Dominic Platt
Code for the space evader game.
Dependencies: N5110 PowerControl mbed
main.cpp
- Committer:
- domplatypus
- Date:
- 2015-05-11
- Revision:
- 1:225522d0dd77
- Parent:
- 0:dd6685f1343e
File content as of revision 1:225522d0dd77:
/**
@file main.cpp
@brief Header file containing functions prototypes, defines and global variables.
@brief Main code for the running of the game with external libraries of the joystick and the lcd screen
@author Dominic J. Platt
@date April 2015
*/
#include "mbed.h"
#include "main.h"
#include "N5110.h" //importing Craig Evans library for LCD pixel manipulation functions
#include "joystick.h" //external joystick files defined for simplification within the main file
//external variables printFlag,joystick,pollJoystick,serial and button used
//button(p18),xPot(p19),yPot(p20) used with external joystick
#include "PowerControl/PowerControl.h"
#include "PowerControl/EthernetPowerControl.h"
int main()
{
init();
void PHY_PowerDown(); //powerdown the ethernet interface on the Mbed system
int counter = 0;//counter to count through the timer loops
introInit();
timer.attach(&timerExpired,0.01);
while(1) {
if(timerFlag) {
timerFlag = 0;
if(soundOn) {
soundActivate(); //activates sound
}
if(menuMode) {
if(counter==20) {
menuSet();//runs the menu every 20 counts
}
} else if(gameOverMode) {
//game over mode
if(counter==20) {
gameOverSet();//sets the game over frame every 20 counts
}
if(soundOn) {
soundActivate(); //acitvates sound
}
} else if(introMode) {
introSet(); //sets the intro frame every count
timer.detach();
timer.attach(&timerExpired,0.01); //attaching the timer for the next frame
} else if(helpMode) {
if(buttonFlag) {
menuInit(); //if button pressed go back to the menu
}
buttonFlag = 0;
}
else if(highScoreMode) {
if(counter==20) {
if(buttonFlag) {
menuInit(); //if button pressed bring player back to menu
}
}
} else if(settingsMode) { //runs settingsMode
if(counter==20) {
settingsSet();//runs the setting frame
}
} else if(gameMode) { //game run mode
if(roundFlag) {
//if new round flag is set start the next round
roundFlag =0;
roundInit();
}
if(item.active) {
item.addSelf();//if item has selected add the item to the screen
}
if(speedState==0) {
//controlling the rate of movement of the players ship and asteroids depending on the speedState
if(counter == 5||counter == 10||counter == 15||counter == 20) {// speed x1.0
if(shipExplodeFlag) {
shipExplode();//if is in explotion stage play explotion frame
} else {
//otherwise move the ship
ship.moveSelf(joystick.direction[0],joystick.direction[1]);
}
for(int i=0; i<8; i++) {
if(asteroid[i].active) {
//move the asteroids that are active
asteroid[i].moveSelf();
}
}
}
} else if(speedState==1) {// x1.25
if(counter == 4||counter == 8||counter == 12||counter == 16||counter == 20) {
if(shipExplodeFlag) {
shipExplode();
} else {
ship.moveSelf(joystick.direction[0],joystick.direction[1]);
}
for(int i=0; i<8; i++) {
if(asteroid[i].active) {
asteroid[i].moveSelf();
}
}
}
} else if(speedState==2) { //x1.33
if(counter == 3||counter == 6||counter == 9||counter == 12||counter == 15||counter == 18||counter == 20) {
if(shipExplodeFlag) {
shipExplode();
} else {
ship.moveSelf(joystick.direction[0],joystick.direction[1]);
}
for(int i=0; i<8; i++) {
if(asteroid[i].active) {
asteroid[i].moveSelf();
}
}
}
} else if(speedState==3) { //x2.5
