2011-02-01

http://loon-simple.googlecode.com/files/LGame-0.2.95%28Graphics%20Optimization%29.7z

農(nóng)歷新年前做一個(gè)額外更新，此文件中附帶了目前最新的LGame打包jar及源碼（累計(jì)不足15行代碼的小修正），主要修正了一個(gè)對(duì)于Android環(huán)境來說不合理的圖像刷新方法（JavaSE版無此問題），此修正能讓標(biāo)準(zhǔn)Screen（即最基礎(chǔ)的，自動(dòng)刷新模式的那個(gè)Screen） 顯示速度獲得約3 ~ 7 fps 的上升（視真機(jī)而定）。

另外，此次附帶的最新LGame-Core-0.2.95(指Android與JavaSE兩版)基本等價(jià)于0.3版LGame主體（剩下那0.5是獨(dú)立的SLG模塊，以及一個(gè)webview的內(nèi)部封裝），非必要不會(huì)再有變動(dòng)，至多會(huì)改進(jìn)一些舊有的低效實(shí)現(xiàn)，添加兩三個(gè)新的ActionEvent。當(dāng)然，假如獲得新的BUG反饋小弟也會(huì)及時(shí)修正。

最后，祝愿大家農(nóng)歷新年快樂，宏“兔”大展，萬事如意～

PS:有網(wǎng)友要下面這個(gè)塔防示例的JavaSE版，小弟這次也順便加上了（源碼在jar中），解壓后可以看到代碼除輸入接口API及啟動(dòng)程序部分外與Android版完全一致。

_________________________________________

下載地址(內(nèi)含示例，源碼及jar): http://loon-simple.googlecode.com/files/LGame-0.2.95.7z

此版繼續(xù)修正0.2.9版(及0.2.94)中所發(fā)現(xiàn)的問題并有所擴(kuò)展。

為Screen增加了runFirstScreen、runLastScreen、runPreviousScreen、runNextScreen、runIndexScreen、addScreen、getScreens、getScreenCount等Screen管理接口，以簡(jiǎn)化多Screen運(yùn)行時(shí)的處理流程。

增加ActionEvent管理器，并提供了MoveTo、FireTo、JumpTo、FadeTo、RotateTo、CircleTo等自動(dòng)化事件類，它們是對(duì)常用角色行為的封裝(就是處理一些固定的事件執(zhí)行，比如用MoveTo隨便指定一個(gè)坐標(biāo)就可以讓角色八方向或四方向行走到該處，用FireTo可以直接讓角色向指定位置如子彈一樣發(fā)射出去，以此類推)，具體使用方式可見下例。

修正了所有獲得用戶反饋的前版BUG（準(zhǔn)確的說，是小弟上上周來博客所看到的那些……），對(duì)一些函數(shù)的具體實(shí)現(xiàn)有所改進(jìn)。

