Eric Xu / Mbed 2 deprecated Arcade_RedX

Multi-game multiplayer arcade gaming system meant for the red X when playing Super Tic-Tac-Toe.

Dependencies:   uLCD_4DGL_SE PinDetect SDFileSystem mbed wave_player

Ghost.h@0:218d3fb75950, 2015-11-26 (annotated)

Committer:
soapy12312
Date:
Thu Nov 26 02:58:17 2015 +0000
Revision:
0:218d3fb75950
Child:
1:2a7e2f5aeda4
Working game selection with Simon Says, Super Tic-Tac-Toe and Simon Says.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
soapy12312 0:218d3fb75950 1 /******************************************************
soapy12312 0:218d3fb75950 2 * Author: Yuanzhe Xu
soapy12312 0:218d3fb75950 3 * Institution: Georgia Institute of Technology
soapy12312 0:218d3fb75950 4 * Date: October 18, 2015
soapy12312 0:218d3fb75950 5 *
soapy12312 0:218d3fb75950 6 * This header file declares all the functions and
soapy12312 0:218d3fb75950 7 * variables needed for the Ghost object. Specific
soapy12312 0:218d3fb75950 8 * ghost functionalities can be found in main.cpp.
soapy12312 0:218d3fb75950 9 ******************************************************/
soapy12312 0:218d3fb75950 10
soapy12312 0:218d3fb75950 11
soapy12312 0:218d3fb75950 12 // Ghost class
soapy12312 0:218d3fb75950 13 class Ghost {
soapy12312 0:218d3fb75950 14 public:
soapy12312 0:218d3fb75950 15 // Ghost constructor
soapy12312 0:218d3fb75950 16 Ghost(int color, Pacman& pacman, PinDetect &ghostRight, PinDetect &ghostDown, PinDetect &ghostLeft, PinDetect &ghostUp, Stage& stage, uLCD_4DGL& uLCD)
soapy12312 0:218d3fb75950 17 : color(color), pacman(pacman), ghostRight(ghostRight), ghostDown(ghostDown), ghostLeft(ghostLeft), ghostUp(ghostUp), stage(stage), uLCD(uLCD) {
soapy12312 0:218d3fb75950 18 // Use internal pullups
soapy12312 0:218d3fb75950 19 ghostRight.mode(PullUp);
soapy12312 0:218d3fb75950 20 ghostDown.mode(PullUp);
soapy12312 0:218d3fb75950 21 ghostLeft.mode(PullUp);
soapy12312 0:218d3fb75950 22 ghostUp.mode(PullUp);
soapy12312 0:218d3fb75950 23 wait(0.01);
soapy12312 0:218d3fb75950 24 // Interrupt callback functions
soapy12312 0:218d3fb75950 25 ghostRight.attach_deasserted(this, &Ghost::ghostRightTrigger);
soapy12312 0:218d3fb75950 26 ghostDown.attach_deasserted(this, &Ghost::ghostDownTrigger);
soapy12312 0:218d3fb75950 27 ghostLeft.attach_deasserted(this, &Ghost::ghostLeftTrigger);
soapy12312 0:218d3fb75950 28 ghostUp.attach_deasserted(this, &Ghost::ghostUpTrigger);
soapy12312 0:218d3fb75950 29 wait(0.01);
soapy12312 0:218d3fb75950 30 // Set sampling frequency
soapy12312 0:218d3fb75950 31 ghostRight.setSampleFrequency();
soapy12312 0:218d3fb75950 32 ghostDown.setSampleFrequency();
soapy12312 0:218d3fb75950 33 ghostLeft.setSampleFrequency();
soapy12312 0:218d3fb75950 34 ghostUp.setSampleFrequency();
soapy12312 0:218d3fb75950 35 wait(1);
soapy12312 0:218d3fb75950 36 }
soapy12312 0:218d3fb75950 37
soapy12312 0:218d3fb75950 38 // Initialize the ghost at the beginning of the game
soapy12312 0:218d3fb75950 39 void initialize(int xCoordinate, int yCoordinate, int facingDirection) {
soapy12312 0:218d3fb75950 40 startingX = xCoordinate;
soapy12312 0:218d3fb75950 41 startingY = yCoordinate;
soapy12312 0:218d3fb75950 42 x = xCoordinate;
soapy12312 0:218d3fb75950 43 y = yCoordinate;
soapy12312 0:218d3fb75950 44 direction = facingDirection;
soapy12312 0:218d3fb75950 45 immobile = false;
soapy12312 0:218d3fb75950 46 draw(x, y);
soapy12312 0:218d3fb75950 47 }
soapy12312 0:218d3fb75950 48
soapy12312 0:218d3fb75950 49 // Move the ghost
soapy12312 0:218d3fb75950 50 void move() {
soapy12312 0:218d3fb75950 51 // If Pac-Man died
soapy12312 0:218d3fb75950 52 if (pacman.dead == true) {
