Eric Xu / Mbed 2 deprecated Pac-Man

This program simulates a game of Pac-Man that allows for multiplayer. One player controls Pac-Man, while two other players control a red and yellow ghost using different tactile switches.

Dependencies:   4DGL-uLCD-SE PinDetect mbed

Fork of Pac-Man by Eric Xu

Ghost.h@1:839f59c6d021, 2015-10-19 (annotated)

Committer:
soapy12312
Date:
Mon Oct 19 17:51:14 2015 +0000
Revision:
1:839f59c6d021
Parent:
0:8b6686f2d4be 
Multiplayer Pac-Man.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
soapy12312 0:8b6686f2d4be 1 /******************************************************
soapy12312 0:8b6686f2d4be 2 * Author: Yuanzhe Xu
soapy12312 0:8b6686f2d4be 3 * Institution: Georgia Institute of Technology
soapy12312 0:8b6686f2d4be 4 * Date: October 18, 2015
soapy12312 0:8b6686f2d4be 5 *
soapy12312 0:8b6686f2d4be 6 * This header file declares all the functions and
soapy12312 0:8b6686f2d4be 7 * variables needed for the Ghost object. Specific
soapy12312 0:8b6686f2d4be 8 * ghost functionalities can be found in main.cpp.
soapy12312 0:8b6686f2d4be 9 ******************************************************/
soapy12312 0:8b6686f2d4be 10
soapy12312 0:8b6686f2d4be 11 // Ghost class
soapy12312 0:8b6686f2d4be 12 class Ghost {
soapy12312 0:8b6686f2d4be 13 public:
soapy12312 0:8b6686f2d4be 14 // Ghost constructor
soapy12312 0:8b6686f2d4be 15 Ghost(int color, uLCD_4DGL& uLCD, Stage& stage, Pacman& pacman)
soapy12312 0:8b6686f2d4be 16 : color(color), uLCD(uLCD), stage(stage), pacman(pacman) {
soapy12312 0:8b6686f2d4be 17 }
soapy12312 0:8b6686f2d4be 18
soapy12312 0:8b6686f2d4be 19 // Initialize the ghost at the beginning of the game
soapy12312 0:8b6686f2d4be 20 void initialize(int xCoordinate, int yCoordinate, int facingDirection) {
soapy12312 0:8b6686f2d4be 21 startingX = xCoordinate;
soapy12312 0:8b6686f2d4be 22 startingY = yCoordinate;
soapy12312 0:8b6686f2d4be 23 x = xCoordinate;
soapy12312 0:8b6686f2d4be 24 y = yCoordinate;
soapy12312 0:8b6686f2d4be 25 direction = facingDirection;
soapy12312 0:8b6686f2d4be 26 immobile = false;
soapy12312 0:8b6686f2d4be 27 draw(x, y);
soapy12312 0:8b6686f2d4be 28 }
soapy12312 0:8b6686f2d4be 29
soapy12312 0:8b6686f2d4be 30 // Set the next direction
soapy12312 0:8b6686f2d4be 31 void setNextDirection(int next) {
soapy12312 0:8b6686f2d4be 32 previousDirection = (direction + 2) % 4;
soapy12312 0:8b6686f2d4be 33
soapy12312 0:8b6686f2d4be 34 // If the next direction is not its previous direction
soapy12312 0:8b6686f2d4be 35 if (next != previousDirection) {
soapy12312 0:8b6686f2d4be 36 // Set the next direction to next
soapy12312 0:8b6686f2d4be 37 nextDirection = next;
soapy12312 0:8b6686f2d4be 38 }
soapy12312 0:8b6686f2d4be 39 }
soapy12312 0:8b6686f2d4be 40
soapy12312 0:8b6686f2d4be 41 // Move the ghost
soapy12312 0:8b6686f2d4be 42 void move() {
soapy12312 0:8b6686f2d4be 43 // If Pac-Man died
soapy12312 0:8b6686f2d4be 44 if (pacman.dead == true) {
soapy12312 0:8b6686f2d4be 45 // Reset the ghost
soapy12312 0:8b6686f2d4be 46 erase(x, y);
soapy12312 0:8b6686f2d4be 47 reinitialize();
soapy12312 0:8b6686f2d4be 48 pacman.dead = false;
soapy12312 0:8b6686f2d4be 49 }
soapy12312 0:8b6686f2d4be 50
soapy12312 0:8b6686f2d4be 51 // If the ghost is not moving
soapy12312 0:8b6686f2d4be 52 if (immobile == true) {
soapy12312 0:8b6686f2d4be 53 // Reset the ghost
soapy12312 0:8b6686f2d4be 54 erase(x, y);