下面有一個(gè)非常簡(jiǎn)單的塔防示例，演示了LGame-0.2.95改進(jìn)后的Layer及新增的ActionEvent機(jī)制使用。

示例代碼如下（直接拖拽Layer即可顯示不同區(qū)域畫面）：

package org.loon.test; import java.util.HashMap; import java.util.List; import org.loon.framework.android.game.action.ActionListener; import org.loon.framework.android.game.action.FadeTo; import org.loon.framework.android.game.action.MoveTo; import org.loon.framework.android.game.action.map.Field2D; import org.loon.framework.android.game.action.sprite.StatusBar; import org.loon.framework.android.game.core.LSystem; import org.loon.framework.android.game.core.graphics.LColor; import org.loon.framework.android.game.core.graphics.LImage; import org.loon.framework.android.game.core.graphics.Screen; import org.loon.framework.android.game.core.graphics.device.LGraphics; import org.loon.framework.android.game.core.graphics.window.LPaper; import org.loon.framework.android.game.core.graphics.window.actor.Actor; import org.loon.framework.android.game.core.graphics.window.actor.ActorLayer; import org.loon.framework.android.game.core.graphics.window.actor.Layer; import android.view.MotionEvent; public class TD extends Screen { private int selectTurret = -1; private Field2D field; private String[] turrets = new String[] { "assets/bulletTurret.png", "assets/bombTurret.png", "assets/poisonTurret.png", "assets/laserTurret.png", "assets/bullet.png" }; /** * 子彈用類 * */ class Bullet extends Actor { private int dir; private int damage; private double x, y; private boolean removeFlag; public Bullet(String fileName, int dir, int damage) { this.dir = dir; this.damage = damage; this.setImage(fileName); this.setDelay(50); } protected void addLayer(ActorLayer layer) { this.x = this.getX(); this.y = this.getY(); } public void action(long t) { if (removeFlag) { return; } Object o = null; for (int i = 0; i < 12; i++) { // 矯正彈道位置 double angle = Math.toRadians((double) this.dir); this.x += Math.cos(angle); this.y += Math.sin(angle); this.setLocation((int) this.x + (field.getTileWidth() - this.getWidth()) / 2, (int) this.y + (field.getTileHeight() - this.getHeight()) / 2); o = this.getOnlyCollisionObject(Enemy.class); } // 當(dāng)與敵相撞時(shí) if (o != null) { Enemy e = (Enemy) o; // 減少敵方HP e.hp -= this.damage; e.hpBar.setUpdate(e.hp); removeFlag = true; // 從Layer中刪除自身 getLayer().removeObject(this); return; // 超出游戲畫面時(shí)刪除自身 } else if (this.getX() <= 12 || this.getX() >= this.getLayer().getWidth() - 96 || this.getY() <= 12 || this.getY() >= this.getLayer().getHeight() - 96) { removeFlag = true; this.getLayer().removeObject(this); } } } /** * 炮塔用類 * */ class Turret extends Actor { private int range = 50; private int delay = 10; boolean selected; public Turret(String fileName) { setImage(fileName); setDelay(100); setAlpha(0); } public void addLayer(ActorLayer layer) { // 讓角色漸進(jìn)式出現(xiàn) FadeTo fade = fadeOut(); // 監(jiān)聽漸進(jìn)淡出事件 fade.setActionListener(new ActionListener() { public void process(Actor o) { } public void start(Actor o) { } // 當(dāng)漸進(jìn)完畢時(shí) public void stop(Actor o) { // 旋轉(zhuǎn)90度 rotateTo(90); } }); } public void draw(LGraphics g) { if (selected) { g.setColor(255, 0, 0, 100); g.fillOval(-(range*2-field.getTileWidth())/2, -(range*2-field.getTileHeight())/2, this.range * 2 - 1, this.range * 2 - 1); g.setColor(LColor.red); g.drawOval(-(range*2-field.getTileWidth())/2,-(range*2-field.getTileHeight())/2, this.range * 2 - 1, this.range * 2 - 1); } } public void action(long t) { // 遍歷指定半徑內(nèi)所有Enemy類 List<?