replace streams

app/src/main/java/org/agp8x/android/games/fillgrid/GroupGridPainter.java

@@ -27,7 +27,9 @@ public class GroupGridPainter<C extends GroupCell> implements GridPainter<C> {
 
     @Override
     public void draw(Canvas canvas, Map<Offset, C> cells, Pair<Integer, Integer> realDimensions) {
-        cells.forEach((offset, groupCell) -> drawCell(canvas, offset, groupCell, realDimensions));
+        for (Map.Entry<Offset, C> entry : cells.entrySet()) {
+            drawCell(canvas, entry.getKey(),entry.getValue(), realDimensions);
+        }
     }
 
     private void drawCell(Canvas canvas, Offset offset, C cell, Pair<Integer, Integer> realDimensions) {

app/src/main/java/org/agp8x/android/games/fillgrid/SpawnPainterGroup.java

@@ -48,7 +48,9 @@ public class SpawnPainterGroup<G extends GridObject<C>, C extends GroupCell> imp
 
     @Override
     public void drawDragging(Canvas canvas, Pair<Float, Float> xy, G object) {
-        object.getObjects().forEach((offset, c) -> drawCellDragging(canvas, xy, offset, c));
+        for (Map.Entry<Offset, C> entry : object.getObjects().entrySet()) {
+            drawCellDragging(canvas, xy, entry.getKey(), entry.getValue());
+        }
     }
 
     private Pair<Integer, Integer> getPosition(Offset offset, G obj, int count, Area spawnSize) {
@@ -61,7 +63,9 @@ public class SpawnPainterGroup<G extends GridObject<C>, C extends GroupCell> imp
 
     private void drawBlock(Canvas canvas, G groupCellGridBlock) {
         Pair<Integer, Integer> origin = positions.get(groupCellGridBlock);
-        groupCellGridBlock.getObjects().forEach((offset1, groupCell) -> drawCell(canvas, origin, offset1, groupCell));
+        for (Map.Entry<Offset, C> entry : groupCellGridBlock.getObjects().entrySet()) {
+            drawCell(canvas, origin, entry.getKey(), entry.getValue());
+        }
     }
 
     private void drawCell(Canvas canvas, Pair<Integer, Integer> origin, Offset offset1, C cell) {

app/src/main/java/org/agp8x/android/games/fillgrid/data/GridBoard.java

@@ -34,7 +34,7 @@ public class GridBoard<G extends GridObject<C>, C extends Cell> implements Grid<
     @Override
     public boolean drop(Offset xy, G object) {
         if (fits(xy, object)) {
-            object.getObjects().forEach((offset, cell) -> contents.put(Offset.add(xy, offset), cell));
+            contents.putAll(object.getObjects());
             return true;
         }
         return false;
@@ -65,10 +65,15 @@ public class GridBoard<G extends GridObject<C>, C extends Cell> implements Grid<
      */
     public int collapseFilledLines() {
         List<Offset> deletionQueue = findFullLines();
-        deletionQueue.stream().map(contents::get).distinct().forEach(Cell::markCollapsed);
+        for (Offset offset : deletionQueue) {
+            contents.get(offset).markCollapsed();
+        }
         int count = deletionQueue.size();
         System.out.println("DELETION QUEUE ("+count+"): "+deletionQueue);
-        deletionQueue.forEach(contents::remove);
+        //FIXME: move to removeCollapsed()
+        for (Offset offset : deletionQueue) {
+            contents.remove(offset);
+        }
         deletionQueue.clear();
         return count;
     }
@@ -126,11 +131,18 @@ public class GridBoard<G extends GridObject<C>, C extends Cell> implements Grid<
      */
     private boolean fits(Offset xy, G newObject) {
         Map<Offset, C> objects = newObject.getObjects();
-        return (objects.isEmpty()) ||  // object has no cells => fits
+        boolean fits = objects.isEmpty();
-                (objects.keySet().stream().
+        if (!fits){
-                        filter(Objects::nonNull).   // null cells are ignored
+            for (Offset offset : objects.keySet()) {
-                        filter(offset -> !isSettable(xy, offset)). //clash with existing key
+                if (offset != null) {
-                        count() == 0);
+                    if (!isSettable(xy,offset)){
+                        return false;
+                    }
+                }
+            }
+            fits=true;
+        }
+        return fits;
     }
 
     /**