlebug in the same manner as the ant.
- Starve. If a doodlebug has not eaten an ant within the last three time steps, then at the end of the third time step it will starve and die. The doodlebug should then be removed from the grid of cells.
During one turn, all the doodlebugs should move before the ants do. Write a program to implement this simulation and draw the world using ASCII characters of “o“ for an ant and “X“ for a doodlebug. Create a class named Organism that encapsulates basic data common to both ants and doodlebugs. This class should have a virtual function named move that is defined in the derived classes of Ant and Doodlebug. You may need additional data structures to keep track of which critters have moved. Initialize the world with 5 doodlebugs and 100 ants. After each time step, prompt the user to press Enter to move to the next time step. You should see a cyclical pattern between the population of predators and prey, although random perturbations may lead to the elimination of one or both species.
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Chapter 15 Solutions
Problem Solving with C++ plus MyProgrammingLab with Pearson eText-- Access Card Package (9th Edition)
Ch. 15.1 - Is the following program legal (assuming...Ch. 15.1 - Prob. 2STECh. 15.1 - Is the following a legal definition of the member...Ch. 15.1 - The class SalariedEmployee inherits both of the...Ch. 15.1 - Give a definition for a class TitledEmployee that...Ch. 15.1 - Give the definitions of the constructors for the...Ch. 15.2 - You know that an overloaded assignment operator...Ch. 15.2 - Suppose Child is a class derived from the class...Ch. 15.2 - Give the definitions for the member function...Ch. 15.2 - Define a class called PartFilledArrayWMax that is...
Ch. 15.3 - Prob. 11STECh. 15.3 - Why cant we assign a base class object to a...Ch. 15.3 - What is the problem with the (legal) assignment of...Ch. 15.3 - Suppose the base class and the derived class each...Ch. 15 - Write a program that uses the class...Ch. 15 - Listed below are definitions of two classes that...Ch. 15 - Solution to Programming Project 15.1 Give the...Ch. 15 - Create a base class called Vehicle that has the...Ch. 15 - Define a Car class that is derived from the...Ch. 15 - Prob. 4PPCh. 15 - Consider a graphics system that has classes for...Ch. 15 - Flesh out Programming Project 5. Give new...Ch. 15 - Banks have many different types of accounts, often...Ch. 15 - Radio Frequency IDentification (RFID) chips are...Ch. 15 - The goal for this Programming Project is to create...Ch. 15 - Solution to Programming Project 15.10 Listed below...Ch. 15 - The computer player in Programming Project 10 does...Ch. 15 - Prob. 12PP
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