ELEC2645 (2015/16)
Snake Game
Fork of
ProjectSnake
by 
William Smith
Revision 2:3389133a2223, committed 2016-05-05
- Comitter:
- el14ws
- Date:
- Thu May 05 13:37:52 2016 +0000
- Parent:
- 1:44cc07feab7e
- Commit message:
- FINAL VERSION
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| main.h | Show annotated file Show diff for this revision Revisions of this file |
--- a/main.cpp Wed May 04 18:24:37 2016 +0000
+++ b/main.cpp Thu May 05 13:37:52 2016 +0000
@@ -1,139 +1,35 @@
-#include "mbed.h"
-#include "N5110.h"
-#define DIRECTION_TOLERANCE 0.05// change this to alter tolerance of joystick direction
-
-DigitalIn button(PTB11);// connections for joystick
-AnalogIn xPot(PTB2);
-AnalogIn yPot(PTB3);
-Ticker pollJoystick;// timer to regularly read the joystick
-// Serial for debug
-Serial serial(USBTX,USBRX);// Serial for debug
-// create enumerated type (0,1,2,3 etc. for direction)
-// could be extended for diagonals etc.
-enum DirectionName {
- UP,
- DOWN,
- LEFT,
- RIGHT,
- CENTRE,
- UNKNOWN
-};
-typedef struct JoyStick Joystick;// struct for Joystick
-struct JoyStick {
- float x; // current x value
- float x0; // 'centred' x value
- float y; // current y value
- float y0; // 'centred' y value
- int button; // button state (assume pull-down used, so 1 = pressed, 0 = unpressed)
- DirectionName direction; // current direction
-};
-Joystick joystick;// create struct variable
-int printFlag = 0;
-// VCC, SCE, RST, D/C, MOSI, SCLK, LED
-N5110 lcd( PTE26, PTA0, PTC4, PTD0, PTD2, PTD1, PTC3);
-DigitalIn buttonA(PTB18);
-int ni = 84;
-int x = 0;
-int x1 = 0;
-int x2 = 0;
-int x3 = 0;
-int x4 = 0;
-int x5 = 0;
-int x6 = 0;
-int x7 = 0;
-int x8 = 0;
-int x9 = 0;
-int x10 = 0;
-int x11 = 0;
-int x12 = 0;
-int x13 = 0;
-int x14 = 0;
-int x15 = 0;
-int x16 = 0;
-int x17 = 0;
-int x18 = 0;
-int x19 = 0;
-int x20 = 0;
-int x21 = 0;
-int x22 = 0;
-int x23 = 0;
-int x24 = 0;
-int y = 0;
-int y1 = 1;
-int y2 = 2;
-int y3 = 3;
-int y4 = 4;
-int y5 = 5;
-int y6 = 6;
-int y7 = 7;
-int y8 = 8;
-int y9 = 9;
-int y10 = 10;
-int y11 = 11;
-int y12 = 12;
-int y13 = 13;
-int y14 = 14;
-int y15 = 15;
-int y16 = 16;
-int y17 = 17;
-int y18 = 18;
-int y19 = 19;
-int y20 = 20;
-int y21 = 21;
-int y22 = 22;
-int y23 = 23;
-int y24 = 24;
-int change = 1;
-int n[84][48];
-int array[48][84];
-int nj = 48;
-int cells[84][48];
-int Score = 0;
-int randX;
-int randY;
-char str[64];
-int pause=0;
+/**@file main.cpp
+@brief C plus plus file containing functions prototypes,defines and global variables.
