diff --git a/pacman/.gitignore b/pacman/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..f35f60a357424aa265b3a6c1933c26af537c57ad
--- /dev/null
+++ b/pacman/.gitignore
@@ -0,0 +1,62 @@
+# Mac file finder metadata
+.DS_Store
+# Windows file metadata
+._*
+# Thumbnail image caches
+Thumbs.db
+ethumbs.db
+# MS Office temporary file
+~*
+# Emacs backup file
+*~
+
+# Common
+[Bb]in/
+[Bb]uild/
+[Oo]bj/
+[Oo]ut/
+[Tt]mp/
+[Xx]86/
+[Ii][Aa]32/
+[Xx]64/
+[Xx]86_64/
+[Xx]86-64/
+[Aa]rm
+[Aa]32
+[Tt]32
+[Aa]64
+*.tmp
+*.bak
+*.bk
+*.swp
+
+# Java files
+*.class
+javadoc/
+
+# Maven
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+
+# JetBrains (IntelliJ IDEA, PyCharm, etc) files
+.idea/
+cmake-build-*/
+*.iml
+*.iws
+*.ipr
+
+# Eclipse files
+.settings/
+.project
+.classpath
+.buildpath
+.loadpath
+.factorypath
+local.properties
diff --git a/pacman/LICENSE b/pacman/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..94a9ed024d3859793618152ea559a168bbcbb5e2
--- /dev/null
+++ b/pacman/LICENSE
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
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+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
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+ TERMS AND CONDITIONS
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+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/pacman/README.md b/pacman/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..cc1b05fa0ee99bc3f62fdcf6476a7085028b4ef9
--- /dev/null
+++ b/pacman/README.md
@@ -0,0 +1,5 @@
+This code is a modification of ["Intelligent Java Pacman"](https://sourceforge.net/projects/javaipacman/) by
+[Junyang Gu](https://sourceforge.net/u/mikejyg/profile/).
+
+"Intelligent Java Pacman" is free software released under the GNU General Public
+License version 3.0 (GPLv3); see LICENSE for details.
diff --git a/pacman/documentation/ghost-specification.txt b/pacman/documentation/ghost-specification.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5443911dc9bbb7f566f311b6322ca6b560004e67
--- /dev/null
+++ b/pacman/documentation/ghost-specification.txt
@@ -0,0 +1,47 @@
+Maze Layout
+===========
+
+The maze's X coordinates go from 0 (left) to 20 (right).
+
+The maze's Y coordinates go from 0 (top) to 15 (bottom).
+
+The maze has no dead ends.
+
+Ghost Behavior (as implemented in the turn method of edu.unl.cse.soft160.pacman.Ghost)
+======================================================================================
+
+A ghost may never go into a wall.
+
+A ghost may never reverse direction; it can only go straight, turn left, or turn right.
+
+If a ghost is:
+ in the center box ("caged") and
+ able to move in the same direction as the player,
+it should:
+ move in the same direction as the player.
+
+If a ghost is:
+ in the center box ("caged") and
+ not able to move in the same direction as the player,
+it should:
+ move in the first available direction from the list [north, east, west, south].
+
+If a ghost is:
+ outside the center box and inedible ("hunting"),
+it should:
+ choose the highest rated legal move, where the rating of a move is the sum of:
+ the number of squares from the ghost to the player in that direction and
+ a ten-point bonus if the player is moving in the same direction.
+
+If a ghost is:
+ outside the center box and edible ("edible"),
+it should:
+ choose the highest rated legal move, where the rating of a move is:
+ the number of squares from the ghost to the player in the opposite direction.
+
+If a ghost is:
+ outside the center box and recovering from being eaten ("eaten"),
+it should:
+ choose the highest rated legal move, where the rating of a move is the sum of:
+ the number of squares from the ghost to the player in the opposite direction and
+ a ten-point bonus if the player is moving in the same direction.
diff --git a/pacman/pom.xml b/pacman/pom.xml
new file mode 100644
index 0000000000000000000000000000000000000000..a743a77164da681927b0ce3e7ee7e73e4b1cff34
--- /dev/null
+++ b/pacman/pom.xml
@@ -0,0 +1,36 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+ <groupId>edu.unl.cse.soft160.pacman</groupId>
+ <artifactId>pacman</artifactId>
+ <packaging>jar</packaging>
+ <version>1.0-SNAPSHOT</version>
+ <name>pacman</name>
+ <url>http://maven.apache.org</url>
+
+ <properties>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ </properties>
+
+ <build>
+ <plugins>
+ <plugin>
+ <artifactId>maven-compiler-plugin</artifactId>
+ <version>3.8.1</version>
+ <configuration>
+ <source>8</source>
+ <target>8</target>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+
+ <dependencies>
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <version>4.13</version>
+ <scope>test</scope>
+ </dependency>
+ </dependencies>
+</project>
diff --git a/pacman/src/main/java/edu/unl/cse/soft160/pacman/Constants.java b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Constants.java
new file mode 100644
index 0000000000000000000000000000000000000000..cd08ed8755b3d678cba9aff49fcd1f2c42f96c6c
--- /dev/null
+++ b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Constants.java
@@ -0,0 +1,72 @@
+/**
+ * Copyright (C) 1997-2010 Junyang Gu <mikejyg@gmail.com>
+ *
+ * This file is part of javaiPacman.
+ *
+ * javaiPacman is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * javaiPacman is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with javaiPacman. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package edu.unl.cse.soft160.pacman;
+
+/**
+ * the tables are used to speed up computation
+ */
+public class Constants {
+ // for direction computation
+ public static final int[] DIRECTION_X_COMPONENTS = {1, 0, -1, 0};
+ public static final int[] DIRECTION_Y_COMPONENTS = {0, -1, 0, 1};
+ public static final int[] iDirection = {-1, // 0:
+ 1, // 1: x=0, y=-1
+ -1, // 2:
+ -1, // 3:
+ 2, // 4: x=-1, y=0
+ -1, // 5:
+ 0, // 6: x=1, y=0
+ -1, // 7
+ -1, // 8
+ 3 // 9: x=0, y=1
+ };
+
+ // backward direction
+ public static final int[] iBack = {2, 3, 0, 1};
+
+ // direction code
+ public enum Direction {
+ EAST,
+ NORTH,
+ WEST,
+ SOUTH,
+ }
+
+ // the maze definition string
+ public static final String[] MazeDefine = {
+ "XXXXXXXXXXXXXXXXXXXXX", // 1
+ "X.........X.........X", // 2
+ "XOXXX.XXX.X.XXX.XXXOX", // 3
+ "X......X..X.........X", // 4
+ "XXX.XX.X.XXX.XX.X.X.X", // 5
+ "X....X..........X.X.X", // 6
+ "X.XX.X.XXXXX-X.XX.X.X", // 7
+ "X.XX.X.X X......X", // 8
+ "X.XX...X X.XXXX.X", // 9
+ "X.XX.X.XXXXXXX.XXXX.X", // 10
+ "X....X.... .........X", // 11
+ "XXX.XX.XXXXXXX.X.X.XX", // 12
+ "X.........X....X....X", // 13
+ "XOXXXXXXX.X.XXXXXXXOX", // 14
+ "X...................X", // 15
+ "XXXXXXXXXXXXXXXXXXXXX", // 16
+ };
+
+}
diff --git a/pacman/src/main/java/edu/unl/cse/soft160/pacman/Ghost.java b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Ghost.java
new file mode 100644
index 0000000000000000000000000000000000000000..f93a03fdb8194f276ca76de43b07f084024f5bc2
--- /dev/null
+++ b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Ghost.java
@@ -0,0 +1,284 @@
+/**
+ * Copyright (C) 1997-2010 Junyang Gu <mikejyg@gmail.com>
+ *
+ * This file is part of javaiPacman.
