Chg: #84 - add Icons.TRANSPARENT

Author: remikey

CHANGELOG.md

@@ -4,6 +4,17 @@ This file lists modifications introduced by each version.
 
 ## [Unreleased]
 
+### New icon in the jbotsim-icons module
+
+`jbotsim-icons`/`io.jbotsim.ui.icons`
+
+* A fully transparent new icon has been added [[issue 84]][issue: #84] 
+  * `jbotsim-icons`/`io/jbotsim/ui/icons/transparent.png` 
+
+  As usual, it's path can be accessed using the corresponding constant `Icons.TRANSPARENT`.
+
+[issue: #84]: https://github.com/jbotsim/JBotSim/issues/84
+
 ###  Topology class modifications
 
 **Bug fixes in Topology:**

apps/examples/src/main/java/examples/basic/icons/MainIcons.java

@@ -12,6 +12,7 @@ public static void main(String[] args) {
         deployAtCenter(topology, MovingNodeBlue.class, nbNodes);
         deployAtCenter(topology, MovingNodeFormer.class, nbNodes);
         deployAtCenter(topology, MovingNodePlus.class, nbNodes);
+        deployAtCenter(topology, MovingNodeTransparent.class, nbNodes);
         deployAtCenter(topology, MovingNodeDefault.class, nbNodes);
 
         new JViewer(topology);

apps/examples/src/main/java/examples/basic/icons/MovingNodeTransparent.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2008 - 2019, Arnaud Casteigts and the JBotSim contributors <contact@jbotsim.io>
+ *
+ *
+ * This file is part of JBotSim.
+ *
+ * JBotSim is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * JBotSim is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with JBotSim.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+package examples.basic.icons;
+
+import io.jbotsim.core.Color;
+import io.jbotsim.ui.icons.Icons;
+
+public class MovingNodeTransparent extends RandomMovingNode {
+    @Override
+    public void onStart() {
+        super.onStart();
+        setIcon(Icons.TRANSPARENT);
+        setColor(Color.BLUE);
+    }
+
+}

lib/jbotsim-icons/src/main/java/io/jbotsim/ui/icons/Icons.java

@@ -43,5 +43,6 @@ public class Icons {
     public static final String SERVER = "/io/jbotsim/ui/icons/server.png";
     public static final String SHEEP = "/io/jbotsim/ui/icons/sheep.png";
     public static final String STATION = "/io/jbotsim/ui/icons/station.png";
+    public static final String TRANSPARENT = "/io/jbotsim/ui/icons/transparent.png";
     public static final String WOLF = "/io/jbotsim/ui/icons/wolf.png";
 }