soapy12312 0:8b6686f2d4be 55 stage.redrawPacDots();
soapy12312 0:8b6686f2d4be 56 reinitialize();
soapy12312 0:8b6686f2d4be 57 }
soapy12312 0:8b6686f2d4be 58
soapy12312 0:8b6686f2d4be 59 // Move the ghost in its current direction
soapy12312 0:8b6686f2d4be 60 switch (direction) {
soapy12312 0:8b6686f2d4be 61 case FACERIGHT:
soapy12312 0:8b6686f2d4be 62 moveRight();
soapy12312 0:8b6686f2d4be 63 break;
soapy12312 0:8b6686f2d4be 64 case FACEDOWN:
soapy12312 0:8b6686f2d4be 65 moveDown();
soapy12312 0:8b6686f2d4be 66 break;
soapy12312 0:8b6686f2d4be 67 case FACELEFT:
soapy12312 0:8b6686f2d4be 68 moveLeft();
soapy12312 0:8b6686f2d4be 69 break;
soapy12312 0:8b6686f2d4be 70 case FACEUP:
soapy12312 0:8b6686f2d4be 71 moveUp();
soapy12312 0:8b6686f2d4be 72 break;
soapy12312 0:8b6686f2d4be 73 default:
soapy12312 0:8b6686f2d4be 74 break;
soapy12312 0:8b6686f2d4be 75 }
soapy12312 0:8b6686f2d4be 76
soapy12312 0:8b6686f2d4be 77 // If Pac-Man and the ghost occupy the same position
soapy12312 0:8b6686f2d4be 78 if ((abs(pacman.x - x) < 5) && (abs(pacman.y - y) < 5)) {
soapy12312 0:8b6686f2d4be 79 // If Pac-Man is not invincible
soapy12312 0:8b6686f2d4be 80 if (pacman.powerUp == 0) {
soapy12312 0:8b6686f2d4be 81 // Reset Pac-Man and the ghost
soapy12312 0:8b6686f2d4be 82 pacman.ghostsEaten = 0;
soapy12312 0:8b6686f2d4be 83 pacman.erase(pacman.x, pacman.y);
soapy12312 0:8b6686f2d4be 84 erase(x, y);
soapy12312 0:8b6686f2d4be 85 pacman.draw(pacman.x, pacman.y);
soapy12312 0:8b6686f2d4be 86 wait(0.5);
soapy12312 0:8b6686f2d4be 87 pacman.die();
soapy12312 0:8b6686f2d4be 88 pacman.dead = true;
soapy12312 0:8b6686f2d4be 89 reinitialize();
soapy12312 0:8b6686f2d4be 90 // If Pac-Man is invincible
soapy12312 0:8b6686f2d4be 91 } else {
soapy12312 0:8b6686f2d4be 92 // Reset the ghost
soapy12312 0:8b6686f2d4be 93 pacman.ghostsEaten++;
soapy12312 0:8b6686f2d4be 94 pacman.score += pacman.ghostsEaten * 200;
soapy12312 0:8b6686f2d4be 95 pacman.scoreChanged = true;
soapy12312 0:8b6686f2d4be 96 erase(x, y);
soapy12312 0:8b6686f2d4be 97 stage.redrawPacDots();
soapy12312 0:8b6686f2d4be 98 pacman.draw(pacman.x, pacman.y);
soapy12312 0:8b6686f2d4be 99 wait(0.5);
soapy12312 0:8b6686f2d4be 100 reinitialize();
soapy12312 0:8b6686f2d4be 101 }
soapy12312 0:8b6686f2d4be 102 }
soapy12312 0:8b6686f2d4be 103 }
soapy12312 0:8b6686f2d4be 104
soapy12312 0:8b6686f2d4be 105
soapy12312 0:8b6686f2d4be 106 private:
soapy12312 0:8b6686f2d4be 107 // The ghost's color
soapy12312 0:8b6686f2d4be 108 int color;
soapy12312 0:8b6686f2d4be 109 // Starting horizontal position
soapy12312 0:8b6686f2d4be 110 int startingX;
soapy12312 0:8b6686f2d4be 111 // Starting vertical position
soapy12312 0:8b6686f2d4be 112 int startingY;
soapy12312 0:8b6686f2d4be 113 // Current horizontal position
soapy12312 0:8b6686f2d4be 114 int x;
soapy12312 0:8b6686f2d4be 115 // Current vertical position
soapy12312 0:8b6686f2d4be 116 int y;
soapy12312 0:8b6686f2d4be 117 // Previous direction
soapy12312 0:8b6686f2d4be 118 int previousDirection;
soapy12312 0:8b6686f2d4be 119 // Current direction
soapy12312 0:8b6686f2d4be 120 int direction;
soapy12312 0:8b6686f2d4be 121 // Next direction
soapy12312 0:8b6686f2d4be 122 int nextDirection;
soapy12312 0:8b6686f2d4be 123 // Ghost resets when immobile is true
soapy12312 0:8b6686f2d4be 124 bool immobile;
soapy12312 0:8b6686f2d4be 125 // uLCD display
