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AndroidListener.pde is a Routine that listens at a defined port for UDP packages.
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| //package info.disorient.acw; | ||
| //import processing.core.PApplet; | ||
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| import hypermedia.net.UDP; | ||
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| import java.util.ConcurrentModificationException; | ||
| import java.util.HashMap; | ||
| import java.util.Iterator; | ||
| import java.util.Map; | ||
| import java.util.Map.Entry; | ||
| import java.util.Set; | ||
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| public class AndroidListener extends Routine { | ||
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| private UDP udpListener; | ||
| private int udp_port; | ||
| private Map<Integer, Integer> map; | ||
| private boolean isDrawing; | ||
| private Iterator it; | ||
| private Set s; | ||
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| public AndroidListener(int port) { | ||
| // TODO Auto-generated constructor stub | ||
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| udp_port = port; | ||
| } | ||
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| public void setup(PApplet p) { | ||
| this.parent = p; | ||
| udpListener = new UDP(this, udp_port); | ||
| udpListener.listen(true); | ||
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| map = new HashMap<Integer, Integer>(); | ||
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| parent.background(0); | ||
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| // adding or set elements in Map by put method key and value pair | ||
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| } | ||
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| public void draw() { | ||
| // Get Map in Set interface to get key and value | ||
| s = map.entrySet(); | ||
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| // Move next key and value of Map by iterator | ||
| it = s.iterator(); | ||
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| if (it.hasNext()) { | ||
| isDrawing = true; | ||
| parent.loadPixels(); | ||
| parent.background(0); | ||
| } | ||
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| boolean doLoop = it.hasNext(); | ||
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| while (doLoop) { | ||
| // key=value separator this by Map.Entry to get key and value | ||
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| try { | ||
| Map.Entry m = (Map.Entry) it.next(); | ||
| int key = (Integer) m.getKey(); | ||
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| // getValue is used to get value of key in Map | ||
| int value = (Integer) m.getValue(); | ||
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| value--; | ||
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| if (value <= 0) { | ||
| // remove value from map. | ||
| it.remove(); | ||
| } else | ||
| m.setValue(value); | ||
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| setPixel(key, value); | ||
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| doLoop = it.hasNext(); | ||
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| } catch (ConcurrentModificationException e) { | ||
| // TODO: handle exception | ||
| System.out.println(e.toString()); | ||
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| clearScreen(); | ||
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| doLoop = false; | ||
| } | ||
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| // getKey is used to get key of Map | ||
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| // System.out.println("Key :"+key+" Value :"+value); | ||
| } | ||
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| if (isDrawing) | ||
| parent.updatePixels(); | ||
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| isDrawing = false; | ||
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| } | ||
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| private void clearScreen() { | ||
| map.clear(); | ||
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| for (int i = 0; i < parent.pixels.length; i++) { | ||
| setPixel(i,0); | ||
| } | ||
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| parent.updatePixels(); | ||
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| } | ||
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| void setPixel(int i, int value) { | ||
| int colorInt = value; | ||
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| // parent.println("setPixels: " + key + ":" + value); | ||
| i = Math.max(0, i); | ||
| i = Math.min(i, parent.pixels.length-1); | ||
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| parent.pixels[i] = value; | ||
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| } | ||
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| private int getPixel(String s) { | ||
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| String coords[] = s.trim().split(","); | ||
| int x = Integer.parseInt(coords[0].trim()); | ||
| int y = Integer.parseInt(coords[1].trim()); | ||
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| int i = y * 16 + x; | ||
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| return i; | ||
| } | ||
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| void receive(byte[] coord, String ip, int port) { | ||
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| if (isDrawing) { | ||
| return; | ||
| } | ||
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| String s = new String(coord); | ||
| parent.println(" " + s + " from " + ip + ". " + map.containsKey(s)); | ||
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| int i = getPixel(s); | ||
| map.put(i, 255); | ||
| setPixel(i, 255); | ||
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| // if (map.containsKey(s)) { | ||
| // // boost objects brightness | ||
| // | ||
| // } else { | ||
| // // add new object | ||
| // | ||
| // parent.println(" " + s + ":" + coord + " from " + ip + ". " + | ||
| // map.containsKey(s)); | ||
| // | ||
| // } | ||
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| } | ||
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| } | ||
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