Zhe Cheng Lee / Mbed 2 deprecated SpaceInvadersFINAL

A reproduction of the 70's classic. Enjoy!

Dependencies:   NokiaLCD SDFileSystem SIgame mbed-rtos mbed wave_player

main.cpp@3:18850aaf105c, 2013-03-07 (annotated)

Committer:
zlee9
Date:
Thu Mar 07 22:53:15 2013 +0000
Revision:
3:18850aaf105c
Parent:
1:02e3c9b77580 
laser collisions and game ending when any alien actually touches screen border

Who changed what in which revision?

UserRevisionLine numberNew contents of line
zlee9 0:fcfeec8463fa 1 /***************************************************************/
zlee9 0:fcfeec8463fa 2 /***************************************************************/
zlee9 0:fcfeec8463fa 3 /*** ***/
zlee9 0:fcfeec8463fa 4 /*** Space Invaders Simulator ***/
zlee9 0:fcfeec8463fa 5 /*** ***/
zlee9 0:fcfeec8463fa 6 /*** ECE 4180 Developer Team: Space Pirates ***/
zlee9 0:fcfeec8463fa 7 /*** Members: David Gaspard, Zhe Cheng Lee ***/
zlee9 0:fcfeec8463fa 8 /*** ***/
zlee9 0:fcfeec8463fa 9 /***************************************************************/
zlee9 0:fcfeec8463fa 10 /***************************************************************/
zlee9 0:fcfeec8463fa 11
zlee9 0:fcfeec8463fa 12
zlee9 0:fcfeec8463fa 13 /***************************************************************/
zlee9 0:fcfeec8463fa 14 /* */
zlee9 0:fcfeec8463fa 15 /* Libaries */
zlee9 0:fcfeec8463fa 16 /* */
zlee9 0:fcfeec8463fa 17 /***************************************************************/
zlee9 0:fcfeec8463fa 18 #include "mbed.h"
zlee9 0:fcfeec8463fa 19 #include "NokiaLCD.h"
zlee9 0:fcfeec8463fa 20 #include "SIgame.h"
zlee9 0:fcfeec8463fa 21 #include "rtos.h"
zlee9 0:fcfeec8463fa 22 #include "SDFileSystem.h"
zlee9 0:fcfeec8463fa 23 #include "wave_player.h"
zlee9 0:fcfeec8463fa 24
zlee9 0:fcfeec8463fa 25 /***************************************************************/
zlee9 0:fcfeec8463fa 26 /* */
zlee9 0:fcfeec8463fa 27 /* Classes and Global Variables */
zlee9 0:fcfeec8463fa 28 /* */
zlee9 0:fcfeec8463fa 29 /***************************************************************/
zlee9 0:fcfeec8463fa 30 NokiaLCD lcd(p5, p7, p8, p9, NokiaLCD::LCD6610); // mosi, sclk, cs, rst, type
zlee9 0:fcfeec8463fa 31 DigitalIn button(p20); // Pushbutton for firing laser
zlee9 0:fcfeec8463fa 32 AnalogIn horiz(p15); // From joystick for steering ship
zlee9 0:fcfeec8463fa 33 SDFileSystem sd(p11, p12, p13, p14, "sd"); //SD card
zlee9 0:fcfeec8463fa 34 AnalogOut DACout(p18);//Speaker out
zlee9 0:fcfeec8463fa 35 wave_player waver(&DACout);//Wave player
zlee9 0:fcfeec8463fa 36
zlee9 0:fcfeec8463fa 37 int state;
zlee9 0:fcfeec8463fa 38 int doneski;//done playing start music?
