redstone change listner

src/kernel/peripherals/Redstone.hx

@@ -2,22 +2,45 @@ package kernel.peripherals;
 
 import util.Color;
 
+using tink.CoreApi;
+
 typedef BundleMask = Color;
 
 class Redstone implements IPeripheral {
 
+	public final onChange:Signal<Noise>;
+
+	private final onChangeTrigger:SignalTrigger<Noise> = Signal.trigger();
+
 	private final addr:Side;
 
+	private var analogInputState:Int;
+	private var bundleInputState:BundleMask;
+
 	@:allow(kernel.peripherals)
 	private function new(side: Side) {
 		this.addr = side;
+		this.onChange = this.onChangeTrigger.asSignal();
+
+		KernelEvents.instance.onRedstone.handle(()->{
+			if ((this.getAnalogInput() != this.analogInputState) || (this.bundleInputState == this.getBundledInput())){
+				this.onChangeTrigger.trigger(null);
+			}
+		});
 	}
 
 	public function getAddr():String {
 		return this.addr;
+		updateState();
+	}
+
+	private function updateState() {
+		this.analogInputState = cc.Redstone.getAnalogInput(this.addr);
+		this.bundleInputState = cc.Redstone.getBundledInput(this.addr);
 	}
 
 	public inline function setOutput(on:Bool):Void {
+		this.analogInputState = 15;
 		cc.Redstone.setOutput(this.addr,on);
 	}
 
@@ -30,6 +53,7 @@ class Redstone implements IPeripheral {
 	}
 
 	public inline function setAnalogOutput(strength:Int): Void {
+		this.analogInputState = strength;
 		cc.Redstone.setAnalogOutput(this.addr,strength);
 	}
 
@@ -42,6 +66,7 @@ class Redstone implements IPeripheral {
 	}
 
 	public inline function setBundledOutput(output: BundleMask) {
+		this.bundleInputState = output;
 		cc.Redstone.setBundledOutput(this.addr,output);
 	}