> es = this.getCollisionObjects(this.range, Enemy.class); // 當(dāng)敵人存在 if (!es.isEmpty()) { Enemy target = (Enemy) es.get(0); // 旋轉(zhuǎn)炮臺(tái)對(duì)準(zhǔn)Enemy坐標(biāo) setRotation((int) Math.toDegrees(Math.atan2( (target.getY() - this.getY()), (target.getX() - this .getX())))); } // 延遲炮擊 if (this.delay > 0) { --this.delay; } else if (!es.isEmpty()) { // 構(gòu)造炮彈 Bullet bullet = new Bullet(turrets[4], this.getRotation(), 2); // 計(jì)算炮擊點(diǎn) int x = (int) Math.round(Math.cos(Math.toRadians(this .getRotation())) * (double) bullet.getWidth() * 2) + this.getX(); int y = (int) Math.round(Math.sin(Math.toRadians(this .getRotation())) * (double) bullet.getHeight() * 2) + this.getY(); // 注入炮彈到Layer this.getLayer().addObject(bullet, x, y); this.delay = 10; } } } /** * 敵兵用類 * */ class Enemy extends Actor { private int startX, startY; private int endX, endY; private int speed, hp; private boolean removeFlag; // 使用精靈StatusBar充當(dāng)血槽 protected StatusBar hpBar; public Enemy(String fileName, int sx, int sy, int ex, int ey, int speed, int hp) { this.setDelay(300); this.setImage(fileName); this.hpBar = new StatusBar(hp, hp, -5, 18, 25, 5); this.startX = sx; this.startY = sy; this.endX = ex; this.endY = ey; this.speed = speed; this.hp = hp; } public void draw(LGraphics g) { // 繪制精靈 hpBar.createUI(g); } public void action(long t) { // 觸發(fā)精靈事件 hpBar.update(t); if (hp <= 0 && !removeFlag) { // 設(shè)定死亡時(shí)漸變 FadeTo fade = fadeIn(); // 漸變時(shí)間為30毫秒 fade.setSpeed(30); // 監(jiān)聽漸變過程 fade.setActionListener(new ActionListener() { public void process(Actor o) { } public void start(Actor o) { } public void stop(Actor o) { Enemy.this.removeActionEvents(); Enemy.this.getLayer().removeObject(Enemy.this); } }); this.removeFlag = true; } } // 首次注入Layer時(shí)調(diào)用此函數(shù) public void addLayer(final ActorLayer layer) { // 坐標(biāo)矯正，用以讓角色居于瓦片中心 final int offsetX = (getLayer().getField2D().getTileWidth() - this .getWidth()) / 2; final int offsetY = (getLayer().getField2D().getTileWidth() - this .getHeight()) / 2; // 初始化角色在Layer中坐標(biāo) setLocation(startX + offsetX, startY + offsetY); // 命令角色向指定坐標(biāo)(參數(shù)為false為四方向?qū)?，為true時(shí)八方向)自動(dòng)移動(dòng)，并返回移動(dòng)控制器 // PS:endX與endY非顯示位置，所以不必矯正 final MoveTo move = moveTo(endX, endY, false); // 啟動(dòng)角色事件監(jiān)聽 move.setActionListener(new ActionListener() { // 截取事件進(jìn)行中數(shù)據(jù) public void process(Actor o) { // 矯正坐標(biāo)，讓角色居中 o.setLocation(o.getX() + offsetX, o.getY() + offsetY); // 獲得角色移動(dòng)方向 switch (move.getDirection()) { case Field2D.TUP: // 根據(jù)當(dāng)前移動(dòng)方向，變更角色旋轉(zhuǎn)方向（以下同） o.setRotation(270); break; case Field2D.TLEFT: o.setRotation(180); break; case Field2D.TRIGHT: o.setRotation(0); break; case Field2D.TDOWN: o.setRotation(90); break; default: break; } } public void start(Actor o) { } // 當(dāng)角色移動(dòng)完畢時(shí) public void stop(Actor o) { // 從Layer中刪除此角色 layer.removeObject(o); } }); // 設(shè)定移動(dòng)速度 move.setSpeed(speed); } } // 起始點(diǎn) class Begin extends Actor { public Begin(String fileName) { setImage(fileName); } } // 結(jié)束點(diǎn) class End extends Actor { public End(String fileName) { setImage(fileName); } } /** * 拖拽用菜單 * */ class Menu extends Layer { public Menu() { super(128, 240); // 設(shè)定menu層級(jí)高于MapLayer setLayer(101); // 不鎖定menu移動(dòng) setLocked(false); setLimitMove(false); // 鎖定Actor拖拽 setActorDrag(false); setDelay(500); // 設(shè)定Menu背景 LImage image = LImage.createImage(this.getWidth(), this.getHeight(), false); LGraphics g = image.getLGraphics(); g.setColor(LColor.black); g.fillRect(0, 0, getWidth(), getHeight()); g.setColor(LColor.white); g.setFont(15); g.drawString("我是可拖拽菜單", 12, 25); g.dispose(); setBackground(image); LPaper bulletTurret = new LPaper(turrets[0]) { // 當(dāng)選中當(dāng)前按鈕時(shí)，為按鈕繪制選中框(以下同) public void paint(LGraphics g) { if (selectTurret == 0) { g.setColor(LColor.red); g.drawRect(0, 0, this.getWidth() - 2, this.getHeight() - 2); } } public void downClick() { selectTurret = 0; } }; bulletTurret.setLocation(18, 64); LPaper bombTurret = new LPaper(turrets[1]) { public void paint(LGraphics g) { if (selectTurret == 1) { g.setColor(LColor.red); g.drawRect(0, 0, this.getWidth() - 2, this.getHeight() - 2); } } public void downClick() { selectTurret = 1; } }; bombTurret.setLocation(78, 64); LPaper poisonTurret = new LPaper(turrets[2]) { public void paint(LGraphics g) { if (selectTurret == 2) { g.setColor(LColor.red); g.drawRect(0, 