Hi,
I have read the FAQ about 'out of memory' issues and acted as instructed. I am however still experiencing problems with memory and would like to know more about the factors that lead to the system becoming out of memory.

My system is:
Mac G5 - Dual 2 GHz
2 GB DDR SDRam
OS X 10.4.6

The project I am currently working on includes multiple classes of quite small (100 x 200 pixels approx) sprite images. Creating multiple objects of these classes seems to prompt the problem with memory.

As I have only a basic knowledge of programming I don't understand where the memory is being used given that the complete size of my data folder is only 4.8MB. Below is an example of a class in my project:

//*********************************************************// Person 1 Class
//*********************************************************

class Person_1_Left
{
 // Person 1 Variables
 
 int num_Person_1_Frames = 34;
 int num_Person_1_Move_Right = 34;
 int Person_1_Frame = 0;
 int Person_1_Y = 210;
 
 float Person_1_X;
 
 PImage[] Person_1_Left = new PImage [num_Person_1_Frames];  


 Person_1_Left()
 {
   Person_1_Left[0] = loadImage ("Pete_L1.png");
   Person_1_Left[1] = Person_1_Left[0];
   Person_1_Left[2] = loadImage ("Pete_L2.png");
   Person_1_Left[3] = Person_1_Left[2];
   Person_1_Left[4] = loadImage ("Pete_L3.png");
   Person_1_Left[5] = Person_1_Left[4];
   Person_1_Left[6] = loadImage ("Pete_L4.png");
   Person_1_Left[7] = Person_1_Left[6];
   Person_1_Left[8] = loadImage ("Pete_L5.png");
   Person_1_Left[9] = Person_1_Left[8];
   Person_1_Left[10] = loadImage ("Pete_L6.png");
   Person_1_Left[11] = Person_1_Left[10];
   Person_1_Left[12] = loadImage ("Pete_L7.png");
   Person_1_Left[13] = Person_1_Left[12];
   Person_1_Left[14] = loadImage ("Pete_L8.png");
   Person_1_Left[15] = Person_1_Left[14];
   Person_1_Left[16] = loadImage ("Pete_L9.png");
   Person_1_Left[17] = Person_1_Left[16];
   Person_1_Left[18] = loadImage ("Pete_L10.png");
   Person_1_Left[19] = Person_1_Left[18];
   Person_1_Left[20] = loadImage ("Pete_L11.png");
   Person_1_Left[21] = Person_1_Left[20];
   Person_1_Left[22] = loadImage ("Pete_L12.png");
   Person_1_Left[23] = Person_1_Left[22];
   Person_1_Left[24] = loadImage ("Pete_L13.png");
   Person_1_Left[25] = Person_1_Left[24];
   Person_1_Left[26] = loadImage ("Pete_L14.png");
   Person_1_Left[27] = Person_1_Left[26];
   Person_1_Left[28] = loadImage ("Pete_L15.png");
   Person_1_Left[29] = Person_1_Left[28];
   Person_1_Left[30] = loadImage ("Pete_L16.png");
   Person_1_Left[31] = Person_1_Left[30];
   Person_1_Left[32] = loadImage ("Pete_L17.png");
   Person_1_Left[33] = Person_1_Left[32];
 }


 void Person_1_Walks_Left (float Person_1_X, int Person_1_Y)
 {
   Person_1_Frame = (Person_1_Frame + 1) % num_Person_1_Move_Right;
   image(Person_1_Left[Person_1_Frame], Person_1_X, Person_1_Y);  
 }
}
//*********************************************************

Could this be down to inefficient programming or am I going about this in the wrong way?

If anyone would like to take a look at the project as a whole to get a better idea I can zip up the whole folder and send it by email (if possible)

Thanks

Andy

It seems to me that the problem is that every time you create an instance of the class all the images are loaded into memory. So if your images take up 4.8MB, if you create 4 instances of that class you will have loaded (4.8 * 4)MB into memory. You should change it so that all of the class instances reference the same images so that you only load the images into memory once. I think you could do this by making the image array a static property and then create a static method called loadResources() or something like that. Then before you create any instances of the class you'd do:

Person_1_Left.loadResources();

Hi,
that worked a treat. I can now get my app running with 8MB of RAM.

Thanks

Andy