implement ignoring fully transparent sprites

This reverts commit 3f4bf58375.

ATCS_JAR.jardesc

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <jardesc>
-    <jar path="ATContentStudio/ATCS_v0.6.16.jar"/>
+    <jar path="ATContentStudio/ATCS_v0.6.18.jar"/>
     <options buildIfNeeded="true" compress="true" descriptionLocation="/ATContentStudio/ATCS_JAR.jardesc" exportErrors="true" exportWarnings="true" includeDirectoryEntries="false" overwrite="false" saveDescription="true" storeRefactorings="false" useSourceFolders="false"/>
     <storedRefactorings deprecationInfo="true" structuralOnly="false"/>
     <selectedProjects/>

hacked-libtiled/tiled/io/TMXMapReader.java

@@ -913,7 +913,8 @@ public class TMXMapReader
     private class MapEntityResolver implements EntityResolver
     {
         public InputSource resolveEntity(String publicId, String systemId) {
-            if (systemId.equals("http://mapeditor.org/dtd/1.0/map.dtd")) {
+            if (systemId.equals("http://mapeditor.org/dtd/1.0/map.dtd") ||
+            	systemId.equals("https://mapeditor.org/dtd/1.0/map.dtd")) {
                 return new InputSource(TMXMapReader.class.getResourceAsStream(
                         "resources/map.dtd"));
             }

hacked-libtiled/tiled/io/TMXMapWriter.java

@@ -153,7 +153,7 @@ public class TMXMapWriter
     }
 
     private void writeMap(Map map, XMLWriter w, String wp) throws IOException {
-        w.writeDocType("map", null, "http://mapeditor.org/dtd/1.0/map.dtd");
+        w.writeDocType("map", null, "https://mapeditor.org/dtd/1.0/map.dtd");
         w.startElement("map");
 
         w.writeAttribute("version", "1.0");

packaging/ATCS_latest

@@ -1 +1 @@
-v0.6.16
+v0.6.18

packaging/Windows/ATCS_Installer.nsi

@@ -1,6 +1,6 @@
 !include MUI2.nsh
 
-!define VERSION "0.6.16"
+!define VERSION "0.6.18"
 !define TRAINER_VERSION "0.1.5"
 !define JAVA_BIN "javaw"
 
@@ -83,16 +83,16 @@ Section install
   FileClose $9
   
   SetOutPath "$INSTDIR\lib\"
-  file "jide-oss.jar"
-  file "ui.jar"
-  file "AndorsTrainer_v${TRAINER_VERSION}.jar"
-  file "junit-4.10.jar"
-  file "json_simple-1.1.jar"
-  file "ATCS_v${VERSION}.jar"
-  file "rsyntaxtextarea.jar"
-  file "prefuse.jar"
-  file "bsh-2.0b4.jar"
-  file "jsoup-1.10.2.jar"
+  file "C:\AT\ATCS_source\lib\jide-oss.jar"
+  file "C:\AT\ATCS_source\lib\ui.jar"
+  file "C:\AT\ATCS_source\lib\AndorsTrainer_v${TRAINER_VERSION}.jar"
+  file "C:\AT\ATCS_source\lib\junit-4.10.jar"
+  file "C:\AT\ATCS_source\lib\json_simple-1.1.jar"
+  file "C:\AT\temp\ATCS_v0.6.18\ATCS_v${VERSION}.jar"
+  file "C:\AT\ATCS_source\lib\rsyntaxtextarea.jar"
+  file "C:\AT\ATCS_source\lib\prefuse.jar"
+  file "C:\AT\ATCS_source\lib\bsh-2.0b4.jar"
+  file "C:\AT\ATCS_source\lib\jsoup-1.10.2.jar"
 
