Help with mousepressed function

[Johna321]

I just got Love like an hour ago, and I've never used Lua before, so I'm still trying to wrap my head around some of the functions. I'm trying to make a program in which, you are a sprite (yoshi) and can move around with WASD, if you press the left mouse button, then yoshi turns to mario. Just in case, the variable mega is yoshi.

Heres the code:

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function love.load()
   mega = love.graphics.newImage("yoshi.png")
   var = "Use WASD to move your character around!"
   mario = love.graphics.newImage("mario.png")
   charx = 200
   chary = 100
   mario = false
end

function love.update(dt)
   function love.draw()
      love.graphics.print(var,300,400)
      if mario == false then
         love.graphics.draw(mega,charx,chary,0,0.2,0.2)
      elseif mario == true then
         love.graphics.draw(mario,charx,chary)
      end
   end

   if love.keyboard.isDown("w") then
      chary = chary - 10
   elseif love.keyboard.isDown("s") then
      chary = chary + 10
   end

   if love.keyboard.isDown("a") then
      charx = charx - 10
   elseif love.keyboard.isDown("d") then
      charx = charx + 10
   end

   function love.mousepressed(x,y,button)
      if button == '1' then
         mario = true
         charx = x
         chary = y
      end
   end
end

[s-ol]

the mouse button parameter to love.mousepressed is a number (like 1) but you are comparing it to a string ('1'). Remove the quotes and it should work.

Also move love.draw and love.mousepressed out of love.update! Right now you are redefining those two functions every frame.

[Ikroth]

Also, you define the variable mario as two different things.

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mario = love.graphics.newImage("mario.png")

Then, in the same function, you define mario to be:

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mario = false

So, later when you set mario equal to true and you attempt to draw the image:

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elseif mario == true then
	love.graphics.draw(mario,charx,chary)
end

LÖVE will throw an error, because you are trying to draw mario, which is a boolean, when it was actually expecting something you could draw (like an Image). So, you'll want to assign the image to a different variable, like marioImage.

(As a sidenote: writing "elseif mario == true" is redundant, because "if" already checks if an expression is true. So, writing: "elseif mario then" is equivalent.)