zlee9 0:fcfeec8463fa 39
zlee9 0:fcfeec8463fa 40 OBJECT wave[NUM_ALIEN_ROWS][NUM_ALIEN_COLS],
zlee9 0:fcfeec8463fa 41 wave_old[NUM_ALIEN_ROWS][NUM_ALIEN_COLS];
zlee9 0:fcfeec8463fa 42
zlee9 0:fcfeec8463fa 43 /***************************************************************/
zlee9 0:fcfeec8463fa 44 /* */
zlee9 0:fcfeec8463fa 45 /* Prototypes */
zlee9 0:fcfeec8463fa 46 /* */
zlee9 0:fcfeec8463fa 47 /***************************************************************/
zlee9 0:fcfeec8463fa 48 void start();
zlee9 0:fcfeec8463fa 49 int game();
zlee9 0:fcfeec8463fa 50 void lose();
zlee9 0:fcfeec8463fa 51 void win();
zlee9 0:fcfeec8463fa 52 void updateScreen(OBJECT ship, OBJECT ship_old, POINT ylaser, POINT ylaser_old,
zlee9 0:fcfeec8463fa 53 POINT elaser[], POINT elaser_old[], int lives_rem);
zlee9 0:fcfeec8463fa 54
zlee9 0:fcfeec8463fa 55 void playstart(void const *args);
zlee9 0:fcfeec8463fa 56 void startmusic(void const *args);
zlee9 0:fcfeec8463fa 57
zlee9 0:fcfeec8463fa 58
zlee9 0:fcfeec8463fa 59 /***************************************************************/
zlee9 0:fcfeec8463fa 60 /* */
zlee9 0:fcfeec8463fa 61 /* Main program */
zlee9 0:fcfeec8463fa 62 /* */
zlee9 0:fcfeec8463fa 63 /***************************************************************/
zlee9 0:fcfeec8463fa 64 int main()
zlee9 0:fcfeec8463fa 65 {
zlee9 0:fcfeec8463fa 66 doneski=0;//Variable to declare that start screen music thread
zlee9 0:fcfeec8463fa 67 //was terminated
zlee9 0:fcfeec8463fa 68 Thread thread(playstart);//Satrt the sound effect thread
zlee9 0:fcfeec8463fa 69 Thread startmu(startmusic);//start the trigger fire thread
zlee9 0:fcfeec8463fa 70 state = START;//Begin the game
zlee9 0:fcfeec8463fa 71 button.mode(PullUp);//Pull up the pushbutton
zlee9 0:fcfeec8463fa 72
zlee9 0:fcfeec8463fa 73 while (1) { // Game loop
zlee9 0:fcfeec8463fa 74 switch (state) {
zlee9 0:fcfeec8463fa 75 case START:
zlee9 0:fcfeec8463fa 76 start(); // Start game
zlee9 0:fcfeec8463fa 77 state = GAME;
zlee9 0:fcfeec8463fa 78 break;
zlee9 0:fcfeec8463fa 79
zlee9 0:fcfeec8463fa 80 case GAME:
zlee9 0:fcfeec8463fa 81 startmu.terminate();
zlee9 0:fcfeec8463fa 82 doneski=1;
zlee9 0:fcfeec8463fa 83 state = game(); // Actual game
zlee9 0:fcfeec8463fa 84 break;
zlee9 0:fcfeec8463fa 85
zlee9 0:fcfeec8463fa 86 case LOSE:
zlee9 0:fcfeec8463fa 87 lose(); // Losing screen
zlee9 0:fcfeec8463fa 88 state = START;
zlee9 0:fcfeec8463fa 89 break;
zlee9 0:fcfeec8463fa 90
zlee9 0:fcfeec8463fa 91 case WIN:
zlee9 0:fcfeec8463fa 92 win(); // Winning screen
zlee9 0:fcfeec8463fa 93 state = START;
zlee9 0:fcfeec8463fa 94 break;
zlee9 0:fcfeec8463fa 95 }
zlee9 0:fcfeec8463fa 96 }
zlee9 0:fcfeec8463fa 97 }
zlee9 0:fcfeec8463fa 98
zlee9 0:fcfeec8463fa 99
zlee9 0:fcfeec8463fa 100 /***************************************************************/
zlee9 0:fcfeec8463fa 101 /* */
zlee9 0:fcfeec8463fa 102 /* Game-State Procedures */
zlee9 0:fcfeec8463fa 103 /* */
zlee9 0:fcfeec8463fa 104 /***************************************************************/
