Michael Birney
Completed Snake Program
Dependencies: N5110 PinDetect PowerControl mbed
Fork of
DocTest
by 
Craig Evans
Diff: main.cpp
- Revision:
- 6:1de103a19681
- Parent:
- 5:1bfc306466db
- Child:
- 7:2942e97924f0
diff -r 1bfc306466db -r 1de103a19681 main.cpp
--- a/main.cpp Wed Apr 15 16:34:05 2015 +0000
+++ b/main.cpp Mon Apr 27 20:27:23 2015 +0000
@@ -1,131 +1,6 @@
-#include "mbed.h"
-#include "N5110.h"
-#include <vector>
-#include <cstddef> // std::size_t
-#include <valarray>
-#include <iostream>
-
-//#include "PinDetect.h"
-
-// change this to alter tolerance of joystick direction
-#define DIRECTION_TOLERANCE 0.1
-// VCC,SCE,RST,D/C,MOSI,SCLK,LED
-N5110 lcd(p7,p8,p9,p10,p11,p13,p21);
-BusOut myleds(LED1,LED2,LED3,LED4);
-InterruptIn startButton(p16);
-InterruptIn resetButton(p17);
-
-// connections for joystick
-DigitalIn button(p18);
-AnalogIn xPot(p19);
-AnalogIn yPot(p20);
-Serial serial(USBTX,USBRX);
-int snake[84][47];
-bool gamePlaying =0;
-
-vector<int> snakeX (5);
-vector<int> snakeY (5,27);
-int food[2];//element 0 = x position element 1= y position
-
-void randomiseFood(){
-
- srand(time(NULL));
-
- int randomX = rand() %84; // generate random number between 0 and 83
- int randomY = rand() %47;// generate random number betwwen 0 and 46
-
- if (lcd.getPixel(randomX,randomY)==1){ // if that pixel is already filled
-
- randomX = rand() %83 ; // generate new random numbers
- randomY = rand() %47 ;//
-
-
- }
- lcd.setPixel(randomX,randomY) ;// set the food
- food[0]=randomX; // update food position
- food[1]=randomY;// update food position
- lcd.refresh();
-
- }
-
- // snakeX.insert(snakeX.begin() , 60);
- // snakeY.insert(snakeY.begin() , 60 );
- // snakeX.push_front(30);
- // snakeY.push_front(30);
-
-
-void checkForFood(){
-
- if (snakeX.back()==food[0] && snakeY.back()==food[1]){ // if x and y of head match food
-
- snakeX.push_back(food[0]+1);
- snakeY.push_back(food[1]);
-
-
- // snakeX.insert (snakeX.begin() + 0, );
- //snakeY.insert (snakeY.begin() + 0, );
-
- randomiseFood();
-
- }
-
-
- }
-
-//snakeX[4]=21;
-
-//int snakeX[4]={21,22,23,24}; //5 pixels start position 21 22 23 24 25
-//int snakeY[4]={27,27,27,27}; //5 pixels y position 27 27 27 27 27
-
-
-void startingSnake(){
-
- for (int i=0; i<5; i++){
- lcd.setPixel(snakeX[i],snakeY[i]);
- // lcd.drawRect(snakeX[i],snakeY[i],1,1,1);
- }
- }
-
-
-
-// timer to regularly read the joystick
-Ticker pollJoystick;
-
-Ticker startGame;
-
-
-void Boundary(){
-
-
- for(int x = 0; x< 84; x++) {
- lcd.setPixel(x,0);
- }
- for(int x = 0; x< 84; x++) {
- lcd.setPixel(x,47);
- }
- for(int y = 0; y< 48; y++) {
- lcd.setPixel(0,y);
- }
- for(int y = 0; y< 48; y++) {
- lcd.setPixel(83,y);
- }
-
- lcd.refresh();
-
-
-}
-enum Difficulty {
- EASY,
- MEDIUM,
- HARD,
-};
-
-int gameSpeed;//change depending on difficulty selected
-
-Difficulty currentDifficulty=EASY;
+#include "main.h"
// create enumerated type (0,1,2,3 etc. for direction)
-// could be extended for diagonals etc.