soapy12312 0:8b6686f2d4be 126 uLCD_4DGL& uLCD;
soapy12312 0:8b6686f2d4be 127 // Stage reference
soapy12312 0:8b6686f2d4be 128 Stage& stage;
soapy12312 0:8b6686f2d4be 129 // Pacman reference
soapy12312 0:8b6686f2d4be 130 Pacman& pacman;
soapy12312 0:8b6686f2d4be 131
soapy12312 0:8b6686f2d4be 132 // Reset function for each ghost
soapy12312 0:8b6686f2d4be 133 void reinitialize() {
soapy12312 0:8b6686f2d4be 134 // Red ghost reset
soapy12312 0:8b6686f2d4be 135 if (color == RED) {
soapy12312 0:8b6686f2d4be 136 initialize(startingX, startingY, FACELEFT);
soapy12312 0:8b6686f2d4be 137 // Yellow ghost reset
soapy12312 0:8b6686f2d4be 138 } else if (color == YELLOW) {
soapy12312 0:8b6686f2d4be 139 initialize(startingX, startingY, FACERIGHT);
soapy12312 0:8b6686f2d4be 140 }
soapy12312 0:8b6686f2d4be 141 }
soapy12312 0:8b6686f2d4be 142
soapy12312 0:8b6686f2d4be 143 // Draw the ghost based on its direction
soapy12312 0:8b6686f2d4be 144 void draw(int xCoordinate, int yCoordinate) {
soapy12312 0:8b6686f2d4be 145 // Outer bound rectangular coordinates of the ghost
soapy12312 0:8b6686f2d4be 146 int x1 = xCoordinate - 3;
soapy12312 0:8b6686f2d4be 147 int x2 = xCoordinate + 3;
soapy12312 0:8b6686f2d4be 148 int y1 = yCoordinate - 3;
soapy12312 0:8b6686f2d4be 149 int y2 = yCoordinate + 3;
soapy12312 0:8b6686f2d4be 150
soapy12312 0:8b6686f2d4be 151 // If Pac-Man is currently invincible
soapy12312 0:8b6686f2d4be 152 if (pacman.powerUp > 0) {
soapy12312 0:8b6686f2d4be 153 // Draw the ghost in blue
soapy12312 0:8b6686f2d4be 154 uLCD.filled_rectangle(x1, y1, x2, y2, BLUE);
soapy12312 0:8b6686f2d4be 155 // If Pac-Man is not currently invincible
soapy12312 0:8b6686f2d4be 156 } else {
soapy12312 0:8b6686f2d4be 157 // Draw the ghost in its original color
soapy12312 0:8b6686f2d4be 158 uLCD.filled_rectangle(x1, y1, x2, y2, color);
soapy12312 0:8b6686f2d4be 159 }
soapy12312 0:8b6686f2d4be 160
soapy12312 0:8b6686f2d4be 161 // Specify the pixels
soapy12312 0:8b6686f2d4be 162 uLCD.pixel(x1, y1, BLACK);
soapy12312 0:8b6686f2d4be 163 uLCD.pixel(x2, y1, BLACK);
soapy12312 0:8b6686f2d4be 164 uLCD.pixel(xCoordinate - 2, y2, BLACK);
soapy12312 0:8b6686f2d4be 165 uLCD.pixel(xCoordinate, y2, BLACK);
soapy12312 0:8b6686f2d4be 166 uLCD.pixel(xCoordinate + 2, y2, BLACK);
soapy12312 0:8b6686f2d4be 167 uLCD.pixel(x1, yCoordinate - 1, WHITE);
soapy12312 0:8b6686f2d4be 168 uLCD.pixel(xCoordinate - 2, yCoordinate - 2, WHITE);
soapy12312 0:8b6686f2d4be 169 uLCD.pixel(xCoordinate - 2, yCoordinate - 1, WHITE);
soapy12312 0:8b6686f2d4be 170 uLCD.pixel(xCoordinate - 2, yCoordinate, WHITE);
soapy12312 0:8b6686f2d4be 171 uLCD.pixel(xCoordinate - 1, yCoordinate - 1, WHITE);
soapy12312 0:8b6686f2d4be 172 uLCD.pixel(x2, yCoordinate - 1, WHITE);
soapy12312 0:8b6686f2d4be 173 uLCD.pixel(xCoordinate + 2, yCoordinate - 2, WHITE);
soapy12312 0:8b6686f2d4be 174 uLCD.pixel(xCoordinate + 2, yCoordinate - 1, WHITE);
soapy12312 0:8b6686f2d4be 175 uLCD.pixel(xCoordinate + 2, yCoordinate, WHITE);
soapy12312 0:8b6686f2d4be 176 uLCD.pixel(xCoordinate + 1, yCoordinate - 1, WHITE);
soapy12312 0:8b6686f2d4be 177
soapy12312 0:8b6686f2d4be 178 // Draw the ghost's eyes based on its current direction
soapy12312 0:8b6686f2d4be 179 switch (direction) {
soapy12312 0:8b6686f2d4be 180 case FACERIGHT:
soapy12312 0:8b6686f2d4be 181 uLCD.pixel(xCoordinate - 1, yCoordinate - 1, BLACK);
