jens@0: /*  This code is based on Apple's "GeekGameBoard" sample code, version 1.0.
jens@0:     http://developer.apple.com/samplecode/GeekGameBoard/
jens@0:     Copyright © 2007 Apple Inc. Copyright © 2008 Jens Alfke. All Rights Reserved.
jens@0: 
jens@0:     Redistribution and use in source and binary forms, with or without modification, are permitted
jens@0:     provided that the following conditions are met:
jens@0: 
jens@0:     * Redistributions of source code must retain the above copyright notice, this list of conditions
jens@0:       and the following disclaimer.
jens@0:     * Redistributions in binary form must reproduce the above copyright notice, this list of
jens@0:       conditions and the following disclaimer in the documentation and/or other materials provided
jens@0:       with the distribution.
jens@0: 
jens@0:     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
jens@0:     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
jens@0:     FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRI-
jens@0:     BUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
jens@0:     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
jens@0:     PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
jens@0:     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
jens@0:     THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
jens@0: */
jens@0: #import "Bit.h"
jens@0: #import "Game.h"
jens@0: #import "QuartzUtils.h"
jens@0: 
jens@0: 
jens@0: @implementation Bit
jens@0: 
jens@0: 
jens@0: - (id) copyWithZone: (NSZone*)zone
jens@0: {
jens@1:     Bit *clone = [super copyWithZone: zone];
jens@1:     clone->_owner = _owner;
jens@1:     return clone;
jens@0: }
jens@0: 
jens@0: @synthesize owner=_owner;
jens@0: 
jens@0: - (BOOL) isFriendly         {return _owner.friendly;}
jens@0: - (BOOL) isUnfriendly       {return _owner.unfriendly;}
jens@0: 
jens@0: 
jens@0: - (CGFloat) scale
jens@0: {
jens@0:     NSNumber *scale = [self valueForKeyPath: @"transform.scale"];
jens@0:     return scale.floatValue;
jens@0: }
jens@0: 
jens@0: - (void) setScale: (CGFloat)scale
jens@0: {
jens@0:     [self setValue: [NSNumber numberWithFloat: scale]
jens@0:         forKeyPath: @"transform.scale"];
jens@0: }
jens@0: 
jens@0: 
jens@0: - (int) rotation
jens@0: {
jens@0:     NSNumber *rot = [self valueForKeyPath: @"transform.rotation"];
jens@0:     return round( rot.doubleValue * 180.0 / M_PI );
jens@0: }
jens@0: 
jens@0: - (void) setRotation: (int)rotation
jens@0: {
jens@0:     [self setValue: [NSNumber numberWithDouble: rotation*M_PI/180.0]
jens@0:         forKeyPath: @"transform.rotation"];
jens@0: }
jens@0: 
jens@0: 
jens@0: - (BOOL) pickedUp
jens@0: {
jens@0:     return self.zPosition >= kPickedUpZ;
jens@0: }
jens@0: 
jens@0: - (void) setPickedUp: (BOOL)up
jens@0: {
jens@0:     if( up != self.pickedUp ) {
jens@0:         CGFloat shadow, offset, radius, opacity, z, scale;
jens@0:         if( up ) {
jens@0:             shadow = 0.8;
jens@0:             offset = 2;
jens@0:             radius = 8;
jens@0:             opacity = 0.9;
jens@0:             scale = 1.2;
jens@0:             z = kPickedUpZ;
jens@0:             _restingZ = self.zPosition;
jens@0:         } else {
jens@0:             shadow = offset = radius = 0.0;
jens@0:             opacity = 1.0;
jens@0:             scale = 1.0/1.2;
jens@0:             z = _restingZ;
jens@0:         }
jens@0:         
jens@0:         self.zPosition = z;
jens@1: #if !TARGET_OS_ASPEN
jens@0:         self.shadowOpacity = shadow;
jens@0:         self.shadowOffset = CGSizeMake(offset,-offset);
jens@0:         self.shadowRadius = radius;
jens@1: #endif
jens@0:         self.opacity = opacity;
jens@0:         self.scale *= scale;
jens@0:     }
jens@0: }
jens@0: 
jens@0: 
jens@0: - (BOOL)containsPoint:(CGPoint)p
jens@0: {
jens@0:     // Make picked-up pieces invisible to hit-testing.
jens@0:     // Otherwise, while dragging a Bit, hit-testing the cursor position would always return
jens@0:     // that Bit, since it's directly under the cursor...
jens@0:     if( self.pickedUp )
jens@0:         return NO;
jens@0:     else
jens@0:         return [super containsPoint: p];
jens@0: }
jens@0: 
jens@0: 
jens@0: -(id<BitHolder>) holder
jens@0: {
jens@0:     // Look for my nearest ancestor that's a BitHolder:
jens@0:     for( CALayer *layer=self.superlayer; layer; layer=layer.superlayer ) {
jens@0:         if( [layer conformsToProtocol: @protocol(BitHolder)] )
jens@0:             return (id<BitHolder>)layer;
jens@0:         else if( [layer isKindOfClass: [Bit class]] )
jens@0:             return nil;
jens@0:     }
jens@0:     return nil;
jens@0: }
jens@0: 
jens@0: 
jens@0: - (void) destroy
jens@0: {
jens@0:     // "Pop" the Bit by expanding it 5x as it fades away:
jens@0:     self.scale = 5;
jens@0:     self.opacity = 0.0;
jens@0:     // Removing the view from its superlayer right now would cancel the animations.
jens@0:     // Instead, defer the removal until sometime shortly after the animations finish:
jens@0:     [self performSelector: @selector(removeFromSuperlayer) withObject: nil afterDelay: 1.0];
jens@0: }
jens@0: 
jens@0: 
jens@0: @end