From de06f665cd379f96fe14561822784b2512828716 Mon Sep 17 00:00:00 2001
From: Rynhardt Kruger <rynkruger@gmail.com>
Date: Mon, 28 Nov 2011 04:26:12 +0200
Subject: [PATCH] Added loading and saving of areas using javascript.

---
 examples/AlienRemake.java                |  4 +--
 src/org/alterverse/shapes/Box.java       |  4 +++
 src/org/alterverse/shapes/Shape.java     | 10 ++++++
 src/org/alterverse/world/Area.java       | 56 ++++++++++++++++++++++++++++++++
 src/org/alterverse/world/GameObject.java | 23 +++++++++++++
 5 files changed, 95 insertions(+), 2 deletions(-)

diff --git a/examples/AlienRemake.java b/examples/AlienRemake.java
index b610a1f..84a734f 100644
--- a/examples/AlienRemake.java
+++ b/examples/AlienRemake.java
@@ -128,10 +128,10 @@ case 'q':
 engine.quit();
 break;
 case 's':
-area.save("space.sav");
+area.saveJs("space.sav");
 break;
 case 'l':
-area.load("space.sav");
+area.loadJs("space.sav");
 break;
 }
 else
diff --git a/src/org/alterverse/shapes/Box.java b/src/org/alterverse/shapes/Box.java
index 18961e7..b2b2be1 100644
--- a/src/org/alterverse/shapes/Box.java
+++ b/src/org/alterverse/shapes/Box.java
@@ -55,4 +55,8 @@ return y+d;
 public double maxZ() {
 return z+h;
 }
+
+public String toJs() {
+return this.getClass().getName()+"("+x+","+y+","+z+","+w+","+d+","+h+")";
+}
 }
diff --git a/src/org/alterverse/shapes/Shape.java b/src/org/alterverse/shapes/Shape.java
index b18bb26..e0d54d4 100644
--- a/src/org/alterverse/shapes/Shape.java
+++ b/src/org/alterverse/shapes/Shape.java
@@ -28,6 +28,12 @@ double z;
 public Shape() {
 }
 
+public Shape(double x, double y, double z) {
+this.x=x;
+this.y=y;
+this.z=z;
+}
+
 public void setPosition(double x, double y, double z) {
 this.x=x;
 this.y=y;
@@ -77,4 +83,8 @@ return (minZ()+maxZ())/2.0;
 public double getVolume() {
 return (maxX()-minX())*(maxY()-minY())*(maxZ()-minZ());
 }
+
+public String toJs() {
+return this.getClass().getName()+"("+x+","+y+","+z+")";
+}
 }
diff --git a/src/org/alterverse/world/Area.java b/src/org/alterverse/world/Area.java
index b4ee0e9..f699921 100644
--- a/src/org/alterverse/world/Area.java
+++ b/src/org/alterverse/world/Area.java
@@ -22,9 +22,11 @@ package org.alterverse.world;
 import java.io.*;
 import java.util.ArrayList;
 import java.util.Vector;
+import javax.script.*;
 
 public class Area  implements Serializable {
 ArrayList<GameObject> objects;
+GameObject player = null;
 Vector<GameObject> dellist;
 boolean gravity;
 
@@ -53,6 +55,11 @@ public void add(GameObject obj) {
 objects.add(obj);
 }
 
+public void addAsPlayer(GameObject obj) {
+add(obj);
+setPlayer(obj);
+}
+
 public void remove(GameObject obj) {
 dellist.add(obj);
 }
@@ -95,4 +102,53 @@ ret.add(i);
 }
 return ret;
 }
+
+public void setPlayer(GameObject obj) {
+player=obj;
+}
+
+public GameObject getPlayer() {
+return player;
+}
+
+public boolean loadJs(String file, boolean fixedOnly) {
+try {
+ScriptEngineManager sm = new ScriptEngineManager();
+ScriptEngine e = sm.getEngineByName("javascript");
+if (fixedOnly) {
+for (int i = 0; i < objects.size(); i++)
+if (! (objects.get(i) instanceof MovableObject)) {
+objects.remove(objects.get(i));
+i--;
+}
+} else
+objects.clear();
+e.put("area",this);
+e.eval(new FileReader(file));
+return true;
+} catch(Exception x) {
+x.printStackTrace();
+return false;
+}
+}
+
+public void saveJs(String file,boolean fixedOnly) {
+try {
+FileWriter fw = new FileWriter(file);
+if (getGravity())
+fw.write("area.setGravity(true);\n");
+else
+fw.write("area.setGravity(false);\n");
+for (GameObject obj: objects) {
+if (fixedOnly&&obj instanceof MovableObject)
+continue;
+String var = "v"+System.currentTimeMillis();
+fw.write(obj.toJs(var)+"\n");
+fw.write("area.add("+var+");\n");
+}
+fw.close();
+} catch(Exception x) {
+x.printStackTrace();
+}
+}
 }
diff --git a/src/org/alterverse/world/GameObject.java b/src/org/alterverse/world/GameObject.java
index b77c56a..8ea72b4 100644
--- a/src/org/alterverse/world/GameObject.java
+++ b/src/org/alterverse/world/GameObject.java
@@ -35,6 +35,7 @@ double prevY;
 double prevZ;
 ArrayList<Sound> sounds;
 boolean solid;
+GameObject parent=null;
 Area myArea;
 Vector <GameObject> children;
 public GameObject(Area area) {
@@ -252,6 +253,7 @@ return max;
 public void addChild(GameObject child) {
 children.add(child);
 myArea.add(child);
+child.setParent(this);
 }
 
 public void onRemove() {
@@ -262,6 +264,7 @@ myArea.remove(obj);
 public void removeChild(GameObject child) {
 children.remove(child);
 myArea.remove(child);
+child.setParent(null);
 }
 
 public GameObject getChild(int i) {
@@ -311,4 +314,24 @@ if (num>0)
 return true;
 return false;
 }
+
+public void setParent(GameObject obj) {
+parent=obj;
+}
+
+public GameObject getParent() {
+return parent;
+}
+
+public String toJs(String varname) {
+String ret = "var "+varname+" = "+this.getClass().getName()+"(area);\n";
+ret+=varname+".setPosition("+x+","+y+","+z+");\n";
+if (getSolid())
+ret+=varname+".setSolid(true);\n";
+else
+ret+=varname+".setSolid(false);\n";
+for (Shape s:shapes)
+ret+=varname+".addShape("+s.toJs()+");\n";
+return ret;
+}
 }
-- 
2.11.4.GIT