Diff: main.cpp

Revision:

0:dc77cc9514ca

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jun 15 18:42:14 2016 +0000
@@ -0,0 +1,144 @@
+,
+#include "mbed.h"
+#include "N5110.h"
+
+//vcc,sce,rst,dc,mosi,clk,led
+N5110 lcd(p5,p6,p7,p8,p11,p13,p21); //pwm for led backlight
+DigitalIn myswitch(p19); //creates function for the digitalIn switch which enables the switch to display glider or pixels (connects to pin 19 on mbed)
+AnalogIn var(p17); // adds setting for using a potentiometer to adjust brightness of screen (connects to pin 16 on mbed)
+                     // var = object name 
+// note reset button should be pressed always when switch is flipped 
+
+// function declaration
+int cells[84][48]; // dimen
+int n=0;
+void namedisplay(); //calls function for name display on welcome screen
+void clearCells(); //clears all cells on screen
+void checkerBoard(); // checks that all the pixels are present on the screen
+void checkcells(); //it checks and counts the neighbours and applies the rules
+void updatecells(); // it updates the display for every generation
+void menuDisplay(); 
+
+
+
+void namedisplay()
+{
+    lcd.init();
+    lcd.setBrightness(var); // sets the brightness for screen 
+    lcd.printString("Welcome to" ,15,1); //inserts text for welcome on the first line hence the '1'
+    lcd.printString("Conway's",20,2); // prints the text in the brackets on the secondline hence '2'
+    lcd.printString("Game of Life",6,3); //prints text in the third line
+    lcd.printString(" Thokozile",0,5); // prints name in fifth line
+    wait(2); // delays for 2 seconds
+    lcd.refresh(); // refreshes screen displays checkerboard (all pixels on screen)
+    clearCells(); // clears screen removes cells
+    lcd.refresh(); // resets the screen
+}
+void clearCells()
+{
+    //loop through cells and clear
+    for (int i=0; i<84; i++) { // clears all the cells accross the screen horizontally
+        for (int j=0; j<48; j++) { // clears all cells down the screen vertically
+            lcd.clearPixel(i,j);
+        }
+    }
+    lcd.refresh();
+}
+void glider()
+{
+    lcd.setPixel(20,20); 
+    lcd.setPixel(21,20); 
+    lcd.setPixel(22,20);
+    lcd.setPixel(22,19);
+    lcd.setPixel(21,18);
+    
+    //sets pixels to allow glider to move down and up
+}
+void checkerBoard()
+{
+    //loop through every other cell and turn pixel on
+    for (int i=0; i<84; i+=2) { //loops through cells horizontally
+        for (int j=0; j<48; j+=2) { //loops through cells vertically
+            lcd.setPixel(i,j); //sets the pixels accordingly
+        }
+    }
+    lcd.refresh(); //must refresh to write buffer to display
+}
+
+void checkcells()
+{
+    for (int i=0; i<84; i++) { // checks for neighbours in x-direction
+        for (int j=0; j<48; j++) { // checks for neighbours in y-direction
+
+            int n=0; //number of neighbours
+
+            if(lcd.getPixel(i-1,j-1)) //pixel to top-left
+                n++;
+            if(lcd.getPixel(i-1,j)) //pixel to the left
+                n++;
+            if(lcd.getPixel(i-1,j+1)) //pixel to bottom left 
+                n++;
+            if(lcd.getPixel(i,j-1)) // pixel to top 
+                n++;
+            if(lcd.getPixel(i,j+1)) // pixel to bottom
+                n++;
+            if(lcd.getPixel(i+1,j-1)) // pixel to top-right
+                n++;
+            if(lcd.getPixel(i+1,j)) // pixel to right
+                n++;
+            if(lcd.getPixel(i+1,j+1)) // pixel to bottom-right
+                n++;
+
+            if (lcd.getPixel(i,j)) {  // if  cells are alive....
+                if (n==3 || n==2)  // if n is 3 or 2
+                    cells[i][j]=1; // switch cell on
+                else if (n<2 || n>3) // if n is less than 2 or 3
+                    cells[i][j]=0; // switch cell off
+            } else { // else if dead...
+                if (n==3)
+                    cells[i][j]=1; // keep cell on
+            }
+        }
+    }
+}
+
+void updatecells() // updates display for after checking neighbours
+{
+    lcd.setBrightness(var); // sets function to adjust brightness
+   
+    for(int i=0; i<84; i++) {  // updates for cells in x-direction
+        for(int j=0; j<48; j++) { // updates for y-direction
+
+            if(cells[i][j]==1) { //if cells are on
+                lcd.setPixel(i,j); //set the pixels accordingly
+            } else {
+                lcd.clearPixel(i,j); // clear pixels when off
+            }
+        }
+    }
+    lcd.refresh(); //reset
+}
+
+
+
+int main() // main function to call all functions
+{
+    lcd.init(); 
+    namedisplay();
+    checkerBoard();
+    wait(1.5);
+    clearCells();
+    wait(1.5);
+    if (myswitch==1) {  // function for switch on 
+        lcd.randomiseBuffer(); //randomise cells if swtich on
+    } else if (myswitch==0) { // display glider on 2 and pixels on switch 1
+
+        glider();
+    }
+    while(1) { // while loop
+        checkcells();
+        updatecells();
+        wait(0.3); // the rate at which cells degenerate
+        lcd.refresh();
+    }
+}