您所在位置：主题：[求助/急]Java Bluej的一个问题
junzhu8424
[专家分：0] 发布于 2008-03-05 06:06:00
This project contains the basic framework for a "Multi-room Doty" game. Notice that Doty is now able to move from room to room. The template starts with only 2 rooms.
Step 1
Add food into the game. Add an Arraylist<Food> foods to the Room class. Also, create a method void addFood(Food f) in the room class. The purpose of this method is give the caller the ability to add foods to each room.
In the constructor of the game class, you can setup your game by adding foods to each room:
public Game()
{
roomLeft = new Room(10, 15, 10, "The left room");
roomRight = new Room(10, 15, 10, "The right room");
// Setup the left room
roomLeft.setExits(null, roomRight, null, null);
roomLeft.setTextureEast("textures/door.gif");
roomLeft.addFood(new Food(1, 1, 4));
roomLeft.addFood(new Food(4, 1, 8));
roomLeft.addFood(new Food(7, 1, 3));
// Setup the right room
roomRight.setExits(null, null, null, roomLeft);
roomRight.setTextureWest("textures/door.gif");
roomRight.addFood(new Food(2, 1, 4));
roomRight.addFood(new Food(5, 1, 3));
roomRight.addFood(new Food(6, 1, 3));
doty1 = new Doty(5, 1, 1);
}
Every time Doty moves to a different room, make sure that all the foods are added back to the environment.
Step 2
We want Doty to be able to eat up the foods. Add a private method void checkFood(). This method will be called every frame. The purpose of this method is to check if Doty is close to any of the foods in the current room. Make the food disappear if Doty is close to any of the foods.
Step 3
Right now, each room can only have 2 exits. Doty can also move out of the wall on the north and south directions. Modify the Room class as well as the checkWall() method so that each room can now have 4 exits (north, east, south, west).
Create a map of 5 rooms as show below:
[ North Room ]
[ West Room ] [ Middle Room ] [ East Room ]
[ South Room ]
Start Doty in the middle room. Put foods in all of the rooms. End the game when all foods are eaten.
其中每个class初始给的code 如下:
1) Game class的:
import java.util.ArrayList;
import env3d.Env;
/**
* This is the main Game class. It is the main entry point of our game and contains the control
* loop and all the various support methods.
*
* Only the play method is meant to be called by the caller to start the game.
*
* @author (your name)
* @version (a version number or a date)
*/
public class Game
{
private boolean finished;
private Doty doty;
private Env env;
private Room roomLeft, roomRight;
private Room currentRoom;
/**
* The constructor of the game. It sets up all the room information
* and the doty's position.
*/
public Game()
{
roomLeft = new Room(10, 15, 10);
roomRight = new Room(10, 15, 10);
roomLeft.setExits(null, roomRight);
roomLeft.setTextureEast("textures/door.gif");
roomRight.setExits(roomLeft, null);
roomRight.setTextureWest("textures/door.gif");
doty = new Doty(5, 1, 1);
}
/**
* This is the main game loop. Try to keep it as short
* as possible.
*/
public void play()
{
finished = false;
// Create a new environment
env = new Env();
// Starts with roomLeft
currentRoom = roomLeft;
env.setRoom(currentRoom);
// Adding doty to the environment
env.addObject(doty);
// Position the camera
env.setCameraXYZ(5, 14, 9);
env.setCameraPitch(-75);
// Disable mouse and camera control
env.setDefaultControl(false);
while (finished == false)
{
processInput();
checkWall();
env.advanceOneFrame();
}
System.exit(0);
}
/**
* Checks keyboard input
*/
private void processInput()
{
int currentKey = env.getKey();
if (currentKey == 1) {
finished = true;
} else if (currentKey == 200) {
// Up arrow
doty.moveZ(-1);
} else if (currentKey == 208) {
// Down arrow
doty.moveZ(1);
} else if (currentKey == 203) {
// Left arrow
doty.moveX(-1);
} else if (currentKey == 205) {
// Right arrow
doty.moveX(1);
}
}
/**
* Check to see if doty has hit a wall. It then tries to determine
* if doty should be moved to the next room.
*/
private void checkWall()
{
if (doty.getX() > currentRoom.getWidth()-doty.getScale()) {
// Going east
if (currentRoom.getEastExit() != null) {
currentRoom = currentRoom.getEastExit();
env.setRoom(currentRoom);
doty.setX(doty.getScale());
env.addObject(doty);
} else {
// Doty has hit a wall
doty.setX(currentRoom.getWidth()-doty.getScale());
}
} else if (doty.getX() < doty.getScale()) {
// Going west
if (currentRoom.getWestExit() != null) {
currentRoom = currentRoom.getWestExit();
env.setRoom(currentRoom);
doty.setX(currentRoom.getWidth()-doty.getScale());
env.addObject(doty);
} else {
// Doty has hit a wall
doty.setX(doty.getScale());
}
}
}
/**
* Basic distance method. It calculates the distance between 2 objects given
* 2 sets of x, y, and z coordinates.
