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//
// TextureAtlas.m
// Leveleditor
//
// Created by Michael Markowski on 30.11.09.
// Copyright (c) 2010 Artifacts - Fine Software Development
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.


#import "TextureAtlas.h"
#import "Texture.h"

@implementation TextureAtlas


- (NSMutableDictionary*)textures {
if (_cachedTextures==nil || [_cachedTextures count] == 0) {
_cachedTextures = [[NSMutableDictionary dictionary] retain];
NSImage *sheet = self.spriteSheetImage;
NSDictionary *coords = self.coordinates;
NSDictionary *framesDict = [coords objectForKey:@"frames"];
for(NSString *frameDictKey in framesDict) {
NSDictionary *frameDict = [framesDict objectForKey:frameDictKey];
CGFloat x = [[frameDict objectForKey:@"x"] floatValue];
CGFloat y = [[frameDict objectForKey:@"y"] floatValue];
CGFloat w = [[frameDict objectForKey:@"width"] floatValue];
CGFloat h = [[frameDict objectForKey:@"height"] floatValue];
y = sheet.size.height - y - h;
NSRect frame = NSMakeRect(x, y, w, h);
Texture *s = [Texture new];
s.key = frameDictKey;
s.frame = frame;

s.img = [[[NSImage alloc] initWithSize:s.frame.size] autorelease];
[s.img lockFocus];
[sheet drawInRect:NSMakeRect(0, 0, s.frame.size.width, s.frame.size.height) fromRect:s.frame operation:NSCompositeSourceOver fraction:1.0];
[s.img unlockFocus];

[_cachedTextures setObject:s forKey:frameDictKey];
[s release];
}
}
return _cachedTextures;
}

@end

@implementation TextureAtlas (CoreDataGeneratedPrimitiveAccessors)

- (void)setCoordinates:(id)value
{
    [self willChangeValueForKey:@"coordinates"];
    [self setPrimitiveCoordinates:value];
    [self didChangeValueForKey:@"coordinates"];
_cachedTextures = nil;
}

- (void)setName:(NSString *)value
{
    [self willChangeValueForKey:@"name"];
    [self setPrimitiveName:value];
    [self didChangeValueForKey:@"name"];
_cachedTextures = nil;
}

- (void)setSpriteSheetImage:(id)value
{
    [self willChangeValueForKey:@"spriteSheetImage"];
    [self setPrimitiveSpriteSheetImage:value];
    [self didChangeValueForKey:@"spriteSheetImage"];
_cachedTextures = nil;
}

@end

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