if(counter == 2||counter == 4||counter == 6||counter == 8||counter == 10||counter == 12||counter == 14||counter == 16||counter == 18||counter == 20) {
if(shipExplodeFlag) {
shipExplode();
} else {
ship.moveSelf(joystick.direction[0],joystick.direction[1]);
}
for(int i=0; i<8; i++) {
if(asteroid[i].active) {
asteroid[i].moveSelf();
}
}
}
}
if(buttonFlag&laserClear) { // fire button pressed
laserActivate();
}
buttonFlag = 0; //reset the buttonFlag after everytime used
laserMove(); //move the laser depending on that which are active
check(); //checks the logic of the ships position against asteroids, asteroids against each other and walls, lasers against asteroids
if(counter ==3||counter == 6|| counter ==9||counter == 12||counter == 15||counter == 18||counter == 20) {
setScreen(); // refresh the screen once every three 'counts'
}
}
if(counter == 20) {
counter=0;//reset the counter
}
counter++;
}
sleep();// put the mbed to sleep otherwise
}
}
void setScreen()
{
for(int i = 0; i<84; i++) {
for(int j = 0; j<48; j++) { //loop through each element of the array
if(!(cellsCurrent==cellsBuffer)) {//if the currentCell element does not equal to the previous cell element update the display
if (cellsCurrent[j][i] == 1) {
lcd.setPixel(i,j); //set pixel if 1
} else {
lcd.clearPixel(i,j); //clear pixel otherwise
}
cellsBuffer[j][i] = cellsCurrent[j][i]; //update the bufferArray
}
}
}
lcd.refresh(); //refreshing the screen for the new display
}
void init()
{
lcd.init();
debounce.start(); //start the debounce timer
buttonFlag =0;
walls = 0; // variable to declare whether asteroids can pass through walls
settingsMode =0;
speedState = 0;
roundNumber = 1;
asteroids = 0;
directionMatrix[0] = -1; // the two available matrices for our asteroids direction
directionMatrix[1] = 1;
//declares when the player is able to shoot again
laserClear = 1;
//counter to count how long a laser has been active for
laserCounter = 0;
timerFlag = 0; //timer intially 0
laserCoolDown = 70;
rapidFire = 0;
abilityCounter = 0;
optionSelected = 0;
introMode = 1;
lcd.init();
srand(time(NULL));//seedin the random function with the current time for more random functions
joystickButton.rise(&buttonPressed); //function called when button is pressed
serialTime.attach(&serialISR); //function called when string is sent to the mded
calibrateJoystick(); //joystick must remain still during this stage
pollJoystick.attach(&updateJoystick,1.0/10.0); //joystick checked every 10 s
lcd.setBrightness(1.0);//set the brightness to maximum as sound interfere's with each other
}
void clearArray()
{
//clears the 'master' cell array so that all the pixels are nil
for(int i = 0; i<48; i++) {
for(int j = 0; j<84; j++) {
cellsCurrent[i][j] =0;
}
}
}
void initSound()
{
if(sound) {
soundOn = 1;
soundCounter = 0;
buzzer = 0.01;
}
}
void soundActivate()
{
if(sound) {
buzzer = 0.01;
if(soundCounter>19) {
soundOn = 0;
soundCounter = 0;
buzzer = 0;
//sets the sound according to which soundType is active
} else if(soundType ==1) {
buzzer.period(1/(frequency[soundCounter]));//cycles through the frequency elements to produce a increasing frequency sound
soundCounter++;
} else if(soundType ==2) {
buzzer.period(1/(frequency[19-soundCounter]));//moves backwards through the frequency elements to produce a decreasing frequency sound
soundCounter = soundCounter+2;
} else if(soundType ==3) {
buzzer.period(0.005);//high frequency sound when asteroids bounce off one another
soundCounter = soundCounter+10;
} else if(soundType ==4) {
