Structs and Arrays hit me with confusion

Tratax

So i think i may need a refresher on how structs work..

I'm attempting to make a small demo that setups a struct with a position and color variable then runs a for loop to set this up with some randomised colors and then plot that group of 5 to the screen

This is my first attempt using structs so I may just be missing something basic?

pianofire

So I think that you need something like this:

gw = gWidth()
gh = gHeight()

struct pixel 
  vector pos
  vector col
endStruct

pixel pixels[5]

for i = 0 to 5 loop
  pixels[i] = [ .pos = { random(gw), random(gh) }, .col = { random(1.0), random(1.0), random(1.0), 1 } ]
repeat

loop
  clear()
  for i = 0 to 5 loop
    plot(pixels[i].pos.x, pixels[i].pos.y, pixels[i].col )
  repeat
  update()
repeat

Tratax

@pianofire - Thanks! I decided to switch back to arrays and this is now working.. I still don't understand the value/purpose of structs over arrays...

pianofire

@Tratax No problem. Whatever you are more comfortable with. It is just a way of grouping related information really so instead of having several different arrays you have a single array of structs

array enemyPosition[10]
array enemyHitpoints[10]

enemyPosition[0] = { 100, 100 }
enemyHitpoints[0] = 100

\\ is equivalent to

struct enemy
  vector Position
  int Hitpoints
endStruct

enemy enemies[10]
enemies[0].Position = { 100, 100 }
enemies[0].Hitpoints = 100

Tratax

@pianofire Ok awesome , thank you - I've really only stepped up from single variables to vectors and arrays in the last months so I'll need to practice more use of different variable types I think - Thanks again!