chore: Add course material

This commit is contained in:
2026-10-05 11:27:21 +02:00
parent 971813c351
commit e8241fd1ff
660 changed files with 26658 additions and 1 deletions
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#include "CursesObj.h"
#include "curses.h"
CursesObj::CursesObj() {
// Colours 0 to 7 are defined by curses. But we need grey as well
// Define a suitable constant here (and create the colour later)
const int COLOR_GREY = 8;
initscr(); /* initialize the curses library */
nonl(); /* tell curses not to do NL->CR/NL on output */
cbreak(); /* take input chars one at a time, no wait for \n */
nodelay(stdscr, FALSE);
noecho(); /* echo input - in color */
curs_set(0);
intrflush(stdscr, FALSE);
if (has_colors()) {
start_color();
/*
* Simple color assignment, often all we need. Color pair 0 cannot
* be redefined. This example uses the same value for the color
* pair as for the foreground color, though of course that is not
* necessary:
*/
init_pair(1, COLOR_RED, COLOR_BLACK);
init_pair(2, COLOR_GREEN, COLOR_BLACK);
init_pair(3, COLOR_YELLOW, COLOR_BLACK);
init_pair(4, COLOR_BLUE, COLOR_BLACK);
init_pair(5, COLOR_CYAN, COLOR_BLACK);
init_pair(6, COLOR_MAGENTA, COLOR_BLACK);
init_pair(7, COLOR_WHITE, COLOR_BLACK);
// Create 'grey' and then use it as foreground colour
init_color(8, 1, 333, 333);
init_pair(8, COLOR_GREY, COLOR_BLACK);
}
}
CursesObj::~CursesObj() {
clear();
refresh();
endwin();
}
CursesObj &CursesObj::Instance() {
static CursesObj instance;
return instance;
}
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#ifndef CURSESOBJ_H
#define CURSESOBJ_H
class CursesObj {
private:
CursesObj();
~CursesObj();
public:
static CursesObj &Instance();
};
#endif
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#ifndef KEYBOARD_H
#define KEYBOARD_H
class Keyboard {
public:
Keyboard();
bool isCharAvail();
char getChar();
private:
};
#endif
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#include "Keyboard.h"
#include <conio.h>
Keyboard::Keyboard() {}
bool Keyboard::isCharAvail() {
// 'return kbhit()' is sufficient, but Microsoft
// issues a warning 'coercing int to bool' and encourages
// the use of '!=0' to eliminate it
return _kbhit() != 0;
}
char Keyboard::getChar() { return _getch(); }
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#include "Keyboard.h"
#include "CursesObj.h"
#include "curses.h"
Keyboard::Keyboard() {
CursesObj::Instance(); // Force initialization
nodelay(stdscr, FALSE); // Default to block on getch
}
bool Keyboard::isCharAvail() {
nodelay(stdscr, TRUE); // getch must not block for this polling
int c; // DON'T make this 'char'; 'ERR' may be an 'int' - on some systems,
// just like 'EOF'
bool charWaiting = (c = getch()) != ERR; // If getch returns ERR, no char
// waiting, otherwise, next char is
// returned
if (charWaiting)
ungetch(c); // We got a char; put it back! (We just want to know if there
// is one waiting.)
return charWaiting;
}
char Keyboard::getChar() { return getch(); }
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#ifndef SCREEN_H
#define SCREEN_H
#include <string>
namespace Screen {
const int BLACK = 0;
const int GRAY = 8; // FOREGROUND_INTENSITY;
const int BLUE = 9; // FOREGROUND_RED|FOREGROUND_INTENSITY
const int GREEN = 10; // FOREGROUND_GREEN|FOREGROUND_INTENSITY;
const int RED = 12; // FOREGROUND_RED|FOREGROUND_INTENSITY
const int YELLOW = RED | GREEN;
const int WHITE = RED | GREEN | BLUE;
const int BACKGROUND = 128; // OR (|) with the color value for gray background
void write(std::string s, int x, int y, int color);
};
#endif
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#include <conio.h>
#include <string>
#include <windows.h>
using std::string;
#include "Screen.h"
namespace {
HANDLE hStdout = 0;
}
void Screen::write(string s, int x, int y, int color) {
if (hStdout == 0) {
hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
}
COORD screenPos;
screenPos.X = x;
screenPos.Y = y;
unsigned long ln;
static unsigned short attrib[80];
for (unsigned int i = 0; i < s.length(); ++i) {
attrib[i] = color;
}
WriteConsoleOutputAttribute(hStdout, attrib, s.length(), screenPos, &ln);
WriteConsoleOutputCharacter(hStdout, s.c_str(), s.length(), screenPos, &ln);
}
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#include "Screen.h"
#include "CursesObj.h"
#include "curses.h"
#include <stdio.h>
#include <string.h>
// Forward declarations
int ConvertColour(int);
void Screen::write(std::string s, int x, int y, int color) {
CursesObj::Instance(); // Force initialization
if (color >= 128)
color -= 128; // Remove gray background - does not work on Linux
std::string blank_str(s.length(), ' ');
mvaddstr(y, x, blank_str.c_str()); // Always draw a black
refresh();
if (color != Screen::BLACK) // If colour is not black, also draw the color
{
printf("\e[%i;3%im", 0, ConvertColour(color));
fflush(stdout);
mvaddstr(y, x, s.c_str());
refresh();
}
}
typedef struct {
int pelio_colour;
int curses_color_pair;
} Entry;
// Entry null pointer
const Entry *ENTRY_NP = (Entry *)0;
typedef Entry Table[];
Table ColourTable = {{Screen::GRAY, 8}, // Display as white
{Screen::BLUE, 4}, {Screen::GREEN, 2}, {Screen::RED, 1}, {Screen::YELLOW, 3}, {Screen::WHITE, 7}};
const int LEN_TAB = sizeof ColourTable / sizeof ColourTable[0];
const Entry *TabSearch(Table t, int nEntries, int colour) {
Entry *p;
for (p = t; p < t + nEntries && p->pelio_colour != colour; p++)
; // EMPTY BODY
return (p < t + nEntries) ? p : ENTRY_NP;
}
int ConvertColour(int colour) {
int result = 0;
const Entry *p;
p = TabSearch(ColourTable, LEN_TAB, colour); // Search the table for the colour specified
if (p != ENTRY_NP) // If the colour is in the table ...