soapy12312 0:218d3fb75950 53 // Reset the ghost
soapy12312 0:218d3fb75950 54 erase(x, y);
soapy12312 0:218d3fb75950 55 reinitialize();
soapy12312 0:218d3fb75950 56 pacman.dead = false;
soapy12312 0:218d3fb75950 57 }
soapy12312 0:218d3fb75950 58
soapy12312 0:218d3fb75950 59 // If the ghost is not moving
soapy12312 0:218d3fb75950 60 if (immobile == true) {
soapy12312 0:218d3fb75950 61 // Reset the ghost
soapy12312 0:218d3fb75950 62 erase(x, y);
soapy12312 0:218d3fb75950 63 stage.redrawPacDots();
soapy12312 0:218d3fb75950 64 reinitialize();
soapy12312 0:218d3fb75950 65 }
soapy12312 0:218d3fb75950 66
soapy12312 0:218d3fb75950 67 // Move the ghost in its current direction
soapy12312 0:218d3fb75950 68 switch (direction) {
soapy12312 0:218d3fb75950 69 case FACERIGHT:
soapy12312 0:218d3fb75950 70 moveRight();
soapy12312 0:218d3fb75950 71 break;
soapy12312 0:218d3fb75950 72 case FACEDOWN:
soapy12312 0:218d3fb75950 73 moveDown();
soapy12312 0:218d3fb75950 74 break;
soapy12312 0:218d3fb75950 75 case FACELEFT:
soapy12312 0:218d3fb75950 76 moveLeft();
soapy12312 0:218d3fb75950 77 break;
soapy12312 0:218d3fb75950 78 case FACEUP:
soapy12312 0:218d3fb75950 79 moveUp();
soapy12312 0:218d3fb75950 80 break;
soapy12312 0:218d3fb75950 81 default:
soapy12312 0:218d3fb75950 82 break;
soapy12312 0:218d3fb75950 83 }
soapy12312 0:218d3fb75950 84
soapy12312 0:218d3fb75950 85 // If Pac-Man and the ghost occupy the same position
soapy12312 0:218d3fb75950 86 if ((abs(pacman.x - x) < 5) && (abs(pacman.y - y) < 5)) {
soapy12312 0:218d3fb75950 87 // If Pac-Man is not invincible
soapy12312 0:218d3fb75950 88 if (pacman.powerUp == 0) {
soapy12312 0:218d3fb75950 89 // Reset Pac-Man and the ghost
soapy12312 0:218d3fb75950 90 pacman.ghostsEaten = 0;
soapy12312 0:218d3fb75950 91 pacman.erase(pacman.x, pacman.y);
soapy12312 0:218d3fb75950 92 erase(x, y);
soapy12312 0:218d3fb75950 93 pacman.draw(pacman.x, pacman.y);
soapy12312 0:218d3fb75950 94 wait(0.5);
soapy12312 0:218d3fb75950 95 pacman.die();
soapy12312 0:218d3fb75950 96 pacman.dead = true;
soapy12312 0:218d3fb75950 97 reinitialize();
soapy12312 0:218d3fb75950 98 // If Pac-Man is invincible
soapy12312 0:218d3fb75950 99 } else {
soapy12312 0:218d3fb75950 100 // Reset the ghost
soapy12312 0:218d3fb75950 101 pacman.ghostsEaten++;
soapy12312 0:218d3fb75950 102 pacman.score += pacman.ghostsEaten * 200;
soapy12312 0:218d3fb75950 103 pacman.scoreChanged = true;
soapy12312 0:218d3fb75950 104 erase(x, y);
soapy12312 0:218d3fb75950 105 stage.redrawPacDots();
soapy12312 0:218d3fb75950 106 pacman.draw(pacman.x, pacman.y);
soapy12312 0:218d3fb75950 107 wait(0.5);
soapy12312 0:218d3fb75950 108 reinitialize();
soapy12312 0:218d3fb75950 109 }
soapy12312 0:218d3fb75950 110 }
soapy12312 0:218d3fb75950 111 }
soapy12312 0:218d3fb75950 112
soapy12312 0:218d3fb75950 113
soapy12312 0:218d3fb75950 114 private:
soapy12312 0:218d3fb75950 115 int color;
soapy12312 0:218d3fb75950 116 Pacman& pacman;
soapy12312 0:218d3fb75950 117 PinDetect &ghostRight;
soapy12312 0:218d3fb75950 118 PinDetect &ghostDown;
soapy12312 0:218d3fb75950 119 PinDetect &ghostLeft;
soapy12312 0:218d3fb75950 120 PinDetect &ghostUp;
soapy12312 0:218d3fb75950 121 Stage& stage;
soapy12312 0:218d3fb75950 122 uLCD_4DGL& uLCD;
soapy12312 0:218d3fb75950 123 int startingX;
soapy12312 0:218d3fb75950 124 int startingY;
soapy12312 0:218d3fb75950 125 int x;
soapy12312 0:218d3fb75950 126 int y;
soapy12312 0:218d3fb75950 127 volatile int previousDirection;
soapy12312 0:218d3fb75950 128 int direction;
soapy12312 0:218d3fb75950 129 volatile int nextDirection;
soapy12312 0:218d3fb75950 130 bool immobile;