buzzer.period(1/(frequency[19-soundCounter]));
soundCounter = soundCounter+1;
}
}
}
void iDSet()
{
FILE *fp = fopen("/local/Highscores.csv", "r"); // open file for reading
char stringBuff[100]; //creating our stringBuff to hold the characters read from the file
if (fp == NULL) {//if file cannot be opened
perror ("Error opening file");
for(int i = 0; i<5; i++) {
iD[i].active = 0; //deactivate the iD classes
}
return;
} else {
if ( fgets (stringBuff , 100 , fp) != NULL )
puts (stringBuff); //sets the stringBuff to hold the characters of the fike
fclose (fp);
}
int k = 0; //integer represents which char in the file the program is at
for(int i=0; i<5 ; i++) { // 5 for loop to loop through all 5 iD objects
if(stringBuff[k]=='*') {
return; //exit loop when it reaches a '*' which is set to signify the end of the file
}
for(int j = 0; j<3; j++) {
iD[i].name[j] = stringBuff[k];//3 characters of the string buff set to the iD
k++;//increment counter
}
int scoreInt[5];//holds each digit of the score
for(int j=0; j<5; j++) {
scoreInt[j] = 0; // setting these elements to nil
}
k++;//increment counter as current character will be a ','
int count = 0;//count to count how many digits the score has
for(int j = 0; (!(stringBuff[k]==',')); j++) { // loop while not at character ','
scoreInt[j] = stringBuff[k]- '0';//setting the score digit to be the number selected
k++;//increment counter
count = j;
}
//sets the score according to the digits obtained and the number of digits
if(count ==1) {
iD[i].score = scoreInt[0]*10;
} else if(count==2) {
iD[i].score = scoreInt[0]*100+scoreInt[1]*10;
} else if(count==3) {
iD[i].score = scoreInt[0]*1000+scoreInt[1]*100+scoreInt[2]*10;
} else if(count ==4) {
iD[i].score = scoreInt[0]*10000+scoreInt[1]*1000+scoreInt[2]*100+scoreInt[3]*10;
} else if(count ==5) {
iD[i].score = scoreInt[0]*100000+scoreInt[1]*10000+scoreInt[2]*1000+scoreInt[3]*100+scoreInt[4]*10;
}
k++;//increment counter
for(int j = 0; (!(stringBuff[k]==',')); j++) {//for loop while character is not a ','
iD[i].date[j] = stringBuff[k]; // sets the data characters
k++;
}
k++;
iD[i].active = 1; // iD is now active
if(stringBuff[k]=='*') {
i=5; //exit loop when '*' is reached
}
}
}
void writeDataToFile(int score,char n1, char n2, char n3)
{
//code idea from http://www.cplusplus.com/reference/cstdio/fgets/
ID playerBuff; //ID object created to hold the players attributes to write into the file
playerBuff.score = score;
playerBuff.active = 1;
sprintf(playerBuff.name,"%c%c%c",n1,n2,n3);
time_t seconds = time(NULL); // get current time
//format time into a string (time and date)
strftime(playerBuff.date,6,"%b", localtime(&seconds));
iDSet();//gets the current players ID from the file
for(int i = 0; i<5; i++) {
//organises the current players score against the other one and shifts all iDs below downwards
if(playerBuff.score>iD[i].score) {
if(i<4) {
iD[4] = iD[3];
}
if(i<3) {
iD[3] = iD[2];
}
if(i<2) {
iD[2] = iD[1];
}
if(i<1) {
iD[1] = iD[0];
}
iD[i] = playerBuff;
i=5; //exit for loop
}
}
remove( "/local/Highscores.csv" ); //deletes the existing file
FILE *fp0 = fopen("/local/Highscores.csv", "a"); // open 'log.csv' (excel file) for appending
// creates a new file
for(int i = 0; i<5; i++) {
if(iD[i].active) { // writes the currents players iD into the file with a ',' to seperate the attributes