0, this.getWidth() - 2, this.getHeight() - 2); } } public void downClick() { selectTurret = 2; } }; poisonTurret.setLocation(18, 134); LPaper laserTurret = new LPaper(turrets[3]) { public void paint(LGraphics g) { if (selectTurret == 3) { g.setColor(LColor.red); g.drawRect(0, 0, this.getWidth() - 2, this.getHeight() - 2); } } public void downClick() { selectTurret = 3; } }; laserTurret.setLocation(78, 134); // 用LPaper制作敵人增加按鈕 LPaper button = new LPaper("assets/button.png") { public void paint(LGraphics g) { g.setColor(LColor.white); g.drawString("增加敵人", 15, 15); } public void downClick() { // 獲得MapLayer MapLayer layer = (MapLayer) getBottomLayer(); // 開始游戲演算 layer.doStart(); } }; button.setLocation(27, 196); // 復(fù)合LPaper到Layer add(bulletTurret); add(bombTurret); add(poisonTurret); add(laserTurret); add(button); setAlpha(0.5F); } public void downClick(int x, int y) { selectTurret = -1; } } /** * 大地圖用Layer */ class MapLayer extends Layer { private boolean start; private int startX, startY, endX, endY; private int index, count; @SuppressWarnings("unchecked") public MapLayer() { super(576, 480, true); // 不鎖定MapLayer拖拽 setLocked(false); // 鎖定MapLayer中角色拖拽 setActorDrag(false); // 設(shè)置MapLayer背景元素(鍵值需要與map.txt文件中標(biāo)識(shí)相對(duì)應(yīng)) HashMap pathMap = new HashMap(10); pathMap.put(new Integer(0), new LImage("assets/sand.png")); pathMap.put(new Integer(1), new LImage("assets/sandTurn1.png")); pathMap.put(new Integer(2), new LImage("assets/sandTurn2.png")); pathMap.put(new Integer(3), new LImage("assets/sandTurn3.png")); pathMap.put(new Integer(4), new LImage("assets/sandTurn4.png")); pathMap.put(new Integer(5), new Begin("assets/base.png")); pathMap.put(new Integer(6), new End("assets/castle.png")); // 為L(zhǎng)ayer加入簡(jiǎn)單的2D地圖背景，瓦片大小32x32，以rock圖片鋪底 setField2DBackground(new Field2D("assets/map.txt", 32, 32), pathMap, "assets/rock.png"); TD.this.field = getField2D(); // 敵人出現(xiàn)坐標(biāo) this.startX = 64; this.startY = 416; // 敵人消失坐標(biāo) this.endX = 480; this.endY = 416; // 設(shè)定MapLayer每隔2秒執(zhí)行一次內(nèi)部Action setDelay(LSystem.SECOND * 2); } public void action(long t) { // 當(dāng)啟動(dòng)標(biāo)識(shí)為true時(shí)執(zhí)行以下操作 if (start) { if (index < 3) { Enemy enemy = null; // 根據(jù)點(diǎn)擊next(增加敵人)的次數(shù)變換敵人樣式 switch (count) { case 0: enemy = new Enemy("assets/enemy.png", startX, startY, endX, endY, 2, 4); break; case 1: enemy = new Enemy("assets/fastEnemy.png", startX, startY, endX, endY, 4, 6); break; case 2: enemy = new Enemy("assets/smallEnemy.png", startX, startY, endX, endY, 3, 10); break; case 3: enemy = new Enemy("assets/bigEnemy.png", startX, startY, endX, endY, 1, 16); break; default: count = 0; enemy = new Enemy("assets/enemy.png", startX, startY, endX, endY, 2, 2); break; } addObject(enemy); index++; // 否則復(fù)位 } else { start = false; index = 0; count++; } } } private Actor o = null; public void downClick(int x, int y) { // 轉(zhuǎn)換鼠標(biāo)點(diǎn)擊區(qū)域?yàn)閿?shù)組地圖坐標(biāo) int newX = x / field.getTileWidth(); int newY = y / field.getTileHeight(); // 當(dāng)選中炮塔(參數(shù)不為-1)且數(shù)組地圖參數(shù)為-1(不可通過)并且無其它角色在此時(shí) if ((o = getOnlyCollisionObjectsAt(x, y)) == null && selectTurret != -1 && field.getType(newY, newX) == -1) { // 添加炮塔 addObject(new Turret(turrets[selectTurret]), newX * field.getTileWidth(), newY * field.getTileHeight()); } if (o != null) { ((Turret) o).selected = true; } } public void upClick(int x, int y) { if (o != null) { ((Turret) o).selected = false; } } public void doStart() { this.start = true; } } public void onLoad() { // 構(gòu)建地圖用Layer MapLayer layer = new MapLayer(); // 居中 centerOn(layer); // 添加MapLayer到Screen add(layer); // 構(gòu)建菜單用Layer Menu menu = new Menu(); // 讓menu居于屏幕右側(cè) rightOn(menu); menu.setY(0); // 添加menu到Screen add(menu); } public void draw(LGraphics g) { } public void onTouchDown(MotionEvent e) { } public void onTouchMove(MotionEvent e) { } public void onTouchUp(MotionEvent e) { } }

