package org.test.stg;
import loon.LTexture;
import loon.LTextures;
import loon.Screen;
import loon.component.Actor;
import loon.component.ActorSpeed;
import loon.component.LButton;
import loon.component.LLayer;
import loon.component.LPad;
import loon.event.GameTouch;
import loon.event.SysInput;
import loon.event.SysKey;
import loon.opengl.GLEx;
import loon.utils.MathUtils;
import loon.utils.Speed;
import loon.utils.timer.LTimer;
import loon.utils.timer.LTimerContext;
public class GameScreen extends Screen {
/**
* 杂兵用类
*/
class Enemy extends ActorSpeed {
private boolean exploded;
private int health;
public Enemy(LTexture image) {
super(new Speed(MathUtils.nextInt(360), 2f));
setEnemy(image, image.getWidth());
setFlag("Enemy");
// Action动作延迟50毫秒执行
setDelay(30);
}
@Override
public void action(long t) {
if (this.exploded) {
return;
}
move();
}
public void setEnemy(LTexture image, int size) {
this.health = size;
this.setImage(image);
}
private void explode() {
if (this.exploded) {
return;
}
this.exploded = true;
getLLayer().removeObject(this);
}
public void hit(int damage) {
if (this.exploded) {
return;
}
this.health -= damage;
if (this.health <= 0) {
explode();
}
}
}
/**
* 子弹用类
*/
class Fire extends ActorSpeed {
private int damage = 100;
private int life = 35;
public Fire(Speed speed, LTexture image, float rotation) {
super(speed);
setImage(image);
setRotation(rotation);
setDelay(30);
increaseSpeed(new Speed(rotation, 7f));
}
@Override
public void action(long elapsedTime) {
// 查询子弹生命（持久力）是否耗尽
if (this.life <= 0) {
getLLayer().removeObject(this);
// 查询子弹是否超过边界
} else if (!getLLayer().getCollisionBox().contains(getRectBox())) {
getLLayer().removeObject(this);
} else {
// 移动子弹
move();
// 获得杂兵是否与子弹碰撞，返回唯一值（第一个查询到的）
// PS:此仅为矩形碰撞，更精确可用SpriteImage取Polygon比对
Enemy e = (Enemy) getOnlyCollisionObject("Enemy");
if (e != null) {
getLLayer().removeObject(this);
e.hit(this.damage);
}
this.life -= 1;
}
}
}
/**
* 主角用类
*/
class Hero extends ActorSpeed {
private int minGunFireDelay;
private int gunFireDelay;
private Speed acceleration = new Speed(0, 0);
private LTimer timer = new LTimer(100);
private LTexture fireImage;
public Hero(LTexture image) {
this.setImage(image);
}
public void setMinGunFireDelay(int delay) {
this.minGunFireDelay = delay;
}
public void setAcceleration(int direction, float length) {
acceleration.set(direction, length);
}
public void action(long elapsedTime) {
SysInput input = getLLayer().screenInput();
if (input.isKeyPressed(SysKey.SPACE)) {
fire();
}
if (timer.action(elapsedTime)) {
// 根据左右摇摆来旋转角色
if (input.isKeyPressed(SysKey.LEFT)) {
setRotation(getRotation() - 5);
}
if (input.isKeyPressed(SysKey.RIGHT)) {
setRotation(getRotation() + 5);
}
move();
}
this.gunFireDelay += 1;
}
private void fire() {
if (this.gunFireDelay >= this.minGunFireDelay) {
Fire h = new Fire(getSpeed().copy(), fireImage, getRotation());
getLLayer().addObject(h, getX(), getY());
h.move();
this.gunFireDelay = 0;
}
}
public LTexture getFireImage() {
return fireImage;
}
public void setFireImage(LTexture fireImage) {
this.fireImage = fireImage;
}
}
public void onLoad() {
// 构建一个等于Screen大小的图层，不锁定角色移动范围(为true时将刚性制约角色坐标为Layer内,