fprintf(fp0,"%c%c%c,%d,%s,",iD[i].name[0],iD[i].name[1],iD[i].name[2],iD[i].score,iD[i].date); // print string to file "," represents break between name and score "/" represents a new line
}
}
//writes a '*' to signify the end of the data
fprintf(fp0,"*");//marks the end of the file
fclose(fp0); // close file
}
void writeID()
{
lcd.clear();
//prints the column names
lcd.printString("Name",0,0);
lcd.printString("Score",26,0);
lcd.printString("Date",56,0);
//assigns the players iD from the flash drive
iDSet();
for(int i = 0; i<5; i++) {
//printing each repective ID on the screen
if(iD[i].active) { //only if the ID is active do we want to display this
char nameString[3];
char scoreString[5];
sprintf(scoreString,"%d",iD[i].score);
sprintf(nameString,"%c%c%c",iD[i].name[0],iD[i].name[1],iD[i].name[2]);
lcd.printString(nameString,0,i+1);
lcd.printString(scoreString,26,i+1);
lcd.printString(iD[i].date,56,i+1);
}
}
}
void initSpawn()
{
int count = 0;
//defining the spawnLocations matrix
for(int j = 0; j<4; j++) {
for(int i= 0 ; i<8; i++) {
if(i==7||i==0||j==0||j==3) {
//defining the spawn locations to be along the borders of the screen
spawnLocation[count][0] = i*10;
spawnLocation[count][1] = j*10;
if(j==3) {
spawnLocation[count][1] = 42;
}
spawnLocation[count][2] = 1;
count++;
}
}
}
if(ship.position[1]<10) {
int x = ship.position[0]/10;
spawnLocation[x][2] = 0; // not available
}
if((ship.position[1]>30)) {
int x = ship.position[0]/10;
spawnLocation[x+12][2] = 0;
if(!((x+11)==11)) {
spawnLocation[x+11][2] = 0;
}
if(!((x+13)==20)) {
spawnLocation[x+13][2] = 0;
}
}
if(ship.position[0]<10) {
int x = ship.position[1]/10;
if(x==0) {
spawnLocation[0][2] = 0;
}
if(x==1) {
spawnLocation[8][2] = 0;
}
if(x==2) {
spawnLocation[10][2] = 0;
}
if(x==3) {
spawnLocation[12][2] = 0;
}
}
if(ship.position[0]>74) {
int x = ship.position[1]/10;
if(x==0) {
spawnLocation[7][2] = 0;
}
if(x==1) {
spawnLocation[9][2] = 0;
}
if(x==2) {
spawnLocation[11][2] = 0;
}
if(x==3) {
spawnLocation[19][2] = 0;
}
}
}
int getSpawnLocation()
{
while(1) {//while loop continues until function produces a return
int x = rand() % 20; // produces a random number 0 to 19
if(spawnLocation[x][2]) {
//if position is available
spawnLocation[x][2] = 0;//position no longer available
return x;//position is no longer availables
}
}
}
void timerExpired()
{
// timer function to control the frame rate, enemy speed, ship speed, laser speed
timerFlag = 1; //turn flag on
}
Laser laserInit() //function to create a laser class with x y position sent
{
Laser laser; //laser object created of the Laser class
laser.active = 0; // laser is not active
laser.counterFlag = 0;
for(int i =0; i< 5; i++) {
laser.shape[i] = 1; // defining the laser matrix
}
return laser; //returning the laser class
}
void gameOverInit()
{
//initialises variables for the gameOver screen
cSelected =0;
c1 =0;
c2 = 0;
c3 = 0;
gameMode = 0;
gameOverMode =1;
menuMode = 0;
lcd.clear();
buttonFlag = 0;
timer.detach();
timer.attach(&timerExpired,0.01);
}
void check()
{
//ship position check against asteroids
for (int j = 0; j<8; j++) {
//loops through every asteroid
if((((asteroid[j].position[0])>(ship.position[0]-5))&((asteroid[j].position[0])<(ship.position[0]+5))
&((asteroid[j].position[1])>(ship.position[1]-5))&((asteroid[j].position[1])<(ship.position[1]+5)))&asteroid[j].active) {
//if an asteroid overlaps with a ships position
if(ship.shield) {//if ship shields are up
asteroid[j].active = 0;
asteroid[j].deleteSelf(); //deactivating the asteroid