運(yùn)行畫面如下所示：

以上已實(shí)現(xiàn)部分待0.3版發(fā)布時(shí)還會(huì)有更進(jìn)一步的改進(jìn)，不過目前最主要的還是修訂SLG模塊，另外在0.2.95遇到BUG的話希望大家能吼一聲，小弟爭(zhēng)取在0.3中全部改好。

下載地址(內(nèi)含示例，源碼及jar): http://loon-simple.googlecode.com/files/LGame-0.2.95.7z
——————————————

2011-01-27

不好意思讓大家久等了，小弟保險(xiǎn)起見等Google維護(hù)過了才上傳（以前吃過一次虧，那次害小弟倒時(shí)差的郵件聯(lián)系了管理員兩天，后來變得不見維護(hù)結(jié)束不踏實(shí)|||），此版本是針對(duì)LGame-0.2.9的最終修訂版，絕大部分0.2.9的BUG在此版中已不復(fù)存在（好吧，小弟承認(rèn)剛才看留言又發(fā)現(xiàn)兩個(gè)漏網(wǎng)BUG，不過對(duì)程序主干沒有影響，都是一、二行搞定的細(xì)節(jié)問題，且不是常用項(xiàng)……）。

應(yīng)該說0.2.95版至少在易用性上又上了一個(gè)臺(tái)階，不是小弟自夸，單就開發(fā)效率和學(xué)習(xí)難度而言，絕大多數(shù)Android游戲引擎都應(yīng)該從此版起被Loon甩在了后面——包括某些引擎的Android移植版在內(nèi)。

LGame-0.2.9版二次修正(LGame-0.2.95，新增塔防示例，已提供下載)