soapy12312 0:8b6686f2d4be 182 uLCD.pixel(x2, yCoordinate - 1, BLACK);
soapy12312 0:8b6686f2d4be 183 break;
soapy12312 0:8b6686f2d4be 184 case FACEDOWN:
soapy12312 0:8b6686f2d4be 185 uLCD.pixel(xCoordinate - 2, yCoordinate, BLACK);
soapy12312 0:8b6686f2d4be 186 uLCD.pixel(xCoordinate + 2, yCoordinate, BLACK);
soapy12312 0:8b6686f2d4be 187 break;
soapy12312 0:8b6686f2d4be 188 case FACELEFT:
soapy12312 0:8b6686f2d4be 189 uLCD.pixel(x1, yCoordinate - 1, BLACK);
soapy12312 0:8b6686f2d4be 190 uLCD.pixel(xCoordinate + 1, yCoordinate - 1, BLACK);
soapy12312 0:8b6686f2d4be 191 break;
soapy12312 0:8b6686f2d4be 192 case FACEUP:
soapy12312 0:8b6686f2d4be 193 uLCD.pixel(xCoordinate - 2, yCoordinate - 2, BLACK);
soapy12312 0:8b6686f2d4be 194 uLCD.pixel(xCoordinate + 2, yCoordinate - 2, BLACK);
soapy12312 0:8b6686f2d4be 195 break;
soapy12312 0:8b6686f2d4be 196 default:
soapy12312 0:8b6686f2d4be 197 break;
soapy12312 0:8b6686f2d4be 198 }
soapy12312 0:8b6686f2d4be 199 }
soapy12312 0:8b6686f2d4be 200
soapy12312 0:8b6686f2d4be 201 // Erase the ghost from the given position
soapy12312 0:8b6686f2d4be 202 void erase(int xCoordinate, int yCoordinate) {
soapy12312 0:8b6686f2d4be 203 int x1 = xCoordinate - 3;
soapy12312 0:8b6686f2d4be 204 int x2 = xCoordinate + 3;
soapy12312 0:8b6686f2d4be 205 int y1 = yCoordinate - 3;
soapy12312 0:8b6686f2d4be 206 int y2 = yCoordinate + 3;
soapy12312 0:8b6686f2d4be 207 uLCD.filled_rectangle(x1, y1, x2, y2, BLACK);
soapy12312 0:8b6686f2d4be 208 }
soapy12312 0:8b6686f2d4be 209
soapy12312 0:8b6686f2d4be 210 // Move the ghost right
soapy12312 0:8b6686f2d4be 211 void moveRight() {
soapy12312 0:8b6686f2d4be 212 // If the space to the right is a valid position and is not the rightmost space
soapy12312 0:8b6686f2d4be 213 if ((stage.positions[x + 1][y] != 0) && (x != 124)) {
soapy12312 0:8b6686f2d4be 214 // The ghost is mobile
soapy12312 0:8b6686f2d4be 215 immobile = false;
soapy12312 0:8b6686f2d4be 216 // Erase the ghost from its current position
soapy12312 0:8b6686f2d4be 217 erase(x, y);
soapy12312 0:8b6686f2d4be 218 // Increment the ghost's x-coordinate
soapy12312 0:8b6686f2d4be 219 x++;
soapy12312 0:8b6686f2d4be 220
soapy12312 0:8b6686f2d4be 221 // If passed over a pac dot
soapy12312 0:8b6686f2d4be 222 if (stage.positions[x - 4][y] == 2) {
soapy12312 0:8b6686f2d4be 223 // Redraw the pac dot
soapy12312 0:8b6686f2d4be 224 uLCD.pixel(x - 4, y, YELLOW);
soapy12312 0:8b6686f2d4be 225 // If passed over a big pac dot
soapy12312 0:8b6686f2d4be 226 } else {
soapy12312 0:8b6686f2d4be 227 // Redraw the big pac dot
soapy12312 0:8b6686f2d4be 228 for (int i = x - 2; i >= x - 5; i--) {
soapy12312 0:8b6686f2d4be 229 if (stage.positions[i][y] == 3) {
soapy12312 0:8b6686f2d4be 230 uLCD.filled_circle(i, y, 1, YELLOW);
soapy12312 0:8b6686f2d4be 231 }
soapy12312 0:8b6686f2d4be 232 }
soapy12312 0:8b6686f2d4be 233 }
soapy12312 0:8b6686f2d4be 234
soapy12312 0:8b6686f2d4be 235 // Draw the ghost in its new position
soapy12312 0:8b6686f2d4be 236 draw(x, y);
soapy12312 0:8b6686f2d4be 237 // If the space to the right is not a valid positions
soapy12312 0:8b6686f2d4be 238 } else if (stage.positions[x + 1][y] == 0) {
soapy12312 0:8b6686f2d4be 239 // The ghost is immobile
soapy12312 0:8b6686f2d4be 240 immobile = true;
soapy12312 0:8b6686f2d4be 241 wait(0.03);
soapy12312 0:8b6686f2d4be 242 }
soapy12312 0:8b6686f2d4be 243