   SetOutPath $INSTDIR
   

res/spritesheets.properties

@@ -1,65 +1,85 @@
 atcs.spritesheet.actorconditions_1.category=actorcondition
 atcs.spritesheet.actorconditions_2.category=actorcondition
 atcs.spritesheet.actorconditions_japozero.category=actorcondition
+atcs.spritesheet.actorconditions_omi1.category=actorcondition
+atcs.spritesheet.actorconditions_omi2.category=actorcondition
+
+atcs.spritesheet.effect_blood3.animate=true
+atcs.spritesheet.effect_blood4.animate=true
+atcs.spritesheet.effect_bluetentacle.animate=true
+atcs.spritesheet.effect_heal2.animate=true
+atcs.spritesheet.effect_miss1.animate=true
+atcs.spritesheet.effect_poison1.animate=true
+atcs.spritesheet.effect_tometik1.animate=true
+atcs.spritesheet.effect_tometik2.animate=true
+
 atcs.spritesheet.items_armours.category=item
 atcs.spritesheet.items_armours_2.category=item
 atcs.spritesheet.items_armours_3.category=item
-atcs.spritesheet.items_weapons.category=item
-atcs.spritesheet.items_weapons_2.category=item
-atcs.spritesheet.items_weapons_3.category=item
-atcs.spritesheet.items_jewelry.category=item
-atcs.spritesheet.items_rings_1.category=item
-atcs.spritesheet.items_necklaces_1.category=item
-atcs.spritesheet.items_consumables.category=item
-atcs.spritesheet.items_japozero.category=item
 atcs.spritesheet.items_books.category=item
+atcs.spritesheet.items_consumables.category=item
+atcs.spritesheet.items_consumables_omi1.category=item
+atcs.spritesheet.items_feygard1.category=item
+atcs.spritesheet.items_g03_package_omi1.category=item
+atcs.spritesheet.items_japozero.category=item
+atcs.spritesheet.items_jewelry.category=item
 atcs.spritesheet.items_misc.category=item
 atcs.spritesheet.items_misc_2.category=item
 atcs.spritesheet.items_misc_3.category=item
 atcs.spritesheet.items_misc_4.category=item
 atcs.spritesheet.items_misc_5.category=item
 atcs.spritesheet.items_misc_6.category=item
+atcs.spritesheet.items_necklaces_1.category=item
+atcs.spritesheet.items_omi2.category=item
 atcs.spritesheet.items_reterski_1.category=item
+atcs.spritesheet.items_rijackson_1.category=item
+atcs.spritesheet.items_rings_1.category=item
 atcs.spritesheet.items_tometik1.category=item
 atcs.spritesheet.items_tometik2.category=item
 atcs.spritesheet.items_tometik3.category=item
+atcs.spritesheet.items_weapons.category=item
+atcs.spritesheet.items_weapons_2.category=item
+atcs.spritesheet.items_weapons_3.category=item
+
 atcs.spritesheet.monsters_armor1.category=monster
+
 atcs.spritesheet.monsters_dogs.category=monster
 atcs.spritesheet.monsters_eye1.category=monster
 atcs.spritesheet.monsters_eye2.category=monster
 atcs.spritesheet.monsters_eye3.category=monster
 atcs.spritesheet.monsters_eye4.category=monster
+
 atcs.spritesheet.monsters_ghost1.category=monster
-atcs.spritesheet.monsters_hydra1.category=monster
-atcs.spritesheet.monsters_hydra1.sizex=64
-atcs.spritesheet.monsters_hydra1.sizey=64
+atcs.spritesheet.monsters_gisons.category=monster
+atcs.spritesheet.monsters_guynmart.category=monster
 atcs.spritesheet.monsters_insects.category=monster
+atcs.spritesheet.monsters_karvis1.category=monster
+atcs.spritesheet.monsters_karvis2.category=monster
+atcs.spritesheet.monsters_ld1.category=monster
+atcs.spritesheet.monsters_ld2.category=monster
 atcs.spritesheet.monsters_liches.category=monster
 atcs.spritesheet.monsters_mage.category=monster
 atcs.spritesheet.monsters_mage2.category=monster
+atcs.spritesheet.monsters_maksiu1.category=monster
 atcs.spritesheet.monsters_man1.category=monster
 atcs.spritesheet.monsters_men.category=monster
 atcs.spritesheet.monsters_men2.category=monster