+@author William J Smith
+@date May 2016
+*/
-void Menu(); //Start screen
-void Welcomescreen(); //Prints Welcome to snake on screen
-void clearCells(); //Clears Screen
-void checkerBoard(); //produces checkers before game begins
-void DrawArray(); //Sets the pixel depending on whether 0 or higher than 1
-void ClearArray();//Checks over each individual pixel and if its 0 it will clear
-void GenerateFood();//Generates food at random places
-void MakeSnake(); //sets the pixels for the snake
-void SnakeGame(); // Game Rules
-void MoveSnake(); //moving the snake using the joy stick
-void calibrateJoystick();
-void updateJoystick();
-void SnakeGrowing();
-void GameOver();//Game ends
-void drawLine();
-void calibrateJoystick();
-void updateJoystick();
+#include "main.h"
int main()
{
- buttonA.mode(PullDown);
+ buttonA.mode(PullDown);//set to pull down mode to enable use of button on PCB
calibrateJoystick(); // get centred values of joystick
pollJoystick.attach(&updateJoystick,1.0/10.0); // read joystick 10 times per second
- calibrateJoystick();
- updateJoystick();
- lcd.init();
- Welcomescreen();
- lcd.clear();
- GenerateFood();
- DrawArray();
- Menu();
+ calibrateJoystick();//calibrate joystick prior to game beginning
+ updateJoystick();//update joystick to reduce bugs
+ lcd.init();//enables screen
+ Welcomescreen();//shows welcoming message when starting up
+ lcd.clear();//clears screen
+
+ GenerateFood();//Randomly generates food at the beginning of the game
+ DrawArray();//draws food array
+ Menu();//enables user to press start
while(1) {
- MakeSnake();
- ClearArray();
- DrawArray();
+ MakeSnake();//creates inital SNAKE
+ ClearArray();//clears all pixels accept food and snake
+ DrawArray();//draws pixels for food and snake
+
}
}
-//menu screen
+//menu screen show a mesdsage telling the user to press the button on the PCB in order to start the game
void Menu()
{
// first need to initialise display
@@ -145,7 +41,7 @@
wait(0.3);
while(1) {
- if (buttonA==1) {
+ if (buttonA==1) { // whenm the button is pressed a checkerboard effect is created and the game will start
lcd.clear();
checkerBoard();
wait(0.5);
@@ -155,16 +51,17 @@
while(1) {
wait(0.005);
- SnakeGame();
+ SnakeGame(); //Snake rules implemented
+
if (buttonA==1) {
pause=0;
Menu();
}
- if (button==1) {
+ if (button==1) { //if at any time in the game the joystick button is pressed then the game will pause and show the score in the centre
pause=0;
lcd.clear();
- sprintf(str,"%d",Score);
+ sprintf(str,"%d",Score); //enables string number to be printed on the screen
lcd.printString(str,37,2);
wait(1);
}
@@ -172,7 +69,7 @@
}
}
}
-
+//void displays a welcome message "Welcome to Snake" when the device is turned on
void Welcomescreen() // Display welcome screen
{
lcd.printString("Welcome",20,1); // display Welcome
@@ -182,35 +79,35 @@
lcd.printString("SNAKE",27,5); // display Snake
wait(1);
}
-
+//Void produces checkerboard effect to make the game look like it is loading
void checkerBoard()
{
//
- for (int i = 0; i < ni ; i+=2) {
+ for (int i = 0; i < ni ; i+=2) {//checks array values and sets every other pixel as 1
for (int j = 0; j < nj ; j+=2) {
lcd.setPixel(i,j);
}
}
lcd.refresh();
}
-
+//void enables the pixels that are set within the make snake void and the generate food void to be set as 1
void DrawArray()
{
- for(int x=0; x<84; x++) {
+ for(int x=0; x<84; x++) { //checks all of the array[x][y], if any of them are named as the snake or food it will set pixel
