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examples/zm_cookieclicker/NumberParticle.java

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+import schule.ngb.zm.Updatable;
+import schule.ngb.zm.shapes.Text;
+
+public class NumberParticle extends Text implements Updatable {
+
+	double sinOffset, life = 0;
+
+	public NumberParticle( double x, double y, int number ) {
+		super(x,y,"+"+number);
+		sinOffset = random(0.0, PI);
+		life = 1.5;
+		setStrokeColor(255);
+		setFontsize(36);
+	}
+
+	@Override
+	public boolean isActive() {
+		return (life > 0);
+	}
+
+	@Override
+	public void update( double delta ) {
+		if( isActive() ) {
+			double deltaX = sin(sinOffset + life);
+			x += deltaX;
+			y -= 100*delta;
+
+			life -= delta;
+			setStrokeColor(strokeColor, (int) interpolate(0, 255, life / 1.5));
+		}
+	}
+
+}