result = p->curses_color_pair; // ... return the 'int' for the associated
// curses colour pair
return result;
}
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GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
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#include "Light.h"
#include "CursesObj.h"
#include "Pelican.h"
#include "Screen.h"
#include <iostream>
Light::Light(std::string name, int x, int y, int color) : x(x), y(y), c(color), name(name) {}
Light::~Light() {
std::cout << "Deleting light (" << name << ", " << x << ", " << y << ", " << c << ")" << std::endl;
std::cout.flush();
}
void Light::set(LightState newState) {
state = newState;
Screen::write(name.c_str(), x, y, state == FLASH ? (128 + c) : (state == OFF ? 0 : c));
// 128 + color was used to make a character flash (but not any more)
}
Light::LightState Light::get(void) { return state; }
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// ======================================================
//
// Represents a light, implemented as a string written
// to a console window
//
// ======================================================
#ifndef LIGHT_H
#define LIGHT_H
#include <string>
class Light {
public:
Light(std::string name, int x, int y, int color);
~Light();
enum LightState { ON, OFF, FLASH };
void set(LightState new_state);
LightState get(void);
private:
int c; // light colour
int x, y;
std::string name;
LightState state;
};
#endif
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#include "Pelican.h"
#include "PelicanTimer.h"
#include "Pole.h"
Pelican::Pelican(int x, int y)
: pressed(false), RED_TIME(4), YELLOW_TIME(2), GREEN_TIME(3), FLASH_TIME(5), myPole(new Pole(x, y)),
state(GREEN_IDLE) {
myTimer = new PelicanTimer(*this, &Pelican::timerExpired);
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
}
Pelican::~Pelican() { delete myPole; }
void Pelican::press(void) {
if (state == GREEN_IDLE) {
state = YELLOW_STATE;
myTimer->timeoutRequest(YELLOW_TIME);
pressed = true;
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
} else if (state != RED_STATE) {
pressed = true;
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
}
}
void Pelican::timerExpired(void) {
switch (state) {
case RED_STATE:
state = YELLOW_FLASHING;
myTimer->timeoutRequest(FLASH_TIME);
break;
case YELLOW_FLASHING:
state = GREEN_TIMING;
myTimer->timeoutRequest(GREEN_TIME);
break;
case GREEN_TIMING:
if (pressed) {
state = YELLOW_STATE;
myTimer->timeoutRequest(YELLOW_TIME);
} else {
state = GREEN_IDLE;
}
break;
case GREEN_IDLE:
// should never happen
break;
case YELLOW_STATE:
state = RED_STATE;
pressed = false;
myTimer->timeoutRequest(RED_TIME);
break;
}
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
}
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// ======================================================
//
// Represents a Pelican crossing
//
// ======================================================
#ifndef PELICAN_H
#define PELICAN_H
class PelicanTimer;
class Pole;
class Pelican {
public:
Pelican(int x, int y);
~Pelican();
// call when the WAIT button has been pressed
void press(void);
// states that a Pelican can be in
enum PelicanState { RED_STATE, YELLOW_FLASHING, GREEN_TIMING, GREEN_IDLE, YELLOW_STATE };
bool isPressed() const { return pressed; }
PelicanState getState() const { return state; }
private:
// state that this Pelican is in
PelicanState state;
// called by PeleicanTimer when the lights need to change
void timerExpired(void);
const unsigned int RED_TIME;
const unsigned int YELLOW_TIME;
const unsigned int GREEN_TIME;
const unsigned int FLASH_TIME;
// indicates whether the WAIT light should be on
bool pressed;
Pole *myPole;
// Timer that indicates when the lights should change
PelicanTimer *myTimer;
private:
// prevent general use of copy ctor and operator=
Pelican(const Pelican &);
Pelican &operator=(const Pelican &);
};
#endif
+10
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@@ -0,0 +1,10 @@
#include "PelicanTimer.h"
PelicanTimer::PelicanTimer(Pelican &target, TargetFunc targetFunc) : myTarget(target), myTargetFunc(targetFunc) {}
void PelicanTimer::tick() {
if (isExpired()) {
(myTarget.*myTargetFunc)();
}
}
+27
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@@ -0,0 +1,27 @@
// ======================================================
//
// This class specializes the Timer to enable it to
// stimulate a Pelican
//
// ======================================================
#ifndef PELICANTIMER_H
#define PELICANTIMER_H
#include "Pelican.h"
#include "Timer.h"
class PelicanTimer : public Timer {
public:
typedef void (Pelican::*TargetFunc)();
PelicanTimer(Pelican &target, TargetFunc targetFunc);
virtual void tick();
private:
Pelican &myTarget;
TargetFunc myTargetFunc;
};
#endif
+59
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@@ -0,0 +1,59 @@
#include "Pole.h"
#include "Screen.h"
Pole::Pole(int x, int y) : waitLight(new Light("WAIT", x + 6, y + 12, Screen::WHITE)) {
using namespace Screen;
lights[RED_LIGHT] = new Light("*", x + 11, y + 3, RED);
lights[RED_MAN] = new Light("*<-=", x + 6, y + 4, RED);
lights[YELLOW_LIGHT] = new Light("*", x + 11, y + 5, YELLOW);
lights[GREEN_LIGHT] = new Light("*", x + 11, y + 7, GREEN);
lights[GREEN_MAN] = new Light("*|-<", x + 6, y + 7, GREEN);
write(" _____ ", x, ++y, GRAY);
write(" /___ /| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" | |/| ", x, ++y, GRAY);
write(" |____| | ", x, ++y, GRAY);
write(" | |/| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" |____|/ ", x, ++y, GRAY);