for (int y=0; y<48; y++) {
if(array[y][x]>=1) {
lcd.setPixel(x,y);
} else {
- lcd.clearPixel(x,y);
+ lcd.clearPixel(x,y); //Clears any pixels that may of previously been set to 1
}
}
}
lcd.refresh();
}
-
+//void to make sure there are no left over pixels when void DrawArray is initalised
void ClearArray()
{
- for(int x=0; x<84; x++) {
+ for(int x=0; x<84; x++) {//checks all of the array[x][y], if any of them are NOT named as the snake or food it will set pixel
for(int y=0; y<48; y++) {
if (array[y][x]==0) {
lcd.clearPixel(x,y);
@@ -221,13 +118,14 @@
}
lcd.refresh();
}
-
+//void to calibrate joystick so that the readings taken by the mbed are correct
void calibrateJoystick()// read default positions of the joystick to calibrate later readings
{
button.mode(PullDown); // must not move during calibration
joystick.x0 = xPot; // initial positions in the range 0.0 to 1.0 (0.5 if centred exactly)
joystick.y0 = yPot;
}
+//void so that when calibration is completed updates any changes to its position
void updateJoystick()
{
joystick.x = xPot - joystick.x0;// read current joystick values relative to calibrated values (in range -0.5 to 0.5, 0.0 is centred)
@@ -248,17 +146,18 @@
}
printFlag = 1;// set flag for printing
}
-
+//void to generate food from a random array that is created. this array is smaller so that the food is not direcvtly next to the wall on the screen
void GenerateFood()
{
- randX = rand() %83; //make random number between 0 - 84
- randY = rand() %47; //make random number between 0 - 48
+ randX = (rand() %80)+2; //make random number between 2-82
+ randY = (rand() %43)+2; //make random number between 2 - 45
while(array[randY][randX]) {
- randX= rand() %83;
- randY= rand() %47;
+ randX= (rand() %80)+2;
+ randY= (rand() %44)+2;
}
array[randY][randX]= 5;
}
+//Void to set the individual starting pixels of the snake and also shows the correct location of the pixels as the snake grows
void MakeSnake()
{
array[y+36][x+5]= 1;
@@ -274,7 +173,7 @@
array[y10+36][x10+5]= 0;
array[y11+36][x11+5]= 0;
array[y12+36][x12+5]= 0;
- array[y13+36][x13+5]= 0;
+ array[y13+36][x13+5]= 0; //SETS POSITION OF SNAKE ORGINALLY
array[y14+36][x14+5]= 0;
array[y15+36][x15+5]= 0;
array[y16+36][x16+5]= 0;
@@ -287,23 +186,34 @@
array[y23+36][x23+5]= 0;
array[y24+36][x24+5]= 0;
}
-
+//Void that actually runs throuhg the ruls of snake
void SnakeGame()
{
- MakeSnake();
- ClearArray();
+ MakeSnake(); // SNAKES CREATED
+ ClearArray(); //CLEARS EVERYTHING BAR SNAKE AND FOOD
DrawArray();
- SnakeGrowing();
+ SnakeGrowing(); //SNAKE GROWS AS EATS FOOD
+ lcd.drawRect(0,0,83,46,0); //Draws a rectangle around the outside of the snake game in order to creat a WALL
+ lcd.refresh();
if(pause==0) {
- MoveSnake();
+ MoveSnake(); //SNAKES MOVES AROUND
+ EndGame(); //When snake hits itself or wall it ENDS GAME
+ Winner(); //When maximum points are scored shows message saying YOU WINNN
}
if(y+36==randY && x+5==randX) {
- GenerateFood();
+ GenerateFood(); // When food is eaten create new food
+
- Score= Score+10;
+ Score= Score+10; //When food is eaten add 10 onto the score
+
+ }
+ if(y+36==randY && x+5==randX) {
+ LED=!LED; //switch on when food is eaten
}
+
}
+//void that enables snake to move from pixel to pixel whilst following the head
void MoveSnake()
{
array[y+36][x+5]= 0;
@@ -328,7 +238,7 @@
array[y10+36][x10+5]= 0;
- array[y11+36][x11+5]= 0;