 atcs.spritesheet.monsters_misc.category=monster
+atcs.spritesheet.monsters_omi1.category=monster
+atcs.spritesheet.monsters_omi1_b.category=monster
+atcs.spritesheet.monsters_omi2.category=monster
 atcs.spritesheet.monsters_rats.category=monster
-atcs.spritesheet.monsters_rogue1.category=monster
-atcs.spritesheet.monsters_skeleton1.category=monster
-atcs.spritesheet.monsters_skeleton2.category=monster
-atcs.spritesheet.monsters_snakes.category=monster
-atcs.spritesheet.monsters_warrior1.category=monster
-atcs.spritesheet.monsters_wraiths.category=monster
-atcs.spritesheet.monsters_zombie1.category=monster
-atcs.spritesheet.monsters_zombie2.category=monster
-atcs.spritesheet.monsters_karvis1.category=monster
-atcs.spritesheet.monsters_karvis2.category=monster
+atcs.spritesheet.monsters_redshrike1.category=monster
 atcs.spritesheet.monsters_rltiles1.category=monster
 atcs.spritesheet.monsters_rltiles2.category=monster
 atcs.spritesheet.monsters_rltiles3.category=monster
 atcs.spritesheet.monsters_rltiles4.category=monster
-atcs.spritesheet.monsters_redshrike1.category=monster
-atcs.spritesheet.monsters_ld1.category=monster
-atcs.spritesheet.monsters_ld2.category=monster
+atcs.spritesheet.monsters_rogue1.category=monster
+atcs.spritesheet.monsters_skeleton1.category=monster
+atcs.spritesheet.monsters_skeleton2.category=monster
+atcs.spritesheet.monsters_snakes.category=monster
 atcs.spritesheet.monsters_tometik1.category=monster
+atcs.spritesheet.monsters_tometik10.category=monster
 atcs.spritesheet.monsters_tometik2.category=monster
 atcs.spritesheet.monsters_tometik3.category=monster
 atcs.spritesheet.monsters_tometik4.category=monster
@@ -68,21 +88,27 @@ atcs.spritesheet.monsters_tometik6.category=monster
 atcs.spritesheet.monsters_tometik7.category=monster
 atcs.spritesheet.monsters_tometik8.category=monster
 atcs.spritesheet.monsters_tometik9.category=monster
-atcs.spritesheet.monsters_tometik10.category=monster
+atcs.spritesheet.monsters_warrior1.category=monster
+atcs.spritesheet.monsters_unknown.category=monster
+atcs.spritesheet.monsters_wraiths.category=monster
+atcs.spritesheet.monsters_zombie1.category=monster
+atcs.spritesheet.monsters_zombie2.category=monster
+
+atcs.spritesheet.monsters_bosses_2x2.category=monster
+atcs.spritesheet.monsters_bosses_2x2.sizex=64
+atcs.spritesheet.monsters_bosses_2x2.sizey=64
+atcs.spritesheet.monsters_cyclops.category=monster
+atcs.spritesheet.monsters_cyclops.sizex=64
+atcs.spritesheet.monsters_cyclops.sizey=96
 atcs.spritesheet.monsters_demon1.category=monster
 atcs.spritesheet.monsters_demon1.sizex=64
 atcs.spritesheet.monsters_demon1.sizey=64
 atcs.spritesheet.monsters_demon2.category=monster
 atcs.spritesheet.monsters_demon2.sizex=64
 atcs.spritesheet.monsters_demon2.sizey=64
-atcs.spritesheet.monsters_cyclops.category=monster
-atcs.spritesheet.monsters_cyclops.sizex=64
-atcs.spritesheet.monsters_cyclops.sizey=96
-atcs.spritesheet.effect_blood3.animate=true
-atcs.spritesheet.effect_blood4.animate=true
-atcs.spritesheet.effect_bluetentacle.animate=true
-atcs.spritesheet.effect_heal2.animate=true
-atcs.spritesheet.effect_poison1.animate=true
-atcs.spritesheet.effect_tometik1.animate=true
-atcs.spritesheet.effect_tometik2.animate=true
-atcs.spritesheet.monsters_guynmart.category=monster
+atcs.spritesheet.monsters_giantbasilisk.category=monster
+atcs.spritesheet.monsters_giantbasilisk.sizex=64
+atcs.spritesheet.monsters_giantbasilisk.sizey=64
+atcs.spritesheet.monsters_hydra1.category=monster
+atcs.spritesheet.monsters_hydra1.sizex=64
+atcs.spritesheet.monsters_hydra1.sizey=64