enum DirectionName {
UP,
DOWN,
@@ -135,6 +10,16 @@
UNKNOWN
};
+// create enumerated type (0,1,2 for difficulty)
+enum Difficulty {
+ EASY,
+ MEDIUM,
+ HARD,
+};
+
+Difficulty currentDifficulty=EASY;
+
+
// struct for Joystick
typedef struct JoyStick Joystick;
struct JoyStick {
@@ -148,7 +33,6 @@
// create struct variable
Joystick joystick;
-
DirectionName previousDirection =RIGHT;
// read default positions of the joystick to calibrate later readings
@@ -172,118 +56,22 @@
if ( fabs(joystick.y) < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
joystick.direction = CENTRE;
} else if ( joystick.y > DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
- joystick.direction = UP;
+ joystick.direction = DOWN;
} else if ( joystick.y < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
- joystick.direction = DOWN;
+ joystick.direction = UP;
} else if ( joystick.x > DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
- joystick.direction = LEFT; // remember switched this with right
+ joystick.direction = RIGHT; // remember switched this with right
} else if ( joystick.x < DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
- joystick.direction = RIGHT;
+ joystick.direction = LEFT;
} else {
joystick.direction = UNKNOWN;
}
}
+//GAME FUNCTIONS
-void updateSnakeArray(){
-
- if (joystick.direction==LEFT && previousDirection==RIGHT){
- joystick.direction=RIGHT;
- }
-
- if (joystick.direction==RIGHT && previousDirection==LEFT){
- joystick.direction=LEFT;
- }
-
- if (joystick.direction==UP && previousDirection==DOWN){
- joystick.direction=DOWN;
- }
-
- if (joystick.direction==DOWN && previousDirection==UP){
- joystick.direction=UP;
- }
-
- if (joystick.direction==UNKNOWN || joystick.direction==CENTRE){
- joystick.direction= previousDirection;
- }
-
-
- lcd.clearPixel(snakeX[0],snakeY[0]);//delete tail
- // lcd.drawRect(snakeX[0],snakeY[0],1,1,2);
-
- for (int i =0; i<snakeX.size(); i++){ // shift elements
- snakeX[i]=snakeX[i + 1]; // apart from head
- snakeY[i]=snakeY[i+ 1];
- }
-
- switch(joystick.direction){
-
- case UP:snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2];
- snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2]-1;
- break;
-
- case DOWN:
- snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2];
- snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2]+1;
- break;
-
- case LEFT:
- snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]-1;
- snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];
- break;
-
- case RIGHT:
- snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]+1;
- snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];
- break;
-
- case CENTRE:
- snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]+1;
- snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];
- break;
- case UNKNOWN:
- snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]+1;
- snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];
- break;
-
-
- }
-
- /* snakeX[0]=snakeX[1];
- snakeX[1]=snakeX[2];
- snakeX[2]=snakeX[3];
- snakeX[3]=snakeX[4];
- snakeY[0]=snakeY[1];
- snakeY[1]=snakeY[2];
- snakeY[2]=snakeY[3];
- snakeY[3]=snakeY[4];
-
-
- */
-
-}
+//For start MENU
-void checkForCollision(){
-