zlee9 0:fcfeec8463fa 105 void start()
zlee9 0:fcfeec8463fa 106 {
zlee9 0:fcfeec8463fa 107 /******
zlee9 0:fcfeec8463fa 108 * start
zlee9 0:fcfeec8463fa 109 * Starts up game
zlee9 0:fcfeec8463fa 110 ******/
zlee9 0:fcfeec8463fa 111 lcd.cls();
zlee9 0:fcfeec8463fa 112 lcd.locate(0,4);
zlee9 0:fcfeec8463fa 113 lcd.printf("SPACE INVADERS");
zlee9 0:fcfeec8463fa 114 lcd.locate(0,10);
zlee9 0:fcfeec8463fa 115 lcd.printf("PRESS BUTTON TO CONTINUE");
zlee9 0:fcfeec8463fa 116 WAIT4FULLPUSH(button);
zlee9 0:fcfeec8463fa 117 }
zlee9 0:fcfeec8463fa 118
zlee9 0:fcfeec8463fa 119
zlee9 0:fcfeec8463fa 120 int game()
zlee9 0:fcfeec8463fa 121 {
zlee9 0:fcfeec8463fa 122 /******
zlee9 0:fcfeec8463fa 123 * game
zlee9 0:fcfeec8463fa 124 * Handles the main gameplay. Prepares for win state if player destroys all
zlee9 0:fcfeec8463fa 125 * aliens and lose state if player loses all lives
zlee9 0:fcfeec8463fa 126 ******/
zlee9 0:fcfeec8463fa 127 POINT ylaser, ylaser_old, elaser[ELASER_CAP], elaser_old[ELASER_CAP];
zlee9 0:fcfeec8463fa 128 OBJECT ship, ship_old, *sh_alien, *frontline[NUM_ALIEN_COLS];
zlee9 0:fcfeec8463fa 129 int time, lives_rem, als_rem, i;
zlee9 0:fcfeec8463fa 130 float hper;
zlee9 0:fcfeec8463fa 131 bool reach, left, lcancel;
zlee9 0:fcfeec8463fa 132
zlee9 0:fcfeec8463fa 133 // Set display screen
zlee9 0:fcfeec8463fa 134 lcd.cls();
zlee9 0:fcfeec8463fa 135 lcd.background(BLACK);
zlee9 0:fcfeec8463fa 136
zlee9 0:fcfeec8463fa 137 // Initialize
zlee9 0:fcfeec8463fa 138 lives_rem = NUM_LIVES_START;
zlee9 0:fcfeec8463fa 139 als_rem = NUM_ALIENS_START;
zlee9 0:fcfeec8463fa 140 reach = left = lcancel = false;
zlee9 0:fcfeec8463fa 141 time = 0;
zlee9 0:fcfeec8463fa 142 summonWave(); // Starting locations of all alien
zlee9 0:fcfeec8463fa 143 memcpy(wave_old, wave, sizeof(wave)); // Make copy for aliens' old locations
zlee9 0:fcfeec8463fa 144
zlee9 0:fcfeec8463fa 145 // Keep track of aliens in front of respective columns
zlee9 0:fcfeec8463fa 146 for (i = 0; i < NUM_ALIEN_COLS; i++)
zlee9 0:fcfeec8463fa 147 frontline[i] = &wave[NUM_ALIEN_ROWS][i];
zlee9 0:fcfeec8463fa 148
zlee9 0:fcfeec8463fa 149 // Set up laser structures
zlee9 0:fcfeec8463fa 150 elaser[0].collide = elaser[1].collide = elaser[2].collide =
zlee9 0:fcfeec8463fa 151 elaser_old[0].collide = elaser_old[1].collide = elaser_old[2].collide
zlee9 0:fcfeec8463fa 152 = ylaser.collide = ylaser_old.collide = true; // No lasers on screen yet
zlee9 0:fcfeec8463fa 153 // Enemy lasers are white
zlee9 0:fcfeec8463fa 154 elaser[0].color = elaser[1].color = elaser[2].color = WHITE;
zlee9 0:fcfeec8463fa 155 ylaser.color = GREEN; // Player's laser is green
zlee9 0:fcfeec8463fa 156
zlee9 0:fcfeec8463fa 157 // Set up player's ship
zlee9 0:fcfeec8463fa 158 ship = startShip();
zlee9 0:fcfeec8463fa 159 memcpy(&ship_old, &ship, sizeof(ship)); // Save copy for ship's old locations
zlee9 0:fcfeec8463fa 160
zlee9 0:fcfeec8463fa 161 // Game goes on until player loses all lives, destroy all aliens, or allow
