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/* This code is based on Apple's "GeekGameBoard" sample code, version 1.0.
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http://developer.apple.com/samplecode/GeekGameBoard/
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Copyright © 2007 Apple Inc. Copyright © 2008 Jens Alfke. All Rights Reserved.
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Redistribution and use in source and binary forms, with or without modification, are permitted
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provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this list of conditions
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and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice, this list of
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conditions and the following disclaimer in the documentation and/or other materials provided
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with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRI-
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BUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#import "Bit.h"
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#import "Game.h"
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#import "QuartzUtils.h"
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#ifdef TARGET_OS_IPHONE
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#define kPickedUpScale 2.0 // more magnification, so piece shows up underneath fingertip
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#define kPickedUpOpacity 0.6
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#else
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#define kPickedUpScale 1.2
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#define kPickedUpOpacity 0.9
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#endif
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@implementation Bit
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- (id) copyWithZone: (NSZone*)zone
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{
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Bit *clone = [super copyWithZone: zone];
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clone->_owner = _owner;
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return clone;
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}
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- (void) dealloc
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{
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[super dealloc];
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}
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@synthesize owner=_owner;
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- (BOOL) isFriendly {return _owner.friendly;}
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- (BOOL) isUnfriendly {return _owner.unfriendly;}
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/*
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- (NSString*) identifier
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{
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if( _identifier )
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return _identifier;
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// Defaults to just identifying the owner:
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return [NSString stringWithFormat: @"p%i", _owner.index+1];
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}
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*/
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- (CGFloat) scale
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{
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NSNumber *scale = [self valueForKeyPath: @"transform.scale"];
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return scale.floatValue;
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}
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- (void) setScale: (CGFloat)scale
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{
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[self setValue: [NSNumber numberWithFloat: scale]
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forKeyPath: @"transform.scale"];
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}
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- (int) rotation
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{
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NSNumber *rot = [self valueForKeyPath: @"transform.rotation"];
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return round( rot.doubleValue * 180.0 / M_PI );
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}
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- (void) setRotation: (int)rotation
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{
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[self setValue: [NSNumber numberWithDouble: rotation*M_PI/180.0]
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forKeyPath: @"transform.rotation"];
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}
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- (BOOL) pickedUp
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{
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return _pickedUp;
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}
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- (void) setPickedUp: (BOOL)up
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{
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if( up != _pickedUp ) {
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CGFloat shadow, offset, radius, opacity, z, scale;
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if( up ) {
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shadow = 0.8;
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offset = 2;
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radius = 8;
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opacity = kPickedUpOpacity;
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scale = kPickedUpScale;
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z = kPickedUpZ;
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_restingZ = self.zPosition;
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} else {
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shadow = offset = radius = 0.0;
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opacity = 1.0;
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scale = 1.0/kPickedUpScale;
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z = _restingZ;
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}
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//self.zPosition = z;
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#if !TARGET_OS_IPHONE
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self.shadowOpacity = shadow;
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self.shadowOffset = CGSizeMake(offset,-offset);
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self.shadowRadius = radius;
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#endif
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self.opacity = opacity;
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self.scale *= scale;
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_pickedUp = up;
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}
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}
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- (BOOL)containsPoint:(CGPoint)p
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{
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// Make picked-up pieces invisible to hit-testing.
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// Otherwise, while dragging a Bit, hit-testing the cursor position would always return
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// that Bit, since it's directly under the cursor...
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if( self.pickedUp )
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return NO;
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else
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return [super containsPoint: p];
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}
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-(id<BitHolder>) holder
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{
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// Look for my nearest ancestor that's a BitHolder:
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for( CALayer *layer=self.superlayer; layer; layer=layer.superlayer ) {
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if( [layer conformsToProtocol: @protocol(BitHolder)] )
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return (id<BitHolder>)layer;
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else if( [layer isKindOfClass: [Bit class]] )
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return nil;
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}
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return nil;
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}
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- (void) destroy
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{
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// "Pop" the Bit by expanding it 5x as it fades away:
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self.scale = 5;
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self.opacity = 0.0;
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// Removing the view from its superlayer right now would cancel the animations.
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// Instead, defer the removal until sometime shortly after the animations finish:
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[self performSelector: @selector(removeFromSuperlayer) withObject: nil afterDelay: 1.0];
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}
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@end
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