write(" _||__ ", x, ++y, GRAY);
write(" /___ /| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" |____|/ ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write("========||===========", x, ++y, GRAY);
write(" / || / ", x, ++y, GRAY);
write("_ /_________ /_ ", x, ++y, GRAY);
write("/ / ", x, ++y, GRAY);
}
Pole::~Pole() {
for (int i = 0; i < sizeof lights / sizeof(lights[0]); ++i)
delete lights[i];
delete waitLight;
}
void Pole::setTrafficLights(Pelican::PelicanState state) {
static const Light::LightState LightStates[Pelican::YELLOW_STATE + 1][RED_MAN + 1] = {
// red yellow green green man red man
{Light::ON, Light::OFF, Light::OFF, Light::ON, Light::OFF}, // red
{Light::OFF, Light::FLASH, Light::OFF, Light::FLASH, Light::OFF}, // y flash
{Light::OFF, Light::OFF, Light::ON, Light::OFF, Light::ON}, // g time
{Light::OFF, Light::OFF, Light::ON, Light::OFF, Light::ON}, // g idle
{Light::OFF, Light::ON, Light::OFF, Light::OFF, Light::ON} // yellow
};
for (int i = RED_LIGHT; i <= RED_MAN; i++) {
lights[i]->set(LightStates[state][i]);
}
}
void Pole::setWaitLight(bool pressed) { waitLight->set(pressed ? Light::ON : Light::OFF); }
+27
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@@ -0,0 +1,27 @@
// ======================================================
// The Pole presenting the Pelican
// ======================================================
#ifndef POLE_H
#define POLE_H
#include "Light.h"
#include "Pelican.h"
class Pole {
public:
Pole(int x, int y);
~Pole();
void setTrafficLights(Pelican::PelicanState state);
void setWaitLight(bool pressed);
private:
enum LightName { RED_LIGHT, YELLOW_LIGHT, GREEN_LIGHT, GREEN_MAN, RED_MAN };
Light *lights[RED_MAN + 1];
Light *waitLight;
};
#endif
+17
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@@ -0,0 +1,17 @@
#include "Timer.h"
#include "TimerSet.h"
void Timer::timeoutRequest(int seconds) { timeToGo = seconds; }
Timer::Timer() : timeToGo(-1) { theTimerSet.addATimer(this); }
bool Timer::isExpired() {
if (timeToGo > 0) {
if (--timeToGo == 0) {
return true;
}
}
return false;
}
+27
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@@ -0,0 +1,27 @@
// ======================================================
//
// A general-purpose countdown timer
// To use this class, specialize it
// and override tick()
//
// ======================================================
#ifndef TIMER_H
#define TIMER_H
class Timer {
public:
Timer();
void timeoutRequest(int seconds);
virtual void tick() = 0;
protected:
bool isExpired();
private:
int timeToGo;
};
#endif
+20
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@@ -0,0 +1,20 @@
#include "TimerSet.h"
#include "Timer.h"
TimerSet theTimerSet;
// Member functions
TimerSet::TimerSet() : timersInUse(0), previousTime(time(&previousTime)) {}
void TimerSet::addATimer(Timer *t) { timers[timersInUse++] = t; }
void TimerSet::pollAllTimers() {
std::time_t timeNow;
if (time(&timeNow) > previousTime) {
previousTime = timeNow;
for (int i = 0; i < timersInUse; ++i) {
timers[i]->tick();
}
}
}
+23
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@@ -0,0 +1,23 @@
#ifndef TIMERSET_H
#define TIMERSET_H
#include <ctime>
class Timer;
class TimerSet {
public:
TimerSet();
void pollAllTimers();
void addATimer(Timer *);
private:
Timer *timers[40];
int timersInUse;
std::time_t previousTime;
};
extern TimerSet theTimerSet;
#endif
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+29
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@@ -0,0 +1,29 @@
#include "Keyboard.h"
#include "Pelican.h"
#include "TimerSet.h"
#include <cctype> // provides toupper()
int main() {
Keyboard kbd;
Pelican thePelican(30, 0);
char c = 0;
while (std::toupper(c) != 'Q') { // loop until 'Q' is pressed
while (!kbd.isCharAvail()) {
theTimerSet.pollAllTimers(); // no key press to process, poll the timers
}
c = kbd.getChar(); // get the character
if (c == ' ') {
// it's a space, so press the WAIT button
thePelican.press();
}
}
return 0;
}
+2
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@@ -0,0 +1,2 @@
BASEOBJS = \
Light.o main.o Pelican.o PelicanTimer.o Pole.o Timer.o TimerSet.o
+17
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@@ -0,0 +1,17 @@
COMPILER = gcc
FLAGS =
INCLUDES = -I/usr/local/include/c++/3.4.2 -I../DOS_Unix
ARCHIVES = -L/usr/local/lib/gcc/sparc-sun-solaris2.7/3.4.2 -L/usr/local/lib -L/usr/lib
UNIX_OBJS = ../DOS_Unix/CursesObj.o ../DOS_Unix/Keyboard_Unix.o ../DOS_Unix/Screen_Unix.o
include make.mk
.SUFFIXES: .cpp .o
all: pelican
.cpp.o:
$(COMPILER) $(INCLUDES) -frepo -c $(FLAGS) $*.cpp
pelican : $(BASEOBJS)
$(COMPILER) $(ARCHIVES) -o pelican -lcurses $(BASEOBJS) $(UNIX_OBJS) -lcurses -lstdc++ -static
+20
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@@ -0,0 +1,20 @@
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio 2013
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MinimumVisualStudioVersion = 10.0.40219.1
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Ex11", "Ex11.vcxproj", "{E1F2BA40-B169-8D69-78E1-868C8A785A9C}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Win32 = Debug|Win32
Release|Win32 = Release|Win32
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{E1F2BA40-B169-8D69-78E1-868C8A785A9C}.Debug|Win32.ActiveCfg = Debug|Win32
{E1F2BA40-B169-8D69-78E1-868C8A785A9C}.Debug|Win32.Build.0 = Debug|Win32
{E1F2BA40-B169-8D69-78E1-868C8A785A9C}.Release|Win32.ActiveCfg = Release|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal
Binary file not shown.