zlee9 0:fcfeec8463fa 162 // any alien to reach screen border on player's side
zlee9 0:fcfeec8463fa 163 while (!reach && lives_rem > 0 && als_rem > 0) {
zlee9 0:fcfeec8463fa 164 /* Laser Movement */
zlee9 0:fcfeec8463fa 165 /******************/
zlee9 0:fcfeec8463fa 166 // Player's laser is on screen
zlee9 0:fcfeec8463fa 167 if (!(ylaser.collide)) {
zlee9 0:fcfeec8463fa 168 if (ylaser.y >= 0)
zlee9 0:fcfeec8463fa 169 (ylaser.y)-= 3; // Laser travels up to aliens' side
zlee9 0:fcfeec8463fa 170 else
zlee9 0:fcfeec8463fa 171 ylaser.collide = true; // Laser vanishes at top of screen
zlee9 0:fcfeec8463fa 172 }
zlee9 0:fcfeec8463fa 173
zlee9 0:fcfeec8463fa 174 // Enemy lasers is on screen
zlee9 0:fcfeec8463fa 175 for (i = 0; i < ELASER_CAP; i++) {
zlee9 0:fcfeec8463fa 176 if (elaser[i].y < SCREENHEIGHT) // Enemy lasers travel down to player's side
zlee9 0:fcfeec8463fa 177 (elaser[i].y)++;
zlee9 0:fcfeec8463fa 178 else // Enemy laser vanishes at bottom of screen
zlee9 0:fcfeec8463fa 179 elaser[i].collide = true;
zlee9 0:fcfeec8463fa 180 }
zlee9 0:fcfeec8463fa 181
zlee9 0:fcfeec8463fa 182 /* Controls */
zlee9 0:fcfeec8463fa 183 /******************/
zlee9 0:fcfeec8463fa 184 // Player firing laser
zlee9 0:fcfeec8463fa 185 if (button && ylaser.collide) {
zlee9 0:fcfeec8463fa 186 // Initialize laser's locations according to ship's
zlee9 0:fcfeec8463fa 187 ylaser.y = ship.y - 1;
zlee9 0:fcfeec8463fa 188 ylaser.x = ship.x + (ship.width >> 1);
zlee9 0:fcfeec8463fa 189 // Can fire next laser after current hits top of screen or other objects
zlee9 0:fcfeec8463fa 190 ylaser.collide = false;
zlee9 0:fcfeec8463fa 191 }
zlee9 0:fcfeec8463fa 192
zlee9 0:fcfeec8463fa 193 // Player steering ship
zlee9 0:fcfeec8463fa 194 hper = horiz; // Read joystick's horizontal position.
zlee9 0:fcfeec8463fa 195 if (GOLEFT(hper) && ship.x > 0)
zlee9 0:fcfeec8463fa 196 (ship.x)--; // Ship moves left/
zlee9 0:fcfeec8463fa 197
zlee9 0:fcfeec8463fa 198 if (GORIGHT(hper) && ship.x < SCREENWIDTH - 1)
zlee9 0:fcfeec8463fa 199 (ship.x)++; // Ship moves right
zlee9 0:fcfeec8463fa 200
zlee9 0:fcfeec8463fa 201 /* Alien Activity */
zlee9 0:fcfeec8463fa 202 /******************/
zlee9 0:fcfeec8463fa 203 // Move wave of aliens. Update whether any alien reaches screen on
zlee9 0:fcfeec8463fa 204 // player's side
zlee9 0:fcfeec8463fa 205 reach = moveAlienWave(&left);
zlee9 0:fcfeec8463fa 206
zlee9 0:fcfeec8463fa 207 // Enemy aliens firing lasers. Aliens fire lasers only after certain
zlee9 0:fcfeec8463fa 208 // time intervals or when one of their lasers canceled out with player's
zlee9 0:fcfeec8463fa 209 if (time >= RELOAD_TIME || lcancel) {
zlee9 0:fcfeec8463fa 210 // Choose random front alien to fire laser. Ignore any invalid ones
zlee9 0:fcfeec8463fa 211 // (those in columns that were completely wiped out have been set to
zlee9 0:fcfeec8463fa 212 // NULL)
zlee9 0:fcfeec8463fa 213 while ((sh_alien = frontline[rand() / (RAND_MAX/i + 1)]) == NULL);