soapy12312 0:8b6686f2d4be 244 // If the rightmost position is reached
soapy12312 0:8b6686f2d4be 245 if (x == 124) {
soapy12312 0:8b6686f2d4be 246 // The ghost is mobile
soapy12312 0:8b6686f2d4be 247 immobile = false;
soapy12312 0:8b6686f2d4be 248 // Erase the ghost from its current position
soapy12312 0:8b6686f2d4be 249 erase(x, y);
soapy12312 0:8b6686f2d4be 250 // Set the ghost's x-coordinate to 4
soapy12312 0:8b6686f2d4be 251 x = 4;
soapy12312 0:8b6686f2d4be 252
soapy12312 0:8b6686f2d4be 253 // If passed over a pac dot
soapy12312 0:8b6686f2d4be 254 if (stage.positions[124][68] == 2) {
soapy12312 0:8b6686f2d4be 255 // Redraw the pac dot
soapy12312 0:8b6686f2d4be 256 uLCD.pixel(124, 68, YELLOW);
soapy12312 0:8b6686f2d4be 257 }
soapy12312 0:8b6686f2d4be 258
soapy12312 0:8b6686f2d4be 259 // Draw the ghost in its new position
soapy12312 0:8b6686f2d4be 260 draw(x, y);
soapy12312 0:8b6686f2d4be 261 }
soapy12312 0:8b6686f2d4be 262
soapy12312 0:8b6686f2d4be 263 // If Pac-Man's invincibility status changed
soapy12312 0:8b6686f2d4be 264 if (pacman.powerUpChanged == true) {
soapy12312 0:8b6686f2d4be 265 // Change the color of the ghost
soapy12312 0:8b6686f2d4be 266 draw(x, y);
soapy12312 0:8b6686f2d4be 267 // Reset Pac-Man's invincibility status change
soapy12312 0:8b6686f2d4be 268 pacman.powerUpChanged = false;
soapy12312 0:8b6686f2d4be 269 }
soapy12312 0:8b6686f2d4be 270
soapy12312 0:8b6686f2d4be 271 // Set the ghost's next direction
soapy12312 0:8b6686f2d4be 272 switch (nextDirection) {
soapy12312 0:8b6686f2d4be 273 case FACEDOWN:
soapy12312 0:8b6686f2d4be 274 if (stage.positions[x][y + 1] != 0) {
soapy12312 0:8b6686f2d4be 275 direction = nextDirection;
soapy12312 0:8b6686f2d4be 276 }
soapy12312 0:8b6686f2d4be 277
soapy12312 0:8b6686f2d4be 278 break;
soapy12312 0:8b6686f2d4be 279 case FACELEFT:
soapy12312 0:8b6686f2d4be 280 if (stage.positions[x - 1][y] != 0) {
soapy12312 0:8b6686f2d4be 281 direction = nextDirection;
soapy12312 0:8b6686f2d4be 282 }
soapy12312 0:8b6686f2d4be 283
soapy12312 0:8b6686f2d4be 284 break;
soapy12312 0:8b6686f2d4be 285 case FACEUP:
soapy12312 0:8b6686f2d4be 286 if (stage.positions[x][y - 1] != 0) {
soapy12312 0:8b6686f2d4be 287 direction = nextDirection;
soapy12312 0:8b6686f2d4be 288 }
soapy12312 0:8b6686f2d4be 289
soapy12312 0:8b6686f2d4be 290 break;
soapy12312 0:8b6686f2d4be 291 default:
soapy12312 0:8b6686f2d4be 292 break;
soapy12312 0:8b6686f2d4be 293 }
soapy12312 0:8b6686f2d4be 294 }
soapy12312 0:8b6686f2d4be 295
soapy12312 0:8b6686f2d4be 296 // Move the ghost down
soapy12312 0:8b6686f2d4be 297 void moveDown() {
soapy12312 0:8b6686f2d4be 298 // If the space in the downward direction is a valid position
soapy12312 0:8b6686f2d4be 299 if (stage.positions[x][y + 1] != 0) {
soapy12312 0:8b6686f2d4be 300 // The ghost is mobile
soapy12312 0:8b6686f2d4be 301 immobile = false;
soapy12312 0:8b6686f2d4be 302 // Erase the ghost from its current position
soapy12312 0:8b6686f2d4be 303 erase(x, y);
soapy12312 0:8b6686f2d4be 304 // Increment the ghost's y-coordinate
soapy12312 0:8b6686f2d4be 305 y++;
soapy12312 0:8b6686f2d4be 306
soapy12312 0:8b6686f2d4be 307 // If passed over a pac dot
soapy12312 0:8b6686f2d4be 308 if (stage.positions[x][y - 4] == 2) {
soapy12312 0:8b6686f2d4be 309 // Redraw the pac dot
soapy12312 0:8b6686f2d4be 310 uLCD.pixel(x, y - 4, YELLOW);