soapy12312 0:218d3fb75950 131
soapy12312 0:218d3fb75950 132 // Set the next direction to be right
soapy12312 0:218d3fb75950 133 void ghostRightTrigger() {
soapy12312 0:218d3fb75950 134 previousDirection = (direction + 2) % 4;
soapy12312 0:218d3fb75950 135
soapy12312 0:218d3fb75950 136 if (previousDirection != FACERIGHT) {
soapy12312 0:218d3fb75950 137 nextDirection = FACERIGHT;
soapy12312 0:218d3fb75950 138 }
soapy12312 0:218d3fb75950 139 }
soapy12312 0:218d3fb75950 140
soapy12312 0:218d3fb75950 141 // Set the next direction to be down
soapy12312 0:218d3fb75950 142 void ghostDownTrigger() {
soapy12312 0:218d3fb75950 143 previousDirection = (direction + 2) % 4;
soapy12312 0:218d3fb75950 144
soapy12312 0:218d3fb75950 145 if (previousDirection != FACEDOWN) {
soapy12312 0:218d3fb75950 146 nextDirection = FACEDOWN;
soapy12312 0:218d3fb75950 147 }
soapy12312 0:218d3fb75950 148 }
soapy12312 0:218d3fb75950 149
soapy12312 0:218d3fb75950 150 // Set the next direction to be left
soapy12312 0:218d3fb75950 151 void ghostLeftTrigger() {
soapy12312 0:218d3fb75950 152 previousDirection = (direction + 2) % 4;
soapy12312 0:218d3fb75950 153
soapy12312 0:218d3fb75950 154 if (previousDirection != FACELEFT) {
soapy12312 0:218d3fb75950 155 nextDirection = FACELEFT;
soapy12312 0:218d3fb75950 156 }
soapy12312 0:218d3fb75950 157 }
soapy12312 0:218d3fb75950 158
soapy12312 0:218d3fb75950 159 // Set the next direction to be up
soapy12312 0:218d3fb75950 160 void ghostUpTrigger() {
soapy12312 0:218d3fb75950 161 previousDirection = (direction + 2) % 4;
soapy12312 0:218d3fb75950 162
soapy12312 0:218d3fb75950 163 if (previousDirection != FACEUP) {
soapy12312 0:218d3fb75950 164 nextDirection = FACEUP;
soapy12312 0:218d3fb75950 165 }
soapy12312 0:218d3fb75950 166 }
soapy12312 0:218d3fb75950 167
soapy12312 0:218d3fb75950 168 // Reset function for each ghost
soapy12312 0:218d3fb75950 169 void reinitialize() {
soapy12312 0:218d3fb75950 170 // Red ghost reset
soapy12312 0:218d3fb75950 171 if (color == RED) {
soapy12312 0:218d3fb75950 172 initialize(startingX, startingY, FACELEFT);
soapy12312 0:218d3fb75950 173 // Yellow ghost reset
soapy12312 0:218d3fb75950 174 } else if (color == YELLOW) {
soapy12312 0:218d3fb75950 175 initialize(startingX, startingY, FACERIGHT);
soapy12312 0:218d3fb75950 176 }
soapy12312 0:218d3fb75950 177 }
soapy12312 0:218d3fb75950 178
soapy12312 0:218d3fb75950 179 // Draw the ghost based on its direction
soapy12312 0:218d3fb75950 180 void draw(int xCoordinate, int yCoordinate) {
soapy12312 0:218d3fb75950 181 // Outer bound rectangular coordinates of the ghost
soapy12312 0:218d3fb75950 182 int x1 = xCoordinate - 3;
soapy12312 0:218d3fb75950 183 int x2 = xCoordinate + 3;
soapy12312 0:218d3fb75950 184 int y1 = yCoordinate - 3;
soapy12312 0:218d3fb75950 185 int y2 = yCoordinate + 3;
soapy12312 0:218d3fb75950 186
soapy12312 0:218d3fb75950 187 // If Pac-Man is currently invincible
soapy12312 0:218d3fb75950 188 if (pacman.powerUp > 0) {
soapy12312 0:218d3fb75950 189 // Draw the ghost in blue
soapy12312 0:218d3fb75950 190 uLCD.filled_rectangle(x1, y1, x2, y2, BLUE);
soapy12312 0:218d3fb75950 191 // If Pac-Man is not currently invincible
soapy12312 0:218d3fb75950 192 } else {
soapy12312 0:218d3fb75950 193 // Draw the ghost in its original color
soapy12312 0:218d3fb75950 194 uLCD.filled_rectangle(x1, y1, x2, y2, color);
soapy12312 0:218d3fb75950 195 }
soapy12312 0:218d3fb75950 196
soapy12312 0:218d3fb75950 197 // Specify the pixels
soapy12312 0:218d3fb75950 198 uLCD.pixel(x1, y1, BLACK);
soapy12312 0:218d3fb75950 199 uLCD.pixel(x2, y1, BLACK);