+ array[y11+36][x11+5]= 0; //DIFFERENT VALUES OF SNAKE BODY FOLLOWING THE SNAKE HEAD
array[y12+36][x12+5]= 0;
@@ -367,7 +277,7 @@
x20=x19;
y20=y19;
x19=x18;
- y19=y18;
+ y19=y18; //MAKES THE PIXELS FOLLOWING
x18=x17;
y18=y17;
x17=x16;
@@ -382,7 +292,7 @@
y13=y12;
x12=x11;
y12=y11;
- x11=x10;
+ x11=x10;
y11=y10;
x10=x9;
y10=y9;
@@ -404,136 +314,108 @@
y2=y1;
x1 = x;
y1 = y;
- if (joystick.direction == CENTRE) {
- //lcd.printString("CENTRE",20,1); // display welcome
- wait(0.05);
- } else if (joystick.direction == UP) {
- //lcd.printString("UP",20,1); // display welcome
+ if (joystick.direction == CENTRE) { //when joystick is at the centre the snake stays the same
+
wait(0.05);
- //y--;
+ } else if (joystick.direction == UP) { //when joystick is in the up position it minus the y value from the array
+
+ wait(0.05);
+ //y--;
change = 1;
- if
- } else if (joystick.direction == DOWN) {
- //lcd.printString("DOWN",20,1); // display welcome
+
+ } else if (joystick.direction == DOWN) {//when joystick is in the up position it adds the y value from the array
wait(0.05);
change = 2;
//y++;
- } else if (joystick.direction == LEFT) {
- //lcd.printString("LEFT",20,1); // display welcome
+ } else if (joystick.direction == LEFT) {//when joystick is in the up position it minus the x value from the array
+
wait(0.05);
//x--;
change = 3;
- } else if (joystick.direction == RIGHT) {
- //lcd.printString("RIGHT",20,1); // display welcome
+ } else if (joystick.direction == RIGHT) {//when joystick is in the up position it adds the x value from the array
wait(0.05);
//x++;
change = 4;
}
- if (change == 1) {
- y--;
- } else if (change == 2) {
- y++;
- } else if (change == 3) {
- x--;
- } else if (change == 4) {
- x++;
- }
+ if (change == 1) { //change one makes snake go up
+ y--;
+
+ } else if (change == 2) { //change 2 makes snake go down
+ y++;
+ } else if (change == 3) { //change 3 makes snake go left
+ x--;
+ } else if (change == 4) { //change 4 makes snake go right
+ x++;
}
- void SnakeGrowing() {
+
+}//void makes snake grow depending on what the score is
+void SnakeGrowing()
+{
- if(Score>=10) {
- array[y+36][x+5]= 1;
+ if(Score>=10) {
+ array[y+36][x+5]= 1;
- array[y1+36][x1+5]= 1;
+ array[y1+36][x1+5]= 1;
- array[y2+36][x2+5]= 1;
+ array[y2+36][x2+5]= 1; //Snake grows to this length when scores 10
- array[y3+36][x3+5]= 1;
+ array[y3+36][x3+5]= 1;
- array[y4+36][x4+5]= 1;
+ array[y4+36][x4+5]= 1;
- array[y5+36][x5+5]= 1;
+ array[y5+36][x5+5]= 1;
- array[y6+36][x6+5]= 1;
+ array[y6+36][x6+5]= 1;
- }
+ }
- if(Score>=20) {
- array[y+36][x+5]= 1;
+ if(Score>=20) {
+ array[y+36][x+5]= 1;
- array[y1+36][x1+5]= 1;
-
- array[y2+36][x2+5]= 1;
+ array[y1+36][x1+5]= 1;
- array[y3+36][x3+5]= 1;
-
- array[y4+36][x4+5]= 1;
+ array[y2+36][x2+5]= 1;
- array[y5+36][x5+5]= 1;
+ array[y3+36][x3+5]= 1;
- array[y6+36][x6+5]= 1;
-
- array[y7+36][x7+5]= 1;
+ array[y4+36][x4+5]= 1; //Snake grows to this length when scores 20
- array[y8+36][x8+5]= 1;
- }
- if(Score>=30) {
- array[y+36][x+5]= 1;
+ array[y5+36][x5+5]= 1;
- array[y1+36][x1+5]= 1;
-
- array[y2+36][x2+5]= 1;
+ array[y6+36][x6+5]= 1;
- array[y3+36][x3+5]= 1;
-
- array[y4+36][x4+5]= 1;
+ array[y7+36][x7+5]= 2;
- array[y5+36][x5+5]= 1;
-
- array[y6+36][x6+5]= 1;
-
- array[y7+36][x7+5]= 1;
+ array[y8+36][x8+5]= 2;
+ }
+ if(Score>=30) {
+ array[y+36][x+5]= 1;
- array[y8+36][x8+5]= 1;
+ array[y1+36][x1+5]= 1;
- array[y9+36][x9+5]= 1;
-
- array[y10+36][x10+5]= 1;
