/libs/cocos2d/CCTMXTiledMap.m
http://github.com/kstenerud/ObjectAL-for-iPhone · Objective C · 201 lines · 120 code · 40 blank · 41 comment · 18 complexity · 9a5c69d4ef710f743fd82710b25bd8b7 MD5 · raw file
- /*
- * cocos2d for iPhone: http://www.cocos2d-iphone.org
- *
- * Copyright (c) 2009-2010 Ricardo Quesada
- *
- * 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.
- *
- *
- * TMX Tiled Map support:
- * http://www.mapeditor.org
- *
- */
- #import "CCTMXTiledMap.h"
- #import "CCTMXXMLParser.h"
- #import "CCTMXLayer.h"
- #import "CCTMXObjectGroup.h"
- #import "CCSprite.h"
- #import "CCSpriteSheet.h"
- #import "CCTextureCache.h"
- #import "Support/CGPointExtension.h"
- #pragma mark -
- #pragma mark CCTMXTiledMap
- @interface CCTMXTiledMap (Private)
- -(id) parseLayer:(CCTMXLayerInfo*)layer map:(CCTMXMapInfo*)mapInfo;
- -(CCTMXTilesetInfo*) tilesetForLayer:(CCTMXLayerInfo*)layerInfo map:(CCTMXMapInfo*)mapInfo;
- @end
- @implementation CCTMXTiledMap
- @synthesize mapSize=mapSize_;
- @synthesize tileSize=tileSize_;
- @synthesize mapOrientation=mapOrientation_;
- @synthesize objectGroups=objectGroups_;
- @synthesize properties=properties_;
- +(id) tiledMapWithTMXFile:(NSString*)tmxFile
- {
- return [[[self alloc] initWithTMXFile:tmxFile] autorelease];
- }
- -(id) initWithTMXFile:(NSString*)tmxFile
- {
- NSAssert(tmxFile != nil, @"TMXTiledMap: tmx file should not bi nil");
- if ((self=[super init])) {
-
- [self setContentSize:CGSizeZero];
- CCTMXMapInfo *mapInfo = [CCTMXMapInfo formatWithTMXFile:tmxFile];
-
- NSAssert( [mapInfo.tilesets count] != 0, @"TMXTiledMap: Map not found. Please check the filename.");
-
- mapSize_ = mapInfo.mapSize;
- tileSize_ = mapInfo.tileSize;
- mapOrientation_ = mapInfo.orientation;
- objectGroups_ = [mapInfo.objectGroups retain];
- properties_ = [mapInfo.properties retain];
- tileProperties_ = [mapInfo.tileProperties retain];
-
- int idx=0;
- for( CCTMXLayerInfo *layerInfo in mapInfo.layers ) {
-
- if( layerInfo.visible ) {
- id child = [self parseLayer:layerInfo map:mapInfo];
- [self addChild:child z:idx tag:idx];
-
- // update content size with the max size
- CGSize childSize = [child contentSize];
- CGSize currentSize = [self contentSize];
- currentSize.width = MAX( currentSize.width, childSize.width );
- currentSize.height = MAX( currentSize.height, childSize.height );
- [self setContentSize:currentSize];
-
- idx++;
- }
- }
- }
- return self;
- }
- -(void) dealloc
- {
- [objectGroups_ release];
- [properties_ release];
- [tileProperties_ release];
- [super dealloc];
- }
- // private
- -(id) parseLayer:(CCTMXLayerInfo*)layerInfo map:(CCTMXMapInfo*)mapInfo
- {
- CCTMXTilesetInfo *tileset = [self tilesetForLayer:layerInfo map:mapInfo];
- CCTMXLayer *layer = [CCTMXLayer layerWithTilesetInfo:tileset layerInfo:layerInfo mapInfo:mapInfo];
- // tell the layerinfo to release the ownership of the tiles map.
- layerInfo.ownTiles = NO;
- [layer setupTiles];
-
- return layer;
- }
- -(CCTMXTilesetInfo*) tilesetForLayer:(CCTMXLayerInfo*)layerInfo map:(CCTMXMapInfo*)mapInfo
- {
- CFByteOrder o = CFByteOrderGetCurrent();
-
- CGSize size = layerInfo.layerSize;
- id iter = [mapInfo.tilesets reverseObjectEnumerator];
- for( CCTMXTilesetInfo* tileset in iter) {
- for( unsigned int y=0; y < size.height; y++ ) {
- for( unsigned int x=0; x < size.width; x++ ) {
-
- unsigned int pos = x + size.width * y;
- unsigned int gid = layerInfo.tiles[ pos ];
-
- // gid are stored in little endian.
- // if host is big endian, then swap
- if( o == CFByteOrderBigEndian )
- gid = CFSwapInt32( gid );
-
- // XXX: gid == 0 --> empty tile
- if( gid != 0 ) {
-
- // Optimization: quick return
- // if the layer is invalid (more than 1 tileset per layer) an assert will be thrown later
- if( gid >= tileset.firstGid )
- return tileset;
- }
- }
- }
- }
-
- // If all the tiles are 0, return empty tileset
- CCLOG(@"cocos2d: Warning: TMX Layer '%@' has no tiles", layerInfo.name);
- return nil;
- }
- // public
- -(CCTMXLayer*) layerNamed:(NSString *)layerName
- {
- for( CCTMXLayer *layer in children_ ) {
- if([layer isKindOfClass:[CCTMXLayer class]]){
- if( [layer.layerName isEqual:layerName] )
- return layer;
- }
- }
-
- // layer not found
- return nil;
- }
- -(CCTMXObjectGroup*) objectGroupNamed:(NSString *)groupName
- {
- for( CCTMXObjectGroup *objectGroup in objectGroups_ ) {
- if( [objectGroup.groupName isEqual:groupName] )
- return objectGroup;
- }
-
- // objectGroup not found
- return nil;
- }
- // XXX deprecated
- -(CCTMXObjectGroup*) groupNamed:(NSString *)groupName
- {
- return [self objectGroupNamed:groupName];
- }
- -(id) propertyNamed:(NSString *)propertyName
- {
- return [properties_ valueForKey:propertyName];
- }
- -(NSDictionary*)propertiesForGID:(unsigned int)GID{
- return [tileProperties_ objectForKey:[NSNumber numberWithInt:GID]];
- }
- @end