- if (snakeX.back()==0 || snakeX.back()==83 || snakeY.back()==0 ||snakeY.back()==47){
- startGame.detach();
- lcd.clear();
-
-
-
- }
-
-
- }
-void startButtonPressed(){
- gamePlaying=1;
- myleds=15;
- }
-
- void resetButtonPressed(){
- gamePlaying=0;
- myleds=0;
- }
void displaySplash()
{
// these are default settings so not strictly needed
@@ -324,7 +112,7 @@
lcd.drawCircle(10,35,2,0);
lcd.drawCircle(10,43,2,0);
- gameSpeed= 1.0;
+ gameSpeed= 0.5;
}
void mediumSelected() // display when medium is selected
{
@@ -339,7 +127,7 @@
lcd.drawCircle(10,27,2,0);
lcd.drawCircle(10,35,2,1);
lcd.drawCircle(10,43,2,0);
- gameSpeed=1.0/4;
+ gameSpeed=0.5;
}
void hardSelected() // display when hard is selected
@@ -355,19 +143,11 @@
lcd.drawCircle(10,27,2,0);
lcd.drawCircle(10,35,2,0);
lcd.drawCircle(10,43,2,1);
- gameSpeed=1.0/8;
-}
-void drawSnake() {
-
- for(int x =10; x<15; x++) {
- lcd.setPixel(x,25);
- // lcd.drawRect(x,25,2,2,1);
- snake[x][25]=1;
- }
+ gameSpeed=1.0/32;
}
-
-void checkSelectedDifficulty() {
+void checkSelectedDifficulty()
+{
switch(currentDifficulty) {
case EASY:
@@ -420,87 +200,401 @@
wait(0.2);
}
-int updateGameFlag=0;
-void updateGameISR(){
- updateGameFlag=1;
+
+
+
+//for gamePLAY
+
+
+
+void startingSnake()
+{
+ snakeX[0]=20;
+ snakeX[1]=22;
+ snakeX[2]=24;
+ snakeX[3]=26;
+ snakeX[4]=28;
+
+ for (int i=0; i<5; i++) {
+ // lcd.setPixel(snakeX[i],snakeY[i]);
+ lcd.drawRect(snakeX[i],snakeY[i],1,1,1);
}
- void printVectorContent(){
-
-
- for( int i=0; i<snakeX.size(); i++)
- serial.printf( "%d \n \r" ,snakeX[i]);
+
+ wait(5);
+}
+
+
+void randomiseFood()
+{
+
+ srand(time(NULL));
+
+ int randomX = rand() % (83-1)+1; // generate random number between 1 and 82 // spaces within boundar
+
+ int randomY = rand() %(46-9)+9;// generate random number betwwen 9 and 46
+
+ // int r = rand() % (21 - 10) + 10 // 10 -21 inclusive
+
+ while(lcd.getPixel(randomX,randomY)==1) { // if that pixel is already filled
+
+ int randomX = rand() % (83-1)+1; // generate random number between 1 and 82 // spaces within boundar
+
+ int randomY = rand() %(46-9)+9;
+
+
+ }
+ // lcd.setPixel(randomX,randomY) ;// set the food
+ lcd.drawRect(randomX,randomY,1,1,1);
+ food[0]=randomX; // update food position
+ food[1]=randomY;// update food position
+ lcd.refresh();
+
+}
+
+void Boundary()
+{
+
+
+ for(int x = 0; x< 84; x++) {
+ lcd.setPixel(x,8);
+ }
+ for(int x = 0; x< 84; x++) {
+ lcd.setPixel(x,47);
+ }
+ for(int y = 8; y< 48; y++) {
+ lcd.setPixel(0,y);
+ }
+ for(int y = 8; y< 48; y++) {
+ lcd.setPixel(83,y);
+ }
+
+ lcd.refresh();
+
+}
+
+
+
+
+
+void updateSnakeArray()
+{
+
+ if (joystick.direction==LEFT && previousDirection==RIGHT) {
+ joystick.direction=RIGHT;
+ }
+
+ if (joystick.direction==RIGHT && previousDirection==LEFT) {
+ joystick.direction=LEFT;
+ }
+
+ if (joystick.direction==UP && previousDirection==DOWN) {
+ joystick.direction=DOWN;
+ }
+
+ if (joystick.direction==DOWN && previousDirection==UP) {
+ joystick.direction=UP;
+ }
+
+ if (joystick.direction==UNKNOWN || joystick.direction==CENTRE) {
+ joystick.direction= previousDirection;
+ }
+
+
+ // lcd.clearPixel(snakeX[0],snakeY[0]);//delete tail
+ lcd.drawRect(snakeX[0],snakeY[0],1,1,2);