zlee9 0:fcfeec8463fa 214
zlee9 0:fcfeec8463fa 215 // Find enemy laser structure not in use for display
zlee9 0:fcfeec8463fa 216 if (elaser[0].collide)
zlee9 0:fcfeec8463fa 217 i = 0;
zlee9 0:fcfeec8463fa 218 else if (elaser[1].collide)
zlee9 0:fcfeec8463fa 219 i = 1;
zlee9 0:fcfeec8463fa 220 else
zlee9 0:fcfeec8463fa 221 i = 2;
zlee9 0:fcfeec8463fa 222
zlee9 0:fcfeec8463fa 223 // Initialize laser's location according to chosen alien's
zlee9 0:fcfeec8463fa 224 elaser[i].y = sh_alien->y + 1;
zlee9 0:fcfeec8463fa 225 elaser[i].x = sh_alien->x + (ALIEN_WIDTH >> 1);
zlee9 0:fcfeec8463fa 226 elaser[i].collide = lcancel = false;
zlee9 0:fcfeec8463fa 227 time = 0; // Reset time for next enemy laser fire
zlee9 0:fcfeec8463fa 228 }
zlee9 0:fcfeec8463fa 229
zlee9 0:fcfeec8463fa 230 /* Collisions */
zlee9 0:fcfeec8463fa 231 /*******************/
zlee9 0:fcfeec8463fa 232 // Cancel out player's laser and enemy laser should they connect
zlee9 0:fcfeec8463fa 233 lcancel = twoLasersCollide(&ylaser, elaser);
zlee9 0:fcfeec8463fa 234
zlee9 0:fcfeec8463fa 235 // Kill alien if player's laser hits one
zlee9 0:fcfeec8463fa 236 destroyAlien(&als_rem, &ylaser, frontline);
zlee9 0:fcfeec8463fa 237
zlee9 0:fcfeec8463fa 238 // Check for any enemy laser touching ship
zlee9 0:fcfeec8463fa 239 for (i = 0; i < ELASER_CAP; i++) {
zlee9 0:fcfeec8463fa 240 if (!(elaser[i].collide) && elaser[i].y >= ship.y && elaser[i].y <=
zlee9 0:fcfeec8463fa 241 ship.y + ship.height && elaser[i].x >= ship.x && elaser[i].x
zlee9 0:fcfeec8463fa 242 <= ship.x + ship.width) {
zlee9 0:fcfeec8463fa 243 // Plyaer loses life if hit by laser
zlee9 0:fcfeec8463fa 244 lives_rem--;
zlee9 0:fcfeec8463fa 245 ship.killed = elaser[i].collide = true;
zlee9 0:fcfeec8463fa 246 }
zlee9 0:fcfeec8463fa 247 }
zlee9 0:fcfeec8463fa 248
zlee9 0:fcfeec8463fa 249 updateScreen(ship, ship_old, ylaser, ylaser_old, elaser, elaser_old,
zlee9 0:fcfeec8463fa 250 lives_rem); // Update gameplay screen
zlee9 0:fcfeec8463fa 251 ship.killed = false;
zlee9 0:fcfeec8463fa 252 time++; // Time passes
zlee9 0:fcfeec8463fa 253
zlee9 0:fcfeec8463fa 254 // Update old locations to current
zlee9 0:fcfeec8463fa 255 memcpy(wave_old, wave, sizeof(wave));
zlee9 0:fcfeec8463fa 256 memcpy(elaser_old, elaser, sizeof(elaser));
zlee9 0:fcfeec8463fa 257 ylaser_old = ylaser;
zlee9 0:fcfeec8463fa 258 ship_old = ship;
zlee9 0:fcfeec8463fa 259 } // End of main gameplay loop
zlee9 0:fcfeec8463fa 260
zlee9 0:fcfeec8463fa 261
zlee9 0:fcfeec8463fa 262 // Game's outcomes
zlee9 0:fcfeec8463fa 263 if (als_rem) // Lost all lives or aliens reached your border
zlee9 0:fcfeec8463fa 264 return LOSE;
zlee9 0:fcfeec8463fa 265 else // Destroyed all aliens
zlee9 0:fcfeec8463fa 266 return WIN;
zlee9 0:fcfeec8463fa 267 }
zlee9 0:fcfeec8463fa 268
zlee9 0:fcfeec8463fa 269
zlee9 0:fcfeec8463fa 270 void win()
zlee9 0:fcfeec8463fa 271 {
zlee9 0:fcfeec8463fa 272 /******
zlee9 0:fcfeec8463fa 273 * win