+ *
+ * javaiPacman is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * javaiPacman is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with javaiPacman. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package edu.unl.cse.soft160.pacman;
+
+import static edu.unl.cse.soft160.pacman.Constants.Direction;
+import java.awt.*;
+
+public class Ghost {
+ public enum Status {
+ CAGED, HUNTING, EDIBLE, EATEN,
+ };
+
+ private final int[] STEPS = { 7, 7, 1, 1 }; // indexed by status
+ private final int[] FRAMES = { 8, 8, 2, 1 }; // indexed by status
+
+ private final int MAXIMUM_EDIBILITY_DURATION = 600; // frames
+ private int edibilityDuration; // frames
+
+ private Speed speed = new Speed();
+
+ private Status status;
+ private int edibilityRemaining;
+ private boolean blinking;
+ private Direction direction;
+ private int x, y;
+
+ // the applet this object is associated to
+ private Window applet;
+ private Graphics graphics;
+
+ // the maze the ghosts knows
+ private Maze maze;
+
+ // the ghost images
+ java.awt.Image imageGhost;
+ java.awt.Image imageEdible;
+ java.awt.Image imageEye;
+
+ Ghost(Window applet, Graphics graphics, Maze maze, Color color) {
+ this.applet = applet;
+ this.graphics = graphics;
+ this.maze = maze;
+
+ imageGhost = applet.createImage(18, 18);
+ Image.drawGhost(imageGhost, 0, color);
+ imageEdible = applet.createImage(18, 18);
+ Image.drawGhost(imageEdible, 1, Color.white);
+ imageEye = applet.createImage(18, 18);
+ Image.drawGhost(imageEye, 2, Color.lightGray);
+ }
+
+ public void start(int initialPosition, int round) {
+ x = (8 + initialPosition + (initialPosition >= 2 ? 1 : 0)) * 16;
+ y = 8 * 16;
+ direction = Direction.NORTH;
+ status = Status.CAGED;
+ edibilityDuration = MAXIMUM_EDIBILITY_DURATION / ((round + 1) / 2);
+ speed.start(STEPS[status.ordinal()], FRAMES[status.ordinal()]);
+ }
+
+ public void draw() {
+ maze.DrawDot(x / 16, y / 16);
+ maze.DrawDot(x / 16 + (x % 16 > 0 ? 1 : 0), y / 16 + (y % 16 > 0 ? 1 : 0));
+ if (status == Status.EDIBLE && blinking && edibilityRemaining % 32 < 16) {
+ graphics.drawImage(imageGhost, x - 1, y - 1, applet);
+ } else if (status == Status.HUNTING || status == Status.CAGED) {
+ graphics.drawImage(imageGhost, x - 1, y - 1, applet);
+ } else if (status == Status.EDIBLE) {
+ graphics.drawImage(imageEdible, x - 1, y - 1, applet);
+ } else {
+ graphics.drawImage(imageEye, x - 1, y - 1, applet);
+ }
+ }
+
+ public static Direction turn(Status status, int gridX, int gridY, Direction direction, int playerGridX, int playerGridY,
+ Direction playerDirection, boolean eastBlocked, boolean northBlocked, boolean westBlocked, boolean southBlocked) {
+ int reverse = (direction.ordinal() + 2) % 4;
+ int dx = playerGridX - gridX;
+ int dy = playerGridY - gridY;
+ boolean[] blocked = { eastBlocked, northBlocked, westBlocked, southBlocked };
+ Direction candidate;
+ candidate = Direction.EAST;
+ int eastScore = 0;
+ if (status == Status.CAGED && candidate == playerDirection) {
+ eastScore = 1;
+ } else {
+ int towardsPlayer = Math.max(
+ dx * Constants.DIRECTION_X_COMPONENTS[candidate.ordinal()] + dy * Constants.DIRECTION_Y_COMPONENTS[candidate.ordinal()],
+ 0);
+ if (status == Status.HUNTING) {
+ eastScore += towardsPlayer;
+ } else {
+ eastScore -= towardsPlayer;
+ }
+ }
+ if (status != Status.EDIBLE && candidate == playerDirection) {
+ eastScore += 10;
+ }
+ if (candidate.ordinal() == reverse || blocked[candidate.ordinal()]) {
+ eastScore = Integer.MIN_VALUE;
+ }
+ candidate = Direction.NORTH;
+ int northScore = 0;
+ if (status == Status.CAGED && candidate == playerDirection) {
+ northScore = 1;
+ } else {
+ int towardsPlayer = Math.max(
+ dx * Constants.DIRECTION_X_COMPONENTS[candidate.ordinal()] + dy * Constants.DIRECTION_Y_COMPONENTS[candidate.ordinal()],
+ 0);
+ if (status == Status.HUNTING) {
+ northScore += towardsPlayer;
+ } else {
+ northScore -= towardsPlayer;
+ }
+ }
+ if (status != Status.EDIBLE && candidate == playerDirection) {
+ northScore += 10;
+ }
+ if (candidate.ordinal() == reverse || blocked[candidate.ordinal()]) {
+ northScore = Integer.MIN_VALUE;
+ }
+ candidate = Direction.WEST;
+ int westScore = 0;
+ if (status == Status.CAGED && candidate == playerDirection) {
+ westScore = 1;
+ } else {
+ int towardsPlayer = Math.max(
+ dx * Constants.DIRECTION_X_COMPONENTS[candidate.ordinal()] + dy * Constants.DIRECTION_Y_COMPONENTS[candidate.ordinal()],
+ 0);
+ if (status == Status.HUNTING) {
+ westScore += towardsPlayer;
+ } else {
+ westScore -= towardsPlayer;
+ }
+ }
+ if (status != Status.EDIBLE && candidate == playerDirection) {
+ westScore += 10;
+ }
+ if (candidate.ordinal() == reverse || blocked[candidate.ordinal()]) {
+ westScore = Integer.MIN_VALUE;
+ }
+ candidate = Direction.SOUTH;
+ int southScore = 0;
+ if (status == Status.CAGED && candidate == playerDirection) {
+ southScore = 1;
+ } else {
+ int towardsPlayer = Math.max(
+ dx * Constants.DIRECTION_X_COMPONENTS[candidate.ordinal()] + dy * Constants.DIRECTION_Y_COMPONENTS[candidate.ordinal()],
+ 0);
+ if (status == Status.HUNTING) {
+ southScore += towardsPlayer;
+ } else {
+ southScore -= towardsPlayer;
+ }
+ }
+ if (status != Status.EDIBLE && candidate == playerDirection) {
+ southScore += 10;
+ }
+ if (candidate.ordinal() == reverse || blocked[candidate.ordinal()]) {
+ southScore = Integer.MIN_VALUE;
+ }
+ if (status == Status.CAGED) {
+ ++northScore;
+ }
+ Direction result = direction;
+ int score = Integer.MIN_VALUE;
+ if (eastScore > score) {
+ result = Direction.EAST;
+ score = eastScore;
+ }
+ if (northScore > score) {
+ result = Direction.NORTH;
+ score = northScore;
+ }
+ if (westScore > score) {
+ result = Direction.WEST;
+ score = westScore;
+ }
+ if (southScore > score) {
+ result = Direction.SOUTH;
+ score = southScore;
+ }
+ return result;
+ }
+
+ private boolean isDoor(int gridX, int gridY) {
+ int square = maze.grid[gridY][gridX];
+ return square == Maze.DOOR;
+ }
+
+ private boolean isBlocked(int gridX, int gridY) {
+ int square = maze.grid[gridY][gridX];
+ return square == Maze.WALL || square == Maze.DOOR && status != Status.CAGED;
+ }
+
+ private void move(int playerX, int playerY, Direction playerDirection) {
+ if (x % 16 == 0 && y % 16 == 0) {
+ int gridX = x / 16;
+ int gridY = y / 16;