src/com/gpl/rpg/atcontentstudio/ATContentStudio.java

@@ -43,7 +43,7 @@ import com.gpl.rpg.atcontentstudio.ui.WorkspaceSelector;
 public class ATContentStudio {
 
 	public static final String APP_NAME = "Andor's Trail Content Studio";
-	public static final String APP_VERSION = "v0.6.16";
+	public static final String APP_VERSION = "v0.6.18";
 	
 	public static final String CHECK_UPDATE_URL = "https://andorstrail.com/static/ATCS_latest";
 	public static final String DOWNLOAD_URL = "https://andorstrail.com/viewtopic.php?f=6&t=4806";

src/com/gpl/rpg/atcontentstudio/model/gamedata/JSONElement.java

@@ -38,11 +38,16 @@ public abstract class JSONElement extends GameDataElement {
 			for (Object obj : gameDataElements) {
 				Map jsonObj = (Map)obj;
 				String id  = (String) jsonObj.get("id");
+				try {
 				if (id != null && id.equals(this.id )) {
 					this.parse(jsonObj);
 					this.state = State.parsed;
 					break;
 				}
+				}
+				catch(Exception e){
+					System.out.println("Error in ID: " + id);
+				}
 			}
 		} catch (FileNotFoundException e) {
 			Notification.addError("Error while parsing JSON file "+jsonFile.getAbsolutePath()+": "+e.getMessage());
@@ -53,6 +58,10 @@ public abstract class JSONElement extends GameDataElement {
 		} catch (ParseException e) {
 			Notification.addError("Error while parsing JSON file "+jsonFile.getAbsolutePath()+": "+e.getMessage());
 			e.printStackTrace();
+		} catch (IllegalArgumentException e) {
+			System.out.println(id);
+			Notification.addError("Error while parsing JSON file "+jsonFile.getAbsolutePath()+": "+e.getMessage());
+			e.printStackTrace();
 		} finally {
 			if (reader != null)
 				try {

src/com/gpl/rpg/atcontentstudio/model/gamedata/Requirement.java

@@ -85,6 +85,7 @@ public class Requirement extends JSONElement {
 		,resistancePhysical	// lowers chance to get negative active conditions by monsters (Physical Capacity like Minor fatigue)
 		,resistanceBlood	// lowers chance to get negative active conditions by monsters (Blood Disorder like Weak Poison)
 		,shadowBless
+		,sporeImmunity
 		,crit1			// lowers atk ability
 		,crit2			// lowers def ability ,rejuvenation	// Reduces magnitudes of conditions
 		,rejuvenation	// Reduces magnitudes of conditions

src/com/gpl/rpg/atcontentstudio/model/maps/ReplaceArea.java

@@ -95,7 +95,9 @@ public class ReplaceArea extends MapObject {
 			if (oldSchoolRequirement && Requirement.RequirementType.questProgress.equals(requirement.type) && (requirement.negated == null || !requirement.negated)) {
 				tmxObject.setName(requirement.required_obj_id+":"+((requirement.required_value == null) ? "" : Integer.toString(requirement.required_value)));
 			} else {
-				tmxObject.getProperties().setProperty("requireType", requirement.type.toString());
+				if (requirement.type != null) {
+					tmxObject.getProperties().setProperty("requireType", requirement.type.toString());
+				}
 				if (requirement.required_obj != null) {
 					tmxObject.getProperties().setProperty("requireId", requirement.required_obj.id);
 				} else if (requirement.required_obj_id != null) {