+185
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@@ -0,0 +1,185 @@
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+141
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@@ -0,0 +1,141 @@
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+22
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@@ -0,0 +1,22 @@
#include "Light.h"
#include "CursesObj.h"
#include "Pelican.h"
#include "Screen.h"
#include <iostream>
Light::Light(std::string name, int x, int y, int color) : x(x), y(y), c(color), name(name) {}
Light::~Light() {
std::cout << "Deleting light (" << name << ", " << x << ", " << y << ", " << c << ")" << std::endl;
std::cout.flush();
}
void Light::set(LightState newState) {
state = newState;
Screen::write(name.c_str(), x, y, state == FLASH ? (128 + c) : (state == OFF ? 0 : c));
// 128 + color was used to make a character flash (but not any more)
}
Light::LightState Light::get(void) { return state; }
+30
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@@ -0,0 +1,30 @@
// ======================================================
//
// Represents a light, implemented as a string written
// to a console window
//
// ======================================================
#ifndef LIGHT_H
#define LIGHT_H
#include <string>
class Light {
public:
Light(std::string name, int x, int y, int color);
~Light();
enum LightState { ON, OFF, FLASH };
void set(LightState new_state);
LightState get(void);
private:
int c; // light colour
int x, y;
std::string name;
LightState state;
};
#endif
+66
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@@ -0,0 +1,66 @@
#include "Pelican.h"
#include "PelicanTimer.h"
#include "Pole.h"
Pelican::Pelican(int x, int y)
: pressed(false), RED_TIME(4), YELLOW_TIME(2), GREEN_TIME(3), FLASH_TIME(5), myPole(new Pole(x, y)),
state(GREEN_IDLE) {
myTimer = new PelicanTimer(*this, &Pelican::timerExpired);
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed() ? Light::ON : Light::OFF);
}
Pelican::~Pelican() { delete myPole; }
void Pelican::press(void) {
if (state == GREEN_IDLE) {
state = YELLOW_STATE;
myTimer->timeoutRequest(YELLOW_TIME);
pressed = true;
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed() ? Light::ON : Light::OFF);
} else if (state != RED_STATE) {
pressed = true;
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed() ? Light::ON : Light::OFF);
}
}
void Pelican::timerExpired(void) {
switch (state) {
case RED_STATE:
state = YELLOW_FLASHING;
myTimer->timeoutRequest(FLASH_TIME);
break;
case YELLOW_FLASHING:
state = GREEN_TIMING;
myTimer->timeoutRequest(GREEN_TIME);
break;
case GREEN_TIMING:
if (pressed) {
state = YELLOW_STATE;
myTimer->timeoutRequest(YELLOW_TIME);
} else {
state = GREEN_IDLE;
}
break;
case GREEN_IDLE:
// should never happen
break;
case YELLOW_STATE:
state = RED_STATE;
pressed = false;
myTimer->timeoutRequest(RED_TIME);
break;
}
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed() ? Light::ON : Light::OFF);
}
+53
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// ======================================================
//
// Represents a Pelican crossing
//
// ======================================================
#ifndef PELICAN_H
#define PELICAN_H
class PelicanTimer;
class Pole;
class Pelican {
public:
Pelican(int x, int y);
~Pelican();
// call when the WAIT button has been pressed
void press(void);
// states that a Pelican can be in
enum PelicanState { RED_STATE, YELLOW_FLASHING, GREEN_TIMING, GREEN_IDLE, YELLOW_STATE };
bool isPressed() const { return pressed; }
PelicanState getState() const { return state; }
private:
// state that this Pelican is in
PelicanState state;
// called by PeleicanTimer when the lights need to change
void timerExpired(void);
const unsigned int RED_TIME;
const unsigned int YELLOW_TIME;
const unsigned int GREEN_TIME;
const unsigned int FLASH_TIME;
// indicates whether the WAIT light should be on
bool pressed;
Pole *myPole;
// Timer that indicates when the lights should change
PelicanTimer *myTimer;
private:
// prevent general use of copy ctor and operator=
Pelican(const Pelican &);
Pelican &operator=(const Pelican &);
};
#endif
+11
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#include "PelicanTimer.h"
PelicanTimer::PelicanTimer(Pelican &target, TargetFunc targetFunc) : myTarget(target), myTargetFunc(targetFunc) {}
void PelicanTimer::tick() {
if (isExpired()) {
(myTarget.*myTargetFunc)();
}
}
+27
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@@ -0,0 +1,27 @@
// ======================================================
//
// This class specializes the Timer to enable it to
// stimulate a Pelican
//
// ======================================================
#ifndef PELICANTIMER_H
#define PELICANTIMER_H
#include "Pelican.h"
#include "Timer.h"
class PelicanTimer : public Timer {
public:
typedef void (Pelican::*TargetFunc)();
PelicanTimer(Pelican &target, TargetFunc targetFunc);
virtual void tick();
private:
Pelican &myTarget;
TargetFunc myTargetFunc;
};
#endif
+59
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#include "Pole.h"
#include "Screen.h"
Pole::Pole(int x, int y) : waitLight(new Light("WAIT", x + 6, y + 12, Screen::WHITE)) {
using namespace Screen; // we will discuss namespaces in the course
lights[RED_LIGHT] = new Light("*", x + 11, y + 3, RED);
lights[RED_MAN] = new Light("*<-=", x + 6, y + 4, RED);
lights[YELLOW_LIGHT] = new Light("*", x + 11, y + 5, YELLOW);
lights[GREEN_LIGHT] = new Light("*", x + 11, y + 7, GREEN);
lights[GREEN_MAN] = new Light("*|-<", x + 6, y + 7, GREEN);
write(" _____ ", x, ++y, GRAY);
write(" /___ /| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" | |/| ", x, ++y, GRAY);
write(" |____| | ", x, ++y, GRAY);
write(" | |/| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" |____|/ ", x, ++y, GRAY);
write(" _||__ ", x, ++y, GRAY);
write(" /___ /| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" |____|/ ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write("========||===========", x, ++y, GRAY);
write(" / || / ", x, ++y, GRAY);
write("_ /_________ /_ ", x, ++y, GRAY);
write("/ / ", x, ++y, GRAY);
}
Pole::~Pole() {
for (int i = 0; i < sizeof lights / sizeof(lights[0]); ++i)
delete lights[i];
delete waitLight;
}
void Pole::setTrafficLights(Pelican::PelicanState state) {