soapy12312 0:8b6686f2d4be 311 // If passed over a big pac dot
soapy12312 0:8b6686f2d4be 312 } else {
soapy12312 0:8b6686f2d4be 313 // Redraw the big pac dot
soapy12312 0:8b6686f2d4be 314 for (int j = y - 2; j >= y - 5; j--) {
soapy12312 0:8b6686f2d4be 315 if (stage.positions[x][j] == 3) {
soapy12312 0:8b6686f2d4be 316 uLCD.filled_circle(x, j, 1, YELLOW);
soapy12312 0:8b6686f2d4be 317 }
soapy12312 0:8b6686f2d4be 318 }
soapy12312 0:8b6686f2d4be 319 }
soapy12312 0:8b6686f2d4be 320
soapy12312 0:8b6686f2d4be 321 // Draw the ghost in its new position
soapy12312 0:8b6686f2d4be 322 draw(x, y);
soapy12312 0:8b6686f2d4be 323 // If the space in the downward direction is not a valid position
soapy12312 0:8b6686f2d4be 324 } else {
soapy12312 0:8b6686f2d4be 325 // The ghost is immobile
soapy12312 0:8b6686f2d4be 326 immobile = true;
soapy12312 0:8b6686f2d4be 327 wait(0.03);
soapy12312 0:8b6686f2d4be 328 }
soapy12312 0:8b6686f2d4be 329
soapy12312 0:8b6686f2d4be 330 // If Pac-Man's invincibility status changed
soapy12312 0:8b6686f2d4be 331 if (pacman.powerUpChanged == true) {
soapy12312 0:8b6686f2d4be 332 // Change the color of the ghost
soapy12312 0:8b6686f2d4be 333 draw(x, y);
soapy12312 0:8b6686f2d4be 334 // Reset Pac-Man's invincibility status change
soapy12312 0:8b6686f2d4be 335 pacman.powerUpChanged = false;
soapy12312 0:8b6686f2d4be 336 }
soapy12312 0:8b6686f2d4be 337
soapy12312 0:8b6686f2d4be 338 // Set the ghost's next direction
soapy12312 0:8b6686f2d4be 339 switch (nextDirection) {
soapy12312 0:8b6686f2d4be 340 case FACERIGHT:
soapy12312 0:8b6686f2d4be 341 if (stage.positions[x + 1][y] != 0) {
soapy12312 0:8b6686f2d4be 342 direction = nextDirection;
soapy12312 0:8b6686f2d4be 343 }
soapy12312 0:8b6686f2d4be 344
soapy12312 0:8b6686f2d4be 345 break;
soapy12312 0:8b6686f2d4be 346 case FACELEFT:
soapy12312 0:8b6686f2d4be 347 if (stage.positions[x - 1][y] != 0) {
soapy12312 0:8b6686f2d4be 348 direction = nextDirection;
soapy12312 0:8b6686f2d4be 349 }
soapy12312 0:8b6686f2d4be 350
soapy12312 0:8b6686f2d4be 351 break;
soapy12312 0:8b6686f2d4be 352 case FACEUP:
soapy12312 0:8b6686f2d4be 353 if (stage.positions[x][y - 1] != 0) {
soapy12312 0:8b6686f2d4be 354 direction = nextDirection;
soapy12312 0:8b6686f2d4be 355 }
soapy12312 0:8b6686f2d4be 356
soapy12312 0:8b6686f2d4be 357 break;
soapy12312 0:8b6686f2d4be 358 default:
soapy12312 0:8b6686f2d4be 359 break;
soapy12312 0:8b6686f2d4be 360 }
soapy12312 0:8b6686f2d4be 361 }
soapy12312 0:8b6686f2d4be 362
soapy12312 0:8b6686f2d4be 363 // Move the ghost left
soapy12312 0:8b6686f2d4be 364 void moveLeft() {
soapy12312 0:8b6686f2d4be 365 // If the space to the left is a valid position and is not the leftmost space
soapy12312 0:8b6686f2d4be 366 if ((stage.positions[x - 1][y] != 0) && (x != 4)) {
soapy12312 0:8b6686f2d4be 367 // The ghost is mobile
soapy12312 0:8b6686f2d4be 368 immobile = false;
soapy12312 0:8b6686f2d4be 369 // Erase the ghost from its current position
soapy12312 0:8b6686f2d4be 370 erase(x, y);
soapy12312 0:8b6686f2d4be 371 // Decrement the ghost's x-coordinate
soapy12312 0:8b6686f2d4be 372 x--;
soapy12312 0:8b6686f2d4be 373
soapy12312 0:8b6686f2d4be 374 // If passed over a pac dot
soapy12312 0:8b6686f2d4be 375 if (stage.positions[x + 4][y] == 2) {
soapy12312 0:8b6686f2d4be 376 // Redraw the pac dot
soapy12312 0:8b6686f2d4be 377 uLCD.pixel(x + 4, y, YELLOW);
soapy12312 0:8b6686f2d4be 378 // If passed over a big pac dot