src/com/gpl/rpg/atcontentstudio/ui/AboutEditor.java

@@ -37,17 +37,17 @@ public class AboutEditor extends Editor {
 			"<b>Right click on the left area or use the \"File\" menu to create a project.</b><br/>" +
 			"<br/>" +
 			"Play <a href=\"https://play.google.com/store/apps/details?id=com.gpl.rpg.AndorsTrail\">Andor's Trail</a> for free on your Android device.<br/>" +
-			"Visit <a href=\"http://andorstrail.com/\">the official forum</a> to give or receive help.<br/>" +
+			"Visit <a href=\"https://andorstrail.com/\">the official forum</a> to give or receive help.<br/>" +
 			"Open the project's <a href=\"https://github.com/Zukero/andors-trail/\">GitHub project page</a> to check out the game's source code.<br/>" +
 			"<br/>" +
 			"For content creation help, make sure to use the following resources:<br/>" +
-			"<a href=\"http://andorstrail.com/viewtopic.php?f=6&t=4560\">The contribution guide on the forums</a><br/>" +
-			"<a href=\"http://andorstrail.com/wiki/doku.php?id=andors_trail_wiki:developer_section\">The developer section of the Andor's Trail wiki</a><br/>" +
+			"<a href=\"https://andorstrail.com/viewtopic.php?f=6&t=4560\">The contribution guide on the forums</a><br/>" +
+			"<a href=\"https://andorstrail.com/wiki/doku.php?id=andors_trail_wiki:developer_section\">The developer section of the Andor's Trail wiki</a><br/>" +
 			"<a href=\"https://docs.google.com/document/d/1BwWD1tLgPcmA2bwudrVnOc6f2dkPLFCjWdn7tXlIp5g\">The design outline document on Google Drive/Docs</a><br/>" +
 			"<br/>" +
 			"<font size=+1>Credits:</font><br/>" +
 			"<br/>" +
-			"Author: <a href=\"http://andorstrail.com/memberlist.php?mode=viewprofile&u=2875\">Zukero</a><br/>" +
+			"Author: <a href=\"https://andorstrail.com/memberlist.php?mode=viewprofile&u=2875\">Zukero</a><br/>" +
 			"Licence: <a href=\"http://www.gnu.org/licenses/gpl-3.0.html\">GPL v3</a><br/>" +
 			"Sources are included in this package and on <a href=\"https://github.com/Zukero/ATCS\">GitHub</a>.<br/>" +
 			"<br/>" +

src/com/gpl/rpg/atcontentstudio/ui/map/WorldMapView.java

@@ -521,16 +521,6 @@ public class WorldMapView extends JComponent implements Scrollable {
 			}
 			worldmap.getProject().getMap(id).addBacklink(worldmap);
 		}
-		
-		List<String> toRemove = new ArrayList<String>();
-		for (String s : worldmap.labels.keySet()) {
-			if (!mapLocations.containsKey(s)) {
-				toRemove.add(s);
-			}
-		}
-		for (String s : toRemove) {
-			worldmap.labels.remove(s);
-		}
 	}
 	
 }

src/com/gpl/rpg/atcontentstudio/ui/sprites/SpriteChooser.java

@@ -1,43 +1,34 @@
 package com.gpl.rpg.atcontentstudio.ui.sprites;
 
-import java.awt.BorderLayout;
-import java.awt.GridBagConstraints;
-import java.awt.GridBagLayout;
-import java.awt.Image;
-import java.awt.Point;
+import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.awt.image.BufferedImage;
 import java.util.ArrayList;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
-
-import javax.swing.ButtonGroup;
-import javax.swing.ImageIcon;
-import javax.swing.JDialog;
-import javax.swing.JPanel;
-import javax.swing.JScrollPane;
-import javax.swing.JToggleButton;
-import javax.swing.ScrollPaneConstants;
+import javax.swing.*;
 
 import com.gpl.rpg.atcontentstudio.ATContentStudio;
 import com.gpl.rpg.atcontentstudio.model.Project;
 import com.gpl.rpg.atcontentstudio.model.sprites.Spritesheet;
 import com.gpl.rpg.atcontentstudio.model.sprites.Spritesheet.Category;
+import com.gpl.rpg.atcontentstudio.utils.SpriteUtils;
 