zlee9 0:fcfeec8463fa 274 * Displays congratulation screen and prompt player to replay
zlee9 0:fcfeec8463fa 275 ******/
zlee9 0:fcfeec8463fa 276 // Congratulation screen
zlee9 0:fcfeec8463fa 277 lcd.cls();
zlee9 1:02e3c9b77580 278 lcd.locate(0,2);
zlee9 1:02e3c9b77580 279 lcd.printf("WELL DONE");
zlee9 1:02e3c9b77580 280 lcd.locate(0,5);
zlee9 1:02e3c9b77580 281 lcd.printf("EARTHLING");
zlee9 1:02e3c9b77580 282 lcd.locate(0,8);
zlee9 1:02e3c9b77580 283 lcd.printf("THIS TIME YOU");
zlee9 1:02e3c9b77580 284 lcd.locate(0,11);
zlee9 1:02e3c9b77580 285 lcd.printf("WIN");
zlee9 0:fcfeec8463fa 286 wait(2);
zlee9 0:fcfeec8463fa 287
zlee9 0:fcfeec8463fa 288 // Prompt player to play game again
zlee9 0:fcfeec8463fa 289 lcd.cls();
zlee9 1:02e3c9b77580 290 lcd.locate(0,11);
zlee9 0:fcfeec8463fa 291 lcd.printf("PRESS BUTTON TO PLAY AGAIN");
zlee9 0:fcfeec8463fa 292 WAIT4FULLPUSH(button);
zlee9 0:fcfeec8463fa 293 }
zlee9 0:fcfeec8463fa 294
zlee9 0:fcfeec8463fa 295
zlee9 0:fcfeec8463fa 296 void lose()
zlee9 0:fcfeec8463fa 297 {
zlee9 0:fcfeec8463fa 298 /******
zlee9 0:fcfeec8463fa 299 * lose
zlee9 0:fcfeec8463fa 300 * Displays game-over screen and prompts player to replay
zlee9 0:fcfeec8463fa 301 ******/
zlee9 0:fcfeec8463fa 302 // Game-over screen
zlee9 0:fcfeec8463fa 303 lcd.cls();
zlee9 0:fcfeec8463fa 304 lcd.locate(4,3);
zlee9 0:fcfeec8463fa 305 lcd.printf("YOU SUCK");
zlee9 0:fcfeec8463fa 306 wait(2);
zlee9 0:fcfeec8463fa 307
zlee9 0:fcfeec8463fa 308 // Prompt player to play game again
zlee9 0:fcfeec8463fa 309 lcd.locate(0,10);
zlee9 0:fcfeec8463fa 310 lcd.printf("PRESS BUTTON TO PLAY AGAIN");
zlee9 0:fcfeec8463fa 311 WAIT4FULLPUSH(button);
zlee9 0:fcfeec8463fa 312 }
zlee9 0:fcfeec8463fa 313
zlee9 0:fcfeec8463fa 314
zlee9 0:fcfeec8463fa 315 /***************************************************************/
zlee9 0:fcfeec8463fa 316 /* */
zlee9 0:fcfeec8463fa 317 /* Game-Drawing Funntion */
zlee9 0:fcfeec8463fa 318 /* */
zlee9 0:fcfeec8463fa 319 /***************************************************************/
zlee9 0:fcfeec8463fa 320 void updateScreen(OBJECT ship, OBJECT ship_old, POINT ylaser, POINT ylaser_old,
zlee9 0:fcfeec8463fa 321 POINT elaser[], POINT elaser_old[], int lives_rem)
zlee9 0:fcfeec8463fa 322 {
zlee9 0:fcfeec8463fa 323 /******
zlee9 0:fcfeec8463fa 324 * updateScreen
zlee9 0:fcfeec8463fa 325 * Updates game display on Nokia LCD screen
zlee9 0:fcfeec8463fa 326 ******/
zlee9 0:fcfeec8463fa 327 int r, c;
zlee9 0:fcfeec8463fa 328
zlee9 0:fcfeec8463fa 329 // Old locations are drawn with black to erase previous images in display
zlee9 0:fcfeec8463fa 330 // when redrawing images
zlee9 0:fcfeec8463fa 331 wait(0.02);
zlee9 0:fcfeec8463fa 332
zlee9 0:fcfeec8463fa 333 // Redraw surviving aliens from their positions
zlee9 0:fcfeec8463fa 334 for (c = 0; c < NUM_ALIEN_COLS; c++) {
zlee9 0:fcfeec8463fa 335 for (r = 0; r < NUM_ALIEN_ROWS; r++) {
zlee9 0:fcfeec8463fa 336 lcd.fill(wave_old[r][c].x, wave_old[r][c].y, wave_old[r][c].width,
zlee9 0:fcfeec8463fa 337 wave_old[r][c].height, BLACK);
