cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   artakus
   Member

   i use cocos2d Tile from this website - http://kwigbo.com/wp/2009/03/20/cocos2d-tile-based-game-with-source/comment-page-1/#comment-115

   The problem i faced were:

   1) How do i move my map if it is larger than the iphone screen size? I hope there's an example how to do that ?

   2) How do i determine which location my sprite is in TileMap? For example I have a sprite stands in one location and how do i print the sprite location? using NSLog?

   3) how do I move my sprite to another location follow the tile's location? example my sprite is in location (1,1) and it wanna move in another tile's location let say, (5,4). How to do that?

   For now i can only import map created in Tiled base Map java base and it cannot do nothing just like insert image background?. Is there any tutorials? i've google and found nothing.

   Posted 2 years ago #
2. 

   pabloruiz55
   Member

   hi artakus!

   1) Every cocosnode has a camera property moving playing with that can create the effect you want. Basically you have to change the CenterX and the eyeX to match your player sprite on every update call. (if you want to center it along the y axis also change the CenterY and eyeY)
   If you want something to remain in its place (like some HUD elements) you should place them in another layer which you are not moving its camera.

   Here is a thread regarding this method and some others http://www.cocos2d-iphone.org/forum/topic/309#post-1746

   2)You can get the position of the sprite with mySprite.position.x and mySprite.position.y

   3) You must make some calculations, if your tiles are 30px * 30px you should move your sprite by 30 px. If you want it to snap to the grid then while moving it you should round its position to the closest tile edge. For example if moving your sprite would make it end at (60,142) you want it to move to (60,150) then you have to do (round((142 / 30)) * 30)

   Posted 2 years ago #
3. 

   riq
   Key Master

   hi,
   the Camera let's you manipulate a camera, and you can achieve nice effects like depths (and other 3d effects).
   but if you just want to move the camera to the left/right/bottom/top, then moving the object to the opposite position is similar (and a little bit faster):

   eg:
   

   [[node camera] setEyeX:100 Y:100 Z:400];
   [[node camera] setCenterX:100 Y:100 Z:0];
   
   // is the same as
   [node setPosition: ccp(-100,-100)];

   Posted 2 years ago #
4. 

   artakus
   Member

   hey thanks for your reply
   @ pabloruiz55

   I will try to understand the map concept and ask you again. thanks again

   @riq your value of setEyeX, setCenterX, Y, and Z are fix? What I want is drag a map using ccTouchesMoved and the map will be going to the top, left, right.

   I use this code in ccTouchesMoved but the way the camera move is not what i want:

   CODE:

   [self.camera setEyeX:convertedPoint.x eyeY:convertedPoint.y eyeZ:convertedPoint.x ];

   Any suggestion?

   Posted 2 years ago #
5. 

   artakus
   Member

   how do i read the tile location? if i wanna move my sprite let say (1,2). So, the code should look like this?:

   [sprite Move tileAt:ccg(1,2)];

   ? ? ? what the type tileAt:ccg(1,2) will return?

   Posted 2 years ago #
6. 

   JohnnyFlash
   Member

   @riq: with your example here, are there any functions to convert where on the layer a person has touched.

   [[node camera] setEyeX:100 Y:100 Z:400];
   [[node camera] setCenterX:100 Y:100 Z:0];
   
   // is the same as
   [node setPosition: ccp(-100,-100)];

   Of course with this simple example you can just adjust x and y with the camera offsets, but if the Z was large and you were scaled back, the math would be more complex. And if the layer was rotated at all, it would add even more complication.

   So I was hoping a transform was already around that I was just missing.

   Posted 2 years ago #
7. 

   nskhan
   Member

   Hi.. I am learning to develop a game using cocos2d for iphone.
   The game i am trying is a top down tile based game. I figured that the above code link is suitable for me to learn more and dig into development of the game I am trying to make.

   The link appears to be broken and its broken everywhere. If anyone has the source can you please repost it?

   Posted 2 years ago #

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