+ array[y2+36][x2+5]= 1;
- }
- if(Score>=40) {
- array[y+36][x+5]= 1;
-
- array[y1+36][x1+5]= 1;
+ array[y3+36][x3+5]= 1;
- array[y2+36][x2+5]= 1;
+ array[y4+36][x4+5]= 1;
- array[y3+36][x3+5]= 1;
-
- array[y4+36][x4+5]= 1;
+ array[y5+36][x5+5]= 1;//Snake grows to this length when scores 30
- array[y5+36][x5+5]= 1;
-
- array[y6+36][x6+5]= 1;
+ array[y6+36][x6+5]= 1;
- array[y7+36][x7+5]= 1;
+ array[y7+36][x7+5]= 2;
- array[y8+36][x8+5]= 1;
-
- array[y9+36][x9+5]= 1;
+ array[y8+36][x8+5]= 2;
- array[y10+36][x10+5]= 1;
-
- array[y11+36][x11+5]= 1;
+ array[y9+36][x9+5]= 2;
- array[y12+36][x12+5]= 1;
+ array[y10+36][x10+5]= 2;
- }
-
- if(Score>=50) {
+ }
+ if(Score>=40) {
array[y+36][x+5]= 1;
array[y1+36][x1+5]= 1;
@@ -546,23 +428,52 @@
array[y5+36][x5+5]= 1;
+ array[y6+36][x6+5]= 1;//Snake grows to this length when scores 40
+
+ array[y7+36][x7+5]= 2;
+
+ array[y8+36][x8+5]= 2;
+
+ array[y9+36][x9+5]= 2;
+
+ array[y10+36][x10+5]= 2;
+
+ array[y11+36][x11+5]= 2;
+
+ array[y12+36][x12+5]= 2;
+
+ }
+
+ if(Score>=50) {
+ array[y+36][x+5]= 1;
+
+ array[y1+36][x1+5]= 1;
+
+ array[y2+36][x2+5]= 1;
+
+ array[y3+36][x3+5]= 1;
+
+ array[y4+36][x4+5]= 1;
+
+ array[y5+36][x5+5]= 1; //Snake grows to this length when scores 50
+
array[y6+36][x6+5]= 1;
- array[y7+36][x7+5]= 1;
+ array[y7+36][x7+5]= 2;
- array[y8+36][x8+5]= 1;
+ array[y8+36][x8+5]= 2;
- array[y9+36][x9+5]= 1;
+ array[y9+36][x9+5]= 2;
- array[y10+36][x10+5]= 1;
+ array[y10+36][x10+5]= 2;
- array[y11+36][x11+5]= 1;
+ array[y11+36][x11+5]= 2;
- array[y12+36][x12+5]= 1;
+ array[y12+36][x12+5]= 2;
- array[y13+36][x13+5]= 1;
+ array[y13+36][x13+5]= 2;
- array[y14+36][x14+5]= 1;
+ array[y14+36][x14+5]= 2;
}
if(Score>=60) {
@@ -580,25 +491,25 @@
array[y6+36][x6+5]= 1;
- array[y7+36][x7+5]= 1;
+ array[y7+36][x7+5]= 2; //Snake grows to this length when scores 60
- array[y8+36][x8+5]= 1;
+ array[y8+36][x8+5]= 2;
- array[y9+36][x9+5]= 1;
+ array[y9+36][x9+5]= 2;
- array[y10+36][x10+5]= 1;
+ array[y10+36][x10+5]= 2;
- array[y11+36][x11+5]= 1;
+ array[y11+36][x11+5]= 2;
- array[y12+36][x12+5]= 1;
+ array[y12+36][x12+5]= 2;
- array[y13+36][x13+5]= 1;
+ array[y13+36][x13+5]= 2;
- array[y14+36][x14+5]= 1;
+ array[y14+36][x14+5]= 2;
- array[y15+36][x15+5]= 1;
+ array[y15+36][x15+5]= 2;
- array[y16+36][x16+5]= 1;
+ array[y16+36][x16+5]= 2;
}
if(Score>=70) {
@@ -614,31 +525,31 @@
array[y5+36][x5+5]= 1;
- array[y6+36][x6+5]= 1;
+ array[y6+36][x6+5]= 1; //Snake grows to this length when scores 70
- array[y7+36][x7+5]= 1;
+ array[y7+36][x7+5]= 2;
- array[y8+36][x8+5]= 1;
+ array[y8+36][x8+5]= 2;
- array[y9+36][x9+5]= 1;
+ array[y9+36][x9+5]= 2;
- array[y10+36][x10+5]= 1;
+ array[y10+36][x10+5]= 2;
- array[y11+36][x11+5]= 1;
+ array[y11+36][x11+5]= 2;
- array[y12+36][x12+5]= 1;
+ array[y12+36][x12+5]= 2;
- array[y13+36][x13+5]= 1;
+ array[y13+36][x13+5]= 2;
- array[y14+36][x14+5]= 1;
+ array[y14+36][x14+5]= 2;
- array[y15+36][x15+5]= 1;
+ array[y15+36][x15+5]= 2;
- array[y16+36][x16+5]= 1;
+ array[y16+36][x16+5]= 2;
- array[y17+36][x17+5]= 1;
+ array[y17+36][x17+5]= 2;
- array[y18+36][x18+5]= 1;
+ array[y18+36][x18+5]= 2;
}
if(Score>=80) {
@@ -656,33 +567,33 @@
array[y6+36][x6+5]= 1;
- array[y7+36][x7+5]= 1;
+ array[y7+36][x7+5]= 2;
- array[y8+36][x8+5]= 1;
+ array[y8+36][x8+5]= 2;
- array[y9+36][x9+5]= 1;
+ array[y9+36][x9+5]= 2;
- array[y10+36][x10+5]= 1;
+ array[y10+36][x10+5]= 2; //Snake grows to this length when scores 80
- array[y11+36][x11+5]= 1;