soapy12312 0:218d3fb75950 200 uLCD.pixel(xCoordinate - 2, y2, BLACK);
soapy12312 0:218d3fb75950 201 uLCD.pixel(xCoordinate, y2, BLACK);
soapy12312 0:218d3fb75950 202 uLCD.pixel(xCoordinate + 2, y2, BLACK);
soapy12312 0:218d3fb75950 203 uLCD.pixel(x1, yCoordinate - 1, WHITE);
soapy12312 0:218d3fb75950 204 uLCD.pixel(xCoordinate - 2, yCoordinate - 2, WHITE);
soapy12312 0:218d3fb75950 205 uLCD.pixel(xCoordinate - 2, yCoordinate - 1, WHITE);
soapy12312 0:218d3fb75950 206 uLCD.pixel(xCoordinate - 2, yCoordinate, WHITE);
soapy12312 0:218d3fb75950 207 uLCD.pixel(xCoordinate - 1, yCoordinate - 1, WHITE);
soapy12312 0:218d3fb75950 208 uLCD.pixel(x2, yCoordinate - 1, WHITE);
soapy12312 0:218d3fb75950 209 uLCD.pixel(xCoordinate + 2, yCoordinate - 2, WHITE);
soapy12312 0:218d3fb75950 210 uLCD.pixel(xCoordinate + 2, yCoordinate - 1, WHITE);
soapy12312 0:218d3fb75950 211 uLCD.pixel(xCoordinate + 2, yCoordinate, WHITE);
soapy12312 0:218d3fb75950 212 uLCD.pixel(xCoordinate + 1, yCoordinate - 1, WHITE);
soapy12312 0:218d3fb75950 213
soapy12312 0:218d3fb75950 214 // Draw the ghost's eyes based on its current direction
soapy12312 0:218d3fb75950 215 switch (direction) {
soapy12312 0:218d3fb75950 216 case FACERIGHT:
soapy12312 0:218d3fb75950 217 uLCD.pixel(xCoordinate - 1, yCoordinate - 1, BLACK);
soapy12312 0:218d3fb75950 218 uLCD.pixel(x2, yCoordinate - 1, BLACK);
soapy12312 0:218d3fb75950 219 break;
soapy12312 0:218d3fb75950 220 case FACEDOWN:
soapy12312 0:218d3fb75950 221 uLCD.pixel(xCoordinate - 2, yCoordinate, BLACK);
soapy12312 0:218d3fb75950 222 uLCD.pixel(xCoordinate + 2, yCoordinate, BLACK);
soapy12312 0:218d3fb75950 223 break;
soapy12312 0:218d3fb75950 224 case FACELEFT:
soapy12312 0:218d3fb75950 225 uLCD.pixel(x1, yCoordinate - 1, BLACK);
soapy12312 0:218d3fb75950 226 uLCD.pixel(xCoordinate + 1, yCoordinate - 1, BLACK);
soapy12312 0:218d3fb75950 227 break;
soapy12312 0:218d3fb75950 228 case FACEUP:
soapy12312 0:218d3fb75950 229 uLCD.pixel(xCoordinate - 2, yCoordinate - 2, BLACK);
soapy12312 0:218d3fb75950 230 uLCD.pixel(xCoordinate + 2, yCoordinate - 2, BLACK);
soapy12312 0:218d3fb75950 231 break;
soapy12312 0:218d3fb75950 232 default:
soapy12312 0:218d3fb75950 233 break;
soapy12312 0:218d3fb75950 234 }
soapy12312 0:218d3fb75950 235 }
soapy12312 0:218d3fb75950 236
soapy12312 0:218d3fb75950 237 // Erase the ghost from the given position
soapy12312 0:218d3fb75950 238 void erase(int xCoordinate, int yCoordinate) {
soapy12312 0:218d3fb75950 239 int x1 = xCoordinate - 3;
soapy12312 0:218d3fb75950 240 int x2 = xCoordinate + 3;
soapy12312 0:218d3fb75950 241 int y1 = yCoordinate - 3;
soapy12312 0:218d3fb75950 242 int y2 = yCoordinate + 3;
soapy12312 0:218d3fb75950 243 uLCD.filled_rectangle(x1, y1, x2, y2, BLACK);
soapy12312 0:218d3fb75950 244 }
soapy12312 0:218d3fb75950 245
soapy12312 0:218d3fb75950 246 // Move the ghost right
soapy12312 0:218d3fb75950 247 void moveRight() {
soapy12312 0:218d3fb75950 248 // If the space to the right is a valid position and is not the rightmost space
soapy12312 0:218d3fb75950 249 if ((stage.positions[x + 1][y] != 0) && (x != 124)) {
soapy12312 0:218d3fb75950 250 // The ghost is mobile
soapy12312 0:218d3fb75950 251 immobile = false;
soapy12312 0:218d3fb75950 252 // Erase the ghost from its current position
soapy12312 0:218d3fb75950 253 erase(x, y);
soapy12312 0:218d3fb75950 254 // Increment the ghost's x-coordinate
soapy12312 0:218d3fb75950 255 x++;
soapy12312 0:218d3fb75950 256
soapy12312 0:218d3fb75950 257 // If passed over a pac dot
soapy12312 0:218d3fb75950 258 if (stage.positions[x - 4][y] == 2) {
soapy12312 0:218d3fb75950 259 // Redraw the pac dot