// 无论拖拽还是set坐标都无法超出)
final LLayer layer = new LLayer(getWidth(), getHeight(), false);
// 杂兵出现的边界位置
final int enemyWidth = getWidth() - 50;
final int enemyHeight = getHeight() - 50;
// 杂兵1使用的图形大小
final int e1size = 68;
// 主角机图片
final LTexture a1 = LTextures.loadTexture("a1.png");
// 敌人图片
final LTexture e1 = LTextures.loadTexture("e1.png").scale(e1size,
e1size);
// 子弹图片
final LTexture f1 = LTextures.loadTexture("f1.png");
// 此项参数决定了Layer拖拽是否受到限制；当Layer小于Screen大小时，Layer拖拽无法
// 超过Screen的显示范围；当Layer大于Screen大小时，Screen仅允许拖拽Layer能够被
// 显示出来的部分(比如设定一个800x480的Layer在480x320的Screen中，那么无论如何
// 拖拽也仅可见800x480范围内的Layer画面，而不会出现黑边),默认此项开启。
// PS:与标准LGame组件一样，Layer能被拖拽的大前提是setLocked项必须设为false
// layer.setLimitMove(false);
// layer.setLocked(false);
// 此项参数决定了Layer中Actor角色是否能被直接拖拽，默认为true，即可以直接拖拽
// layer.setActorDrag(false);
// 此项参数决定了Layer中Actor角色是否响应鼠标点击，默认为true，即可以直接获得点击事件
// layer.setMouseClick(false);
// 为Layer加载背景
layer.setBackground("back.png");
// 构建按钮1，点击时触发【狼与车夫】机体的战斗事件
LButton button1 = new LButton("b1.png") {
public void downClick() {
// 获得Button所在Layer
LLayer superLayer = getTopLayer();
// 清空Layer中所有LButton按钮
superLayer.removeUIName("Button");
// 构建【狼与车夫】机体
Hero hero = new Hero(a1);
hero.setFireImage(f1);
hero.setAcceleration(0, 0.05f);
hero.setMinGunFireDelay(70);
// 添加主角机并居中
superLayer.addObject(hero);
superLayer.centerOn(hero);
// 在Layer上设置杂兵
superLayer.addObject(new Enemy(e1), enemyWidth, enemyHeight);
superLayer.addObject(new Enemy(e1), enemyWidth, 50);
superLayer.addObject(new Enemy(e1), 50, enemyHeight);
superLayer.addObject(new Enemy(e1), 50, 50);
superLayer.addObject(new Enemy(e1), 50, enemyHeight);
superLayer.addObject(new Enemy(e1), 300, 50);
superLayer.addObject(new Enemy(e1), 300, enemyHeight);
superLayer.addObject(new Enemy(e1), enemyWidth, 300);
// 制作一个固定位置的角色，充当Layer内按钮
Actor click = new Actor("b2.png") {
public void downClick(int x, int y) {
// 当点击此角色时，伪造space事件给Layer（子弹发射）
setKeyDown(SysKey.SPACE);
}
public void upClick(int x, int y) {
// 释放space事件
setKeyUp(SysKey.SPACE);
}
};
// 此角色无视拖拽事件
click.setDrag(false);
superLayer.addObject(click, 10, 260);
// 层级100（loon设定中，层级越高越靠前）
LPad pad = new LPad(300, 100);
pad.setListener(new LPad.ClickListener() {
@Override
public void up() {
setKeyDown(SysKey.LEFT);
}
@Override
public void down() {
setKeyDown(SysKey.RIGHT);
}
@Override
public void left() {
setKeyDown(SysKey.LEFT);
}
@Override
public void right() {
setKeyDown(SysKey.RIGHT);
}
@Override
public void other() {
setKeyUp(SysKey.LEFT);
setKeyUp(SysKey.RIGHT);
}
});
pad.setLayer(0);
add(pad);
pad.setLayer(100);
}
};
// 居中显示按钮1
layer.centerOn(button1);
// 在Layer中添加按钮1
layer.add(button1);
// 层级0
layer.setLayer(0);
// 将Layer添加到Screen当中
add(layer);
}
@Override
public void draw(GLEx g) {
}
@Override
public void alter(LTimerContext timer) {
}
@Override
public void resize(int width, int height) {
}
@Override
public void touchDown(GameTouch e) {
}
@Override
public void touchUp(GameTouch e) {
}
@Override
public void touchMove(GameTouch e) {
}
@Override
public void touchDrag(GameTouch e) {
}
@Override
public void resume() {
}
@Override
public void pause() {
}
@Override
public void close() {
}
}