Hktmx tiled map

Extensions/HKTMXTiledMap/HKTMXLayer+Experimental.h

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+/*
+ * HKTMXTiledMap
+ *
+ * cocos2d-extensions
+ * https://github.com/cocos2d/cocos2d-iphone-extensions
+ * 
+ * HKASoftware
+ * http://hkasoftware.com
+ *
+ * Copyright (c) 2011 HKASoftware
+ *
+ * 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
+ *
+ */
+
+// *****************************************************************************
+// * WARNING - The following functionallity negates the efficiencies provided  *
+// *           by the HKTMX implementation. Because of this, the use of        *
+// *           setTile:at: is not recommended.                                 *
+// *****************************************************************************
+#import "HKTMXLayer.h"
+
+
+@class CCSprite;
+
+@interface HKTMXLayer (Experimental)
+
+// returns a sprite generated from the texture used at tileCoordinate
+-(CCSprite*) tileAt:(CGPoint) tileCoordinate;
+
+// Adds a tile to the Layer as a sprite 
+// Note: This will add a performance overhead.
+-(void) setTile:(CCSprite *)tile at:(CGPoint) tileCoordinate;
+
+@end

Extensions/HKTMXTiledMap/HKTMXLayer+Experimental.m

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+/*
+ * HKTMXTiledMap
+ *
+ * cocos2d-extensions
+ * https://github.com/cocos2d/cocos2d-iphone-extensions
+ * 
+ * HKASoftware
+ * http://hkasoftware.com
+ *
+ * Copyright (c) 2011 HKASoftware
+ *
+ * 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 "HKTMXLayer+Experimental.h"
+#import "CCSprite.h"
+#import "CGPointExtension.h"
+#import "CCTMXXMLParser.h"
+#import "ccMacros.h"
+
+@implementation HKTMXLayer (Experimental)
+
+// JEB - Generates a sprite based on the tile at given coords
+-(CCSprite*) tileAt:(CGPoint)pos
+{
+	NSAssert( pos.x < layerSize_.width && pos.y < layerSize_.height && pos.x >=0 && pos.y >=0, @"TMXLayer: invalid position");
+	//NSAssert( tiles_ && atlasIndexArray_, @"TMXLayer: the tiles map has been released");
+
+	CCSprite *tile = nil;
+	uint32_t gid = [self tileGIDAt:pos];
+    uint32_t flipbits = [self tileFlipBitsAt:pos];
+
+	// if GID == 0, then no tile is present
+	if( gid ) 
+    {
+
+        CGRect rect = [tileset_ rectForGID:gid];
+        if (CC_CONTENT_SCALE_FACTOR() == 2)
+        {
+            // Retina Support
+            rect.origin.x = (rect.origin.x * 0.5);
+            rect.origin.y = (rect.origin.y * 0.5);
+            rect.size.width = (rect.size.width * 0.5);
+            rect.size.height = (rect.size.height * 0.5);
+        }
+        tile = [CCSprite spriteWithTexture:texture_ rect:rect];
+		[tile setPositionInPixels: [self positionAt:pos]];
+        tile.anchorPoint = CGPointZero;
+        [tile setOpacity:opacity_];
+
+        // Test for 90 rotation
+        if((flipbits & kTileRotated90) == kTileRotated90)
+        {
+            tile.rotation = 90;
+
+            if(flipbits & kFlippedVerticallyFlag)
+                tile.flipY = YES;
+
+        }
+        // Test for 270 rotation
+        else if ((flipbits & kTileRotated270) == kTileRotated270)
+        {
+            tile.rotation = 270;
+
+            if(flipbits & kFlippedHorizontallyFlag)
+                tile.flipX = YES;
+        }
+        else
+        {
+            // Normal flipping
+            if(flipbits & kFlippedHorizontallyFlag)
+                tile.flipX = YES;
+
+            if(flipbits & kFlippedVerticallyFlag)
+                tile.flipY = YES;
+        }       
+	}
+	return tile;
+}
+
+
+
+// JEB - Replaces a tilemap tile with a sprite tile
+-(void) setTile:(CCSprite *)tile at:(CGPoint) pos
+{
+    NSAssert( pos.x < layerSize_.width && pos.y < layerSize_.height && pos.x >=0 && pos.y >=0, @"TMXLayer: invalid position");
+    NSAssert( ((tile.contentSizeInPixels.width == mapTileSize_.width) && 
+               (tile.contentSizeInPixels.height == mapTileSize_.height)), @"TMXLayer: invalid tile");
+
+    // Remove current tile from location
+    [self removeTileAt:pos];
+
+    // Set anchor point at center to allow rotaion.
+    tile.anchorPoint = ccp(0.5f,0.5f);
+    pos.x += 0.5f;
+    pos.y -= 0.5f;
+
+    // Position in pixels for retina support
+    tile.positionInPixels = ccp((pos.x * mapTileSize_.width), (((layerSize_.height -1) * mapTileSize_.height) - pos.y * mapTileSize_.height));
+
+    // Add sprite to layer via CCNode's addChild method
+    [super addChild:tile z:zOrder_ tag:0];
+}
+
+
+#if 1
+// JEB - The following is to aid performance if using "sprite" tiles
+-(void) visit
+{
+
+    // Have any "Sprite" tiles been added to the layer
+    if(children_) 
+    {
+		ccArray *arrayData = children_->data;
+
+
+		CGAffineTransform trans = [self worldToNodeTransform];
+        CGPoint baseTile = CGPointMake(floor(trans.tx / mapTileSize_.width),
+                                       floor(trans.ty / mapTileSize_.height)); 
+        CGPoint maxTile = CGPointMake((baseTile.x + screenGridSize_.width) , 
+                                      (baseTile.y + screenGridSize_.height));
+
+        NSUInteger i = 0;
+
+        // Process each child tile
+        for( ; i < arrayData->num; i++ ) 
+        {
+			CCNode *child = arrayData->arr[i];
+
+            // sprite position always positive so can cast intead of calling floor
+            CGPoint tileCoord = CGPointMake((int)(child.positionInPixels.x / mapTileSize_.width),
+                                            (int)(child.positionInPixels    .y / mapTileSize_.width));
+
+            // Should the tile be actually drawn.
+            if ((tileCoord.x >= baseTile.x) && (tileCoord.y >= baseTile.y) &&
+                (tileCoord.x <  maxTile.x ) && (tileCoord.y <  maxTile.y ))
+            {
+                child.visible = YES;
+            }
+            else
+            {
+                child.visible = NO;
+            }
+		}
+	}	
+
+    // Ensure CCNode visit is called
+    [super visit];
+}
+#endif
+
+@end