+ if (status == Status.CAGED && isDoor(gridX, gridY)) {
+ status = Status.HUNTING;
+ }
+ direction = turn(status, gridX, gridY, direction, playerX / 16, playerY / 16, playerDirection,
+ isBlocked(gridX + 1, gridY), isBlocked(gridX, gridY - 1), isBlocked(gridX - 1, gridY),
+ isBlocked(gridX, gridY + 1));
+ }
+ int travelRate = (status == Status.EATEN) ? 2 : 1;
+ x += travelRate * Constants.DIRECTION_X_COMPONENTS[direction.ordinal()];
+ y += travelRate * Constants.DIRECTION_Y_COMPONENTS[direction.ordinal()];
+
+ }
+
+ public void tick(int playerX, int playerY, int playerDirection) {
+ if (status == Status.EDIBLE || status == Status.EATEN) {
+ --edibilityRemaining;
+ if (edibilityRemaining == 0) {
+ status = Status.HUNTING;
+ }
+ }
+ if (status == Status.EDIBLE) {
+ blinking = edibilityRemaining < edibilityDuration / 3;
+ }
+ if (speed.isMove() && (status != Status.EDIBLE || edibilityRemaining % 2 == 0)) {
+ move(playerX, playerY, Direction.values()[playerDirection]);
+ }
+ }
+
+ public void makeEdible() {
+ if (status == Status.EDIBLE || status == Status.HUNTING) {
+ status = Status.EDIBLE;
+ edibilityRemaining = edibilityDuration;
+ blinking = false;
+ // reverse
+ if (x % 16 != 0 || y % 16 != 0) {
+ direction = Direction.values()[Constants.iBack[direction.ordinal()]];
+ // a special condition:
+ // when ghost is leaving home, it can not go back
+ // while becoming edible
+ int square;
+ square = maze.grid[y / 16 + Constants.DIRECTION_Y_COMPONENTS[direction.ordinal()]][x / 16
+ + Constants.DIRECTION_X_COMPONENTS[direction.ordinal()]];
+ if (square == Maze.DOOR)
+ direction = Direction.values()[Constants.iBack[direction.ordinal()]];
+ }
+ }
+ }
+
+ // return 1 if caught the pac!
+ // return 2 if being caught by pac
+ public int testCollision(int playerX, int playerY) {
+ if (x <= playerX + 2 && x >= playerX - 2 && y <= playerY + 2 && y >= playerY - 2) {
+ switch (status) {
+ case HUNTING:
+ return 1;
+ case EDIBLE:
+ status = Status.EATEN;
+ x = x / 4 * 4;
+ y = y / 4 * 4;
+ return 2;
+ default:
+ break;
+ }
+ }
+ // nothing
+ return 0;
+ }
+}
diff --git a/pacman/src/main/java/edu/unl/cse/soft160/pacman/Image.java b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Image.java
new file mode 100644
index 0000000000000000000000000000000000000000..37dca017b4f1db3dc0b31d5af6cc976d19c5e6ff
--- /dev/null
+++ b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Image.java
@@ -0,0 +1,192 @@
+/**
+ * Copyright (C) 1997-2010 Junyang Gu <mikejyg@gmail.com>
+ *
+ * This file is part of javaiPacman.
+ *
+ * javaiPacman is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * javaiPacman is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with javaiPacman. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package edu.unl.cse.soft160.pacman;
+
+import java.awt.*;
+
+public class Image {
+ public static void drawDot(java.awt.Image img) {
+ Graphics g = img.getGraphics();
+ g.setColor(Color.yellow);
+ g.drawRect(0, 0, 2, 2);
+ g.dispose();
+ }
+
+ public static void drawPowerDot(java.awt.Image img) {
+ Graphics g = img.getGraphics();
+ g.setColor(Color.black);
+ g.fillRect(0, 0, 16, 16);
+ g.setColor(Color.yellow);
+ int iCounter = 0;
+ short mask = 0x01;
+ for (int i = 0; i < 16; i++)
+ for (int j = 0; j < 16; j++) {
+ if ((power_bits[iCounter] & mask) != 0)
+ g.fillRect(j, i, 1, 1);
+ mask <<= 1;
+ if ((mask & 0xff) == 0) {
+ mask = 0x01;
+ iCounter++;
+ }
+ }
+ g.dispose();
+ }
+
+ public static void drawPac(java.awt.Image img, int dir, int step) {
+ Graphics g = img.getGraphics();
+ g.setColor(Color.black);
+ g.fillRect(0, 0, 18, 18);
+ g.setColor(Color.yellow);
+ int iCounter = 0;
+ short mask = 0x01;
+ for (int i = 0; i < 16; i++)
+ for (int j = 0; j < 16; j++) {
+ if ((pac_bits[dir][step][iCounter] & mask) != 0)
+ g.fillRect(j + 1, i + 1, 1, 1);
+ mask <<= 1;
+ if ((mask & 0xff) == 0) {
+ mask = 0x01;
+ iCounter++;
+ }
+ }
+ g.dispose();
+ }
+
+ public static void drawGhost(java.awt.Image img, int number, Color color) {
+ Graphics g = img.getGraphics();
+ g.setColor(Color.black);
+ g.fillRect(0, 0, 18, 18);
+ g.setColor(color);
+ int iCounter = 0;
+ short mask = 0x01;
+ for (int i = 0; i < 16; i++)
+ for (int j = 0; j < 16; j++) {
+ if ((ghost_bits[number][iCounter] & mask) != 0)
+ g.fillRect(j + 1, i + 1, 1, 1);
+ mask <<= 1;
+ if ((mask & 0xff) == 0) {
+ mask = 0x01;
+ iCounter++;
+ }
+ }
+ g.dispose();
+ }
+
+ // //////////////////////////////////////////////////////////////////////////////
+ // image arrays
+ // //////////////////////////////////////////////////////////////////////////////
+
+ static final short[][][] pac_bits = { // [4][4][32]
+ // right
+ {
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x0f, 0xfe, 0x07, 0xfe,
+ 0x03, 0xff, 0x01, 0xff, 0x00, 0x7f, 0x00, 0x7f,
+ 0x00, 0xff, 0x00, 0xff, 0x01, 0xfe, 0x03, 0xfe,
+ 0x07, 0xfc, 0x0f, 0xf8, 0x1f, 0xe0, 0x07},
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x3f, 0xfe, 0x7f, 0xfe,
+ 0x3f, 0xff, 0x0f, 0xff, 0x03, 0xff, 0x00, 0xff,
+ 0x00, 0xff, 0x03, 0xff, 0x0f, 0xfe, 0x3f, 0xfe,
+ 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xe0, 0x07},
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x3f, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xff, 0xff, 0xff, 0x1f, 0xff, 0x01, 0xff,
+ 0x01, 0xff, 0x1f, 0xff, 0xff, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xe0, 0x07},
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x3f, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xe0, 0x07},},
+ // up
+ {
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x40, 0x06,
+ 0x60, 0x0f, 0xf0, 0x1f, 0xf8, 0x3f, 0xfc, 0x7f,
+ 0xfe, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xe0, 0x07},
+ {0x00, 0x00, 0x08, 0x10, 0x1c, 0x38, 0x1e, 0x78, 0x3e,
+ 0x7c, 0x3f, 0xfc, 0x7f, 0xfe, 0x7f, 0xfe, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xe0, 0x07},
+ {0x20, 0x04, 0x38, 0x1c, 0x3c, 0x3c, 0x7e, 0x7e, 0x7e,
+ 0x7e, 0x7f, 0xfe, 0x7f, 0xfe, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xe0, 0x07},
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x3f, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xe0, 0x07}},
+ // left
+ {
+ {0xe0, 0x07, 0xf8, 0x1f, 0xf0, 0x3f, 0xe0, 0x7f, 0xc0,
+ 0x7f, 0x80, 0xff, 0x00, 0xff, 0x00, 0xfe, 0x00,
