Hey guys I have an assignment where the goal is to imitate pacman, and I'm having trouble with programming the intersections. The ghosts just glitch at the intersections, and go out of control, rather than running aroud smoothly. My programming knowledge isn't strong as I wasn't able to make it for most classes and got left behind so any help would be greatly appreciated! Here's a copy of my code.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 | import greenfoot.*; // (World, Actor, GreenfootImage, and Greenfoot)import java.util.Random; /** * Ghost Class * * Available functions (see Assignment document for explanations on what each function does): * treeFront, treeAbove, treeBelow, treeToLeft, treeToRight, * getDirection, setDirection, * move, * isScared, * animate, animateDead, animateScared, * getClara, getGhostHealer, * isAboveMe, isBelowMe, isToMyLeft, isToMyRight, * makeClaraDead, * playGhostEatenSound, * isPacmanIntroStillPlaying, * wrapAroundWorld */public class Ghost extends Character{ //Movement of the ghosts public final int UPNUMBER = 0; public final int DOWNNUMBER = 1; public final int RIGHTNUMBER = 2; public final int LEFTNUMBER = 3; // Movement constants public final String UP = "up"; public final String DOWN = "down"; public final String LEFT = "left"; public final String RIGHT = "right"; //Add and initialise Ghost variables here public boolean IntroSongPlayed = false; int imageCounter = 0; /** * Act method, runs on every frame */ public void act() { //Make the Ghost do things here playSoundOnce(); animateGhost(); ghostMovement(); trapped(); wrapAroundWorld(); } //Give the Ghost functions here private void playSoundOnce() { if (!IntroSongPlayed) { playPacmanIntro(); IntroSongPlayed = true; } } private void animateGhost() { if (imageCounter==10) //Every 10 frames, she will animate. { animate(); imageCounter=0; } else imageCounter++; } private void ghostMovement() { Random rnd = new Random(); int randomNumber = rnd.nextInt(4)-1; int direction = Greenfoot.getRandomNumber(4); if (canGhostMove() && corners()) { Greenfoot.getRandomNumber(4); move(1); } if (canGhostMove() && straightLine()) { Greenfoot.getRandomNumber(4); move(1); } if (canGhostMove() && isIntersection()) { Greenfoot.getRandomNumber(4); move(1); } if (canGhostMove() && twoDirections()) { Greenfoot.getRandomNumber(4); move(1); } if (canGhostMove() && threeDirections()) { Greenfoot.getRandomNumber(4); move(1); } if (twoDirections()) { switch (direction) { case UPNUMBER: setDirection(UP); break; case DOWNNUMBER: setDirection(DOWN); break; case RIGHTNUMBER: setDirection(RIGHT); break; case LEFTNUMBER: setDirection(LEFT); break; } } if (threeDirections()) { switch (direction) { case UPNUMBER: setDirection(UP); break; case DOWNNUMBER: setDirection(DOWN); break; case RIGHTNUMBER: setDirection(RIGHT); break; case LEFTNUMBER: setDirection(LEFT); break; } } if (corners()) { switch (direction) { case UPNUMBER: setDirection(UP); break; case DOWNNUMBER: setDirection(DOWN); break; case RIGHTNUMBER: setDirection(RIGHT); break; case LEFTNUMBER: setDirection(LEFT); break; } } if (isIntersection()) { switch (direction) { case UPNUMBER: setDirection(UP); break; case DOWNNUMBER: setDirection(DOWN); break; case RIGHTNUMBER: setDirection(RIGHT); break; case LEFTNUMBER: setDirection(LEFT); break; } } } public void trapped (){ if (treeAbove() && treeToRight() && treeBelow()) { setDirection(LEFT); }} private boolean canGhostMove() { if(!isPacmanIntroStillPlaying() && !treeFront() ) { return true; } return false; } private boolean isIntersection() { if (!treeAbove() && !treeToRight() && !treeBelow() && !treeToLeft()) { return true; } return false; } private void WhenGhostisScared() { if(isScared()) { //move(1); } } private boolean straightLine() { if ((treeAbove() && treeBelow()) || (treeToLeft() && treeToRight())) { return true; } return false; } private boolean threeDirections() { if (!treeAbove() && !treeBelow() && !treeToLeft() || (!treeAbove() && !treeBelow() && !treeToRight() || (!treeAbove() && !treeToRight() && !treeToLeft() || !treeBelow() && !treeToRight() && !treeToLeft()))) { return true; } return false; } private boolean corners() { if (treeAbove() && treeToLeft() || (treeToLeft() && treeBelow() || (treeBelow() && treeToRight() || (treeToRight() && !treeAbove())))) { return true; } return false; } private boolean twoDirections() { if (!treeToLeft() && !treeToRight() && treeFront() || !treeAbove() && !treeBelow() && treeFront()) { return true; } return false; } } |
