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Fix tutorial file with correct function calls #258

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Mar 27, 2021
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Fix tutorial file with correct function calls #258

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25 changes: 7 additions & 18 deletions tutorials/01-introduction-to-sti.md
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Original file line number Diff line number Diff line change
Expand Up @@ -230,7 +230,7 @@ function love.load()
end
```

Cool, we can now move our player around the screen! But that's only half the battle. We also want to centre the player in the screen so that the player never runs away from us. Instead, we want the world to move around our player. How do we accomplish this? LÖVE provides graphics transform tools such as `translate`, `rotate`, and `scale` that will give us the illusion that our player is static and the world is dynamic, instead of the other way around.
Cool, we can now move our player around the screen! But that's only half the battle. We also want to centre the player in the screen so that the player never runs away from us. Instead, we want the world to move around our player. How do we accomplish this? You can provide arguments to STI's `map.draw` to scale and translate the world. First two arguments are the translation and third and fourth are the scale.

```lua
function love.draw()
Expand All @@ -239,11 +239,8 @@ function love.draw()
local tx = math.floor(player.x - love.graphics.getWidth() / 2)
local ty = math.floor(player.y - love.graphics.getHeight() / 2)

-- Transform world
love.graphics.translate(-tx, -ty)

-- Draw world
map:draw()
-- Draw world with translation
map:draw(-tx, -ty)
end
```

Expand All @@ -263,12 +260,8 @@ function love.draw()
local tx = math.floor(player.x - screen_width / 2)
local ty = math.floor(player.y - screen_height / 2)

-- Transform world
love.graphics.scale(scale)
love.graphics.translate(-tx, -ty)

-- Draw world
map:draw()
-- Draw world with translation and scaling
map:draw(-tx, -ty, scale)
end
```

Expand Down Expand Up @@ -371,12 +364,8 @@ function love.draw()
local tx = math.floor(player.x - screen_width / 2)
local ty = math.floor(player.y - screen_height / 2)

-- Transform world
love.graphics.scale(scale)
love.graphics.translate(-tx, -ty)

-- Draw world
map:draw()
-- Draw world with translation and scaling
map:draw(-tx, -ty, scale)
end
```

Expand Down