static const Light::LightState LightStates[Pelican::YELLOW_STATE + 1][RED_MAN + 1] = {
// red yellow green green man red man
{Light::ON, Light::OFF, Light::OFF, Light::ON, Light::OFF}, // red
{Light::OFF, Light::FLASH, Light::OFF, Light::FLASH, Light::OFF}, // y flash
{Light::OFF, Light::OFF, Light::ON, Light::OFF, Light::ON}, // g time
{Light::OFF, Light::OFF, Light::ON, Light::OFF, Light::ON}, // g idle
{Light::OFF, Light::ON, Light::OFF, Light::OFF, Light::ON} // yellow
};
for (int i = RED_LIGHT; i <= RED_MAN; i++) {
lights[i]->set(LightStates[state][i]);
}
}
void Pole::setWaitLight(bool pressed) { waitLight->set(pressed ? Light::ON : Light::OFF); }
+17
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#include "Timer.h"
#include "TimerSet.h"
void Timer::timeoutRequest(int seconds) { timeToGo = seconds; }
Timer::Timer() : timeToGo(-1) { theTimerSet.addATimer(this); }
bool Timer::isExpired() {
if (timeToGo > 0) {
if (--timeToGo == 0) {
return true;
}
}
return false;
}
+27
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@@ -0,0 +1,27 @@
// ======================================================
//
// A general-purpose countdown timer
// To use this class, specialize it
// and override tick()
//
// ======================================================
#ifndef TIMER_H
#define TIMER_H
class Timer {
public:
Timer();
void timeoutRequest(int seconds);
virtual void tick() = 0;
protected:
bool isExpired();
private:
int timeToGo;
};
#endif
+24
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@@ -0,0 +1,24 @@
#include "TimerSet.h"
#include "Timer.h"
TimerSet theTimerSet;
TimerSet::TimerSet() : timersInUse(0), previousTime(time(&previousTime)) {}
void TimerSet::addATimer(Timer *t) { timers[timersInUse++] = t; }
void TimerSet::pollAllTimers() {
std::time_t timeNow;
if (time(&timeNow) > previousTime) {
previousTime = timeNow;
for (int i = 0; i < timersInUse; ++i) {
timers[i]->tick();
}
}
}
+23
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@@ -0,0 +1,23 @@
#ifndef TIMERSET_H
#define TIMERSET_H
#include <ctime>
class Timer;
class TimerSet {
public:
TimerSet();
void pollAllTimers();
void addATimer(Timer *);
private:
Timer *timers[40];
int timersInUse;
std::time_t previousTime;
};
extern TimerSet theTimerSet;
#endif
+29
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@@ -0,0 +1,29 @@
#include "Keyboard.h"
#include "Pelican.h"
#include "TimerSet.h"
#include <cctype> // provides toupper()
int main() {
Keyboard kbd;
Pelican thePelican(30, 0);
char c = 0;
while (std::toupper(c) != 'Q') { // loop until 'Q' is pressed
while (!kbd.isCharAvail()) {
theTimerSet.pollAllTimers(); // no key press to process, poll the timers
}
c = kbd.getChar(); // get the character
if (c == ' ') {
// it's a space, so press the WAIT button
thePelican.press();
}
}
return 0;
}
+2
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@@ -0,0 +1,2 @@
BASEOBJS = \
Light.o main.o Pelican.o PelicanTimer.o Pole.o Timer.o TimerSet.o
+17
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@@ -0,0 +1,17 @@
COMPILER = gcc
FLAGS =
INCLUDES = -I/usr/local/include/c++/3.4.2 -I../DOS_Unix
ARCHIVES = -L/usr/local/lib/gcc/sparc-sun-solaris2.7/3.4.2 -L/usr/local/lib -L/usr/lib
UNIX_OBJS = ../DOS_Unix/CursesObj.o ../DOS_Unix/Keyboard_Unix.o ../DOS_Unix/Screen_Unix.o
include make.mk
.SUFFIXES: .cpp .o
all: pelican
.cpp.o:
$(COMPILER) $(INCLUDES) -frepo -c $(FLAGS) $*.cpp
pelican : $(BASEOBJS)
$(COMPILER) $(ARCHIVES) -o pelican -lcurses $(BASEOBJS) $(UNIX_OBJS) -lcurses -lstdc++ -static
+23
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@@ -0,0 +1,23 @@
#ifndef POLE_H
#define POLE_H
#include "Light.h"
#include "Pelican.h"
class Pole {
public:
Pole(int x, int y);
~Pole();
void setTrafficLights(Pelican::PelicanState state);
void setWaitLight(bool pressed);
private:
enum LightName { RED_LIGHT, YELLOW_LIGHT, GREEN_LIGHT, GREEN_MAN, RED_MAN };
Light *lights[RED_MAN + 1];
Light *waitLight;
};
#endif
+20
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@@ -0,0 +1,20 @@
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EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Win32 = Debug|Win32
Release|Win32 = Release|Win32
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{AC7B29B3-9F42-7C36-686F-2F829309B86D}.Debug|Win32.ActiveCfg = Debug|Win32
{AC7B29B3-9F42-7C36-686F-2F829309B86D}.Debug|Win32.Build.0 = Debug|Win32
{AC7B29B3-9F42-7C36-686F-2F829309B86D}.Release|Win32.ActiveCfg = Release|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal
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+185
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@@ -0,0 +1,185 @@
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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
</Project>
+19
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#include "Light.h"
#include "Pelican.h"
#include "Screen.h"
#include <iostream>
Light::Light(std::string name, int x, int y, int color) : x(x), y(y), c(color), name(name) {}
Light::~Light() {
std::cout << "Deleting light (" << name << ", " << x << ", " << y << ", " << c << ")"
<< "\n";
}
void Light::set(LightState newState) {
state = newState;
Screen::write(name.c_str(), x, y, state == FLASH ? (128 + c) : (state == OFF ? 0 : c));
// 128 + color was used to make a character flash (but not any more)
}
Light::LightState Light::get(void) { return state; }
+30
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// ======================================================
//
// Represents a light, implemented as a string written
// to a console window
//
// ======================================================
#ifndef LIGHT_H
#define LIGHT_H
#include <string>
class Light {
public:
Light(std::string name, int x, int y, int color);
~Light();
enum LightState { ON, OFF, FLASH };
void set(LightState new_state);
LightState get(void);
private:
int c; // light colour
int x, y;
std::string name;
LightState state;
};
#endif
+31
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#include "Keyboard.h"
#include "Pelican.h"
#include "TimerSet.h"
#include <cctype> // provides toupper()
static TimerSet theTimerSet;
int main() {
Keyboard kbd;
Pelican thePelican(30, 0);
char c = 0;
while (std::toupper(c) != 'Q') { // loop until 'Q' is pressed