+ array[y11+36][x11+5]= 2;
- array[y12+36][x12+5]= 1;
+ array[y12+36][x12+5]= 2;
- array[y13+36][x13+5]= 1;
+ array[y13+36][x13+5]= 2;
- array[y14+36][x14+5]= 1;
+ array[y14+36][x14+5]= 2;
- array[y15+36][x15+5]= 1;
+ array[y15+36][x15+5]= 2;
- array[y16+36][x16+5]= 1;
+ array[y16+36][x16+5]= 2;
- array[y17+36][x17+5]= 1;
+ array[y17+36][x17+5]= 2;
- array[y18+36][x18+5]= 1;
+ array[y18+36][x18+5]= 2;
- array[y19+36][x19+5]= 1;
+ array[y19+36][x19+5]= 2;
- array[y20+36][x20+5]= 1;
+ array[y20+36][x20+5]= 2;
}
if(Score>=90) {
@@ -700,37 +611,36 @@
array[y6+36][x6+5]= 1;
- array[y7+36][x7+5]= 1;
-
- array[y8+36][x8+5]= 1;
+ array[y7+36][x7+5]= 2;
- array[y9+36][x9+5]= 1;
+ array[y8+36][x8+5]= 2; //Snake grows to this length when scores 90
- array[y10+36][x10+5]= 1;
+ array[y9+36][x9+5]= 2;
- array[y11+36][x11+5]= 1;
+ array[y10+36][x10+5]= 2;
- array[y12+36][x12+5]= 1;
+ array[y11+36][x11+5]= 2;
- array[y13+36][x13+5]= 1;
+ array[y12+36][x12+5]= 2;
- array[y14+36][x14+5]= 1;
+ array[y13+36][x13+5]= 2;
- array[y15+36][x15+5]= 1;
+ array[y14+36][x14+5]= 2;
- array[y16+36][x16+5]= 1;
+ array[y15+36][x15+5]= 2;
- array[y17+36][x17+5]= 1;
+ array[y16+36][x16+5]= 2;
- array[y18+36][x18+5]= 1;
+ array[y17+36][x17+5]= 2;
- array[y19+36][x19+5]= 1;
+ array[y18+36][x18+5]= 2;
- array[y20+36][x20+5]= 1;
+ array[y19+36][x19+5]= 2;
- array[y21+36][x21+5]= 1;
+ array[y20+36][x20+5]= 2;
- array[y22+36][x22+5]= 1;
+ array[y21+36][x21+5]= 2;
+ array[y22+36][x22+5]= 2;
}
if(Score>=100) {
@@ -748,76 +658,208 @@
array[y6+36][x6+5]= 1;
- array[y7+36][x7+5]= 1;
+ array[y7+36][x7+5]= 2;
- array[y8+36][x8+5]= 1;
+ array[y8+36][x8+5]= 2;
- array[y9+36][x9+5]= 1;
+ array[y9+36][x9+5]= 2;
- array[y10+36][x10+5]= 1;
+ array[y10+36][x10+5]= 2;
- array[y11+36][x11+5]= 1;
+ array[y11+36][x11+5]= 2;
- array[y12+36][x12+5]= 1;
+ array[y12+36][x12+5]= 2; //Snake grows to this length when scores 100
- array[y13+36][x13+5]= 1;
+ array[y13+36][x13+5]= 2;
- array[y14+36][x14+5]= 1;
+ array[y14+36][x14+5]= 2;
- array[y15+36][x15+5]= 1;
+ array[y15+36][x15+5]= 2;
- array[y16+36][x16+5]= 1;
+ array[y16+36][x16+5]= 2;
- array[y17+36][x17+5]= 1;
+ array[y17+36][x17+5]= 2;
- array[y18+36][x18+5]= 1;
+ array[y18+36][x18+5]= 2;
- array[y19+36][x19+5]= 1;
+ array[y19+36][x19+5]= 2;
- array[y20+36][x20+5]= 1;
+ array[y20+36][x20+5]= 2;
- array[y21+36][x21+5]= 1;
+ array[y21+36][x21+5]= 2;
- array[y22+36][x22+5]= 1;
+ array[y22+36][x22+5]= 2;
- array[y23+36][x23+5]= 1;
+ array[y23+36][x23+5]= 2;
- array[y24+36][x24+5]= 1;
+ array[y24+36][x24+5]= 2;
}
- DrawArray();
+ DrawArray(); // draws snake
}
-
-/*void GameOver()
+//void that ends game when snake hits the wall or snake eats itself
+void EndGame()
{
-if (joystick.direction == CENTRE) {
- //lcd.printString("CENTRE",20,1); // display welcome
- wait(0.05);
- } else if (joystick.direction == UP) {
- lcd.printString("UP",20,1); // display welcome
- wait(0.05);
- if(y+36==2 && x+5==2) {
- GenerateFood();
- } else if (joystick.direction == DOWN) {
- lcd.printString("DOWN",20,1); // display welcome
- wait(0.05);
- change = 2;
- if(y+36==randY && x+5==randX) {
- GenerateFood();
- } else if (joystick.direction == LEFT) {
- //lcd.printString("LEFT",20,1); // display welcome
- wait(0.05);
- change = 3;
- } else if (joystick.direction == RIGHT) {
- //lcd.printString("RIGHT",20,1); // display welcome
- wait(0.05);
- change = 4;
- }
+
