tom dunigan / Mbed 2 deprecated antsnbugs

stochastic simulation, predator/prey

Dependencies:   mbed

World.h@0:fc1335b7b54f, 2019-12-23 (annotated)

Committer:
manitou
Date:
Mon Dec 23 18:56:56 2019 +0000
Revision:
0:fc1335b7b54f
stochastic simulation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
manitou 0:fc1335b7b54f 1 #ifndef WORLD_H
manitou 0:fc1335b7b54f 2 #define WORLD_H
manitou 0:fc1335b7b54f 3 #include <stddef.h>
manitou 0:fc1335b7b54f 4
manitou 0:fc1335b7b54f 5 #include "Organism.h"
manitou 0:fc1335b7b54f 6
manitou 0:fc1335b7b54f 7 // The possible moves
manitou 0:fc1335b7b54f 8 enum Move {UP = 0, DOWN, LEFT, RIGHT};
manitou 0:fc1335b7b54f 9
manitou 0:fc1335b7b54f 10 // The size of this world
manitou 0:fc1335b7b54f 11 const int ROWS = 24, COLS = 32;
manitou 0:fc1335b7b54f 12
manitou 0:fc1335b7b54f 13 // Number of initial ants
manitou 0:fc1335b7b54f 14 const int INITIAL_ANTS = 50;
manitou 0:fc1335b7b54f 15
manitou 0:fc1335b7b54f 16 // Number of initial bugs
manitou 0:fc1335b7b54f 17 const int INITIAL_BUGS = 10;
manitou 0:fc1335b7b54f 18
manitou 0:fc1335b7b54f 19 // Time steps between breeding of ants
manitou 0:fc1335b7b54f 20 const int BREED_ANTS = 3;
manitou 0:fc1335b7b54f 21
manitou 0:fc1335b7b54f 22 // Time steps between breeding of bugs
manitou 0:fc1335b7b54f 23 const int BREED_BUGS = 8;
manitou 0:fc1335b7b54f 24
manitou 0:fc1335b7b54f 25 // Time steps until bugs die if they have not eaten
manitou 0:fc1335b7b54f 26 const int STARVE_BUGS = 3;
manitou 0:fc1335b7b54f 27
manitou 0:fc1335b7b54f 28 const int NABORS = 4;
manitou 0:fc1335b7b54f 29 extern int nabors[];
manitou 0:fc1335b7b54f 30
manitou 0:fc1335b7b54f 31 struct Position
manitou 0:fc1335b7b54f 32 {
manitou 0:fc1335b7b54f 33 int x;
manitou 0:fc1335b7b54f 34 int y;
manitou 0:fc1335b7b54f 35 };
manitou 0:fc1335b7b54f 36
manitou 0:fc1335b7b54f 37 class World
manitou 0:fc1335b7b54f 38 {
manitou 0:fc1335b7b54f 39 public:
manitou 0:fc1335b7b54f 40 // Constructor: creates and initializes this world. the seed is used for
manitou 0:fc1335b7b54f 41 // seeding the random behaviour.
manitou 0:fc1335b7b54f 42 World(unsigned int seed);
manitou 0:fc1335b7b54f 43
manitou 0:fc1335b7b54f 44 // Destructor.
manitou 0:fc1335b7b54f 45 ~World();
manitou 0:fc1335b7b54f 46
manitou 0:fc1335b7b54f 47 // Returns the organism at the given coordinates.
manitou 0:fc1335b7b54f 48 Organism* getAt(int x, int y) const;
manitou 0:fc1335b7b54f 49
manitou 0:fc1335b7b54f 50 // Sets the organism org at position (x,y).
manitou 0:fc1335b7b54f 51 void setAt(int x, int y, Organism* org);
manitou 0:fc1335b7b54f 52
manitou 0:fc1335b7b54f 53 // Displays this world.
manitou 0:fc1335b7b54f 54 void display() const;
manitou 0:fc1335b7b54f 55 void print() const;
manitou 0:fc1335b7b54f 56 void plot() const;
manitou 0:fc1335b7b54f 57
manitou 0:fc1335b7b54f 58 // Simulates one time step in this world.
manitou 0:fc1335b7b54f 59 void simulateOneStep();
manitou 0:fc1335b7b54f 60
manitou 0:fc1335b7b54f 61 // Returns a random position in the grid.
manitou 0:fc1335b7b54f 62 Position randomPosition() const;
manitou 0:fc1335b7b54f 63
manitou 0:fc1335b7b54f 64 // Returns a random move (UP, DOWN, LEFT or RIGHT).
manitou 0:fc1335b7b54f 65 Move randomMove() const;