 
 public class SpriteChooser extends JDialog {
 
 	private static final long serialVersionUID = -6018113265015159521L;
-	
+
 	private static final int STD_WIDTH = 32;
 	private static final int STD_HEIGHT = 32;
 	private static final int MAX_PER_ROW = 10;
-	
-	public static Map<Project, Map<Spritesheet.Category, SpriteChooser>> cache = new LinkedHashMap<Project, Map<Spritesheet.Category,SpriteChooser>>();
-	public static Map<Project, Map<Spritesheet.Category, List<Spritesheet>>> cacheValidator = new LinkedHashMap<Project, Map<Category,List<Spritesheet>>>();
-	
-	
+
+	public static Map<Project, Map<Spritesheet.Category, SpriteChooser>> cache = new LinkedHashMap<Project, Map<Spritesheet.Category, SpriteChooser>>();
+	public static Map<Project, Map<Spritesheet.Category, List<Spritesheet>>> cacheValidator = new LinkedHashMap<Project, Map<Category, List<Spritesheet>>>();
+
+
 	public static SpriteChooser getChooser(Project proj, Spritesheet.Category category) {
 		if (cache.get(proj) == null) {
 			cache.put(proj, new LinkedHashMap<Spritesheet.Category, SpriteChooser>());
@@ -46,13 +37,13 @@ public class SpriteChooser extends JDialog {
 			cache.get(proj).put(category, new SpriteChooser(proj, category));
 		} else {
 			List<Spritesheet> spritesheets = new ArrayList<Spritesheet>();
-			for (int i=0; i<proj.getSpritesheetCount(); i++) {
+			for (int i = 0; i < proj.getSpritesheetCount(); i++) {
 				Spritesheet sheet = proj.getSpritesheet(i);
 				if (sheet.category == category) {
 					spritesheets.add(sheet);
 				}
 			}
-			if ( !spritesheets.equals(cacheValidator.get(proj).get(category)) ) {
+			if (!spritesheets.equals(cacheValidator.get(proj).get(category))) {
 				cache.get(proj).put(category, new SpriteChooser(proj, category));
 			}
 		}
@@ -65,20 +56,20 @@ public class SpriteChooser extends JDialog {
 		wanted.pack();
 		return wanted;
 	}
-	
+
 	private ButtonGroup group;
 //	private IconButton selectedOne = null;
 //	private JButton ok;
 //	private JButton cancel;
-	
+
 	public String selectedIconId = null;
-	
+
 	public SpriteChooser(Project proj, Category category) {
 		super(ATContentStudio.frame);
 		setTitle("Select a sprite");
 		setModalityType(ModalityType.APPLICATION_MODAL);
 		List<Spritesheet> spritesheets = new ArrayList<Spritesheet>();
-		for (int i=0; i<proj.getSpritesheetCount(); i++) {
+		for (int i = 0; i < proj.getSpritesheetCount(); i++) {
 			Spritesheet sheet = proj.getSpritesheet(i);
 			if (sheet.category == category) {
 				spritesheets.add(sheet);
@@ -88,8 +79,8 @@ public class SpriteChooser extends JDialog {
 			cacheValidator.put(proj, new LinkedHashMap<Spritesheet.Category, List<Spritesheet>>());
 		}
 		cacheValidator.get(proj).put(category, spritesheets);
-		
-		
+
+
 		JPanel pane = new JPanel();
 		pane.setLayout(new GridBagLayout());
 		GridBagConstraints c = new GridBagConstraints();
@@ -101,16 +92,19 @@ public class SpriteChooser extends JDialog {
 		c.gridheight = 1;
 		c.anchor = GridBagConstraints.NORTHWEST;
 		c.fill = GridBagConstraints.BOTH;
-		
+
 		List<Point> reservedSlots = new ArrayList<Point>();
 		Point nextFreeSlot = new Point(0, 0);
-		
+
 		int i;
-		Image img;
+		BufferedImage img;
 		group = new ButtonGroup();
 		for (Spritesheet sheet : spritesheets) {
-			i = 0;
-			while ((img = sheet.getImage(i)) != null) {
+            i = -1;
+            while ((img = sheet.getImage(++i)) != null) {
+                if (SpriteUtils.checkIsImageEmpty(img)) {
+                    continue;
+                }
 				IconButton button = new IconButton(img, sheet.id, i);
 				group.add(button);
 				if (sheet.spriteWidth == STD_WIDTH && sheet.spriteHeight == STD_HEIGHT) {
@@ -120,7 +114,7 @@ public class SpriteChooser extends JDialog {
 						c.gridx = 0;
 						c.gridy++;
 					}
-					nextFreeSlot.setLocation(c.gridx,  c.gridy);
+					nextFreeSlot.setLocation(c.gridx, c.gridy);
 				} else {
 					c.gridwidth = (sheet.spriteWidth / STD_WIDTH) + (sheet.spriteWidth % STD_WIDTH == 0 ? 0 : 1);
 					c.gridheight = (sheet.spriteHeight / STD_HEIGHT) + (sheet.spriteHeight % STD_HEIGHT == 0 ? 0 : 1);
@@ -157,15 +151,14 @@ public class SpriteChooser extends JDialog {
 						c.gridx = 0;
 						c.gridy++;
 					}
-					nextFreeSlot.setLocation(c.gridx,  c.gridy);
+					nextFreeSlot.setLocation(c.gridx, c.gridy);
 				}
-				i++;
 			}
 		}
-		
+
 //		ok = new JButton("Ok");
 //		cancel = new JButton("Cancel");
-		
+
 		c.gridx = 0;
 		boolean emptyLine = false;
 		while (!emptyLine) {
@@ -178,7 +171,7 @@ public class SpriteChooser extends JDialog {
 				}
 			}
 		}
-		
+
 //		JPanel buttonPane = new JPanel();
 //		buttonPane.add(cancel, BorderLayout.WEST);
 //		buttonPane.add(ok, BorderLayout.EAST);
@@ -190,7 +183,7 @@ public class SpriteChooser extends JDialog {
 		scroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
 		wrapper.add(scroller, BorderLayout.CENTER);
 //		wrapper.add(buttonPane, BorderLayout.SOUTH);
-		
+
 //		ok.addActionListener(new ActionListener() {
 //			@Override
 //			public void actionPerformed(ActionEvent e) {
@@ -200,7 +193,7 @@ public class SpriteChooser extends JDialog {
 //				if (listener != null) listener.iconSelected(selectedIconId);
 //			}
 //		});
-		
+
 //		cancel.addActionListener(new ActionListener() {
 //			@Override
 //			public void actionPerformed(ActionEvent e) {
@@ -210,21 +203,21 @@ public class SpriteChooser extends JDialog {
 //				if (listener != null) listener.iconSelected(null);
 //			}
 //		});
-		
+
 		setContentPane(wrapper);
 	}
-	
+
 	private SpriteChooser.SelectionListener listener = null;
-	
+
 	public void setSelectionListener(SpriteChooser.SelectionListener l) {
 		listener = l;
 	}
-	
-	
+
+
 	public class IconButton extends JToggleButton {
-		
+
 		private static final long serialVersionUID = 7559407153561178455L;
-		
+
 		public String sheetId;
 		public int spriteIndex;
 