soapy12312 0:8b6686f2d4be 379 } else {
soapy12312 0:8b6686f2d4be 380 // Redraw the big pac dot
soapy12312 0:8b6686f2d4be 381 for (int i = x + 2; i <= x + 5; i++) {
soapy12312 0:8b6686f2d4be 382 if (stage.positions[i][y] == 3) {
soapy12312 0:8b6686f2d4be 383 uLCD.filled_circle(i, y, 1, YELLOW);
soapy12312 0:8b6686f2d4be 384 }
soapy12312 0:8b6686f2d4be 385 }
soapy12312 0:8b6686f2d4be 386 }
soapy12312 0:8b6686f2d4be 387
soapy12312 0:8b6686f2d4be 388 // Draw the ghost in its new position
soapy12312 0:8b6686f2d4be 389 draw(x, y);
soapy12312 0:8b6686f2d4be 390 // If the space to the left is not a valid position
soapy12312 0:8b6686f2d4be 391 } else if (stage.positions[x - 1][y] == 0) {
soapy12312 0:8b6686f2d4be 392 // The ghost is immobile
soapy12312 0:8b6686f2d4be 393 immobile = true;
soapy12312 0:8b6686f2d4be 394 wait(0.03);
soapy12312 0:8b6686f2d4be 395 }
soapy12312 0:8b6686f2d4be 396
soapy12312 0:8b6686f2d4be 397 // If the leftmost position is reached
soapy12312 0:8b6686f2d4be 398 if (x == 4) {
soapy12312 0:8b6686f2d4be 399 // The ghost is mobile
soapy12312 0:8b6686f2d4be 400 immobile = false;
soapy12312 0:8b6686f2d4be 401 // Erase the ghost from its current position
soapy12312 0:8b6686f2d4be 402 erase(x, y);
soapy12312 0:8b6686f2d4be 403 // Set the ghost's x-coordinate to 124
soapy12312 0:8b6686f2d4be 404 x = 124;
soapy12312 0:8b6686f2d4be 405
soapy12312 0:8b6686f2d4be 406 // If passed over a pac dot
soapy12312 0:8b6686f2d4be 407 if (stage.positions[4][68] == 2) {
soapy12312 0:8b6686f2d4be 408 // Redraw the pac dot
soapy12312 0:8b6686f2d4be 409 uLCD.pixel(4, 68, YELLOW);
soapy12312 0:8b6686f2d4be 410 }
soapy12312 0:8b6686f2d4be 411
soapy12312 0:8b6686f2d4be 412 // Draw the ghost in its new position
soapy12312 0:8b6686f2d4be 413 draw(x, y);
soapy12312 0:8b6686f2d4be 414 }
soapy12312 0:8b6686f2d4be 415
soapy12312 0:8b6686f2d4be 416 // If Pac-Man's invincibility status changed
soapy12312 0:8b6686f2d4be 417 if (pacman.powerUpChanged == true) {
soapy12312 0:8b6686f2d4be 418 // Change the color of the ghost
soapy12312 0:8b6686f2d4be 419 draw(x, y);
soapy12312 0:8b6686f2d4be 420 // Reset Pac-Man's invincibility status change
soapy12312 0:8b6686f2d4be 421 pacman.powerUpChanged = false;
soapy12312 0:8b6686f2d4be 422 }
soapy12312 0:8b6686f2d4be 423
soapy12312 0:8b6686f2d4be 424 // Set the ghost's next direction
soapy12312 0:8b6686f2d4be 425 switch (nextDirection) {
soapy12312 0:8b6686f2d4be 426 case FACERIGHT:
soapy12312 0:8b6686f2d4be 427 if (stage.positions[x + 1][y] != 0) {
soapy12312 0:8b6686f2d4be 428 direction = nextDirection;
soapy12312 0:8b6686f2d4be 429 }
soapy12312 0:8b6686f2d4be 430
soapy12312 0:8b6686f2d4be 431 break;
soapy12312 0:8b6686f2d4be 432 case FACEDOWN:
soapy12312 0:8b6686f2d4be 433 if (stage.positions[x][y + 1] != 0) {
soapy12312 0:8b6686f2d4be 434 direction = nextDirection;
soapy12312 0:8b6686f2d4be 435 }
soapy12312 0:8b6686f2d4be 436
soapy12312 0:8b6686f2d4be 437 break;
soapy12312 0:8b6686f2d4be 438 case FACEUP:
soapy12312 0:8b6686f2d4be 439 if (stage.positions[x][y - 1] != 0) {
soapy12312 0:8b6686f2d4be 440 direction = nextDirection;
soapy12312 0:8b6686f2d4be 441 }
soapy12312 0:8b6686f2d4be 442
soapy12312 0:8b6686f2d4be 443 break;
soapy12312 0:8b6686f2d4be 444 default:
soapy12312 0:8b6686f2d4be 445 break;
soapy12312 0:8b6686f2d4be 446 }
soapy12312 0:8b6686f2d4be 447 }
