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gametest
Member
Hello,
My game is using more than 25 mb. I want to know that i need to remove sprite from the layer or not??
Example :: In my main screen I used 5 sprites locally in Layer class.
Sprite *bg = [Sprite spriteWithFile:@"background.png"];
bg.position = cpv(240,160);
[self add:bg z:1];
Now when I replace the scene i am not removing sprites from the layer. So, is it save memory or what??
Thanks in advance.
@gametest :
When you replace a scene, the replaced scene is dealloc'd (unless you have manually retained it somewhere). Your sprites should be automatically removed from the scene layer. But a Sprite is different than the texture it uses to draw itself on the screen. If you want to free the memory the sprites' textures are using, you need to use the functions Codemattic cited above.
gametest
Member
I have main three scene in my game. The mainScene, GameScene and endScene. When user touch "Play" button in the mainScene GameScene will be replaced. & when game over endScene will display. yes, memory keeps increasing.
I don't know about Texture. Where I supposed to write -removeUnusedTextures and -removeTexture: methods.
gametest
Member
my game is like battle city.
I made one file for obstacles (eg. bricks(images)) derived from Sprite. It have other attributes. For example:
@interface obstacles : Sprite
{
NSString *name;
int type;
int life;
int effectType;
int direction;
float speed;
int destroyType;
...............
.................
}
Now when I load xml file every time I write following line.
In loadxml.m file
obstacles *objObstacles = [obstacles alloc];
objObstacles.life = life;
objObstacles.direction = direction;
objObstacles.speed = speed;
[arrObstacles addObject:objObstacles];
& then I have one array (globally declared NSMutableArray *arrObstacles;) to store all obstacles. I add this object to this array.
So, suppose I have 30 - 40 obstacles in level then "objObstacles = [obstacles alloc];"
this will call 30 -40 times.
If i release that object after adding it to array it will give me error. is this thing increase memory. How can I solve this problem.
I am adding enemy, power in the scene same way.
Pls help me.
Codemattic
Moderator
"objObstacles = [obstacles alloc];"
looks like you forgot to init your new obstacles object
The way to create an object is:
obstacles *objObstacles = [[obstacles alloc] init];
and you need to write an -init method for your obstacles class (you should probably capitalize that "Obstacles") that calls super
-(id) init
{
if (!(self=[super init]) )
return nil;
//do your initialization stuff here
return self;
}then you can release it:
`
...
[arrObstacles addObject:objObstacles];
[objObstacles release];
Codemattic
Moderator
"I don't know about Texture. Where I supposed to write -removeUnusedTextures and -removeTexture: methods. "
oops I missed that question earlier. If you are having memory problems bc you are keeping textures around that you dont need anymore:
[[TextureMgr sharedTextureMgr] removeUnusedTextures];
Im not sure if that is your problem though. But if you have different big background images that you load, but only use one at a time, that method should help.
Codemattic
Moderator
sorry, since obstacles is a Sprite subclass you need to call the Sprite initializer so a better init for obstacles would be:
-(id) init
{
if (!(self=[super initWithFile:@"mySpriteimage.png"]) )
return nil;
//do your initialization stuff here
return self;
}sorry I missed that.
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