soapy12312 0:218d3fb75950 260 uLCD.pixel(x - 4, y, YELLOW);
soapy12312 0:218d3fb75950 261 // If passed over a big pac dot
soapy12312 0:218d3fb75950 262 } else {
soapy12312 0:218d3fb75950 263 // Redraw the big pac dot
soapy12312 0:218d3fb75950 264 for (int i = x - 2; i >= x - 5; i--) {
soapy12312 0:218d3fb75950 265 if (stage.positions[i][y] == 3) {
soapy12312 0:218d3fb75950 266 uLCD.filled_circle(i, y, 1, YELLOW);
soapy12312 0:218d3fb75950 267 }
soapy12312 0:218d3fb75950 268 }
soapy12312 0:218d3fb75950 269 }
soapy12312 0:218d3fb75950 270
soapy12312 0:218d3fb75950 271 // Draw the ghost in its new position
soapy12312 0:218d3fb75950 272 draw(x, y);
soapy12312 0:218d3fb75950 273 // If the space to the right is not a valid positions
soapy12312 0:218d3fb75950 274 } else if (stage.positions[x + 1][y] == 0) {
soapy12312 0:218d3fb75950 275 // The ghost is immobile
soapy12312 0:218d3fb75950 276 immobile = true;
soapy12312 0:218d3fb75950 277 wait(0.03);
soapy12312 0:218d3fb75950 278 }
soapy12312 0:218d3fb75950 279
soapy12312 0:218d3fb75950 280 // If the rightmost position is reached
soapy12312 0:218d3fb75950 281 if (x == 124) {
soapy12312 0:218d3fb75950 282 // The ghost is mobile
soapy12312 0:218d3fb75950 283 immobile = false;
soapy12312 0:218d3fb75950 284 // Erase the ghost from its current position
soapy12312 0:218d3fb75950 285 erase(x, y);
soapy12312 0:218d3fb75950 286 // Set the ghost's x-coordinate to 4
soapy12312 0:218d3fb75950 287 x = 4;
soapy12312 0:218d3fb75950 288
soapy12312 0:218d3fb75950 289 // If passed over a pac dot
soapy12312 0:218d3fb75950 290 if (stage.positions[124][68] == 2) {
soapy12312 0:218d3fb75950 291 // Redraw the pac dot
soapy12312 0:218d3fb75950 292 uLCD.pixel(124, 68, YELLOW);
soapy12312 0:218d3fb75950 293 }
soapy12312 0:218d3fb75950 294
soapy12312 0:218d3fb75950 295 // Draw the ghost in its new position
soapy12312 0:218d3fb75950 296 draw(x, y);
soapy12312 0:218d3fb75950 297 }
soapy12312 0:218d3fb75950 298
soapy12312 0:218d3fb75950 299 // If Pac-Man's invincibility status changed
soapy12312 0:218d3fb75950 300 if (pacman.powerUpChanged == true) {
soapy12312 0:218d3fb75950 301 // Change the color of the ghost
soapy12312 0:218d3fb75950 302 draw(x, y);
soapy12312 0:218d3fb75950 303 // Reset Pac-Man's invincibility status change
soapy12312 0:218d3fb75950 304 pacman.powerUpChanged = false;
soapy12312 0:218d3fb75950 305 }
soapy12312 0:218d3fb75950 306
soapy12312 0:218d3fb75950 307 // Set the ghost's next direction
soapy12312 0:218d3fb75950 308 switch (nextDirection) {
soapy12312 0:218d3fb75950 309 case FACEDOWN:
soapy12312 0:218d3fb75950 310 if (stage.positions[x][y + 1] != 0) {
soapy12312 0:218d3fb75950 311 direction = nextDirection;
soapy12312 0:218d3fb75950 312 }
soapy12312 0:218d3fb75950 313
soapy12312 0:218d3fb75950 314 break;
soapy12312 0:218d3fb75950 315 case FACELEFT:
soapy12312 0:218d3fb75950 316 if (stage.positions[x - 1][y] != 0) {
soapy12312 0:218d3fb75950 317 direction = nextDirection;
soapy12312 0:218d3fb75950 318 }
soapy12312 0:218d3fb75950 319
soapy12312 0:218d3fb75950 320 break;
soapy12312 0:218d3fb75950 321 case FACEUP:
soapy12312 0:218d3fb75950 322 if (stage.positions[x][y - 1] != 0) {
soapy12312 0:218d3fb75950 323 direction = nextDirection;
soapy12312 0:218d3fb75950 324 }
soapy12312 0:218d3fb75950 325
soapy12312 0:218d3fb75950 326 break;
soapy12312 0:218d3fb75950 327 default:
soapy12312 0:218d3fb75950 328 break;
soapy12312 0:218d3fb75950 329 }
soapy12312 0:218d3fb75950 330 }
soapy12312 0:218d3fb75950 331
soapy12312 0:218d3fb75950 332 // Move the ghost down
soapy12312 0:218d3fb75950 333 void moveDown() {