+
+ for (int i =0; i<snakeX.size(); i++) { // shift elements
+ snakeX[i]=snakeX[i + 1]; // apart from head
+ snakeY[i]=snakeY[i+ 1];
+ }
+
+ switch(joystick.direction) {
+
+ case UP:
+ snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2];
+ snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2]-2;
+ break;
+
+ case DOWN:
+ snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2];
+ snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2]+2;
+ break;
+
+ case LEFT:
+ snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]-2;
+ snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];
+ break;
+
+ case RIGHT:
+ snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]+2;
+ snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];
+ break;
+
+ case CENTRE:
+ snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]+2;
+ snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];
+ break;
+ case UNKNOWN:
+ snakeX[snakeX.size()-1]=snakeX[snakeX.size()-2]+2;
+ snakeY[snakeY.size()-1]=snakeY[snakeY.size()-2];
+ break;
+
+ }
+}
+
+void gameOver()
+{
+ startGame.detach();
+ lcd.clearPixel(snakeX.back(),snakeY.back());
+ wait(0.2);
+ lcd.refresh();
+ lcd.setPixel(snakeX.back(),snakeY.back());
+ wait(0.3);
+ lcd.refresh();
+ lcd.clearPixel(snakeX.back(),snakeY.back());
+ wait(0.2);
+ lcd.refresh();
+ lcd.setPixel(snakeX.back(),snakeY.back());
+ wait(0.2);
+ lcd.refresh();
+ lcd.clear();
+ lcd.inverseMode();
+
+
+ lcd.printString("Your Score" ,12,0);
+ lcd.printString("=" ,34,1);
+
+ int updatedScore=score;
+ int length = sprintf(buffer,"%2d",updatedScore);
+
+ if (length <= 14) // if string will fit on display
+ lcd.printString(buffer,40,1);
+
+ lcd.printString("Press Reset" ,2,3);
+ lcd.printString("Button To" ,10,4);
+ lcd.printString("Play Again" ,20,5);
+ //
+ lcd.refresh();
+ gamePlaying=0;
+
+}
+
+void checkForCollision()
+{
+
+ if (snakeX.back()<=0 || snakeX.back()>=82 || snakeY.back()<=8 ||snakeY.back()>=47) {
+
+ gameOver();
+ }
+}
+
+
+
+void checkForFood()
+{
+
+ if (snakeX.back()+1==food[0] && snakeY.back()==food[1]) { // if x and y of head match food
+
+
+ switch(joystick.direction) {
+
+ case RIGHT:
+ snakeX.push_back(food[0]+2);
+ snakeY.push_back(food[1]);
+ break;
+ case LEFT:
+
+ snakeX.push_back(food[0]-2);
+ snakeY.push_back(food[1]);
+ break;
+
+
+ case UP:
+ snakeX.push_back(food[0]);
+ snakeY.push_back(food[1]-2);
+ break;
+
+ case DOWN:
+ snakeX.push_back(food[0]);
+ snakeY.push_back(food[1]+2);
+ break;
+ }
+
+ int updatedScore;
+ // snakeX.insert (snakeX.begin() + 0, );
+ //snakeY.insert (snakeY.begin() + 0, );
+
+ updatedScore= score+5;
+ score=updatedScore;
+ int length = sprintf(buffer,"%2d",updatedScore);
+
+ if (length <= 14) // if string will fit on display
+ lcd.printString(buffer,0,0);
+ // lcd.refresh();
+
+ randomiseFood();
+
}
-int main()
+
+}
+
+void startButtonPressed()
+{
+ gamePlaying=1;
+ // myleds=15;
+}
+
+
+
+
+void updateGameISR()
+{
+ updateGameFlag=1;
+}
+
+void printVectorContent()
+{
+
+ for( int i=0; i<snakeX.size(); i++)
+ serial.printf( "%d \n \r" ,snakeX[i]);
+
+}
+
+
+
+void pauseButtonPressed()
+{
+
+ if (gamePaused==0) {
+
+ startGame.detach();
+
+ gamePaused=1;
+ }
+
