Stop animating when not showing.

We were eating too many jelly beans even when the screen was
off.

Also clean up touch offsets, rotation on fling, and main
platlogo asset.

Bug: 6541052
Change-Id: I34e49b8b7a95ce6daab929885130426a5ae58dc4

2 files changed, 36 insertions, 51 deletions

diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index c9957f5..637c403 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -55,7 +55,7 @@
         android:allowBackup="false"
         android:hardwareAccelerated="true"
         android:label="@string/app_label"
-        android:icon="@drawable/ic_launcher_settings">
+        android:icon="@*android:drawable/platlogo">
 
         <!-- Broadcast receiver that gets the broadcast at boot time and starts
              up everything else.
diff --git a/packages/SystemUI/src/com/android/systemui/BeanBag.java b/packages/SystemUI/src/com/android/systemui/BeanBag.java
index e4f00d6..616d72f 100644
--- a/packages/SystemUI/src/com/android/systemui/BeanBag.java
+++ b/packages/SystemUI/src/com/android/systemui/BeanBag.java
@@ -81,6 +81,10 @@ public class BeanBag extends Activity {
             return (float) Math.sqrt(x*x+y*y);
         }
 
+        static float clamp(float x, float a, float b) {
+            return ((x<a)?a:((x>b)?b:x));
+        }
+
         static float dot(float x1, float y1, float x2, float y2) {
             return x1*x2+y1+y2;
         }
@@ -149,6 +153,7 @@ public class BeanBag extends Activity {
             public boolean grabbed;
             public float grabx, graby;
             public long grabtime;
+            private float grabx_offset, graby_offset;
 
             public Bean(Context context, AttributeSet as) {
                 super(context, as);
@@ -236,17 +241,20 @@ public class BeanBag extends Activity {
                 switch (e.getAction()) {
                     case MotionEvent.ACTION_DOWN:
                         grabbed = true;
+                        grabx_offset = e.getRawX() - x;
+                        graby_offset = e.getRawY() - y;
                         va = 0;
                         // fall
                     case MotionEvent.ACTION_MOVE:
-                        grabx = e.getRawX();
-                        graby = e.getRawY();
+                        grabx = e.getRawX() - grabx_offset;
+                        graby = e.getRawY() - graby_offset;
                         grabtime = e.getEventTime();
                         break;
                     case MotionEvent.ACTION_CANCEL:
                     case MotionEvent.ACTION_UP:
                         grabbed = false;
-                        va = randfrange(-5,5);
+                        float a = randsign() * clamp(mag(vx, vy) * 0.33f, 0, 1080f);
+                        va = randfrange(a*0.5f, a);
                         break;
                 }
                 return true;
@@ -308,47 +316,6 @@ public class BeanBag extends Activity {
                             if (!(v2 instanceof Bean)) continue;
                             Bean nv2 = (Bean) v2;
                             final float overlap = nv.overlap(nv2);
-                            if (false && overlap < 0) {
-                                // angle pointing from nv2 to nv
-                                final float dx = nv.x - nv2.x;
-                                final float dy = nv.y - nv2.y;
-                                final float ang = (float) Math.atan2(dx, dy);
-
-                                if (false) {
-                                nv.vx -= Math.cos(ang) * overlap * 0.5f;
-                                nv.vy -= Math.sin(ang) * overlap * 0.5f;
-                                nv2.vx += Math.cos(ang) * overlap * 0.5f;
-                                nv2.vy += Math.sin(ang) * overlap * 0.5f;
-                                }
-
-
-                                // first, move them apart
-                                nv.x -= Math.cos(ang) * overlap/2;
-                                nv.y -= Math.sin(ang) * overlap/2;
-                                nv2.x += Math.cos(ang) * overlap/2;
-                                nv2.y += Math.sin(ang) * overlap/2;
-
-                                // next, figure out velocities
-                                final float sap = 0f; // randfrange(0,0.25f);
-
-                                final float mag1 = mag(nv.vx, nv.vy) * (1f-sap);
-                                final float mag2 = mag(nv2.vx, nv2.vy) * (1f-sap);
-
-
-                                // hacky way to transfer "momentum"
-                                nv.vx = mag2 * (float)Math.cos(ang);
-                                nv.vy = mag2 * (float)Math.sin(ang);
-                                nv2.vx = -mag1 * (float)Math.cos(ang);
-                                nv2.vy = -mag1 * (float)Math.sin(ang);
-
-                                final float totalva = nv.va + nv2.va;
-                                final float frac = randfrange(0.25f,0.75f);
-                                nv.va = totalva * frac;
-                                nv2.va = totalva * (1f-frac);
-//                                nv.va += randfrange(-20,20);
-//                                nv2.va += randfrange(-20,20);
-
-                            }
                         }
 
                         nv.setRotation(nv.a);
@@ -375,17 +342,28 @@ public class BeanBag extends Activity {
             boardWidth = w;
             boardHeight = h;
 //            android.util.Log.d("Nyandroid", "resized: " + w + "x" + h);
-            post(new Runnable() { public void run() {
-                reset();
+        }
+
+        public void startAnimation() {
+            stopAnimation();
+            if (mAnim == null) {
+                post(new Runnable() { public void run() {
+                    reset();
+                    startAnimation();
+                } });
+            } else {
                 mAnim.start();
-            } });
+            }
         }
 
+        public void stopAnimation() {
+            if (mAnim != null) mAnim.cancel();
+        }
 
         @Override
         protected void onDetachedFromWindow() {
             super.onDetachedFromWindow();
-            mAnim.cancel();
+            stopAnimation();
         }
 
         @Override
@@ -428,12 +406,19 @@ public class BeanBag extends Activity {
                   WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
                 | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
                 );
+        mBoard = new Board(this, null);
+        setContentView(mBoard);
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        mBoard.stopAnimation();
     }
 
     @Override
     public void onResume() {
         super.onResume();
-        mBoard = new Board(this, null);
-        setContentView(mBoard);
+        mBoard.startAnimation();
     }
 }