*/
private float distance(float x1, float x2, float y1, float y2, float z1, float z2) {
float xdiff, ydiff, zdiff;
xdiff = x2 - x1;
ydiff = y2 - y1;
zdiff = z2 - z1;
return (float) Math.sqrt(xdiff*xdiff + ydiff*ydiff + zdiff*zdiff);
}
}
2)room class的
import java.util.ArrayList;
/**
* The Room class represents a generic room.
* The dimensions of the room is flexible
*
* @author (your name)
* @version (a version number or a date)
*/
public class Room
{
// instance variables - replace the example below with your own
private float width, height, depth;
private String textureNorth, textureSouth, textureEast, textureWest;
private Room exitEast, exitWest;
/**
* Constructor for objects of class Room. Allows the
* caller to create rooms of different dimensions.
*/
public Room(float w, float h, float d)
{
width = w;
height = h;
depth = d;
textureNorth = "textures/fence0.jpg";
textureEast = "textures/fence0.jpg";
textureSouth = "textures/fence0.jpg";
textureWest = "textures/fence0.jpg";
}
/**
* Sets the north texture of the room
*
* @param fileName name of the texture file
*/
public void setTextureNorth(String fileName)
{
textureNorth = fileName;
}
/**
* Sets the east texture of the room
*
* @param fileName name of the texture file
*/
public void setTextureEast(String fileName)
{
textureEast = fileName;
}
/**
* Sets the south texture of the room
* @param fileName name of the texture file
*/
public void setTextureSouth(String fileName)
{
textureSouth = fileName;
}
/**
* Sets the west texture of the room
* @param fileName name of the texture file
*/
public void setTextureWest(String fileName)
{
textureWest = fileName;
}
/**
* Every object of the room class can have 2 exits.
* Each exit is actually a pointer to another room.
* We can essentially create a long corridor.
*
* @param west The west exit
* @param east The east exit
*/
public void setExits(Room west, Room east)
{
exitEast = east;
exitWest = west;
}
/**
* Returns the east exit room to the caller
*/
public Room getEastExit()
{
return exitEast;
}
/**
* Returns the west exit room to the caller
*/
public Room getWestExit()
{
return exitWest;
}
/**
* Returns the width of the room
*/
public float getWidth()
{
return width;
}
/**
* Returns the depth of the room
*/
public float getDepth()
{
return depth;
}
}
Step 1
Add food into the game. Add an Arraylist<Food> foods to the Room class. Also, create a method void addFood(Food f) in the room class. The purpose of this method is give the caller the ability to add foods to each room.
In the constructor of the game class, you can setup your game by adding foods to each room:
public Game()
{
roomLeft = new Room(10, 15, 10, "The left room");
roomRight = new Room(10, 15, 10, "The right room");
// Setup the left room
roomLeft.setExits(null, roomRight, null, null);
roomLeft.setTextureEast("textures/door.gif");
roomLeft.addFood(new Food(1, 1, 4));
roomLeft.addFood(new Food(4, 1, 8));
roomLeft.addFood(new Food(7, 1, 3));
// Setup the right room
roomRight.setExits(null, null, null, roomLeft);
roomRight.setTextureWest("textures/door.gif");
roomRight.addFood(new Food(2, 1, 4));
roomRight.addFood(new Food(5, 1, 3));
roomRight.addFood(new Food(6, 1, 3));
doty1 = new Doty(5, 1, 1);
}
Every time Doty moves to a different room, make sure that all the foods are added back to the environment.
Step 2
We want Doty to be able to eat up the foods. Add a private method void checkFood(). This method will be called every frame. The purpose of this method is to check if Doty is close to any of the foods in the current room. Make the food disappear if Doty is close to any of the foods.
Step 3
Right now, each room can only have 2 exits. Doty can also move out of the wall on the north and south directions. Modify the Room class as well as the checkWall() method so that each room can now have 4 exits (north, east, south, west).
Create a map of 5 rooms as show below:
[ North Room ]
[ West Room ] [ Middle Room ] [ East Room ]
[ South Room ]
Start Doty in the middle room. Put foods in all of the rooms. End the game when all foods are eaten.
其中每个class初始给的code 如下:
1) Game class的:
import java.util.ArrayList;
import env3d.Env;
/**
* This is the main Game class. It is the main entry point of our game and contains the control
* loop and all the various support methods.
*
* Only the play method is meant to be called by the caller to start the game.
*
* @author (your name)
* @version (a version number or a date)
*/
public class Game
{
private boolean finished;
private Doty doty;
private Env env;
private Room roomLeft, roomRight;
private Room currentRoom;
/**
* The constructor of the game. It sets up all the room information
* and the doty's position.
