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Optimizes sprite performance by minimizing the number of calls to action controllers

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This commit is contained in:
Viktor Lidholt 2015-07-28 10:14:16 -07:00
parent cb5a2e1751
commit d9ed5494ee
2 changed files with 36 additions and 8 deletions
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7
sky/packages/sky/example/game/lib/node.dart
View File

@ -65,6 +65,7 @@ class Node {
ActionController get actions {
if (_actions == null) {
_actions = new ActionController();
if (_spriteBox != null) _spriteBox._actionControllers = null;
}
return _actions;
}
@ -201,7 +202,7 @@ class Node {
child._spriteBox = this._spriteBox;
_childrenLastAddedOrder += 1;
child._addedOrder = _childrenLastAddedOrder;
if (_spriteBox != null) _spriteBox._eventTargets = null;
if (_spriteBox != null) _spriteBox._registerNode(child);
}
/// Removes a child from this node.
@ -212,7 +213,7 @@ class Node {
if (_children.remove(child)) {
child._parent = null;
child._spriteBox = null;
if (_spriteBox != null) _spriteBox._eventTargets = null;
if (_spriteBox != null) _spriteBox._deregisterNode(child);
}
}
@ -234,7 +235,7 @@ class Node {
}
_children = [];
_childrenNeedSorting = false;
if (_spriteBox != null) _spriteBox._eventTargets = null;
if (_spriteBox != null) _spriteBox._deregisterNode(null);
}
void _sortChildren() {

37
sky/packages/sky/example/game/lib/sprite_box.dart
View File

@ -71,6 +71,8 @@ class SpriteBox extends RenderBox {
List<Node> _eventTargets;
List<ActionController> _actionControllers;
Rect _visibleArea;
Rect get visibleArea {
@ -131,6 +133,18 @@ class SpriteBox extends RenderBox {
_callSpriteBoxPerformedLayout(_rootNode);
}
// Adding and removing nodes
_registerNode(Node node) {
_actionControllers = null;
_eventTargets = null;
}
_deregisterNode(Node node) {
_actionControllers = null;
_eventTargets = null;
}
// Event handling
void _addEventTargets(Node node, List<Node> eventTargets) {
@ -342,19 +356,32 @@ class SpriteBox extends RenderBox {
// if (_numFrames % 60 == 0)
// print("delta: $delta fps: $_frameRate");
_runActions(_rootNode, delta);
_runActions(delta);
_callUpdate(_rootNode, delta);
// Schedule next update
_scheduleTick();
// Make sure the node graph is redrawn
markNeedsPaint();
}
void _runActions(Node node, double dt) {
if (node._actions != null) {
node._actions.step(dt);
void _runActions(double dt) {
if (_actionControllers == null) {
_actionControllers = [];
_addActionControllers(_rootNode, _actionControllers);
}
for (ActionController actions in _actionControllers) {
actions.step(dt);
}
}
void _addActionControllers(Node node, List<ActionController> controllers) {
if (node._actions != null) controllers.add(node._actions);
for (int i = node.children.length - 1; i >= 0; i--) {
Node child = node.children[i];
_runActions(child, dt);
_addActionControllers(child, controllers);
}
}