soapy12312 0:218d3fb75950 334 // If the space in the downward direction is a valid position
soapy12312 0:218d3fb75950 335 if (stage.positions[x][y + 1] != 0) {
soapy12312 0:218d3fb75950 336 // The ghost is mobile
soapy12312 0:218d3fb75950 337 immobile = false;
soapy12312 0:218d3fb75950 338 // Erase the ghost from its current position
soapy12312 0:218d3fb75950 339 erase(x, y);
soapy12312 0:218d3fb75950 340 // Increment the ghost's y-coordinate
soapy12312 0:218d3fb75950 341 y++;
soapy12312 0:218d3fb75950 342
soapy12312 0:218d3fb75950 343 // If passed over a pac dot
soapy12312 0:218d3fb75950 344 if (stage.positions[x][y - 4] == 2) {
soapy12312 0:218d3fb75950 345 // Redraw the pac dot
soapy12312 0:218d3fb75950 346 uLCD.pixel(x, y - 4, YELLOW);
soapy12312 0:218d3fb75950 347 // If passed over a big pac dot
soapy12312 0:218d3fb75950 348 } else {
soapy12312 0:218d3fb75950 349 // Redraw the big pac dot
soapy12312 0:218d3fb75950 350 for (int j = y - 2; j >= y - 5; j--) {
soapy12312 0:218d3fb75950 351 if (stage.positions[x][j] == 3) {
soapy12312 0:218d3fb75950 352 uLCD.filled_circle(x, j, 1, YELLOW);
soapy12312 0:218d3fb75950 353 }
soapy12312 0:218d3fb75950 354 }
soapy12312 0:218d3fb75950 355 }
soapy12312 0:218d3fb75950 356
soapy12312 0:218d3fb75950 357 // Draw the ghost in its new position
soapy12312 0:218d3fb75950 358 draw(x, y);
soapy12312 0:218d3fb75950 359 // If the space in the downward direction is not a valid position
soapy12312 0:218d3fb75950 360 } else {
soapy12312 0:218d3fb75950 361 // The ghost is immobile
soapy12312 0:218d3fb75950 362 immobile = true;
soapy12312 0:218d3fb75950 363 wait(0.03);
soapy12312 0:218d3fb75950 364 }
soapy12312 0:218d3fb75950 365
soapy12312 0:218d3fb75950 366 // If Pac-Man's invincibility status changed
soapy12312 0:218d3fb75950 367 if (pacman.powerUpChanged == true) {
soapy12312 0:218d3fb75950 368 // Change the color of the ghost
soapy12312 0:218d3fb75950 369 draw(x, y);
soapy12312 0:218d3fb75950 370 // Reset Pac-Man's invincibility status change
soapy12312 0:218d3fb75950 371 pacman.powerUpChanged = false;
soapy12312 0:218d3fb75950 372 }
soapy12312 0:218d3fb75950 373
soapy12312 0:218d3fb75950 374 // Set the ghost's next direction
soapy12312 0:218d3fb75950 375 switch (nextDirection) {
soapy12312 0:218d3fb75950 376 case FACERIGHT:
soapy12312 0:218d3fb75950 377 if (stage.positions[x + 1][y] != 0) {
soapy12312 0:218d3fb75950 378 direction = nextDirection;
soapy12312 0:218d3fb75950 379 }
soapy12312 0:218d3fb75950 380
soapy12312 0:218d3fb75950 381 break;
soapy12312 0:218d3fb75950 382 case FACELEFT:
soapy12312 0:218d3fb75950 383 if (stage.positions[x - 1][y] != 0) {
soapy12312 0:218d3fb75950 384 direction = nextDirection;
soapy12312 0:218d3fb75950 385 }
soapy12312 0:218d3fb75950 386
soapy12312 0:218d3fb75950 387 break;
soapy12312 0:218d3fb75950 388 case FACEUP:
soapy12312 0:218d3fb75950 389 if (stage.positions[x][y - 1] != 0) {
soapy12312 0:218d3fb75950 390 direction = nextDirection;
soapy12312 0:218d3fb75950 391 }
soapy12312 0:218d3fb75950 392
soapy12312 0:218d3fb75950 393 break;
soapy12312 0:218d3fb75950 394 default:
soapy12312 0:218d3fb75950 395 break;
soapy12312 0:218d3fb75950 396 }
soapy12312 0:218d3fb75950 397 }
soapy12312 0:218d3fb75950 398
soapy12312 0:218d3fb75950 399 // Move the ghost left
soapy12312 0:218d3fb75950 400 void moveLeft() {
soapy12312 0:218d3fb75950 401 // If the space to the left is a valid position and is not the leftmost space
soapy12312 0:218d3fb75950 402 if ((stage.positions[x - 1][y] != 0) && (x != 4)) {
soapy12312 0:218d3fb75950 403 // The ghost is mobile
soapy12312 0:218d3fb75950 404 immobile = false;