+ else {
+
+
+ startGame.attach(&updateGameISR,gameSpeed);
+
+ gamePaused=0;
+ }
+
+
+
+}
+
+void checkForCollisionWithSelf(int i)
+{
+
+ if(snakeX.back()==snakeX[i] && snakeY.back()==snakeY[i]) {
+
+
+ gameOver();
+
+
+ }
+
+
+}
+void startUpMenu()
{
// first need to initialise display
- lcd.init();
displaySplash();
wait(4);
easySelected();
joystick.direction=UNKNOWN;
calibrateJoystick(); // get centred values of joystick
- pollJoystick.attach(&updateJoystick,1.0/5.0);
+ pollJoystick.attach(&updateJoystick,1.0/5.0);
startGame.attach(&updateGameISR,gameSpeed); // read joystick 10 times per second
- startButton.mode(PullUp);
+
+
+
+}
+
+void resetButtonPressed()
+{
+ // myleds=0;
+ easySelected();
+ pollJoystick.attach(&updateJoystick,1.0/5.0);
+}
+
+
+int main()
+{
+ lcd.init();
+ startUpMenu();
+ resetButton.mode(PullDown);
+ startButton.mode(PullDown);
+ button.mode(PullDown);
startButton.rise(&startButtonPressed);
resetButton.rise(&resetButtonPressed);
- // startGame.attach(&startButtonPressed,10);
-
+ button.rise(&pauseButtonPressed);
+serial.printf("starting");
while(1) {
- if (gamePlaying==0){
- checkSelectedDifficulty();
+ if (gamePlaying==0) {
+ checkSelectedDifficulty();
+ serial.printf("check difficulty loop");
+ }
+
+ else if (gamePlaying==1) {
+ lcd.clear();
+ lcd.normalMode(); // normal colour mode
+ Boundary();
+
+ pollJoystick.detach();
+ startGame.attach(&updateGameISR,gameSpeed);
+ startingSnake();
+ randomiseFood();
+ if (length <= 14) // if string will fit on display
+ lcd.printString(buffer,0,0);
+ // lcd.drawRect(0,0,83,7,0);
+ lcd.refresh();
+ serial.printf("gameplaying=1 game init");
+
+ //init game start time back food
+ while (1) {
+ serial.printf("enter game loop");
+ if(updateGameFlag==1) {
+ //updateJoystick();
+ updateGameFlag=0;
+ updateJoystick();
+ // lcd.clearPixel(snakeX[0],snakeY[0]);
+ // updateSnakeDirection();
+ updateSnakeArray();
+ for (int i=0; i<snakeX.size(); i++) {
+ lcd.drawRect(snakeX[i],snakeY[i],1,1,1);
+ // lcd.setPixel(snakeX[i],snakeY[i]);
+
+
+ }
+ lcd.refresh();
+ previousDirection=joystick.direction;
+
+ checkForFood();
+ checkForCollision();
+
+ for (int i=0; i<snakeX.size()-1; i++) {
+ checkForCollisionWithSelf(i);
+ }
+
+
+ //serial.printf("%d",snakeX.size());
+ // printVectorContent();
+
+ }
+
+ }
+
+ }
}
- else if (gamePlaying==1){
- lcd.clear();
- lcd.normalMode(); // normal colour mode
- Boundary();
- snakeX[0]=21;
- snakeX[1]=22;
- snakeX[2]=23;
- snakeX[3]=24;
- snakeX[4]=25;
- pollJoystick.detach();
- startGame.attach(&updateGameISR,0.1);
- startingSnake();
- randomiseFood();
- lcd.refresh();
-
- //init game start time back food
- while (1){
- if(updateGameFlag==1){
- //updateJoystick();
- updateGameFlag=0;
- updateJoystick();
- // lcd.clearPixel(snakeX[0],snakeY[0]);
- // updateSnakeDirection();
- updateSnakeArray();
- for (int i=0;i<snakeX.size();i++){
- // lcd.drawRect(snakeX[i],snakeY[i],1,1,1);
- lcd.setPixel(snakeX[i],snakeY[i]);
- }
- lcd.refresh();
- previousDirection=joystick.direction;
-
- checkForCollision();
- checkForFood();
-
-
- //serial.printf("%d",snakeX.size());
- // printVectorContent();
-
- }
-
- }
-
- }
- }
-
-
+
+
}
\ No newline at end of file