+ 0xfe, 0x00, 0xff, 0x80, 0xff, 0xc0, 0x7f, 0xe0,
+ 0x7f, 0xf0, 0x3f, 0xf8, 0x1f, 0xe0, 0x07},
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x3f, 0xfe, 0x7f, 0xfc,
+ 0x7f, 0xf0, 0xff, 0xc0, 0xff, 0x00, 0xff, 0x00,
+ 0xff, 0xc0, 0xff, 0xf0, 0xff, 0xfc, 0x7f, 0xfe,
+ 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xe0, 0x07},
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x3f, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xff, 0xff, 0xf8, 0xff, 0x80, 0xff, 0x80,
+ 0xff, 0xf8, 0xff, 0xff, 0xff, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xe0, 0x07},
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x3f, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xe0, 0x07}},
+ // down
+ {
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x3f, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xff, 0xff, 0xff, 0xff, 0x7f, 0xfe, 0x3f,
+ 0xfc, 0x1f, 0xf8, 0x0f, 0xf0, 0x06, 0x60, 0x02,
+ 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x3f, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f,
+ 0xfe, 0x7f, 0xfe, 0x3f, 0xfc, 0x3e, 0x7c, 0x1e,
+ 0x78, 0x1c, 0x38, 0x08, 0x10, 0x00, 0x00},
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x3f, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0x7f, 0xfe, 0x7f, 0xfe, 0x7e, 0x7e, 0x7e,
+ 0x7e, 0x3c, 0x3c, 0x38, 0x1c, 0x20, 0x04},
+ {0xe0, 0x07, 0xf8, 0x1f, 0xfc, 0x3f, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xe0, 0x07}}};
+
+ static final short[][] ghost_bits = { // [3][32]
+ {0xe0, 0x07, 0xf8, 0x1f, 0xcc, 0x33, 0xbc, 0x3d, 0xfe, 0x7f, 0xde,
+ 0x7b, 0x8e, 0x71, 0x9e, 0x79, 0xfe, 0x7f, 0xfe, 0x7f, 0xfe,
+ 0x7f, 0xfe, 0x7f, 0xfe, 0x7f, 0x76, 0x6e, 0x76, 0x6e, 0x24,
+ 0x24},
+ {0xe0, 0x07, 0x18, 0x18, 0x04, 0x20, 0x04, 0x20, 0x32, 0x4c, 0x4a,
+ 0x52, 0x8a, 0x51, 0x8a, 0x51, 0x72, 0x4e, 0x02, 0x40, 0x02,
+ 0x40, 0x02, 0x40, 0x8a, 0x51, 0x56, 0x6a, 0x52, 0x4a, 0x24,
+ 0x24},
+ // blind
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0c, 0x48,
+ 0x12, 0x88, 0x11, 0x88, 0x11, 0x70, 0x0e, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00}};
+
+ static final short[] power_bits =
+ // [32]
+ // show
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x03, 0xe0, 0x07, 0xf0, 0x0f,
+ 0xf8, 0x1f, 0xf8, 0x1f, 0xf8, 0x1f, 0xf8, 0x1f, 0xf0, 0x0f, 0xe0,
+ 0x07, 0xc0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+}
diff --git a/pacman/src/main/java/edu/unl/cse/soft160/pacman/Interface.java b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Interface.java
new file mode 100644
index 0000000000000000000000000000000000000000..937331f9b8b6f59bbb5de51654954732c4717456
--- /dev/null
+++ b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Interface.java
@@ -0,0 +1,142 @@
+/**
+ * Copyright (C) 1997-2010 Junyang Gu <mikejyg@gmail.com>
+ *
+ * This file is part of javaiPacman.
+ *
+ * javaiPacman is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * javaiPacman is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with javaiPacman. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package edu.unl.cse.soft160.pacman;
+
+import java.awt.*;
+
+public class Interface {
+ // frames to wait after eaten a dot
+ final int DOT_WAIT = 4;
+
+ int iDotWait;
+
+ // current position
+ int iX, iY;
+ // current direction
+ int iDir;
+
+ // the applet this object is associated to
+ Window applet;
+ Graphics graphics;
+
+ // the pac image
+ java.awt.Image[][] imagePac;
+
+ // the knowledge of the maze
+ Maze maze;
+
+ // the knowledge of the power dots
+ PowerDot powerDot;
+
+ Interface(Window a, Graphics g, Maze m, PowerDot p) {
+ applet = a;
+ graphics = g;
+ maze = m;
+ powerDot = p;
+
+ // initialize pac and pac image
+ imagePac = new java.awt.Image[4][4];
+ for (int i = 0; i < 4; i++)
+ for (int j = 0; j < 4; j++) {
+ imagePac[i][j] = applet.createImage(18, 18);
+ Image.drawPac(imagePac[i][j], i, j);
+ }
+ }
+
+ public void start() {
+ iX = 10 * 16;
+ iY = 10 * 16;
+ iDir = 1; // downward, illegal and won't move
+ iDotWait = 0;
+ }
+
+ public void draw() {
+ maze.DrawDot(iX / 16, iY / 16);
+ maze.DrawDot(iX / 16 + (iX % 16 > 0 ? 1 : 0), iY / 16
+ + (iY % 16 > 0 ? 1 : 0));
+
+ int iImageStep = (iX % 16 + iY % 16) / 2; // determine shape of PAc
+ if (iImageStep < 4)
+ iImageStep = 3 - iImageStep;
+ else
+ iImageStep -= 4;
+ graphics.drawImage(imagePac[iDir][iImageStep], iX - 1, iY - 1, applet);
+ }
+
+ // return 1 if eat a dot
+ // return 2 if eat power dot
+ public int move(int iNextDir) {
+ int eaten = 0;
+
+ // iNextDir=cAuto.GetNextDir();
+
+ if (iNextDir != -1 && iNextDir != iDir) // not set or same
+ // change direction
+ {
+ if (iX % 16 != 0 || iY % 16 != 0) {
+ // only check go back
+ if (iNextDir % 2 == iDir % 2)
+ iDir = iNextDir;
+ } else // need to see whether ahead block is OK
+ {
+ if (mazeOK(
+ iX / 16 + Constants.DIRECTION_X_COMPONENTS[iNextDir],
+ iY / 16 + Constants.DIRECTION_Y_COMPONENTS[iNextDir])) {
+ iDir = iNextDir;
+ iNextDir = -1;
+ }
+ }
+ }
+ if (iX % 16 == 0 && iY % 16 == 0) {
+
+ // see whether has eaten something
+ switch (maze.grid[iY / 16][iX / 16]) {
+ case Maze.DOT :
+ eaten = 1;
+ maze.grid[iY / 16][iX / 16] = Maze.BLANK; // eat dot
+ maze.iTotalDotcount--;
+ iDotWait = DOT_WAIT;
+ break;
+ case Maze.POWER_DOT :
+ eaten = 2;
+ powerDot.eat(iX / 16, iY / 16);
+ maze.grid[iY / 16][iX / 16] = Maze.BLANK;
+ break;
+ }
+
+ if (maze.grid[iY / 16 + Constants.DIRECTION_Y_COMPONENTS[iDir]][iX
+ / 16 + Constants.DIRECTION_X_COMPONENTS[iDir]] == 1) {
+ return (eaten); // not valid move
+ }
+ }
+ if (iDotWait == 0) {
+ iX += Constants.DIRECTION_X_COMPONENTS[iDir];
+ iY += Constants.DIRECTION_Y_COMPONENTS[iDir];
+ } else
+ iDotWait--;
+ return (eaten);
+ }
+
+ boolean mazeOK(int iRow, int icol) {
+ if ((maze.grid[icol][iRow] & (Maze.WALL | Maze.DOOR)) == 0)
+ return (true);
+ return (false);
+ }
+}
diff --git a/pacman/src/main/java/edu/unl/cse/soft160/pacman/Maze.java b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Maze.java
new file mode 100644
index 0000000000000000000000000000000000000000..09d1dcfda0c906d603053339fa959d4fd83f822d
--- /dev/null
+++ b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Maze.java
@@ -0,0 +1,309 @@
+/**
+ * Copyright (C) 1997-2010 Junyang Gu <mikejyg@gmail.com>
+ *
+ * This file is part of javaiPacman.
