#include "ofConwaysGameOfLife.h"
//--------------------------------------------------------------
void ofConwaysGameOfLife::setup(){
ofSetFrameRate(3);
ofSetWindowShape(w, h);
canvas.allocate(w, h, OF_IMAGE_GRAYSCALE);
rPentomino();
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::update(){
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::draw(){
canvas.draw(0, 0);
if (!paused) {
ofPixels pixels = canvas.getPixels();
for (int x = 0; x < canvas.getWidth(); x += l) {
for (int y = 0; y < canvas.getHeight(); y += l) {
int numAliveNeighbors = countNumAliveNeighbors(x, y);
if (isAlive(x, y) && (numAliveNeighbors < 2 ||
numAliveNeighbors > 3)) {
ofColor color = ofColor(0);
drawCell(x, y, pixels, color);
continue;
}
if (!isAlive(x, y) && (numAliveNeighbors == 3)) {
ofColor color = ofColor(255);
drawCell(x, y, pixels, color);
}
}
}
canvas.setFromPixels(pixels);
}
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::exit(){
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::keyPressed(int key){
if (key == 'p') {
paused = !paused;
}
if (key == 'r') {
random();
}
if (key == 'l') {
setAllCells(true);
}
if (key == 'd') {
setAllCells(false);
}
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::keyReleased(int key){
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::mouseMoved(int x, int y ){
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::mouseDragged(int x, int y, int button){
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::mousePressed(int x, int y, int button){
ofPixels pixels = canvas.getPixels();
ofColor color = canvas.getColor(x, y);
ofColor new_color = (color == ofColor(255)) ? ofColor(0) : ofColor(255);
drawCell((x / l) * l, (y / l) * l, pixels, new_color);
canvas.setFromPixels(pixels);
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::mouseReleased(int x, int y, int button){
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::mouseScrolled(int x, int y, float scrollX, float scrollY){
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::mouseEntered(int x, int y){
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::mouseExited(int x, int y){
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::windowResized(int w, int h){
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::gotMessage(ofMessage msg){
}
//--------------------------------------------------------------
void ofConwaysGameOfLife::dragEvent(ofDragInfo dragInfo){
}
void ofConwaysGameOfLife::setAllCells(bool isAlive) {
ofPixels pixels = canvas.getPixels();
ofColor color = isAlive ? ofColor(255) : ofColor(0);
for (int x = 0; x < canvas.getWidth(); x++) {
for (int y = 0; y < canvas.getHeight(); y++) {
pixels.setColor(x, y, color);
}
}
canvas.setFromPixels(pixels);
}
void ofConwaysGameOfLife::rPentomino() {
setAllCells(false);
ofPixels pixels = canvas.getPixels();
drawCell(190, 150, pixels, ofColor(255));
drawCell(200, 150, pixels, ofColor(255));
drawCell(180, 160, pixels, ofColor(255));
drawCell(190, 160, pixels, ofColor(255));
drawCell(190, 170, pixels, ofColor(255));
canvas.setFromPixels(pixels);
}
void ofConwaysGameOfLife::random() {
ofPixels pixels = canvas.getPixels();
for (int x = 0; x < canvas.getWidth(); x += l) {
for (int y = 0; y < canvas.getHeight(); y+= l) {
ofColor color = (ofRandomuf() < 0.5) ? ofColor(0) : ofColor(255);
drawCell(x, y, pixels, color);
}
}
canvas.setFromPixels(pixels);
}
void ofConwaysGameOfLife::drawCell(int x, int y, ofPixels& pixels, ofColor color) {
for (int i = x; i < x + l; i++) {
for (int j = y; j < y + l; j++) {
pixels.setColor(i, j, color);
}
}
}
int ofConwaysGameOfLife::isAlive(int x, int y) {
ofColor color = canvas.getColor(x, y);
if (x < 0 || x > canvas.getWidth() ||
y < 0 || y > canvas.getHeight()) {
return 0;
}
int i = (color == ofColor(255)) ? 1 : 0;
return i;
}
int ofConwaysGameOfLife::countNumAliveNeighbors(int x, int y) {
int n = 0;
for (int i = -1; i <= 1; i++) {
for (int j = -1; j <= 1; j++) {
if (i == 0 && j == 0) {
continue;
}
n += isAlive(x + i * l, y + j * l);
}
}
return n;
}