while (!kbd.isCharAvail()) {
theTimerSet.pollAllTimers(); // no key press to process, poll the timers
}
c = kbd.getChar(); // get the character
if (c == ' ') {
// it's a space, so press the WAIT button
thePelican.press();
}
}
return 0;
}
+65
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#include "Pelican.h"
#include "PelicanTimer.h"
#include "Pole.h"
Pelican::Pelican(int x, int y)
: pressed(false), RED_TIME(4), YELLOW_TIME(2), GREEN_TIME(3), FLASH_TIME(5), myPole(new Pole(x, y)),
state(GREEN_IDLE) {
myTimer = new PelicanTimer(*this, &Pelican::timerExpired);
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
}
Pelican::~Pelican() { delete myPole; }
void Pelican::press(void) {
if (state == GREEN_IDLE) {
state = YELLOW_STATE;
myTimer->timeoutRequest(YELLOW_TIME);
pressed = true;
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
} else if (state != RED_STATE) {
pressed = true;
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
}
}
void Pelican::timerExpired(void) {
switch (state) {
case RED_STATE:
state = YELLOW_FLASHING;
myTimer->timeoutRequest(FLASH_TIME);
break;
case YELLOW_FLASHING:
state = GREEN_TIMING;
myTimer->timeoutRequest(GREEN_TIME);
break;
case GREEN_TIMING:
if (pressed) {
state = YELLOW_STATE;
myTimer->timeoutRequest(YELLOW_TIME);
} else {
state = GREEN_IDLE;
}
break;
case GREEN_IDLE:
// should never happen
break;
case YELLOW_STATE:
state = RED_STATE;
pressed = false;
myTimer->timeoutRequest(RED_TIME);
break;
}
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
}
+53
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// ======================================================
//
// Represents a Pelican crossing
//
// ======================================================
#ifndef PELICAN_H
#define PELICAN_H
class PelicanTimer;
class Pole;
class Pelican {
public:
Pelican(int x, int y);
~Pelican();
// call when the WAIT button has been pressed
void press(void);
// states that a Pelican can be in
enum PelicanState { RED_STATE, YELLOW_FLASHING, GREEN_TIMING, GREEN_IDLE, YELLOW_STATE };
bool isPressed() const { return pressed; }
PelicanState getState() const { return state; }
private:
// state that this Pelican is in
PelicanState state;
// called by PeleicanTimer when the lights need to change
void timerExpired(void);
const unsigned int RED_TIME;
const unsigned int YELLOW_TIME;
const unsigned int GREEN_TIME;
const unsigned int FLASH_TIME;
// indicates whether the WAIT light should be on
bool pressed;
Pole *myPole;
// Timer that indicates when the lights should change
PelicanTimer *myTimer;
private:
// prevent general use of copy ctor and operator=
Pelican(const Pelican &);
Pelican &operator=(const Pelican &);
};
#endif
+10
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#include "PelicanTimer.h"
PelicanTimer::PelicanTimer(Pelican &target, TargetFunc targetFunc) : myTarget(target), myTargetFunc(targetFunc) {}
void PelicanTimer::tick() {
if (isExpired()) {
(myTarget.*myTargetFunc)();
}
}
+31
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// ======================================================
//
// This class specializes the Timer to enable it to
// stimulate a Pelican
//
// ======================================================
#ifndef PELICANTIMER_H
#define PELICANTIMER_H
#include "Pelican.h"
#include "Timer.h"
class PelicanTimer : public Timer {
public:
typedef void (Pelican::*TargetFunc)();
PelicanTimer(Pelican &target, TargetFunc targetFunc);
// TODO: Remove this function
virtual void tick();
// TODO: Add override of virtual function Timer::doExpired
// (this is the "primitive step" of the template method pattern)
private:
Pelican &myTarget;
TargetFunc myTargetFunc;
};
#endif
+59
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#include "Pole.h"
#include "Screen.h"
Pole::Pole(int x, int y) : waitLight(new Light("WAIT", x + 6, y + 12, Screen::WHITE)) {
using namespace Screen;
lights[RED_LIGHT] = new Light("*", x + 11, y + 3, RED);
lights[RED_MAN] = new Light("*<-=", x + 6, y + 4, RED);
lights[YELLOW_LIGHT] = new Light("*", x + 11, y + 5, YELLOW);
lights[GREEN_LIGHT] = new Light("*", x + 11, y + 7, GREEN);
lights[GREEN_MAN] = new Light("*|-<", x + 6, y + 7, GREEN);
write(" _____ ", x, ++y, GRAY);
write(" /___ /| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" | |/| ", x, ++y, GRAY);
write(" |____| | ", x, ++y, GRAY);
write(" | |/| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" |____|/ ", x, ++y, GRAY);
write(" _||__ ", x, ++y, GRAY);
write(" /___ /| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" |____|/ ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write("========||===========", x, ++y, GRAY);
write(" / || / ", x, ++y, GRAY);
write("_ /_________ /_ ", x, ++y, GRAY);
write("/ / ", x, ++y, GRAY);
}
Pole::~Pole() {
for (int i = 0; i < sizeof lights / sizeof(lights[0]); ++i)
delete lights[i];
delete waitLight;
}
void Pole::setTrafficLights(Pelican::PelicanState state) {
static const Light::LightState LightStates[Pelican::YELLOW_STATE + 1][RED_MAN + 1] = {
// red yellow green green man red man
{Light::ON, Light::OFF, Light::OFF, Light::ON, Light::OFF}, // red
{Light::OFF, Light::FLASH, Light::OFF, Light::FLASH, Light::OFF}, // y flash
{Light::OFF, Light::OFF, Light::ON, Light::OFF, Light::ON}, // g time
{Light::OFF, Light::OFF, Light::ON, Light::OFF, Light::ON}, // g idle
{Light::OFF, Light::ON, Light::OFF, Light::OFF, Light::ON} // yellow
};
for (int i = RED_LIGHT; i <= RED_MAN; i++) {
lights[i]->set(LightStates[state][i]);
}
}
void Pole::setWaitLight(bool pressed) { waitLight->set(pressed ? Light::ON : Light::OFF); }
+23
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#ifndef POLE_H
#define POLE_H
#include "Light.h"
#include "Pelican.h"
class Pole {
public:
Pole(int x, int y);
~Pole();
void setTrafficLights(Pelican::PelicanState state);
void setWaitLight(bool pressed);
private:
enum LightName { RED_LIGHT, YELLOW_LIGHT, GREEN_LIGHT, GREEN_MAN, RED_MAN };
Light *lights[RED_MAN + 1];
Light *waitLight;
};
#endif
+18
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#include "Timer.h"
#include "TimerSet.h"
static TimerSet theTimerSet;
void Timer::timeoutRequest(int seconds) { timeToGo = seconds; }
Timer::Timer() : timeToGo(-1) { theTimerSet.addATimer(this); }
