v1.4.0: added a setting to adjust camera follow intensity

SPD-classes/src/main/java/com/watabou/noosa/Camera.java

@@ -165,22 +165,47 @@ public class Camera extends Gizmo {
 	//camera moves at a speed such that it will pan to its current target in 1/intensity seconds
 	//keep in mind though that this speed is constantly decreasing, so actual pan time is higher
 	float panIntensity = 0f;
+
+	//what percentage of the screen to ignore when follow panning.
+	// 0% means always keep in the center, 50% would mean pan until target is within center 50% of screen
+	float followDeadzone = 0f;
 	
 	@Override
 	public void update() {
 		super.update();
-		
+
+		float deadX = 0;
+		float deadY = 0;
 		if (followTarget != null){
 			panTarget = followTarget.center().offset(centerOffset);
+			deadX = width * followDeadzone /2f;
+			deadY = height * followDeadzone /2f;
 		}
 		
 		if (panIntensity > 0f){
+
 			PointF panMove = new PointF();
 			panMove.x = panTarget.x - (scroll.x + width/2f);
 			panMove.y = panTarget.y - (scroll.y + height/2f);
-			
+
+			if (panMove.x > deadX){
+				panMove.x -= deadX;
+			} else if (panMove.x < -deadX){
+				panMove.x += deadX;
+			} else {
+				panMove.x = 0;
+			}
+
+			if (panMove.y > deadY){
+				panMove.y -= deadY;
+			} else if (panMove.y < -deadY){
+				panMove.y += deadY;
+			} else {
+				panMove.y = 0;
+			}
+
 			panMove.scale(Math.min(1f, Game.elapsed * panIntensity));
-			
+
 			scroll.offset(panMove);
 		}
 		
@@ -212,8 +237,10 @@ public class Camera extends Gizmo {
 	public void setCenterOffset( float x, float y ){
 		scroll.x    += x - centerOffset.x;
 		scroll.y    += y - centerOffset.y;
-		panTarget.x += x - centerOffset.x;
-		panTarget.y += y - centerOffset.y;
+		if (panTarget != null) {
+			panTarget.x += x - centerOffset.x;
+			panTarget.y += y - centerOffset.y;
+		}
 		centerOffset.set(x, y);
 	}
 	
@@ -237,6 +264,10 @@ public class Camera extends Gizmo {
 		followTarget = target;
 		panIntensity = intensity;
 	}
+
+	public void setFollowDeadzone( float deadzone ){
+		followDeadzone = deadzone;
+	}
 	
 	public PointF screenToCamera( int x, int y ) {
 		return new PointF(