+ *
+ * javaiPacman is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * javaiPacman is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with javaiPacman. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package edu.unl.cse.soft160.pacman;
+
+import static edu.unl.cse.soft160.pacman.Constants.Direction;
+import java.awt.*;
+
+/* define the maze */
+public class Maze {
+ // constant definitions
+ static final int BLANK = 0;
+ static final int WALL = 1;
+ static final int DOOR = 2;
+ static final int DOT = 4;
+ static final int POWER_DOT = 8;
+
+ static final int HEIGHT = 16;
+ static final int WIDTH = 21;
+
+ static final int height = HEIGHT * 16;
+ static final int width = WIDTH * 16;
+
+ // the applet the object associate with
+ Window applet;
+ // the graphics it will be using
+ Graphics graphics;
+
+ // the maze image
+ java.awt.Image imageMaze;
+
+ // the dot image
+ java.awt.Image imageDot;
+
+ // total dots left
+ int iTotalDotcount;
+
+ // the status of maze
+ int[][] grid;
+
+ // initialize the maze
+ Maze(Window a, Graphics g) {
+ // setup associations
+ applet = a;
+ graphics = g;
+
+ imageMaze = applet.createImage(width, height);
+ imageDot = applet.createImage(2, 2);
+
+ // create data
+ grid = new int[HEIGHT][WIDTH];
+ }
+
+ public void start() {
+ int i, j, k;
+ iTotalDotcount = 0;
+ for (i = 0; i < HEIGHT; i++)
+ for (j = 0; j < WIDTH; j++) {
+ switch (Constants.MazeDefine[i].charAt(j)) {
+ case ' ' :
+ k = BLANK;
+ break;
+ case 'X' :
+ k = WALL;
+ break;
+ case '.' :
+ k = DOT;
+ iTotalDotcount++;
+ break;
+ case 'O' :
+ k = POWER_DOT;
+ break;
+ case '-' :
+ k = DOOR;
+ break;
+ default :
+ k = DOT;
+ iTotalDotcount++;
+ break;
+ }
+ grid[i][j] = k;
+ }
+ // create initial maze image
+ createImage();
+ }
+
+ public void draw() {
+ graphics.drawImage(imageMaze, 0, 0, applet);
+ drawDots();
+ }
+
+ void drawDots() // on the offscreen
+ {
+ int i, j;
+
+ for (i = 0; i < HEIGHT; i++)
+ for (j = 0; j < WIDTH; j++) {
+ if (grid[i][j] == DOT)
+ graphics.drawImage(imageDot, j * 16 + 7, i * 16 + 7, applet);
+ }
+ }
+
+ void createImage() {
+ // create the image of a dot
+ Image.drawDot(imageDot);
+
+ // create the image of the maze
+ Graphics gmaze = imageMaze.getGraphics();
+
+ // background
+ gmaze.setColor(Color.black);
+ gmaze.fillRect(0, 0, width, height);
+
+ DrawWall(gmaze);
+ }
+
+ public void DrawDot(int icol, int iRow) {
+ if (grid[iRow][icol] == DOT)
+ graphics.drawImage(imageDot, icol * 16 + 7, iRow * 16 + 7, applet);
+ }
+
+ void DrawWall(Graphics g) {
+ int i, j;
+ int iDir;
+
+ g.setColor(Color.green);
+
+ for (i = 0; i < HEIGHT; i++) {
+ for (j = 0; j < WIDTH; j++) {
+ for (iDir = Direction.EAST.ordinal(); iDir <= Direction.SOUTH.ordinal(); iDir++) {
+ if (grid[i][j] == DOOR) {
+ g.drawLine(j * 16, i * 16 + 8, j * 16 + 16, i * 16 + 8);
+ continue;
+ }
+ if (grid[i][j] != WALL)
+ continue;
+ switch (Direction.values()[iDir]) {
+ case NORTH :
+ if (i == 0)
+ break;
+ if (grid[i - 1][j] == WALL)
+ break;
+ DrawBoundary(g, j, i - 1, Direction.SOUTH.ordinal());
+ break;
+ case EAST :
+ if (j == WIDTH - 1)
+ break;
+ if (grid[i][j + 1] == WALL)
+ break;
+ DrawBoundary(g, j + 1, i, Direction.WEST.ordinal());
+ break;
+ case SOUTH :
+ if (i == HEIGHT - 1)
+ break;
+ if (grid[i + 1][j] == WALL)
+ break;
+ DrawBoundary(g, j, i + 1, Direction.NORTH.ordinal());
+ break;
+ case WEST :
+ if (j == 0)
+ break;
+ if (grid[i][j - 1] == WALL)
+ break;
+ DrawBoundary(g, j - 1, i, Direction.EAST.ordinal());
+ break;
+ default :
+ }
+ }
+ }
+ }
+ }
+
+ void DrawBoundary(Graphics g, int col, int row, int iDir) {
+ int x, y;
+
+ x = col * 16;
+ y = row * 16;
+
+ switch (Direction.values()[iDir]) {
+ case WEST :
+ // draw lower half segment
+ if (grid[row + 1][col] != WALL)
+ // down empty
+ if (grid[row + 1][col - 1] != WALL)
+ // left-down empty
+ {
+ g.drawArc(x - 8 - 6, y + 8 - 6, 12, 12, 270, 100);
+ } else {
+ g.drawLine(x - 2, y + 8, x - 2, y + 16);
+ }
+ else {
+ g.drawLine(x - 2, y + 8, x - 2, y + 17);
+ g.drawLine(x - 2, y + 17, x + 7, y + 17);
+ }
+
+ // Draw upper half segment
+ if (grid[row - 1][col] != WALL)
+ // upper empty
+ if (grid[row - 1][col - 1] != WALL)
+ // upper-left empty
+ {
+ g.drawArc(x - 8 - 6, y + 7 - 6, 12, 12, 0, 100);
+ } else {
+ g.drawLine(x - 2, y, x - 2, y + 7);
+ }
+ else {
+ g.drawLine(x - 2, y - 2, x - 2, y + 7);
+ g.drawLine(x - 2, y - 2, x + 7, y - 2);
+ }
+ break;
+
+ case EAST :
+ // draw lower half segment
+ if (grid[row + 1][col] != WALL)
+ // down empty
+ if (grid[row + 1][col + 1] != WALL)
+ // down-right empty
+ {
+ g.drawArc(x + 16 + 7 - 6, y + 8 - 6, 12, 12, 180, 100);
+ } else {
+ g.drawLine(x + 17, y + 8, x + 17, y + 15);
+ }
+ else {
+ g.drawLine(x + 8, y + 17, x + 17, y + 17);
+ g.drawLine(x + 17, y + 8, x + 17, y + 17);
+ }
+ // Draw upper half segment
+ if (grid[row - 1][col] != WALL)
+ // upper empty
+ if (grid[row - 1][col + 1] != WALL)
+ // upper-right empty
+ {
+ g.drawArc(x + 16 + 7 - 6, y + 7 - 6, 12, 12, 90, 100);
+ } else {
+ g.drawLine(x + 17, y, x + 17, y + 7);
+ }
+ else {
+ g.drawLine(x + 8, y - 2, x + 17, y - 2);
+ g.drawLine(x + 17, y - 2, x + 17, y + 7);
+ }
+ break;
+
+ case NORTH :
+ // draw left half segment
+ if (grid[row][col - 1] != WALL)
+ // left empty
+ if (grid[row - 1][col - 1] != WALL)
+ // left-upper empty
+ {
+ g.drawArc(x + 7 - 6, y - 8 - 6, 12, 12, 180, 100);
+ } else {
+ g.drawLine(x, y - 2, x + 7, y - 2);
+ }
+
+ // Draw right half segment
+ if (grid[row][col + 1] != WALL)
+ // right empty
+ if (grid[row - 1][col + 1] != WALL)
+ // right-upper empty
+ {