asteroids--;
if(score>50) {//player looses 50 points
score = score - 50;
} else {
score = 0;
}
ship.shield =0; //shields are deactivated
ship.shieldUpdate();//updates the players shield state
initSound();
soundType =3;
} else if((!shipExplodeFlag)&!ship.shield) {
shipExplodeFlag = 1;
explotionStage = 1;
asteroid[j].active = 0;
asteroid[j].deleteSelf();
initSound();
soundType =2;
}
}
}
// checking the asteroids position off each other so they can bounce off each other
for(int i = 0; i<8; i++) {
if(asteroid[i].active) { //looping through all the active asteroids
for(int j = 0; j<8; j++) {
if(i==j) { //if asteroid checked is the actual asteroid of the first for loop move to the next one
j++;
}
if(asteroid[j].active) {
if((asteroid[i].position[0]>(asteroid[j].position[0]-5))&(asteroid[i].position[0]<(asteroid[j].position[0]+5))
&(asteroid[i].position[1]>(asteroid[j].position[1]-5))&(asteroid[i].position[1]<(asteroid[j].position[1]+5))) {
// if asteroids collide
initSound();
soundType =3;// produce a sound
if(asteroid[i].position[0]>asteroid[j].position[0]) {//if asteroids x position is greater than the other move forwards
asteroid[i].xDirection = 1;
} else if(asteroid[i].position[0]<=asteroid[j].position[0]) { //if asteroid is behind the other asteroid in the x direction move to the left
asteroid[i].xDirection = -1;
}
if(asteroid[i].position[1]>asteroid[j].position[1]) {//if asteroid is below the other asteroid move down
asteroid[i].yDirection = 1;
} else if(asteroid[i].position[1]<=asteroid[j].position[1])//if asteroid is above the other asteroid move up
asteroid[i].yDirection = -1;
}
}
}
}
}
//checking the laser positions against the asteroids
for(int i = 0; i<4; i++) {
for (int j = 0; j<8; j++) {
if(((asteroid[j].position[0]>(laser[i].position[0]-5))&(asteroid[j].position[0]<(laser[i].position[0]+5))
&(asteroid[j].position[1]>(laser[i].position[1]-5))&(asteroid[j].position[1]<(laser[i].position[1]+5))&asteroid[j].active&laser[i].active)) {
//if both laser and asteroid is active and they collide inititiate destruction
initSound();
soundType =2;//play sound
asteroid[j].active = 0;
asteroid[j].deleteSelf(); //deactivating the asteroid
asteroids--;//marking one less asteroid
score = score + 10;//player gains point
laser[i].active = 0; // deactiviating the laser
laser[i].deleteSelf();
if(!(item.active||rapidFire)) {
int x = rand() %7; // 1 in 7 chance of an item drop
if(x==0) {
//puts the item to the asteroids position
item.active = 1;
item.position[0] = asteroid[j].position[0];
item.position[1] = asteroid[j].position[1];
item.addSelf();
}
}
}
}
}
if(asteroids == 0) {
//new round when all asteroids are destroyed
roundFlag = 1;
}
if(rapidFire) {
//rapidFire enabled when user touches item
if(abilityCounter>1000) { //if the ability counter exceeds a certain number
rapidFire=0;//deactivate rapidFire
laserCoolDown = 70; //laser fire cool down set to normal
} else {
abilityCounter++; //increment counter
}
}
if((((item.position[0])>(ship.position[0]-5))&((item.position[0])<(ship.position[0]+5))
&((item.position[1])>(ship.position[1]-5))&((item.position[1])<(ship.position[1]+5)))&item.active) {
//if ship collides with the item
//sets the laserCoolDown to be much lower for rapidFire
laserCoolDown = 22;
item.active = 0; //deactivate and remove the item from the matrix
item.deleteSelf();
rapidFire = 1;
abilityCounter = 0;//initiates counter
}
}
void laserActivate()
{