manitou 0:fc1335b7b54f 66
manitou 0:fc1335b7b54f 67 private:
manitou 0:fc1335b7b54f 68 // The grid in which the organisms live. According the to image below,
manitou 0:fc1335b7b54f 69 // the correct iteration order through grid starts at the top left
manitou 0:fc1335b7b54f 70 // corner (i.e. grid[0][0]), loops through one column at a time and ends
manitou 0:fc1335b7b54f 71 // at the bottom right corner (i.e. grid[WORLDSIZE-1][WORLDSIZE-1]).
manitou 0:fc1335b7b54f 72 //
manitou 0:fc1335b7b54f 73 // grid[0, 0] , grid[1, 0], ..., grid[WORLDSIZE-1, 0]
manitou 0:fc1335b7b54f 74 // grid[0, 1] , grid[1, 1], ..., grid[WORLDSIZE-1, 1]
manitou 0:fc1335b7b54f 75 // . .
manitou 0:fc1335b7b54f 76 // . .
manitou 0:fc1335b7b54f 77 // . .
manitou 0:fc1335b7b54f 78 // grid[0, WORLDSIZE-2], grid[1, WORLDSIZE-2], ..., grid[WORLDSIZE-1, WORLDSIZE-2]
manitou 0:fc1335b7b54f 79 // grid[0, WORLDSIZE-1], grid[1, WORLDSIZE-1], ..., grid[WORLDSIZE-1, WORLDSIZE-1]
manitou 0:fc1335b7b54f 80 //
manitou 0:fc1335b7b54f 81 // (See e.g. the destructor for correct iteration through the grid)
manitou 0:fc1335b7b54f 82 Organism* grid[ROWS][COLS];
manitou 0:fc1335b7b54f 83 unsigned long steps, step_us;
manitou 0:fc1335b7b54f 84
manitou 0:fc1335b7b54f 85 // Randomly create `count` many organisms of type `orgType`. This
manitou 0:fc1335b7b54f 86 // method uses the parameterized constructor in Ant and Bug.
manitou 0:fc1335b7b54f 87 void createOrganisms(OrganismType orgType, int count);
manitou 0:fc1335b7b54f 88
manitou 0:fc1335b7b54f 89 // Reset all organisms to not moved. This is necessary because later we
manitou 0:fc1335b7b54f 90 // iterate through the grid starting from the top left moving to the
manitou 0:fc1335b7b54f 91 // bottom right looking for an organism to move. Say if an organism
manitou 0:fc1335b7b54f 92 // moves down, we don't want to move the organism again when we reach
manitou 0:fc1335b7b54f 93 // it.
manitou 0:fc1335b7b54f 94 void resetOrganisms();
manitou 0:fc1335b7b54f 95
manitou 0:fc1335b7b54f 96 // Make every organisms in this world of type aType move. Make sure to
manitou 0:fc1335b7b54f 97 // to iterate through grid in order as specified above and only move an
manitou 0:fc1335b7b54f 98 // organism if it hasn't moved already.
manitou 0:fc1335b7b54f 99 void moveOrganism(OrganismType aType);
manitou 0:fc1335b7b54f 100
manitou 0:fc1335b7b54f 101 // Remove all dead organism from this world. Iterates through the grid
manitou 0:fc1335b7b54f 102 // and uses the method Organism::isDead() to test if an organism is
manitou 0:fc1335b7b54f 103 // dead. For this assignment in this method, only starved bugs will be
manitou 0:fc1335b7b54f 104 // removed.
manitou 0:fc1335b7b54f 105 void cleanup();
manitou 0:fc1335b7b54f 106
manitou 0:fc1335b7b54f 107 // Make every organism in this world breed. Make sure to iterate
manitou 0:fc1335b7b54f 108 // through grid in order as specified above and to only breed organisms
manitou 0:fc1335b7b54f 109 // that have moved, since breeding places new organisms on the map we
manitou 0:fc1335b7b54f 110 // don't want to try and breed those.
manitou 0:fc1335b7b54f 111 void breedOrganisms();
manitou 0:fc1335b7b54f 112 };
manitou 0:fc1335b7b54f 113
manitou 0:fc1335b7b54f 114 #endif // WORLD_H