+ g.drawArc(x + 8 - 6, y - 8 - 6, 12, 12, 270, 100);
+ } else {
+ g.drawLine(x + 8, y - 2, x + 16, y - 2);
+ }
+ break;
+
+ case SOUTH :
+ // draw left half segment
+ if (grid[row][col - 1] != WALL)
+ // left empty
+ if (grid[row + 1][col - 1] != WALL)
+ // left-down empty
+ {
+ g.drawArc(x + 7 - 6, y + 16 + 7 - 6, 12, 12, 90, 100);
+ } else {
+ g.drawLine(x, y + 17, x + 7, y + 17);
+ }
+
+ // Draw right half segment
+ if (grid[row][col + 1] != WALL)
+ // right empty
+ if (grid[row + 1][col + 1] != WALL)
+ // right-down empty
+ {
+ g.drawArc(x + 8 - 6, y + 16 + 7 - 6, 12, 12, 0, 100);
+ } else {
+ g.drawLine(x + 8, y + 17, x + 15, y + 17);
+ }
+ break;
+ }
+ }
+
+}
diff --git a/pacman/src/main/java/edu/unl/cse/soft160/pacman/PacMan.java b/pacman/src/main/java/edu/unl/cse/soft160/pacman/PacMan.java
new file mode 100644
index 0000000000000000000000000000000000000000..30b5b4735547b5fc18a3a23a210bee10c388d965
--- /dev/null
+++ b/pacman/src/main/java/edu/unl/cse/soft160/pacman/PacMan.java
@@ -0,0 +1,534 @@
+/**
+ * Copyright (C) 1997-2010 Junyang Gu <mikejyg@gmail.com>
+ *
+ * This file is part of javaiPacman.
+ *
+ * javaiPacman is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * javaiPacman is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with javaiPacman. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package edu.unl.cse.soft160.pacman;
+
+import static edu.unl.cse.soft160.pacman.Constants.Direction;
+import java.awt.*;
+import java.awt.event.*;
+
+/**
+ * the main class of the pacman game
+ */
+public class PacMan extends Frame
+ implements
+ Runnable,
+ KeyListener,
+ WindowListener {
+ private static final long serialVersionUID = 3582431359568375379L;
+ // the timer
+ Thread timer;
+ int timerPeriod = 12; // in miliseconds
+
+ // the timer will increment this variable to signal a frame
+ int signalMove = 0;
+
+ // for graphics
+ final int canvasWidth = 368;
+ final int canvasHeight = 288 + 1;
+
+ // the canvas starting point within the frame
+ int topOffset;
+ int leftOffset;
+
+ // the draw point of maze within the canvas
+ final int iMazeX = 16;
+ final int iMazeY = 16;
+
+ // the off screen canvas for the maze
+ java.awt.Image offScreen;
+ Graphics offScreenG;
+
+ // the objects
+ Maze maze;
+ Interface pac;
+ PowerDot powerDot;
+ Ghost[] ghosts;
+
+ // game counters
+ final int PAcLIVE = 3;
+ int pacRemain;
+ int changePacRemain; // to signal redraw remaining pac
+
+ // score
+ int score;
+ int hiScore;
+ int scoreGhost; // score of eat ghost, doubles every time
+ int changeScore; // signal score change
+ int changeHiScore; // signal change of hi score
+
+ // score images
+ java.awt.Image imgScore;
+ Graphics imgScoreG;
+ java.awt.Image imgHiScore;
+ Graphics imgHiScoreG;
+
+ // game status
+ final int INITIMAGE = 100; // need to wait before paint anything
+ final int STARTWAIT = 0; // wait before running
+ final int RUNNING = 1;
+ final int DEADWAIT = 2; // wait after dead
+ final int SUSPENDED = 3; // suspended during game
+ int gameState;
+
+ final int WAITCOUNT = 100; // 100 frames for wait states
+ int wait; // the counter
+
+ // rounds
+ int round; // the round of current game;
+
+ // whether it is played in a new maze
+ boolean newMaze;
+
+ // the direction specified by key
+ int pacKeyDir;
+ int key = 0;
+ final int NONE = 0;
+ final int SUSPEND = 1; // stop/start
+ final int BOSS = 2; // boss
+
+ // //////////////////////////////////////////////
+ // initialize the object
+ // only called once at the beginning
+ // //////////////////////////////////////////////
+ public PacMan() {
+ super("PacMan");
+
+ // init variables
+ hiScore = 0;
+
+ gameState = INITIMAGE;
+
+ initGUI();
+
+ addWindowListener(this);
+
+ addKeyListener(this);
+
+ setSize(canvasWidth, canvasHeight);
+
+ setVisible(true);
+ }
+
+ void initGUI() {
+ addNotify(); // for updated inset information
+ }
+
+ public void initImages() {
+ // initialize off screen drawing canvas
+ offScreen = createImage(Maze.width, Maze.height);
+ if (offScreen == null)
+ System.out.println("createImage failed");
+ offScreenG = offScreen.getGraphics();
+
+ // initialize maze object
+ maze = new Maze(this, offScreenG);
+
+ // initialize ghosts object
+ // 4 ghosts
+ ghosts = new Ghost[4];
+ for (int i = 0; i < 4; i++) {
+ Color color;
+ if (i == 0)
+ color = Color.red;
+ else if (i == 1)
+ color = Color.blue;
+ else if (i == 2)
+ color = Color.white;
+ else
+ color = Color.orange;
+ ghosts[i] = new Ghost(this, offScreenG, maze, color);
+ }
+
+ // initialize power dot object
+ powerDot = new PowerDot(this, offScreenG, ghosts);
+
+ // initialize pac object
+ pac = new Interface(this, offScreenG, maze, powerDot);
+
+ // initialize the score images
+ imgScore = createImage(150, 16);
+ imgScoreG = imgScore.getGraphics();
+ imgHiScore = createImage(150, 16);
+ imgHiScoreG = imgHiScore.getGraphics();
+
+ imgHiScoreG.setColor(Color.black);
+ imgHiScoreG.fillRect(0, 0, 150, 16);
+ imgHiScoreG.setColor(Color.red);
+ imgHiScoreG.setFont(new Font("Helvetica", Font.BOLD, 12));
+ imgHiScoreG.drawString("HI SCORE", 0, 14);
+
+ imgScoreG.setColor(Color.black);
+ imgScoreG.fillRect(0, 0, 150, 16);
+ imgScoreG.setColor(Color.green);
+ imgScoreG.setFont(new Font("Helvetica", Font.BOLD, 12));
+ imgScoreG.drawString("SCORE", 0, 14);
+ }
+
+ void startTimer() {
+ // start the timer
+ timer = new Thread(this);
+ timer.start();
+ }
+
+ void startGame() {
+ pacRemain = PAcLIVE;
+ changePacRemain = 1;
+
+ score = 0;
+ changeScore = 1;
+
+ newMaze = true;
+
+ round = 1;
+
+ startRound();
+ }
+
+ void startRound() {
+ // new round for maze?