*/
public Game()
{
roomLeft = new Room(10, 15, 10);
roomRight = new Room(10, 15, 10);
roomLeft.setExits(null, roomRight);
roomLeft.setTextureEast("textures/door.gif");
roomRight.setExits(roomLeft, null);
roomRight.setTextureWest("textures/door.gif");
doty = new Doty(5, 1, 1);
}
/**
* This is the main game loop. Try to keep it as short
* as possible.
*/
public void play()
{
finished = false;
// Create a new environment
env = new Env();
// Starts with roomLeft
currentRoom = roomLeft;
env.setRoom(currentRoom);
// Adding doty to the environment
env.addObject(doty);
// Position the camera
env.setCameraXYZ(5, 14, 9);
env.setCameraPitch(-75);
// Disable mouse and camera control
env.setDefaultControl(false);
while (finished == false)
{
processInput();
checkWall();
env.advanceOneFrame();
}
System.exit(0);
}
/**
* Checks keyboard input
*/
private void processInput()
{
int currentKey = env.getKey();
if (currentKey == 1) {
finished = true;
} else if (currentKey == 200) {
// Up arrow
doty.moveZ(-1);
} else if (currentKey == 208) {
// Down arrow
doty.moveZ(1);
} else if (currentKey == 203) {
// Left arrow
doty.moveX(-1);
} else if (currentKey == 205) {
// Right arrow
doty.moveX(1);
}
}
/**
* Check to see if doty has hit a wall. It then tries to determine
* if doty should be moved to the next room.
*/
private void checkWall()
{
if (doty.getX() > currentRoom.getWidth()-doty.getScale()) {
// Going east
if (currentRoom.getEastExit() != null) {
currentRoom = currentRoom.getEastExit();
env.setRoom(currentRoom);
doty.setX(doty.getScale());
env.addObject(doty);
} else {
// Doty has hit a wall
doty.setX(currentRoom.getWidth()-doty.getScale());
}
} else if (doty.getX() < doty.getScale()) {
// Going west
if (currentRoom.getWestExit() != null) {
currentRoom = currentRoom.getWestExit();
env.setRoom(currentRoom);
doty.setX(currentRoom.getWidth()-doty.getScale());
env.addObject(doty);
} else {
// Doty has hit a wall
doty.setX(doty.getScale());
}
}
}
/**
* Basic distance method. It calculates the distance between 2 objects given
* 2 sets of x, y, and z coordinates.
*/
private float distance(float x1, float x2, float y1, float y2, float z1, float z2) {
float xdiff, ydiff, zdiff;
xdiff = x2 - x1;
ydiff = y2 - y1;
zdiff = z2 - z1;
return (float) Math.sqrt(xdiff*xdiff + ydiff*ydiff + zdiff*zdiff);
}
}
2)room class的
import java.util.ArrayList;
/**
* The Room class represents a generic room.
* The dimensions of the room is flexible
*
* @author (your name)
* @version (a version number or a date)
*/
public class Room
{
// instance variables - replace the example below with your own
private float width, height, depth;
private String textureNorth, textureSouth, textureEast, textureWest;
private Room exitEast, exitWest;
/**
* Constructor for objects of class Room. Allows the
* caller to create rooms of different dimensions.
*/
public Room(float w, float h, float d)
{
width = w;
height = h;
depth = d;
textureNorth = "textures/fence0.jpg";
textureEast = "textures/fence0.jpg";
textureSouth = "textures/fence0.jpg";
textureWest = "textures/fence0.jpg";
}
/**
* Sets the north texture of the room
*
* @param fileName name of the texture file
*/
public void setTextureNorth(String fileName)
{
textureNorth = fileName;
}
/**
* Sets the east texture of the room
*
* @param fileName name of the texture file
*/
public void setTextureEast(String fileName)
{
textureEast = fileName;
}
/**
* Sets the south texture of the room
* @param fileName name of the texture file
*/
public void setTextureSouth(String fileName)
{
textureSouth = fileName;
}
/**
* Sets the west texture of the room
* @param fileName name of the texture file
*/
public void setTextureWest(String fileName)
{
textureWest = fileName;
}
/**
* Every object of the room class can have 2 exits.
* Each exit is actually a pointer to another room.
* We can essentially create a long corridor.
*
* @param west The west exit
* @param east The east exit
*/
public void setExits(Room west, Room east)
{
exitEast = east;
exitWest = west;
}
/**
* Returns the east exit room to the caller
*/
public Room getEastExit()
{
return exitEast;
}
/**
* Returns the west exit room to the caller
*/
public Room getWestExit()
{
return exitWest;
}
/**
* Returns the width of the room
*/
public float getWidth()
{
return width;
}
/**
* Returns the depth of the room
*/
public float getDepth()
{
return depth;
}
}