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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
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