+ if (newMaze == true) {
+ maze.start();
+ powerDot.start();
+ newMaze = false;
+ }
+
+ maze.draw(); // draw maze in off screen buffer
+
+ pac.start();
+ pacKeyDir = Direction.SOUTH.ordinal();
+ for (int i = 0; i < 4; i++)
+ ghosts[i].start(i, round);
+
+ gameState = STARTWAIT;
+ wait = WAITCOUNT;
+ }
+
+ // /////////////////////////////////////////
+ // paint everything
+ // /////////////////////////////////////////
+ public void paint(Graphics g) {
+ if (gameState == INITIMAGE) {
+ // System.out.println("first paint(...)...");
+
+ // init images, must be done after show() because of Graphics
+ initImages();
+
+ // set the proper size of canvas
+ Insets insets = getInsets();
+
+ topOffset = insets.top;
+ leftOffset = insets.left;
+
+ setSize(canvasWidth + insets.left + insets.right, canvasHeight
+ + insets.top + insets.bottom);
+
+ setResizable(false);
+
+ // now we can start timer
+ startGame();
+
+ startTimer();
+
+ }
+
+ g.setColor(Color.black);
+ g.fillRect(leftOffset, topOffset, canvasWidth, canvasHeight);
+
+ changeScore = 1;
+ changeHiScore = 1;
+ changePacRemain = 1;
+
+ paintUpdate(g);
+ }
+
+ void paintUpdate(Graphics g) {
+ // updating the frame
+
+ powerDot.draw();
+
+ for (int i = 0; i < 4; i++)
+ ghosts[i].draw();
+
+ pac.draw();
+
+ // display the offscreen
+ g.drawImage(offScreen, iMazeX + leftOffset, iMazeY + topOffset, this);
+
+ // display extra information
+ if (changeHiScore == 1) {
+ imgHiScoreG.setColor(Color.black);
+ imgHiScoreG.fillRect(70, 0, 80, 16);
+ imgHiScoreG.setColor(Color.red);
+ imgHiScoreG.drawString(Integer.toString(hiScore), 70, 14);
+ g.drawImage(imgHiScore, 8 + leftOffset, 0 + topOffset, this);
+
+ changeHiScore = 0;
+ }
+
+ if (changeScore == 1) {
+ imgScoreG.setColor(Color.black);
+ imgScoreG.fillRect(70, 0, 80, 16);
+ imgScoreG.setColor(Color.green);
+ imgScoreG.drawString(Integer.toString(score), 70, 14);
+ g.drawImage(imgScore, 158 + leftOffset, 0 + topOffset, this);
+
+ changeScore = 0;
+ }
+
+ // update pac life info
+ if (changePacRemain == 1) {
+ int i;
+ for (i = 1; i < pacRemain; i++) {
+ g.drawImage(pac.imagePac[0][0], 16 * i + leftOffset,
+ canvasHeight - 18 + topOffset, this);
+ }
+ g.drawImage(powerDot.imageBlank, 16 * i + leftOffset, canvasHeight
+ - 17 + topOffset, this);
+
+ changePacRemain = 0;
+ }
+ }
+
+ // //////////////////////////////////////////////////////////
+ // controls moves
+ // this is the routine running at the background of drawings
+ // //////////////////////////////////////////////////////////
+ void move() {
+ int k;
+
+ int oldScore = score;
+
+ for (int i = 0; i < 4; i++)
+ ghosts[i].tick(pac.iX, pac.iY, pac.iDir);
+
+ k = pac.move(pacKeyDir);
+
+ if (k == 1) // eaten a dot
+ {
+ changeScore = 1;
+ score += 10 * ((round + 1) / 2);
+ } else if (k == 2) // eaten a powerDot
+ {
+ scoreGhost = 200;
+ }
+
+ if (maze.iTotalDotcount == 0) {
+ gameState = DEADWAIT;
+ wait = WAITCOUNT;
+ newMaze = true;
+ round++;
+ return;
+ }
+
+ for (int i = 0; i < 4; i++) {
+ k = ghosts[i].testCollision(pac.iX, pac.iY);
+ if (k == 1) // kill pac
+ {
+ pacRemain--;
+ changePacRemain = 1;
+ gameState = DEADWAIT; // stop the game
+ wait = WAITCOUNT;
+ return;
+ } else if (k == 2) // caught by pac
+ {
+ score += scoreGhost * ((round + 1) / 2);
+ changeScore = 1;
+ scoreGhost *= 2;
+ }
+ }
+
+ if (score > hiScore) {
+ hiScore = score;
+ changeHiScore = 1;
+ }
+
+ if (changeScore == 1) {
+ if (score / 10000 - oldScore / 10000 > 0) {
+ pacRemain++; // bonus
+ changePacRemain = 1;
+ }
+ }
+ }
+
+ // /////////////////////////////////////////
+ // this is the routine draw each frames
+ // /////////////////////////////////////////
+ public void update(Graphics g) {
+ // System.out.println("update called");
+ if (gameState == INITIMAGE)
+ return;
+
+ // seperate the timer from update
+ if (signalMove != 0) {
+ signalMove = 0;
+
+ if (wait != 0) {
+ wait--;
+ return;
+ }
+
+ switch (gameState) {
+ case STARTWAIT :
+ gameState = RUNNING;
+ break;
+ case RUNNING :
+ if (key == SUSPEND)
+ gameState = SUSPENDED;
+ else
+ move();
+ break;
+ case DEADWAIT :
+ if (pacRemain > 0)
+ startRound();
+ else
+ startGame();
+ gameState = STARTWAIT;
+ wait = WAITCOUNT;
+ pacKeyDir = Direction.SOUTH.ordinal();
+ break;
+ case SUSPENDED :
+ if (key == SUSPEND)
+ gameState = RUNNING;
+ break;
+ }
+ key = NONE;
+ }
+
+ paintUpdate(g);
+ }
+
+ // /////////////////////////////////////
+ // process key input
+ // /////////////////////////////////////
+ public void keyPressed(KeyEvent e) {
+ switch (e.getKeyCode()) {
+ case KeyEvent.VK_RIGHT :
+ case KeyEvent.VK_L :
+ pacKeyDir = Direction.EAST.ordinal();
+ break;
+ case KeyEvent.VK_UP :
+ pacKeyDir = Direction.NORTH.ordinal();
+ break;
+ case KeyEvent.VK_LEFT :
+ pacKeyDir = Direction.WEST.ordinal();
+ break;
+ case KeyEvent.VK_DOWN :
+ pacKeyDir = Direction.SOUTH.ordinal();
+ break;
+ case KeyEvent.VK_S :
+ key = SUSPEND;
+ break;
+ case KeyEvent.VK_B :
+ key = BOSS;
+ break;
+ }
+ }
+
+ public void keyTyped(KeyEvent e) {
+ }
+ public void keyReleased(KeyEvent e) {
+ }
+
+ // /////////////////////////////////////////////////
+ // handles window event
+ // /////////////////////////////////////////////////
+ public void windowOpened(WindowEvent e) {
+ }
+
+ public void windowClosing(WindowEvent e) {
+ dispose();
+ }
+
+ public void windowClosed(WindowEvent e) {
+ }
+
+ public void windowIconified(WindowEvent e) {
+ }
+
+ public void windowDeiconified(WindowEvent e) {
+ }
+
+ public void windowActivated(WindowEvent e) {
+ }
+
+ public void windowDeactivated(WindowEvent e) {
+ }
+
+ // ///////////////////////////////////////////////
+ // the timer
+ // ///////////////////////////////////////////////
+ public void run() {
+ while (true) {
+ try {
+ Thread.sleep(timerPeriod);
+ } catch (InterruptedException e) {
+ return;
+ }
+
+ signalMove++;
+ repaint();
+ }
+ }
+
+ // for applet the check state
+ boolean finalized = false;
+
+ public void dispose() {
+ // kill the thread
+ timer.interrupt();
+
+ // the off screen canvas
+ // java.awt.Image offScreen=null;
+ offScreenG.dispose();
+ offScreenG = null;
+
+ // the objects
+ maze = null;
+ pac = null;
+ powerDot = null;
+ for (int i = 0; i < 4; i++)
+ ghosts[i] = null;
+ ghosts = null;
+
+ // score images
+ imgScore = null;
+ imgHiScore = null;
+ imgScoreG.dispose();
+ imgScoreG = null;
+ imgHiScoreG.dispose();
+ imgHiScoreG = null;
+
+ super.dispose();
+
+ finalized = true;
+ }
+
+ public boolean isFinalized() {
+ return finalized;
+ }
+
+ public void setFinalized(boolean finalized) {
+ this.finalized = finalized;
+ }
+
+ public static void main(String... arguments) {
+ new PacMan();
+ }
+}
diff --git a/pacman/src/main/java/edu/unl/cse/soft160/pacman/PowerDot.java b/pacman/src/main/java/edu/unl/cse/soft160/pacman/PowerDot.java
new file mode 100644
index 0000000000000000000000000000000000000000..79d1b2bc67bd616ee7a2d61af99e4cdae8fcb18a
--- /dev/null
+++ b/pacman/src/main/java/edu/unl/cse/soft160/pacman/PowerDot.java
@@ -0,0 +1,109 @@
+/**
+ * Copyright (C) 1997-2010 Junyang Gu <mikejyg@gmail.com>
+ *
+ * This file is part of javaiPacman.