laserClear = 0; // laser is not clear to fire
if(!laser[0].active) {//if laser is not active activate this laser object
laser[0].position[0] = ship.position[0] + 5;
laser[0].position[1] = ship.position[1] + 2;//set the lasers position and activate
laser[0].active =1; //laser is now active
laser[0].counterFlag = 1;
} else if(!laser[1].active) {
laser[1].position[0] = ship.position[0] +5;
laser[1].position[1] = ship.position[1] +2;
laser[1].active = 1;
laser[1].counterFlag = 1;
} else if(!laser[2].active) {
laser[2].position[0] = ship.position[0]+5;
laser[2].position[1] = ship.position[1]+2;
laser[2].active = 1;
laser[2].counterFlag = 1;
} else if(!laser[3].active) {
laser[3].position[0] = ship.position[0]+5;
laser[3].position[1] = ship.position[1]+2;
laser[3].active = 1;
laser[3].counterFlag = 1;
}
initSound();//initiate laser sound
soundType =1;
}
void laserMove()
{
//moves the laser if it is active
if(laser[0].active) {
laser[0].moveSelf(1);
}
if(laser[1].active) {
laser[1].moveSelf(1);
}
if(laser[2].active) {
laser[2].moveSelf(1);
}
if(laser[3].active) {
laser[3].moveSelf(1);
}
//if laser counterFlag is set, increment the laser Counter
if(laser[0].counterFlag||laser[1].counterFlag||laser[2].counterFlag||laser[3].counterFlag) {
//if the laserCounter exceeds the cooldown limit laser is clear to fire
if(laserCounter>laserCoolDown) {
laserCounter = 0;
laserClear = 1;
laser[0].counterFlag = 0;
laser[1].counterFlag = 0;
laser[2].counterFlag = 0;
laser[3].counterFlag = 0;
}
laserCounter++;
}
}
void gameStart()
{
for(int i = 0; i<8; i++) {
asteroid[i].active = 0;
}
item.active = 0;
clearArray();
asteroids = 0;
roundNumber = 1;
score = 0;
menuMode =0;
gameMode =1;
highScoreMode = 0;
lcd.clear();
clearArray();
ship.init();
ship.addSelf();
item.init();
roundFlag = 1;
gameMode = 1;
buttonFlag =0;
shipExplodeFlag = 0;
timer.detach();
timer.attach(&timerExpired,0.005);
}
void highScoreSet()
{
menuMode = 0;
gameMode = 0;
introMode = 0;
highScoreMode = 1;
gameOverMode = 0;
iDSet();
writeID();
timer.detach();
timer.attach(&timerExpired,0.01);
}
void menuSet()
{
//sets the option selected depending on the joystick y direction
optionSelected = optionSelected + joystick.direction[1];
//loops around the menu
if(optionSelected>3) {
optionSelected = 0;
} else if(optionSelected<0) {
optionSelected = 3;
}
if((joystick.direction[1]==1)||(joystick.direction[1]==-1)) {
//if joystick moved initiate sound
soundType =3;
initSound();
}
lcd.clear();
for(int i = 0; i<84; i++) {
cellsCurrent[8][i] = 1;//draws a line under the title
}
ship.addSelf(); // adds the ship as a logo to the screen
setScreen(); // sets the screen
lcd.printString("Space Evader",0,0); //text overlayed on the screen
lcd.printString("Start Game",10,2);
lcd.printString("HighScores",10,3);
lcd.printString("Help",10,4);
lcd.printString("Settings",10,5);
lcd.printString(">",0,optionSelected+2); // array set according to which optionSelected
if(buttonFlag&(optionSelected == 0)) {
//start option selected
gameStart();
} else if(buttonFlag&(optionSelected == 1)) {
//instruction option selected
highScoreSet();
} else if(buttonFlag&(optionSelected == 2)) {
//instruction option selected
helpInit();
} else if(buttonFlag&(optionSelected == 3)) {
//settings option selected
settingsInit();
}
//setting the buttonFlag off so it is not set again until the joystick is pressed
buttonFlag = 0;
}
void gameOverSet()
{