@@ -232,12 +225,12 @@ public class SpriteChooser extends JDialog {
 			super(new ImageIcon(img));
 			this.sheetId = sheetId;
 			this.spriteIndex = spriteIndex;
-			setToolTipText(sheetId+":"+spriteIndex);
+			setToolTipText(sheetId + ":" + spriteIndex);
 			addActionListener(new ActionListener() {
 				@Override
 				public void actionPerformed(ActionEvent e) {
 					if (IconButton.this.isSelected()) {
-						selectedIconId = IconButton.this.sheetId+":"+IconButton.this.spriteIndex;
+						selectedIconId = IconButton.this.sheetId + ":" + IconButton.this.spriteIndex;
 						SpriteChooser.this.setVisible(false);
 						SpriteChooser.this.dispose();
 						if (listener != null) listener.iconSelected(selectedIconId);
@@ -246,9 +239,9 @@ public class SpriteChooser extends JDialog {
 			});
 		}
 	}
-	
+
 	public static interface SelectionListener {
 		public void iconSelected(String selected);
 	}
-	
+
 }

src/com/gpl/rpg/atcontentstudio/utils/SpriteUtils.java

@@ -0,0 +1,34 @@
+package com.gpl.rpg.atcontentstudio.utils;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.WritableRaster;
+
+public final class SpriteUtils {
+
+	/**
+	 * Check if the image is empty (transparent )
+	 *
+	 * @param img The image to check
+	 * @return true if the image is empty
+	 */
+	public static boolean checkIsImageEmpty(BufferedImage img) {
+		int width = img.getWidth(null);
+		int height = img.getHeight(null);
+		WritableRaster raster = img.getAlphaRaster();
+		if (raster == null) {
+			return false;
+		}
+		for (int x = 0; x < width; x++) {
+			for (int y = 0; y < height; y++) {
+				//get pixel alpha value
+				int alpha = raster.getSample(x, y, 0);
+				//if alpha is not 0 then the pixel is not transparent
+				if (alpha != 0) {
+					return false;
+				}
+			}
+		}
+		//no non-transparent pixel found
+		return true;
+	}
+}