zlee9 0:fcfeec8463fa 338 // Aliens as white rectangles
zlee9 0:fcfeec8463fa 339 if (!(wave[r][c].killed)) // Don't draw destroyed aliens
zlee9 0:fcfeec8463fa 340 lcd.fill(wave[r][c].x, wave[r][c].y, wave[r][c].width,
zlee9 0:fcfeec8463fa 341 wave[r][c].height, wave[r][c].color);
zlee9 0:fcfeec8463fa 342 }
zlee9 0:fcfeec8463fa 343 }
zlee9 0:fcfeec8463fa 344
zlee9 0:fcfeec8463fa 345 // Redraw enemy lasers as single white pixels
zlee9 0:fcfeec8463fa 346 for (c = 0; c < ELASER_CAP; c++) {
zlee9 0:fcfeec8463fa 347 lcd.pixel(elaser_old[c].x, elaser_old[c].y, BLACK);
zlee9 0:fcfeec8463fa 348 lcd.pixel(elaser_old[c].x+1, elaser_old[c].y, BLACK);
zlee9 0:fcfeec8463fa 349 lcd.pixel(elaser_old[c].x, elaser_old[c].y+1, BLACK);
zlee9 0:fcfeec8463fa 350 lcd.pixel(elaser_old[c].x+1, elaser_old[c].y+1, BLACK);
zlee9 0:fcfeec8463fa 351 // Don't draw lasers that hit bottom screen border or other objects
zlee9 0:fcfeec8463fa 352 if (!(elaser[c].collide)) {
zlee9 0:fcfeec8463fa 353 lcd.pixel(elaser[c].x, elaser[c].y, elaser[c].color);
zlee9 0:fcfeec8463fa 354 lcd.pixel(elaser[c].x+1, elaser[c].y, elaser[c].color);
zlee9 0:fcfeec8463fa 355 lcd.pixel(elaser[c].x, elaser[c].y+1, elaser[c].color);
zlee9 0:fcfeec8463fa 356 lcd.pixel(elaser[c].x+1, elaser[c].y+1, elaser[c].color);
zlee9 0:fcfeec8463fa 357 }
zlee9 0:fcfeec8463fa 358 }
zlee9 0:fcfeec8463fa 359
zlee9 0:fcfeec8463fa 360 // Redraw player's laser as single green pixel. Check that laser doesn't
zlee9 0:fcfeec8463fa 361 // hit top screen border or other objects
zlee9 0:fcfeec8463fa 362 lcd.pixel(ylaser_old.x, ylaser_old.y, BLACK);
zlee9 0:fcfeec8463fa 363 lcd.pixel(ylaser_old.x+1, ylaser_old.y, BLACK);
zlee9 0:fcfeec8463fa 364 lcd.pixel(ylaser_old.x, ylaser_old.y+1, BLACK);
zlee9 0:fcfeec8463fa 365 lcd.pixel(ylaser_old.x+1, ylaser_old.y+1, BLACK);
zlee9 0:fcfeec8463fa 366 if (!(ylaser.collide))
zlee9 0:fcfeec8463fa 367 lcd.pixel(ylaser.x, ylaser.y, ylaser.color);
zlee9 0:fcfeec8463fa 368 lcd.pixel(ylaser.x+1, ylaser.y, ylaser.color);
zlee9 0:fcfeec8463fa 369 lcd.pixel(ylaser.x, ylaser.y+1, ylaser.color);
zlee9 0:fcfeec8463fa 370 lcd.pixel(ylaser.x+1, ylaser.y+1, ylaser.color);
zlee9 0:fcfeec8463fa 371
zlee9 0:fcfeec8463fa 372 if (ship.killed) { // Ship is destroyed from being hit by laser
zlee9 0:fcfeec8463fa 373 lcd.locate(0,15);
zlee9 0:fcfeec8463fa 374 lcd.printf("LIVES: %d", lives_rem);
zlee9 0:fcfeec8463fa 375 wait(2); // Game pauses for few seconds before player uses next life
zlee9 0:fcfeec8463fa 376 lcd.cls(); // Clear lives message
zlee9 0:fcfeec8463fa 377 }
zlee9 0:fcfeec8463fa 378
zlee9 0:fcfeec8463fa 379 // Redraw player's ship as green rectangle
zlee9 0:fcfeec8463fa 380 lcd.fill(ship_old.x, ship_old.y, ship_old.width, ship_old.height, BLACK);
zlee9 0:fcfeec8463fa 381 lcd.fill(ship.x, ship.y, ship.width, ship.height, ship.color);
zlee9 0:fcfeec8463fa 382 }
zlee9 0:fcfeec8463fa 383
zlee9 0:fcfeec8463fa 384