soapy12312 0:218d3fb75950 405 // Erase the ghost from its current position
soapy12312 0:218d3fb75950 406 erase(x, y);
soapy12312 0:218d3fb75950 407 // Decrement the ghost's x-coordinate
soapy12312 0:218d3fb75950 408 x--;
soapy12312 0:218d3fb75950 409
soapy12312 0:218d3fb75950 410 // If passed over a pac dot
soapy12312 0:218d3fb75950 411 if (stage.positions[x + 4][y] == 2) {
soapy12312 0:218d3fb75950 412 // Redraw the pac dot
soapy12312 0:218d3fb75950 413 uLCD.pixel(x + 4, y, YELLOW);
soapy12312 0:218d3fb75950 414 // If passed over a big pac dot
soapy12312 0:218d3fb75950 415 } else {
soapy12312 0:218d3fb75950 416 // Redraw the big pac dot
soapy12312 0:218d3fb75950 417 for (int i = x + 2; i <= x + 5; i++) {
soapy12312 0:218d3fb75950 418 if (stage.positions[i][y] == 3) {
soapy12312 0:218d3fb75950 419 uLCD.filled_circle(i, y, 1, YELLOW);
soapy12312 0:218d3fb75950 420 }
soapy12312 0:218d3fb75950 421 }
soapy12312 0:218d3fb75950 422 }
soapy12312 0:218d3fb75950 423
soapy12312 0:218d3fb75950 424 // Draw the ghost in its new position
soapy12312 0:218d3fb75950 425 draw(x, y);
soapy12312 0:218d3fb75950 426 // If the space to the left is not a valid position
soapy12312 0:218d3fb75950 427 } else if (stage.positions[x - 1][y] == 0) {
soapy12312 0:218d3fb75950 428 // The ghost is immobile
soapy12312 0:218d3fb75950 429 immobile = true;
soapy12312 0:218d3fb75950 430 wait(0.03);
soapy12312 0:218d3fb75950 431 }
soapy12312 0:218d3fb75950 432
soapy12312 0:218d3fb75950 433 // If the leftmost position is reached
soapy12312 0:218d3fb75950 434 if (x == 4) {
soapy12312 0:218d3fb75950 435 // The ghost is mobile
soapy12312 0:218d3fb75950 436 immobile = false;
soapy12312 0:218d3fb75950 437 // Erase the ghost from its current position
soapy12312 0:218d3fb75950 438 erase(x, y);
soapy12312 0:218d3fb75950 439 // Set the ghost's x-coordinate to 124
soapy12312 0:218d3fb75950 440 x = 124;
soapy12312 0:218d3fb75950 441
soapy12312 0:218d3fb75950 442 // If passed over a pac dot
soapy12312 0:218d3fb75950 443 if (stage.positions[4][68] == 2) {
soapy12312 0:218d3fb75950 444 // Redraw the pac dot
soapy12312 0:218d3fb75950 445 uLCD.pixel(4, 68, YELLOW);
soapy12312 0:218d3fb75950 446 }
soapy12312 0:218d3fb75950 447
soapy12312 0:218d3fb75950 448 // Draw the ghost in its new position
soapy12312 0:218d3fb75950 449 draw(x, y);
soapy12312 0:218d3fb75950 450 }
soapy12312 0:218d3fb75950 451
soapy12312 0:218d3fb75950 452 // If Pac-Man's invincibility status changed
soapy12312 0:218d3fb75950 453 if (pacman.powerUpChanged == true) {
soapy12312 0:218d3fb75950 454 // Change the color of the ghost
soapy12312 0:218d3fb75950 455 draw(x, y);
soapy12312 0:218d3fb75950 456 // Reset Pac-Man's invincibility status change
soapy12312 0:218d3fb75950 457 pacman.powerUpChanged = false;
soapy12312 0:218d3fb75950 458 }
soapy12312 0:218d3fb75950 459
soapy12312 0:218d3fb75950 460 // Set the ghost's next direction
soapy12312 0:218d3fb75950 461 switch (nextDirection) {
soapy12312 0:218d3fb75950 462 case FACERIGHT:
soapy12312 0:218d3fb75950 463 if (stage.positions[x + 1][y] != 0) {
soapy12312 0:218d3fb75950 464 direction = nextDirection;
soapy12312 0:218d3fb75950 465 }
soapy12312 0:218d3fb75950 466
soapy12312 0:218d3fb75950 467 break;
soapy12312 0:218d3fb75950 468 case FACEDOWN:
soapy12312 0:218d3fb75950 469 if (stage.positions[x][y + 1] != 0) {
soapy12312 0:218d3fb75950 470 direction = nextDirection;
soapy12312 0:218d3fb75950 471 }
soapy12312 0:218d3fb75950 472
soapy12312 0:218d3fb75950 473 break;
soapy12312 0:218d3fb75950 474 case FACEUP:
soapy12312 0:218d3fb75950 475 if (stage.positions[x][y - 1] != 0) {
soapy12312 0:218d3fb75950 476 direction = nextDirection;