+ if(y+36==46||y+36==0||x+5==83||x+5==0) { //checks if the snake head is equal to any pixels that are out of bounds
+ GameOver();
+ wait(3);
}
}
-*/
+//void to show when game is ended. shows GAMEOVER and the score that the user has
+void GameOver()
+{
+
+ // first need to initialise display
+
+ lcd.clear();
+ lcd.printString("GAME OVER",15,1); // print GAME OVER
+ sprintf(str,"%d",Score);
+ lcd.printString(str,37,3); // shows score in centre of screen
+ lcd.printString("Press Button",6,5); // shows press button to return to menu
+ while(1) {
+ if (buttonA==1) {
+ lcd.clear();
+ checkerBoard();
+ wait(0.5);
+ lcd.clear();
+ x = 0;
+ x1 = 0;
+ x2 = 0;
+ x3 = 0;
+ x4 = 0;
+ x5 = 0;
+ x6 = 0;
+ x7 = 0;
+ x8 = 0;
+ x9 = 0;
+ x10 = 0;
+ x11 = 0;
+ x12 = 0;
+ x13 = 0;
+ x14 = 0;
+ x15 = 0; // SETS ALL VALUES BACK TO ORGINAL SO GAME CAN START AGAIN
+ x16 = 0;
+ x17 = 0;
+ x18 = 0;
+ x19 = 0;
+ x20 = 0;
+ x21 = 0;
+ x22 = 0;
+ x23 = 0;
+ x24 = 0;
+ y = 0;
+ y1 = 1;
+ y2 = 2;
+ y3 = 3;
+ y4 = 4;
+ y5 = 5;
+ y6 = 6;
+ y7 = 7;
+ y8 = 8;
+ y9 = 9;
+ y10 = 10;
+ y11 = 11;
+ y12 = 12;
+ y13 = 13;
+ y14 = 14;
+ y15 = 15;
+ y16 = 16;
+ y17 = 17;
+ y18 = 18;
+ y19 = 19;
+ y20 = 20;
+ y21 = 21;
+ y22 = 22;
+ y23 = 23;
+ y24 = 24;
+ change = 1;
+ pause=0;
+ Score=0;
+
+ Menu(); // returns to menu so game can start again
+
+ }
+ }
+}
+//void that comes up when the maximum score is achieved shows "YOU WIN" and shows the user the score
+void Winner()
+{
+ if(Score==110) { // when the score is equal to 110
+
+ lcd.clear();
+ lcd.printString("YOU WIN!!!",10,1); // Clear screen and show YOU WIN
+ sprintf(str,"%d",Score); // shows score in the centre of the page
+ lcd.printString(str,34,3);
+ lcd.printString("Press Button",6,5);
+ while(1) {
+ if (buttonA==1) { // when the button on the PCB the screen checkers and the Menu displayed
+ lcd.clear();
+ checkerBoard();
+ wait(0.5);
+ lcd.clear();
+ x = 0;
+ x1 = 0;
+ x2 = 0;
+ x3 = 0;
+ x4 = 0;
+ x5 = 0;
+ x6 = 0;
+ x7 = 0;
+ x8 = 0;
+ x9 = 0;
+ x10 = 0;
+ x11 = 0;
+ x12 = 0;
+ x13 = 0;
+ x14 = 0;
+ x15 = 0;
+ x16 = 0;
+ x17 = 0;
+ x18 = 0;
+ x19 = 0;
+ x20 = 0;
+ x21 = 0;
+ x22 = 0;
+ x23 = 0; // SET ALL VALUES BACK TO ORIGINAL VALUE
+ x24 = 0;
+ y = 0;
+ y1 = 1;
+ y2 = 2;
+ y3 = 3;
+ y4 = 4;
+ y5 = 5;
+ y6 = 6;
+ y7 = 7;
+ y8 = 8;
+ y9 = 9;
+ y10 = 10;
+ y11 = 11;
+ y12 = 12;
+ y13 = 13;
+ y14 = 14;
+ y15 = 15;
+ y16 = 16;
+ y17 = 17;
+ y18 = 18;
+ y19 = 19;
+ y20 = 20;
+ y21 = 21;
+ y22 = 22;
+ y23 = 23;
+ y24 = 24;
+ change = 1;
+ pause=0;
+ Score=0;
+
+ Menu(); //SHOW MENU
+
+ }
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.h Thu May 05 13:37:52 2016 +0000
@@ -0,0 +1,124 @@
+
+/**@file main.h
+@brief Header file containing functions prototypes,defines and global variables.
+@author William J Smith
+@date May 2016
+*/
+
+#include "mbed.h"
+#include "N5110.h"
+#define DIRECTION_TOLERANCE 0.45// change this to alter tolerance of joystick direction
+
+DigitalIn button(PTB11);/**@namespace Joy Stick Button Digital in*/
+DigitalOut LED(PTC2);/**@namespace LED Digital output from mbed pin*/
+AnalogIn xPot(PTB2);/**@namespace Joystick potentiometer connection*/
+AnalogIn yPot(PTB3);/**@namespace Joystick potentiometer connection*/
+Ticker pollJoystick;/**@namespace timer to regularly read the joystick*/
+// Serial for debug
+Serial serial(USBTX,USBRX);// Serial for debug
+
+// create enumerated type (0,1,2,3 etc. for direction)
+// could be extended for diagonals etc.