bool Timer::isExpired() {
if (timeToGo > 0) {
if (--timeToGo == 0) {
return true;
}
}
return false;
}
+27
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@@ -0,0 +1,27 @@
// ======================================================
//
// A general-purpose countdown timer
// To use this class, specialize it
// and override tick()
//
// ======================================================
#ifndef TIMER_H
#define TIMER_H
class Timer {
public:
Timer();
void timeoutRequest(int seconds);
virtual void tick() = 0;
protected:
bool isExpired();
private:
int timeToGo;
};
#endif
+22
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@@ -0,0 +1,22 @@
// TODO: Add Singleton code
#include "TimerSet.h"
#include "Timer.h"
TimerSet::TimerSet() : timersInUse(0), previousTime(time(&previousTime)) {}
void TimerSet::addATimer(Timer *t) { timers[timersInUse++] = t; }
void TimerSet::pollAllTimers() {
std::time_t timeNow;
if (time(&timeNow) > previousTime) {
previousTime = timeNow;
for (int i = 0; i < timersInUse; ++i) {
timers[i]->tick();
}
}
}
+23
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@@ -0,0 +1,23 @@
#ifndef TIMERSET_H
#define TIMERSET_H
#include <ctime>
class Timer;
class TimerSet {
public:
TimerSet();
void pollAllTimers();
void addATimer(Timer *);
private:
Timer *timers[40];
int timersInUse;
std::time_t previousTime;
};
extern TimerSet theTimerSet;
#endif
+20
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@@ -0,0 +1,20 @@
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Debug|Win32 = Debug|Win32
Release|Win32 = Release|Win32
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+3
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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
</Project>
+21
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#include "Light.h"
#include "Pelican.h"
#include "Screen.h"
#include <iostream>
Light::Light(std::string name, int x, int y, int color) : x(x), y(y), c(color), name(name) {}
Light::~Light() {
std::cout << "Deleting light (" << name << ", " << x << ", " << y << ", " << c << ")"
<< "\n";
}
void Light::set(LightState newState) {
state = newState;
Screen::write(name.c_str(), x, y, state == FLASH ? (128 + c) : (state == OFF ? 0 : c));
// 128 + color was used to make a character flash (but not any more)
}
Light::LightState Light::get(void) { return state; }
+30
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// ======================================================
//
// Represents a light, implemented as a string written
// to a console window
//
// ======================================================
#ifndef LIGHT_H
#define LIGHT_H
#include <string>
class Light {
public:
Light(std::string name, int x, int y, int color);
~Light();
enum LightState { ON, OFF, FLASH };
void set(LightState new_state);
LightState get(void);
private:
int c; // light colour
int x, y;
std::string name;
LightState state;
};
#endif
+66
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#include "Pelican.h"
#include "PelicanTimer.h"
#include "Pole.h"
Pelican::Pelican(int x, int y)
: pressed(false), RED_TIME(4), YELLOW_TIME(2), GREEN_TIME(3), FLASH_TIME(5), myPole(new Pole(x, y)),
state(GREEN_IDLE) {
myTimer = new PelicanTimer(*this, &Pelican::timerExpired);
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
}
Pelican::~Pelican() { delete myPole; }
void Pelican::press(void) {
if (state == GREEN_IDLE) {
state = YELLOW_STATE;
myTimer->timeoutRequest(YELLOW_TIME);
pressed = true;
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
} else if (state != RED_STATE) {
pressed = true;
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
}
}
void Pelican::timerExpired(void) {
switch (state) {
case RED_STATE:
state = YELLOW_FLASHING;
myTimer->timeoutRequest(FLASH_TIME);
break;
case YELLOW_FLASHING:
state = GREEN_TIMING;
myTimer->timeoutRequest(GREEN_TIME);
break;
case GREEN_TIMING:
if (pressed) {
state = YELLOW_STATE;
myTimer->timeoutRequest(YELLOW_TIME);
} else {
state = GREEN_IDLE;
}
break;
case GREEN_IDLE:
// should never happen
break;
case YELLOW_STATE:
state = RED_STATE;
pressed = false;
myTimer->timeoutRequest(RED_TIME);
break;
}
myPole->setTrafficLights(getState());
myPole->setWaitLight(isPressed());
}
+53
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// ======================================================
//
// Represents a Pelican crossing
//
// ======================================================
#ifndef PELICAN_H
#define PELICAN_H
class PelicanTimer;
class Pole;
class Pelican {
public:
Pelican(int x, int y);
~Pelican();
// call when the WAIT button has been pressed
void press(void);
// states that a Pelican can be in
enum PelicanState { RED_STATE, YELLOW_FLASHING, GREEN_TIMING, GREEN_IDLE, YELLOW_STATE };
bool isPressed() const { return pressed; }
PelicanState getState() const { return state; }
private:
// state that this Pelican is in
PelicanState state;
// called by PeleicanTimer when the lights need to change
void timerExpired(void);
const unsigned int RED_TIME;
const unsigned int YELLOW_TIME;
const unsigned int GREEN_TIME;
const unsigned int FLASH_TIME;
// indicates whether the WAIT light should be on
bool pressed;
Pole *myPole;
// Timer that indicates when the lights should change
PelicanTimer *myTimer;
private:
// prevent general use of copy ctor and operator=
Pelican(const Pelican &);
Pelican &operator=(const Pelican &);
};
#endif
+11
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#include "PelicanTimer.h"
PelicanTimer::PelicanTimer(Pelican &target, TargetFunc targetFunc) : myTarget(target), myTargetFunc(targetFunc) {}
void PelicanTimer::tick() {
if (isExpired()) {
(myTarget.*myTargetFunc)();
}
}
+28
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// ======================================================
//
// This class specializes the Timer to enable it to
// stimulate a Pelican
//
// ======================================================
#ifndef PELICANTIMER_H
#define PELICANTIMER_H
#include "Pelican.h"
#include "Timer.h"
class PelicanTimer : public Timer {
public:
typedef void (Pelican::*TargetFunc)();
PelicanTimer(Pelican &target, TargetFunc targetFunc);
// TODO: Rename this function to doExpired. The parameters and return type are unchanged.