+ *
+ * javaiPacman is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * javaiPacman is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with javaiPacman. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package edu.unl.cse.soft160.pacman;
+
+import java.awt.*;
+
+public class PowerDot {
+ final int iX[] = {1, 19, 1, 19};
+ final int iY[] = {2, 2, 13, 13};
+
+ final int iShowCount = 32;
+ final int iHideCount = 16;
+
+ int frameCount;
+ int showStatus;
+
+ int iValid[];
+
+ // the applet this object is associated to
+ Window applet;
+ Graphics graphics;
+
+ // the ghosts it controls
+ Ghost[] ghosts;
+
+ // the power dot image
+ java.awt.Image imagePowerDot;
+
+ // the blank image
+ java.awt.Image imageBlank;
+
+ PowerDot(Window a, Graphics g, Ghost[] gh) {
+ applet = a;
+ graphics = g;
+ ghosts = gh;
+
+ // initialize power dot and image
+ iValid = new int[4];
+
+ imagePowerDot = applet.createImage(16, 16);
+ Image.drawPowerDot(imagePowerDot);
+
+ imageBlank = applet.createImage(16, 16);
+ Graphics imageG = imageBlank.getGraphics();
+ imageG.setColor(Color.black);
+ imageG.fillRect(0, 0, 16, 16);
+
+ frameCount = iShowCount;
+ showStatus = 1; // show
+ }
+
+ public void start() {
+ // all power dots available
+ for (int i = 0; i < 4; i++)
+ iValid[i] = 1;
+ }
+
+ void clear(int dot) {
+ graphics.drawImage(imageBlank, iX[dot] * 16, iY[dot] * 16, applet);
+ }
+
+ void eat(int iCol, int iRow) {
+ for (int i = 0; i < 4; i++) {
+ if (iX[i] == iCol && iY[i] == iRow) {
+ iValid[i] = 0;
+ clear(i);
+ }
+ }
+ for (int i = 0; i < 4; i++)
+ ghosts[i].makeEdible();
+ }
+
+ public void draw() {
+ frameCount--;
+ if (frameCount == 0) {
+ if (showStatus == 1) {
+ showStatus = 0;
+ frameCount = iHideCount;
+ } else {
+ showStatus = 1;
+ frameCount = iShowCount;
+ }
+ }
+ for (int i = 0; i < 4; i++) {
+ if (iValid[i] == 1 && showStatus == 1)
+ graphics.drawImage(imagePowerDot, iX[i] * 16, iY[i] * 16,
+ applet);
+ else
+ graphics.drawImage(imageBlank, iX[i] * 16, iY[i] * 16, applet);
+ }
+ }
+}
diff --git a/pacman/src/main/java/edu/unl/cse/soft160/pacman/Speed.java b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Speed.java
new file mode 100644
index 0000000000000000000000000000000000000000..d5358cc30b5e64d59986422ac5c6045e13ed4171
--- /dev/null
+++ b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Speed.java
@@ -0,0 +1,70 @@
+/**
+ * Copyright (C) 1997-2010 Junyang Gu <mikejyg@gmail.com>
+ *
+ * This file is part of javaiPacman.
+ *
+ * javaiPacman is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * javaiPacman is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with javaiPacman. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package edu.unl.cse.soft160.pacman;
+
+/**
+ * speed control
+ *
+ * use init(s,f) to set the frame/step ratio NOTE: s must <= f call start() to
+ * reset counters call isMove per frame to see if step are to be taken
+ */
+public class Speed {
+ // move steps per frames
+ int steps;
+ int frames;
+
+ int frameCount;
+ int stepCount;
+
+ float frameStepRatio;
+
+ Speed() {
+ start(1, 1);
+ }
+
+ public void start(int s, int f) throws Error {
+ if (f < s)
+ throw new Error("Speed.init(...): frame must >= step");
+
+ steps = s;
+ frames = f;
+ frameStepRatio = (float) frames / (float) steps;
+
+ stepCount = steps;
+ frameCount = frames;
+ }
+
+ public boolean isMove() {
+ frameCount--;
+
+ float ratio = (float) frameCount / (float) stepCount;
+
+ if (frameCount == 0)
+ frameCount = frames;
+
+ if (ratio < frameStepRatio) {
+ stepCount--;
+ if (stepCount == 0)
+ stepCount = steps;
+ return true;
+ }
+ return false;
+ }
+}
diff --git a/pacman/src/main/java/edu/unl/cse/soft160/pacman/Utility.java b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Utility.java
new file mode 100644
index 0000000000000000000000000000000000000000..c70ebb8a50a1184e51a1edaee93cedf941a926ab
--- /dev/null
+++ b/pacman/src/main/java/edu/unl/cse/soft160/pacman/Utility.java
@@ -0,0 +1,50 @@
+/**
+ * Copyright (C) 1997-2010 Junyang Gu <mikejyg@gmail.com>
+ *
+ * This file is part of javaiPacman.
+ *
+ * javaiPacman is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * javaiPacman is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with javaiPacman. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package edu.unl.cse.soft160.pacman;
+
+/**
+ * provide some global public utility functions
+ */
+public class Utility {
+ public static int RandDo(int iOdds)
+ // see if it happens within a probability of 1/odds
+ {
+ if (Math.random() * iOdds < 1)
+ return (1);
+ return (0);
+ }
+
+ // return a random number within [0..iTotal)
+ public static int RandSelect(int iTotal) {
+ double a;
+ a = Math.random();
+ a = a * iTotal;
+ return ((int) a);
+ }
+
+ public static int IntSign(int iD) {
+ if (iD == 0)
+ return (0);
+ if (iD > 0)
+ return (1);
+ else
+ return (-1);
+ }
+}
diff --git a/pacman/src/test/java/edu/unl/cse/soft160/pacman/.gitkeep b/pacman/src/test/java/edu/unl/cse/soft160/pacman/.gitkeep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391