+enum DirectionName {
+ UP,
+ DOWN,
+ LEFT,
+ RIGHT,
+ CENTRE,
+ UNKNOWN
+};
+typedef struct JoyStick Joystick;// struct for Joystick
+struct JoyStick {
+ float x; /** current x value*/
+ float x0; /** 'centred' x value*/
+ float y; /** current y value*/
+ float y0; /** 'centred' y value*/
+ int button; /** button state (assume pull-down used, so 1 = pressed, 0 = unpressed)*/
+ DirectionName direction; /** current direction*/
+};
+Joystick joystick;/** create struct variable*/
+int printFlag = 0;
+
+/**@namespace VCC, SCE, RST, D/C, MOSI, SCLK, LED*/
+N5110 lcd( PTE26, PTA0, PTC4, PTD0, PTD2, PTD1, PTC3);
+DigitalIn buttonA(PTB18);/**@namespace Digital input for button on PCB*/
+int ni = 84; /*!<variable for matrixs of N5110*/
+int x = 0;/*!<x Value of snake head */
+int x1 = 0;/*!< x Value of snake Body including x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 x16 x17 x18 x19 x20 x21 x22 x23 x24*/
+int x2 = 0;
+int x3 = 0;
+int x4 = 0;
+int x5 = 0;
+int x6 = 0;
+int x7 = 0;
+int x8 = 0;
+int x9 = 0;
+int x10 = 0;
+int x11 = 0;
+int x12 = 0;
+int x13 = 0;
+int x14 = 0;
+int x15 = 0;
+int x16 = 0;
+int x17 = 0;
+int x18 = 0;
+int x19 = 0;
+int x20 = 0;
+int x21 = 0;
+int x22 = 0;
+int x23 = 0;
+int x24 = 0;
+int y = 0;/*!< y Value of snake Head*/
+int y1 = 1;/*!< y Value of snake Body including y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y13 y14 y15 y16 y17 y18 y19 y20 y21 y22 y23 y24*/
+int y2 = 2;
+int y3 = 3;
+int y4 = 4;
+int y5 = 5;
+int y6 = 6;
+int y7 = 7;
+int y8 = 8;
+int y9 = 9;
+int y10 = 10;
+int y11 = 11;
+int y12 = 12;
+int y13 = 13;
+int y14 = 14;
+int y15 = 15;
+int y16 = 16;
+int y17 = 17;
+int y18 = 18;
+int y19 = 19;
+int y20 = 20;
+int y21 = 21;
+int y22 = 22;
+int y23 = 23;
+int y24 = 24;
+int change = 1;/*!< function to change the direction the snakes head is travelling*/
+int n[84][48];/*!< Array for nokia 5110 screen*/
+int array[48][84];/*!< Array for nokia 5110 screen for snake to travel in*/
+int nj = 48;/*!< Variable for checkerboard function*/
+int cells[84][48];/*!< Variable for checkerboard function*/
+int Score = 0;/*!< Variable for the score that changed everytime food is eaten by the snake*/
+int randX;/*!< x Variable that is randomly selected within the array to generate food in a random space*/
+int randY;/*!< y Variable that is randomly selected within the array to generate food in a random space*/
+char str[64];/*!< Character that enables you to print the score number on the screen */
+int pause=0; /*!< Variable for pause function*/
+
+void Menu(); /*!< Void for Menu function*/
+void Welcomescreen(); /*!< Void for Welcome screen function which appears when device turned on*/
+void clearCells(); /*!< Void to switch all pixels on the screen to OFF */
+void checkerBoard(); /*!< Void to Make checker baord effect over */
+void DrawArray(); /*!<Sets the pixel depending on whether 0 or higher than 1*/
+void ClearArray();/*!<Checks over each individual pixel and if its 0 it will clear*/
+void GenerateFood();/*!<Generates food at random places*/
+void MakeSnake(); /*!<sets the pixels for the snake*/
+void SnakeGame(); /*!<Game Rules*/
+void MoveSnake(); /*!<moving the snake using the joy stick*/
+void calibrateJoystick();/*!void to calibrate the joystick*/
+void updateJoystick();/*!<Updates joystick within set amount of time*/
+void SnakeGrowing();/*!<Function to make snake grow when it eats the food*/
+void EndGame();/*!<Functions ends game when Snake hits itself or the wall*/
+void calibrateJoystick();/*!void to calibrate the joystick*/
+void updateJoystick();/*!void to calibrate the joystick*/
+void GameOver();/*!void that runs Game over screen and enables user to go back to the beginning*/
+void Winner();/*!void to show WINNER screen and enables user to go back to the beginning*/
\ No newline at end of file