From 9cd57b731ab1c666d4a1cb725538fdc137763d12 Mon Sep 17 00:00:00 2001
From: Starla Insigna <starla4444@gmail.com>
Date: Sat, 30 Jul 2011 11:19:14 -0400
Subject: Initial commit (version 0.2.1)

---
 libs/cocos2d/CCMotionStreak.m | 104 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100755 libs/cocos2d/CCMotionStreak.m

(limited to 'libs/cocos2d/CCMotionStreak.m')

diff --git a/libs/cocos2d/CCMotionStreak.m b/libs/cocos2d/CCMotionStreak.m
new file mode 100755
index 0000000..42737b9
--- /dev/null
+++ b/libs/cocos2d/CCMotionStreak.m
@@ -0,0 +1,104 @@
+/*
+ * 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
-- 
cgit 1.4.1