first problem

[gagagott]

hi,
I´m new here and i have an noob problem.
Why this code does´t work:

Code: Select all

function load()
end

function update(dt)
end

function draw()
   love.graphics.draw("hello world",100,100)
end

only a black window apperars. why?

[Merkoth]

That's because you're not setting any font to draw text with. To solve this, you can use the default font:

Code: Select all

local font = love.graphics.newFont(love.default_font, 12) 
love.graphics.setFont(font) 

Or load your own:

Code: Select all

local font = love.graphics.newFont("Arial.ttf", 12) 
love.graphics.setFont(font) 

You can read a tutorial about fonts here and, of course, check the LÖVE docs for further details.

And welcome

[gagagott]

oh thanks

[gagagott]

ok, next question.xD
why this code doesn´t change from A to I

Code: Select all

------------------------------------------------------

function load()

--Player settings

  player_walk_timer=0
  player_skin='A'
  player_size=12
  player_walking=false
  player_font = love.graphics.newFont(love.default_font, player_size)


--Physical settings

  world = love.physics.newWorld(1000, 1000) 
  world:setGravity(0, 100) 

  ground = love.physics.newBody(world, 0, 0, 0)      
  ground_shape = love.physics.newRectangleShape(ground, 500, 490, 1000, 10)

  player=love.physics.newBody(world,100,100,10)
  player_csharp=love.physics.newCircleShape(player,player_size/2)
 

end

------------------------------------------------------

function update(dt)

  world:update(dt)
  
  if player_walk_timer>1 then
    player_walk_timer=0
    if (player_skin=='A') then
      plyer_skin='I'
    else
      player_skin='A'
    end  
  end

  player_walk_timer=player_walk_timer+dt

end

------------------------------------------------------

function draw()

love.graphics.setFont(player_font)
love.graphics.draw(player_skin,player:getX(),player:getY())
love.graphics.draw("player_walk_timer="..player_walk_timer,100,100)

[bartbes]

typo:

Code: Select all

plyer_skin='I'

should be

Code: Select all

player_skin='I'

[gagagott]

oh thanks I´m a little bit messy.

[gagagott]

I hope this is my last problem.xD
http://love2d.org/docs/Body_applyForce_2.html

what means offset?

[Merkoth]

That is probably one of the most annoying things of Lua

Edit: Argh. Replied to the wrong post X_X

[Merkoth]

I hope this is my last problem.xD
http://love2d.org/docs/Body_applyForce_2.html

what means offset?

According to Box2D docs, the offset is the point (in world coordinates) where the force is applied, usually resulting in a torque about the center of mass of said body.

Just for the record: LÖVE's physics subsystem is based in an external library called Box2D, so most LÖVE physics-related methods have their Box2D counterpart, making the Box2D manual a handy tool when in doubt

[gagagott]

Is there any easy way too look if the user click on a body of an image?