soapy12312 0:218d3fb75950 477 }
soapy12312 0:218d3fb75950 478
soapy12312 0:218d3fb75950 479 break;
soapy12312 0:218d3fb75950 480 default:
soapy12312 0:218d3fb75950 481 break;
soapy12312 0:218d3fb75950 482 }
soapy12312 0:218d3fb75950 483 }
soapy12312 0:218d3fb75950 484
soapy12312 0:218d3fb75950 485 // Move the ghost up
soapy12312 0:218d3fb75950 486 void moveUp() {
soapy12312 0:218d3fb75950 487 // If the space in the upward direction is a valid position
soapy12312 0:218d3fb75950 488 if (stage.positions[x][y - 1] != 0) {
soapy12312 0:218d3fb75950 489 // The ghost is mobile
soapy12312 0:218d3fb75950 490 immobile = false;
soapy12312 0:218d3fb75950 491 // Erase the ghost from its current position
soapy12312 0:218d3fb75950 492 erase(x, y);
soapy12312 0:218d3fb75950 493 // Decrement the ghost's y-coordinate
soapy12312 0:218d3fb75950 494 y--;
soapy12312 0:218d3fb75950 495
soapy12312 0:218d3fb75950 496 // If passed over a pac dot
soapy12312 0:218d3fb75950 497 if (stage.positions[x][y + 4] == 2) {
soapy12312 0:218d3fb75950 498 // Redraw the pac dot
soapy12312 0:218d3fb75950 499 uLCD.pixel(x, y + 4, YELLOW);
soapy12312 0:218d3fb75950 500 // If passed over a big pac dot
soapy12312 0:218d3fb75950 501 } else {
soapy12312 0:218d3fb75950 502 // Redraw the big pac dot
soapy12312 0:218d3fb75950 503 for (int j = y + 2; j <= y + 5; j++) {
soapy12312 0:218d3fb75950 504 if (stage.positions[x][j] == 3) {
soapy12312 0:218d3fb75950 505 uLCD.filled_circle(x, j, 1, YELLOW);
soapy12312 0:218d3fb75950 506 }
soapy12312 0:218d3fb75950 507 }
soapy12312 0:218d3fb75950 508 }
soapy12312 0:218d3fb75950 509
soapy12312 0:218d3fb75950 510 // Draw the ghost in its new position
soapy12312 0:218d3fb75950 511 draw(x, y);
soapy12312 0:218d3fb75950 512 // If the space in the upward direction is not a valid position
soapy12312 0:218d3fb75950 513 } else {
soapy12312 0:218d3fb75950 514 // The ghost is immobile
soapy12312 0:218d3fb75950 515 immobile = true;
soapy12312 0:218d3fb75950 516 wait(0.03);
soapy12312 0:218d3fb75950 517 }
soapy12312 0:218d3fb75950 518
soapy12312 0:218d3fb75950 519 // If Pac-Man's invincibility status changed
soapy12312 0:218d3fb75950 520 if (pacman.powerUpChanged == true) {
soapy12312 0:218d3fb75950 521 // Change the color of the ghost
soapy12312 0:218d3fb75950 522 draw(x, y);
soapy12312 0:218d3fb75950 523 // Reset Pac-Man's invincibility status change
soapy12312 0:218d3fb75950 524 pacman.powerUpChanged = false;
soapy12312 0:218d3fb75950 525 }
soapy12312 0:218d3fb75950 526
soapy12312 0:218d3fb75950 527 // Set the ghost's next direction
soapy12312 0:218d3fb75950 528 switch (nextDirection) {
soapy12312 0:218d3fb75950 529 case FACERIGHT:
soapy12312 0:218d3fb75950 530 if (stage.positions[x + 1][y] != 0) {
soapy12312 0:218d3fb75950 531 direction = nextDirection;
soapy12312 0:218d3fb75950 532 }
soapy12312 0:218d3fb75950 533
soapy12312 0:218d3fb75950 534 break;
soapy12312 0:218d3fb75950 535 case FACEDOWN:
soapy12312 0:218d3fb75950 536 if (stage.positions[x][y + 1] != 0) {
soapy12312 0:218d3fb75950 537 direction = nextDirection;
soapy12312 0:218d3fb75950 538 }
soapy12312 0:218d3fb75950 539
soapy12312 0:218d3fb75950 540 break;
soapy12312 0:218d3fb75950 541 case FACELEFT:
soapy12312 0:218d3fb75950 542 if (stage.positions[x - 1][y] != 0) {
soapy12312 0:218d3fb75950 543 direction = nextDirection;
soapy12312 0:218d3fb75950 544 }
soapy12312 0:218d3fb75950 545
soapy12312 0:218d3fb75950 546 break;
soapy12312 0:218d3fb75950 547 default:
soapy12312 0:218d3fb75950 548 break;
soapy12312 0:218d3fb75950 549 }
soapy12312 0:218d3fb75950 550 }
soapy12312 0:218d3fb75950 551 };