dimensional arrays

dimensional arrays

I need to make a 2 and 3 dimensional array

How would I go about doing this in the world editor ?

whith sizes sx and sy, to access element [x,y] use (your_array[x*sy + y])

Hello! Every array in the physics memory (1d, 2d, 3d etc) are placed linear. And why you create 3 dimensional array in c++ for example, elements for this array will placed as
0,0,0 ; 1,0,0 ; .... mx-1,0,0; 0,1,0; 1,1,0; ... mx-1,1,0; etc...

the basic formula for poly dimensially arrays to transfer this to 1-dimensially array (or physics memory) for 2 and 3 dimensions:

El[0] ... El[ma] - linear array (for example, this is your map array of any type)

mx - x dimension of array you need to make
my - y dimension of array you need to make
mz - z dimension of array you need to make

for 2 dimensions ma = (mx * my - 1)
for 3 dimensions ma = (mx * my * mz - 1)

register your El array with "ma" elements and use for access this formulas:

for element x,y of 2d array you need to get El[a] element where a = x + y*mx

for element x,y,z of 3d array you need to get El[a] element where a = x + y*mx + z*my*mx




for example, u need array with mx=2, my=3, mz=4. ma = mx*my*mz-1 = 23. 23 is the max index, but not dimension of linear array; really dimension is 24. and for access to element 0,0,0 you need to access El[0]; for access to 1,2,3 you need to access El[23]; for access to 1,0,2 you need to access El[13]


Note that all coordinates in this formulas are started with 0, not with 1! if you want to first index 1, you must replace all x,y and z with (x-1), (y-1),(z-1) and add +1 to all formulas

sorry for my bad english

WRONG BITСH

multidimensional arrays in c++ are represented by buffers of data scattered randomly and pointers to them. char m[10] will take 10 bytes. char n[10][20] will take 20x10 bytes for data, not necessarily continuous, AND 10x4 bytes for pointers. n[4] will be a pointer to array of 20 chars.

lol.
i only were want to help human with his problem in warcraft map. by for c++ you right, i was error, because i wasnt program c++ too long...
but my formulas are right and question is fully closed

Use a game cache and store your data under a heading comprized of 9 digets.
Every 3 diget could refert to a deminsion and once data is set in the cache all you must do is retrieve it by giving the say reference.
This is the easiest way of making a 3D array.

Gamecaches can hold much less elements than arrays, however.

Did you ever hear about such thing as 'performance' dr? You do realise that game cache is slow as hell, right?

use my method and be happy about performance: this method not bad

dimensional arrays

I would rather not jimmy-rig 3 or 2 1 dimension arrays into a simulation of a 2 dimensional array, that just doesn’t sound efficient

what is the point of my spell working, if the game lags ?

There should be a text box in the variable options that changes the dimension of your array.

Low-Life's method works perfectly well.

Low-Life's method will also take a long time to set up properly, I'm always clumsy with my logic

@ Low-Life

ty for the equations, I will try them out