if((joystick.direction[0]==1)||(joystick.direction[0]==-1)||(joystick.direction[1]==1)||(joystick.direction[1]==-1)) {
//sound activate when joystick moved
initSound();
soundType =3;
}
char scoreString[10]; //stores the score
sprintf(scoreString,"%d",score);//converts the users score from an int to a string
////http://developer.mbed.org/questions/249/float-or-integer-to-char-or-string-conve/
char alphabet [27] = {"ABCDEFGHIJKLMNOPQRSTUVWXYZ"}; //alphabet matrix defined
cSelected = cSelected +joystick.direction[0]; //character selected moved depending on the joystick
if(cSelected>2) { //loops through the characters selected at the boundaries
cSelected = 0;
} else if(cSelected <0) {
cSelected = 2;
}//sets the character selected depending to the one chosen
if(cSelected ==0) {
c1 = c1+ joystick.direction[1];
if(c1>25) {
c1 = 0;
}
if(c1<0) {
c1 = 25;
}
}
if(cSelected ==1) {
c2 = c2+joystick.direction[1];
if(c2>25) {
c2 = 0;
}
if(c2<0) {
c2 = 25;
}
}
if(cSelected ==2) {
c3 = c3 + joystick.direction[1];
if(c3>25) {
c3 = 0;
}
if(c3<0) {
c3 = 25;
}
}
char name[3];
//converts the name chars into a string
sprintf(name,"%c%c%c",alphabet[c1],alphabet[c2],alphabet[c3]);
lcd.clear();
//sets the characters
lcd.printString("Game Over",10,0);
lcd.printString("Your score was",0,1);
lcd.printString(scoreString,35,2);
lcd.printString(name,35,4);
for(int i = 0; i<5; i++) {
///draws a line under the selected char
lcd.setPixel(35+i+cSelected*6,40);
}
lcd.refresh();
if(buttonFlag) {
//if button is pressed write the players ID to the drive
writeDataToFile(score,alphabet[c1],alphabet[c2],alphabet[c3]);
//open the menu
menuInit();
}
//reset flag
buttonFlag = 0;
}
void helpInit()
{
//clear the array
clearArray();
//clear the lcd
lcd.clear();
//initialise the spawn position, although spawn positions are not needed this function is required to initialise an asteroid object
initSpawn();
ship.init();
asteroid[0].init();
item.init();
menuMode = 0;
gameOverMode = 0;
helpMode =1;
gameOverMode =0;
highScoreMode =0;
//adding the asteroid, ship and item objects to the screen
ship.position[0] = 0;
ship.position[1] = 0;
ship.addSelf();
ship.shield = 0;
ship.shieldUpdate();
ship.position[0] = 0;
ship.position[1] = 8;
ship.addSelf();
asteroid[0].position[0] = 0;
asteroid[0].position[1] = 16;
asteroid[0].addSelf();
item.position[0] = 0;
item.position[1] = 24;
item.addSelf();
setScreen();//setting the matrix
lcd.printString("Player ship",10,0); //adding text to label the objects
lcd.printString("Vulnerable",10,1);
lcd.printString("Asteroid",10,2);
lcd.printString("Rapid fire",10,3);
lcd.printString("Avoid and kill",0,4);
lcd.printString("the asteroids",0,5);
timer.detach();
timer.attach(&timerExpired,0.01);
}
void menuInit()
{
clearArray();
ship.init();
ship.position[0] = 75;
ship.position[1] = 2;
ship.addSelf();
setScreen();
settingsMode = 0;
gameOverMode = 0;
gameMode = 0;
menuMode = 1;
introMode = 0;
helpMode = 0;
buttonFlag =0;
timer.detach();
timer.attach(&timerExpired,0.01);
}
void introInit()
{
introCounter= 0;
introMode =1;
settingsMode = 0;
gameOverMode = 0;
gameMode = 0;
menuMode = 0;
helpMode = 0;
buttonFlag = 0;
timer.detach();
timer.attach(&timerExpired,0.01);
}
void introSet() //intro mode frame set
{
if(introCounter<=100) {
//play this for first 100 frames
lcd.printString("Dominic Platt",0,0);
lcd.printString("Presents...",12,1);
}
if(introCounter==100) {
//initialise and set ship
ship.init();
ship.position[0] = 0;