virtual void tick();
private:
Pelican &myTarget;
TargetFunc myTargetFunc;
};
#endif
+59
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#include "Pole.h"
#include "Screen.h"
Pole::Pole(int x, int y) : waitLight(new Light("WAIT", x + 6, y + 12, Screen::WHITE)) {
using namespace Screen; // we will discuss namespaces in the course
lights[RED_LIGHT] = new Light("*", x + 11, y + 3, RED);
lights[RED_MAN] = new Light("*<-=", x + 6, y + 4, RED);
lights[YELLOW_LIGHT] = new Light("*", x + 11, y + 5, YELLOW);
lights[GREEN_LIGHT] = new Light("*", x + 11, y + 7, GREEN);
lights[GREEN_MAN] = new Light("*|-<", x + 6, y + 7, GREEN);
write(" _____ ", x, ++y, GRAY);
write(" /___ /| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" | |/| ", x, ++y, GRAY);
write(" |____| | ", x, ++y, GRAY);
write(" | |/| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" |____|/ ", x, ++y, GRAY);
write(" _||__ ", x, ++y, GRAY);
write(" /___ /| ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" | | | ", x, ++y, GRAY);
write(" |____|/ ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write(" || ", x, ++y, GRAY);
write("========||===========", x, ++y, GRAY);
write(" / || / ", x, ++y, GRAY);
write("_ /_________ /_ ", x, ++y, GRAY);
write("/ / ", x, ++y, GRAY);
}
Pole::~Pole() {
for (int i = 0; i < sizeof lights / sizeof(lights[0]); ++i)
delete lights[i];
delete waitLight;
}
void Pole::setTrafficLights(Pelican::PelicanState state) {
static const Light::LightState LightStates[Pelican::YELLOW_STATE + 1][RED_MAN + 1] = {
// red yellow green green man red man
{Light::ON, Light::OFF, Light::OFF, Light::ON, Light::OFF}, // red
{Light::OFF, Light::FLASH, Light::OFF, Light::FLASH, Light::OFF}, // y flash
{Light::OFF, Light::OFF, Light::ON, Light::OFF, Light::ON}, // g time
{Light::OFF, Light::OFF, Light::ON, Light::OFF, Light::ON}, // g idle
{Light::OFF, Light::ON, Light::OFF, Light::OFF, Light::ON} // yellow
};
for (int i = RED_LIGHT; i <= RED_MAN; i++) {
lights[i]->set(LightStates[state][i]);
}
}
void Pole::setWaitLight(bool pressed) { waitLight->set(pressed ? Light::ON : Light::OFF); }
+24
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#ifndef POLE_H
#define POLE_H
#include "Light.h"
#include "Pelican.h"
class Pole {
public:
Pole(int x, int y);
~Pole();
void setTrafficLights(Pelican::PelicanState state);
void setWaitLight(bool pressed);
private:
enum LightName { RED_LIGHT, YELLOW_LIGHT, GREEN_LIGHT, GREEN_MAN, RED_MAN };
Light *lights[RED_MAN + 1];
Light *waitLight;
};
#endif
+17
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#include "Timer.h"
#include "TimerSet.h"
void Timer::timeoutRequest(int seconds) { timeToGo = seconds; }
Timer::Timer() : timeToGo(-1) { TimerSet::Instance().addATimer(this); }
bool Timer::isExpired() {
if (timeToGo > 0) {
if (--timeToGo == 0) {
return true;
}
}
return false;
}
+27
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@@ -0,0 +1,27 @@
// ======================================================
//
// A general-purpose countdown timer
// To use this class, specialize it
// and override tick()
//
// ======================================================
#ifndef timer_H
#define timer_H
class Timer {
public:
Timer();
void timeoutRequest(int seconds);
virtual void tick() = 0;
protected:
bool isExpired();
private:
int timeToGo;
};
#endif
+23
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#include "TimerSet.h"
#include "Timer.h"
#include <iostream>
TimerSet::TimerSet() : timersInUse(0), previousTime(time(NULL)) {}
void TimerSet::addATimer(Timer *t) { timers[timersInUse++] = t; }
void TimerSet::pollAllTimers() {
std::time_t timeNow;
if (time(&timeNow) > previousTime) {
previousTime = timeNow;
for (int i = 0; i < timersInUse; ++i) {
timers[i]->tick();
}
}
}
TimerSet &TimerSet::Instance() {
// Meyer's Singleton implementation
static TimerSet pInstance;
return pInstance;
}
+29
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@@ -0,0 +1,29 @@
#ifndef TIMERSET_H
#define TIMERSET_H
#include <ctime>
class Timer;
class TimerSet {
public:
void pollAllTimers();
void addATimer(Timer *);
private:
TimerSet();
Timer *timers[40];
int timersInUse;
std::time_t previousTime;
// Meyer's singleton
public:
static TimerSet &Instance();
private:
// prevent copying and assignment of the singleton
TimerSet(const TimerSet &);
TimerSet &operator=(const TimerSet &);
};
#endif
+29
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@@ -0,0 +1,29 @@
#include "Keyboard.h"
#include "Pelican.h"
#include "TimerSet.h"
#include <cctype> // provides toupper()
int main() {
Keyboard kbd;
Pelican thePelican(30, 0);
char c = 0;
while (std::toupper(c) != 'Q') { // loop until 'Q' is pressed
while (!kbd.isCharAvail()) {
TimerSet::Instance().pollAllTimers(); // no key press to process, poll the timers
}
c = kbd.getChar(); // get the character
if (c == ' ') {
// it's a space, so press the WAIT button
thePelican.press();
}
}
return 0;
}
Binary file not shown.
+20
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@@ -0,0 +1,20 @@
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BIN
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+136
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+126
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+23
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@@ -0,0 +1,23 @@
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+10
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@@ -0,0 +1,10 @@
#include "Pixel.h"
#include <iostream>
int main() {
// insert code here ***************************************
return 0;
}
+22
View File
@@ -0,0 +1,22 @@
#ifndef Pixel_h
#define Pixel_h
#include <iostream>
class Pixel {
public:
Pixel(int x = 0, int y = 0) : x(x), y(y) {}
void print() const { std::cout << '(' << x << "," << y << ") "; }
bool operator<(const Pixel &rhs) const { return x < rhs.x; }
bool operator==(const Pixel &rhs) const { return x == rhs.x; }
private:
int x;
int y;
};
#endif
+20
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@@ -0,0 +1,20 @@
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{F5DDDD69-0B34-7FD5-AEAF-1BA6CC4705A1}.Debug|Win32.ActiveCfg = Debug|Win32
{F5DDDD69-0B34-7FD5-AEAF-1BA6CC4705A1}.Debug|Win32.Build.0 = Debug|Win32
{F5DDDD69-0B34-7FD5-AEAF-1BA6CC4705A1}.Release|Win32.ActiveCfg = Release|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

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