Maze

Comments

• Ignatz Mod

  October 2014 Posts: 5,396

  Yes, code helps
• lupino8211

  October 2014 edited October 2014 Posts: 175

  @Ignatz i make it like dave1707's example of multiple objects, so i attach his example .
  And this is my main class . I tried call body:destroy() func in line 53 , but this attempt didn't work
• dave1707 Mod

  October 2014 Posts: 8,741

  @lupino8211 To get rid of physics objects you don't want anymore, just use
  body:destroy() . If they're also in a table, remove that entry after the destroy.
• dave1707 Mod

  October 2014 Posts: 8,741

  @lupino8211 Here's an example. I create 200 physics objects in a table, destroy them and remove them from the table when they get to the line. The number below the line shows how many objects are in the table.

  
  displayMode(FULLSCREEN)
  supportedOrientations(PORTRAIT_ANY)
  
  function setup()
      tab={}
      for z=1,200 do
          b=physics.body(CIRCLE,20)
          b.x=math.random(WIDTH)
          b.y=math.random(HEIGHT,5*HEIGHT)
          b.gravityScale=.1
          table.insert(tab,b)
      end
  end
  
  function draw()
      background(40,40,50)
      fill(255)
      text(#tab,WIDTH/2,250)
      stroke(255)
      strokeWidth(3)
      line(0,280,WIDTH,280)
      for a,b in pairs(tab) do   -- loop to show and check objects
          ellipse(b.x,b.y,40)
          if b.y<300 then
              b:destroy()   -- destroy object
              b.info="rem"   -- set to indicate it needs to be removed
          end
      end
      for z=#tab,1,-1 do   -- loop to remove them from the table
          if tab[z].info=="rem" then
              table.remove(tab,z)  -- remove from table
          end
      end
  end
  
  
• lupino8211

  October 2014 edited October 2014 Posts: 175

  @dave1707 thank you very much
• lupino8211

  October 2014 edited October 2014 Posts: 175

  @dave1707 wtf is wrong?

  
  
• lupino8211

  October 2014 edited October 2014 Posts: 175

  @dave1707 wait. I think i have got it

  Upd : no, i dont
• Ignatz Mod

  October 2014 Posts: 5,396

  @lupino8211 - should be b:destroy()
• lupino8211

  October 2014 Posts: 175

  @dave1707 @ Ignatz , thank you for you suggestions, but I decide not to mess around with physics no more
• dave1707 Mod

  October 2014 Posts: 8,741

  @lupino8211 A lot of what I showed will be used even if you don't use physics objects. So don't give up on physics just because you don't understand it. Physics objects are used in a lot of games and make the games easier to code then if you tried to do it without physics objects.
• SkyTheCoder

  October 2014 edited October 2014 Posts: 1,976

  @lupino In that for loop, a is the index of the variable, and b is the variable itself. So since the variable is your physics body, you should call b:destroy(). a is just the information of where the variable is in the table.
• lupino8211

  October 2014 Posts: 175

  @dave1707 thank you, hope everything else will work good
• lupino8211

  October 2014 Posts: 175

  @SkyTheCoder thank you, but i knew this. It's typo