soapy12312 0:8b6686f2d4be 448
soapy12312 0:8b6686f2d4be 449 // Move the ghost up
soapy12312 0:8b6686f2d4be 450 void moveUp() {
soapy12312 0:8b6686f2d4be 451 // If the space in the upward direction is a valid position
soapy12312 0:8b6686f2d4be 452 if (stage.positions[x][y - 1] != 0) {
soapy12312 0:8b6686f2d4be 453 // The ghost is mobile
soapy12312 0:8b6686f2d4be 454 immobile = false;
soapy12312 0:8b6686f2d4be 455 // Erase the ghost from its current position
soapy12312 0:8b6686f2d4be 456 erase(x, y);
soapy12312 0:8b6686f2d4be 457 // Decrement the ghost's y-coordinate
soapy12312 0:8b6686f2d4be 458 y--;
soapy12312 0:8b6686f2d4be 459
soapy12312 0:8b6686f2d4be 460 // If passed over a pac dot
soapy12312 0:8b6686f2d4be 461 if (stage.positions[x][y + 4] == 2) {
soapy12312 0:8b6686f2d4be 462 // Redraw the pac dot
soapy12312 0:8b6686f2d4be 463 uLCD.pixel(x, y + 4, YELLOW);
soapy12312 0:8b6686f2d4be 464 // If passed over a big pac dot
soapy12312 0:8b6686f2d4be 465 } else {
soapy12312 0:8b6686f2d4be 466 // Redraw the big pac dot
soapy12312 0:8b6686f2d4be 467 for (int j = y + 2; j <= y + 5; j++) {
soapy12312 0:8b6686f2d4be 468 if (stage.positions[x][j] == 3) {
soapy12312 0:8b6686f2d4be 469 uLCD.filled_circle(x, j, 1, YELLOW);
soapy12312 0:8b6686f2d4be 470 }
soapy12312 0:8b6686f2d4be 471 }
soapy12312 0:8b6686f2d4be 472 }
soapy12312 0:8b6686f2d4be 473
soapy12312 0:8b6686f2d4be 474 // Draw the ghost in its new position
soapy12312 0:8b6686f2d4be 475 draw(x, y);
soapy12312 0:8b6686f2d4be 476 // If the space in the upward direction is not a valid position
soapy12312 0:8b6686f2d4be 477 } else {
soapy12312 0:8b6686f2d4be 478 // The ghost is immobile
soapy12312 0:8b6686f2d4be 479 immobile = true;
soapy12312 0:8b6686f2d4be 480 wait(0.03);
soapy12312 0:8b6686f2d4be 481 }
soapy12312 0:8b6686f2d4be 482
soapy12312 0:8b6686f2d4be 483 // If Pac-Man's invincibility status changed
soapy12312 0:8b6686f2d4be 484 if (pacman.powerUpChanged == true) {
soapy12312 0:8b6686f2d4be 485 // Change the color of the ghost
soapy12312 0:8b6686f2d4be 486 draw(x, y);
soapy12312 0:8b6686f2d4be 487 // Reset Pac-Man's invincibility status change
soapy12312 0:8b6686f2d4be 488 pacman.powerUpChanged = false;
soapy12312 0:8b6686f2d4be 489 }
soapy12312 0:8b6686f2d4be 490
soapy12312 0:8b6686f2d4be 491 // Set the ghost's next direction
soapy12312 0:8b6686f2d4be 492 switch (nextDirection) {
soapy12312 0:8b6686f2d4be 493 case FACERIGHT:
soapy12312 0:8b6686f2d4be 494 if (stage.positions[x + 1][y] != 0) {
soapy12312 0:8b6686f2d4be 495 direction = nextDirection;
soapy12312 0:8b6686f2d4be 496 }
soapy12312 0:8b6686f2d4be 497
soapy12312 0:8b6686f2d4be 498 break;
soapy12312 0:8b6686f2d4be 499 case FACEDOWN:
soapy12312 0:8b6686f2d4be 500 if (stage.positions[x][y + 1] != 0) {
soapy12312 0:8b6686f2d4be 501 direction = nextDirection;
soapy12312 0:8b6686f2d4be 502 }
soapy12312 0:8b6686f2d4be 503
soapy12312 0:8b6686f2d4be 504 break;
soapy12312 0:8b6686f2d4be 505 case FACELEFT:
soapy12312 0:8b6686f2d4be 506 if (stage.positions[x - 1][y] != 0) {
soapy12312 0:8b6686f2d4be 507 direction = nextDirection;
soapy12312 0:8b6686f2d4be 508 }
soapy12312 0:8b6686f2d4be 509
soapy12312 0:8b6686f2d4be 510 break;
soapy12312 0:8b6686f2d4be 511 default:
soapy12312 0:8b6686f2d4be 512 break;
soapy12312 0:8b6686f2d4be 513 }
soapy12312 0:8b6686f2d4be 514 }
soapy12312 0:8b6686f2d4be 515 };