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+/*
+ * cocos2d for iPhone: http://www.cocos2d-iphone.org
+ *
+ * Copyright (c) 2008, 2009 Jason Booth
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ *
+ *********************************************************
+ *
+ * Motion Streak manages a Ribbon based on it's motion in absolute space.
+ * You construct it with a fadeTime, minimum segment size, texture path, texture
+ * length and color. The fadeTime controls how long it takes each vertex in
+ * the streak to fade out, the minimum segment size it how many pixels the
+ * streak will move before adding a new ribbon segement, and the texture
+ * length is the how many pixels the texture is stretched across. The texture
+ * is vertically aligned along the streak segemnts. 
+ */
+
+#import "CCMotionStreak.h"
+#import "Support/CGPointExtension.h"
+
+@implementation CCMotionStreak
+
+@synthesize ribbon = ribbon_;
+
++(id)streakWithFade:(float)fade minSeg:(float)seg image:(NSString*)path width:(float)width length:(float)length color:(ccColor4B)color
+{
+        return [[[self alloc] initWithFade:(float)fade minSeg:seg image:path width:width length:length color:color] autorelease];
+}
+
+-(id)initWithFade:(float)fade minSeg:(float)seg image:(NSString*)path width:(float)width length:(float)length color:(ccColor4B)color
+{
+        if( (self=[super init])) {
+                segThreshold_ = seg;
+                width_ = width;
+                lastLocation_ = CGPointZero;
+                ribbon_ = [CCRibbon ribbonWithWidth:width_ image:path length:length color:color fade:fade];
+                [self addChild:ribbon_];
+
+                // update ribbon position. Use schedule:interval and not scheduleUpdated. issue #1075
+                [self schedule:@selector(update:) interval:0];
+        }
+        return self;
+}
+
+-(void)update:(ccTime)delta
+{
+        CGPoint location = [self convertToWorldSpace:CGPointZero];
+        [ribbon_ setPosition:ccp(-1*location.x, -1*location.y)];
+        float len = ccpLength(ccpSub(lastLocation_, location));
+        if (len > segThreshold_)
+        {
+                [ribbon_ addPointAt:location width:width_];
+                lastLocation_ = location;
+        }
+        [ribbon_ update:delta];
+}
+
+
+-(void)dealloc
+{
+        [super dealloc];
+}
+
+#pragma mark MotionStreak - CocosNodeTexture protocol
+
+-(void) setTexture:(CCTexture2D*) texture
+{
+        [ribbon_ setTexture: texture];
+}
+
+-(CCTexture2D*) texture
+{
+        return [ribbon_ texture];
+}
+
+-(ccBlendFunc) blendFunc
+{
+        return [ribbon_ blendFunc];
+}
+
+-(void) setBlendFunc:(ccBlendFunc)blendFunc
+{
+        [ribbon_ setBlendFunc:blendFunc];
+}
+
+@end