isoj2me_alpha_0_4.zip_Alpha_手机引擎_手机游戏引擎

package isoj2me; import java.util.*; import javax.microedition.lcdui.*; /** * <p>isoj2me: Board</b> * <p>This is the main class. It manages a Board where you can add, remove and move Characters and Items. It manages Maps too. This class perform the draw method to paint the Board on the device</p> * <p>Copyright: Copyright (c) 2004</p> * <p>License: Lesser GPL (http://www.gnu.org)</p> * <p>Company: <a href=http://www.mondonerd.com target="_blank">Mondonerd.com</a></p> * @author Massimo Maria Avvisati * @version alpha 0.4 */ public class Board { public Map map; public static Hashtable tiles = new Hashtable(20); private int tileWidth, tileHeight; private Hashtable charactersPositions = new Hashtable(20); private Hashtable itemsPositions = new Hashtable(20); public Hashtable characters = new Hashtable(); public Hashtable items = new Hashtable(); public String tileSet = ""; /** * Constructor. The tileset basic name will be an empty string. */ public Board() { } /** * Constructor. The tileset basic name will be tileSet and it will be used when loading tiles image files. * @param tileSet basic name for tile files */ public Board(String tileSet) { this.tileSet = tileSet; } /** * Add a Character to the Board. * @param c Character object to add */ public void putCharacter(isoj2me.Character c) { charactersPositions.put(c.x + "_" + c.y + "_" + c.z, c); characters.put(c.name, c); } /** * Create and then add a Character to the Board. * @param name name of the Character * @param x x * @param y y * @param z z */ public void putCharacter(String name, int x, int y, int z) { isoj2me.Character c = new isoj2me.Character(name, x, y, z); charactersPositions.put(x + "_" + y + "_" + z, c); characters.put(c.name, c); } /** * Add an Item to the Board * @param i Item object to add */ public void putItem(isoj2me.Item i) { itemsPositions.put(i.x + "_" + i.y + "_" + i.z, i); items.put(i.name, i); } /** * Create and then add an Item to the Board. * @param name name of the Item * @param x x * @param y y * @param z z */ public void putItem(String name, int x, int y, int z) { isoj2me.Item i = new isoj2me.Item(name, x, y, z); itemsPositions.put(x + "_" + y + "_" + z, i); items.put(i.name, i); } /** * Remove a Character from the Board * @param c Character object to remove */ public void removeCharacter(isoj2me.Character c) { charactersPositions.remove(c.x + "_" + c.y + "_" + c.z); characters.remove(c.name); } /** * Remove an Item from the Board * @param i Item object to remove */ public void removeItem(isoj2me.Item i) { itemsPositions.remove(i.x + "_" + i.y + "_" + i.z); items.remove(i.name); } /** * If there is a Character in the x, y, z position of the Board it returns its name. Return null if there is no character. * @param x x * @param y y * @param z z * @return Character name */ public String isCharacter(int x, int y, int z) { String result = null; if (charactersPositions.containsKey(x + "_" + y + "_" + z)) { result = charactersPositions.get(x + "_" + y + "_" + z).toString(); } return result; } /** * If there is a Item in the x, y, z position of the Board it returns its name. Return null if there is no item. * @param x x * @param y y * @param z z * @return Item name */ public String isItem(int x, int y, int z) { String result = null; if (itemsPositions.containsKey(x + "_" + y + "_" + z)) { result = itemsPositions.get(x + "_" + y + "_" + z).toString(); } return result; } /** * Move a Character on the Board * @param c Character to move * @param oldX old x * @param oldY old y * @param oldZ old z * @param newX new x * @param newY new y * @param newZ new z * @param overwrite true if you want to overwrite an existing Character that stays in the new position * @return true if the movement was done * @todo use the Character c to know oldX, oldY, oldZ and to change c coords. */ public boolean moveCharacter(isoj2me.Character c, int oldX, int oldY, int oldZ, int newX, int newY, int newZ, boolean overwrite) { if (charactersPositions.remove(oldX + "_" + oldY + "_" + oldZ) != null) { if (overwrite != true) { if (!charactersPositions.containsKey(newX + "_" + newY + "_" + newZ)) { charactersPositions.put(newX + "_" + newY + "_" + newZ, c); return true; } else { return false; } } else { charactersPositions.put(newX + "_" + newY + "_" + newZ, charactersPositions.get(oldX + "_" + oldY + "_" + oldZ)); charactersPositions.remove(oldX + "_" + oldY + "_" + oldZ); } return true; } else { return false; } } /** * Move an Item on the Board * @param i Item to move * @param oldX old x * @param oldY old y * @param oldZ old z * @param newX new x * @param newY new y * @param newZ new z * @param overwrite true if you want to overwrite an existing Item that stays in the new position * @return true if the movement was done * * @todo use the Item i to know oldX, oldY, oldZ and to change c coords. */ public boolean moveItem(isoj2me.Item i, int oldX, int oldY, int oldZ, int newX, int newY, int newZ, boolean overwrite) { if (itemsPositions.remove(oldX + "_" + oldY + "_" + oldZ) != null) { if (overwrite != true) { if (!itemsPositions.containsKey(newX + "_" + newY + "_" + newZ)) { itemsPositions.put(newX + "_" + newY + "_" + newZ, i); return true; } else { return false; } } else { itemsPositions.put(newX + "_" + newY + "_" + newZ, charactersPositions.get(oldX + "_" + oldY + "_" + oldZ)); itemsPositions.remove(oldX + "_" + oldY + "_" + oldZ); } return true; } else { return false; } } /** * This method change the shape of the basic tile. This affect the coordinates of the tiles painted by the <b>draw()</b> method * @param width the width of the tile * @param height the distance between the base of the tile file and the "floor" of the basic tile */ public void setTileSize(int width, int height) { tileWidth = width; tileHeight = height; } /** * This method call the Map() constructor passing the base name for the map files and the number of layers * @param baseFilename base name for the map files * @param numberOfLayers number of layers to load */ public void createMap(String baseFilename, int numberOfLayers) { map = new Map(baseFilename, numberOfLayers); } /** * This one of the main method of this class. It paint on the given Graphics the board with its tiles and characters. * @param x where to paint on the Graphics (x) * @param y where to paint on the Graphics (y) * @param cellX starting cell on the map (x) * @param cellY starting cell on the mpa (y) * @param width width of the map area to be painted (starting from cellX) * @param height height of the map area to be painted (starting from cellY) * @param g Graphics object where to paint */ public void draw(int x, int y, int cellX, int cellY, int width, int height, Graphics g) { if (cellX < 0) { cellX = 0; } if (cellY < 0) { cellY = 0; } if (cellX > map.getWidth()) { cellX = map.getWidth(); } if (cellY > map.getHeight()) { cellY = map.getHeight(); } int x_temp, y_temp; x_temp = x; y = y; int x_init = x_temp; int y_temp2 = 0; for (int i = 0; i < height; i++) { // y cycle y_temp = y + tileHeight * i; x_temp = x_init - (tileWidth / 2) * i; for (int j = 0; j < width; j++) { // x cycle y_temp2 = y_temp; for (int k = 0; k < map.numberOfLayers; k++) {