ship.position[1] =34;
ship.addSelf();
}
if(introCounter>100&introCounter<180) {
//move ship for next 80 frames
ship.moveSelf(1,0);
setScreen();
lcd.printString("Space Evader",5,0);
}
if(introCounter==180||buttonFlag) { // if timer up or button pressed
//starts menu
ship.deleteSelf();
menuInit();
}
introCounter++; //introCounter
}
void roundInit()
{
//initialises a round
if(roundNumber>8) {
roundNumber = 1; // reset the roundNumber
if(speedState<4) {
speedState++;//increases the speed of the game if it hasn't exceeded its max value
}
ship.shield=1; // regenerate shields when new round initiates
ship.shieldUpdate();
}
initSpawn(); // initialises spawn positions
for(int i = 0; i<roundNumber; i++) {
asteroid[i].init();//initiates asteroids equal to the round number
asteroid[i].active = 1;
asteroids++; // add one to the counter
}
roundNumber++; //increment roundNumber
}
void shipExplode()
{
//sets the explotionn frame of the ship
ship.destroySelf(explotionStage);
explotionStage++;//increment the explotionStage
if(explotionStage>12) {
//explotion finished gameOverScreenSet
shipExplodeFlag = 0;
gameOverInit();
}
}
void settingsSet()
{
//sets the title selected with the joystick
optionSelected = optionSelected + joystick.direction[1];
if(optionSelected>3) {
optionSelected = 0;
} else if(optionSelected<0) {
optionSelected = 3;
}
if((joystick.direction[1]==1)||(joystick.direction[1]==-1)) {
soundType =3; //sound when joystick moved
initSound();
}
lcd.clear();
lcd.printString("Sound",7,0);
lcd.printString("On",45,0);
lcd.printString("Off",65,0);
if(sound) {//sets the marker depending on whether sound is on or not
lcd.printString(" ",59,0);
lcd.printString("-",39,0);
} else {
lcd.printString(" ",39,0);
lcd.printString("-",59,0);
}
lcd.printString("Speed",7,1);
char myChar[8];
sprintf(myChar,"%dx",1+speedState); //speed marked
lcd.printString(myChar,60,1);
lcd.printString("Walls",7,2);
lcd.printString(">",0,optionSelected); //selector depending on option selected
char bufferDate[14]; //presents the time and date
char bufferTime[14];
lcd.printString("Back",7,3);
time_t seconds = time(NULL); // get current time
//format time into a string (time and date)
strftime(bufferDate,14,"%D", localtime(&seconds));
strftime(bufferTime,14,"%T", localtime(&seconds));
lcd.printString(bufferDate,7,4);
lcd.printString(bufferTime,7,5);
if(buttonFlag&(optionSelected == 0)) {
sound = !sound;
} else if(buttonFlag&(optionSelected == 1)) {
//increments the speed counter if that option is selected
speedState++;
if(speedState>3) {
//reset speedState if to high
speedState=0;
}
} else if(buttonFlag&(optionSelected == 3)) {
//back to menu
menuInit();
} else if(buttonFlag&(optionSelected == 2)) {
//turn on/off the walls
walls = !walls;
}
if(walls) {//presents whether the walls are active
lcd.printString("On",50,2);
} else {
lcd.printString("Off",50,2);
}
//reset the button flag
buttonFlag = 0;
}
void settingsInit()
{
//initialises the setting screen
menuMode = 0;
settingsMode = 1;
optionSelected = 0;
buttonFlag =0;
settingsSet();
timer.detach();
timer.attach(&timerExpired,0.01);
}
void serialISR()
{
//sets UNIX time
set_time(1431348000);
}
void buttonPressed() // toggle direction in ISR
{
if(debounce.read_ms()>200) {//only set flag 200 ms after the last flag was set to filter out the 'bounces'
//buttonFlag set when button is pressed
buttonFlag = 1;
debounce.reset();//reset the debounce timer
}
}