zlee9 0:fcfeec8463fa 385 /***************************************************************/
zlee9 0:fcfeec8463fa 386 /* */
zlee9 0:fcfeec8463fa 387 /* This function plays the lose/win screen music and generates */
zlee9 0:fcfeec8463fa 388 /* the firing sound effect */
zlee9 0:fcfeec8463fa 389 /* */
zlee9 0:fcfeec8463fa 390 /***************************************************************/
zlee9 0:fcfeec8463fa 391 void playstart(void const *args)//Th
zlee9 0:fcfeec8463fa 392 { //Depending on the state of the game,
zlee9 0:fcfeec8463fa 393 //queue either screen music or play sound effect upon fire
zlee9 0:fcfeec8463fa 394 while(true) {
zlee9 0:fcfeec8463fa 395 FILE *wave_file;
zlee9 0:fcfeec8463fa 396 //At the start screen, do nothing
zlee9 0:fcfeec8463fa 397 while(state==START) {
zlee9 0:fcfeec8463fa 398 Thread::wait(50);
zlee9 0:fcfeec8463fa 399 }
zlee9 0:fcfeec8463fa 400
zlee9 0:fcfeec8463fa 401 //wait 500ms after start screen music has been cutoff before
zlee9 0:fcfeec8463fa 402 //continuing to avoid conflicts
zlee9 0:fcfeec8463fa 403 while(!doneski) {
zlee9 0:fcfeec8463fa 404 Thread::wait(500);
zlee9 0:fcfeec8463fa 405 }
zlee9 0:fcfeec8463fa 406
zlee9 0:fcfeec8463fa 407 //While in the game, play firing sound when the player fires
zlee9 0:fcfeec8463fa 408 while(state==GAME) {
zlee9 0:fcfeec8463fa 409 if(button) {
zlee9 0:fcfeec8463fa 410
zlee9 0:fcfeec8463fa 411 wave_file=fopen("/sd/mample4.wav","r");
zlee9 0:fcfeec8463fa 412
zlee9 0:fcfeec8463fa 413
zlee9 0:fcfeec8463fa 414 waver.play(wave_file);
zlee9 0:fcfeec8463fa 415 fclose(wave_file);
zlee9 0:fcfeec8463fa 416 }
zlee9 0:fcfeec8463fa 417 }
zlee9 0:fcfeec8463fa 418
zlee9 0:fcfeec8463fa 419 //Play losing screen music
zlee9 0:fcfeec8463fa 420 while(state==LOSE) {
zlee9 0:fcfeec8463fa 421 wave_file=fopen("/sd/mample3.wav","r");
zlee9 0:fcfeec8463fa 422 waver.play(wave_file);
zlee9 0:fcfeec8463fa 423 fclose(wave_file);
zlee9 0:fcfeec8463fa 424 }
zlee9 0:fcfeec8463fa 425
zlee9 0:fcfeec8463fa 426 //Play winning screen music
zlee9 0:fcfeec8463fa 427 while(state==WIN) {
zlee9 0:fcfeec8463fa 428 wave_file=fopen("/sd/mample3.wav","r");
zlee9 0:fcfeec8463fa 429 waver.play(wave_file);
zlee9 0:fcfeec8463fa 430 fclose(wave_file);
zlee9 0:fcfeec8463fa 431 }
zlee9 0:fcfeec8463fa 432 }
zlee9 0:fcfeec8463fa 433 }
zlee9 0:fcfeec8463fa 434
zlee9 0:fcfeec8463fa 435
zlee9 0:fcfeec8463fa 436 /***************************************************************/
zlee9 0:fcfeec8463fa 437 /* */
zlee9 0:fcfeec8463fa 438 /* startmusic() plays the start screen music */
zlee9 0:fcfeec8463fa 439 /* */
zlee9 0:fcfeec8463fa 440 /***************************************************************/
zlee9 0:fcfeec8463fa 441 void startmusic(void const *args)
zlee9 0:fcfeec8463fa 442 {
zlee9 0:fcfeec8463fa 443
zlee9 0:fcfeec8463fa 444 FILE *wave_file;
zlee9 0:fcfeec8463fa 445 wave_file=fopen("/sd/mample2.wav","r");
zlee9 0:fcfeec8463fa 446 waver.play(wave_file);
zlee9 0:fcfeec8463fa 447 fclose(wave_file);
zlee9 0:fcfeec8463fa 448
zlee9 0:fcfeec8463fa 449 }