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| __TOC__
| | #REDIRECT [[Circle]] |
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| == Introduction ==
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| This tutorial will show you how to make semicircles and circles. It would be helpful if you knew some basic trigonometry, but it is not necessary.
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| == What are we trying to do? ==
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| This is not a [[Part]] with the shape of a [[Shape|Ball]]. This is instead a rather hollow outline pixelated with many small bricks. In fact, you won't be touching bricks at all -- you will only be scripting.
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| == Steps ==
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| * Create a new, blank, map in [[Roblox Studio]].
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| * Insert > Object > Script
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| * Insert the following into that script (the explanation is below):
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| <pre>
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| local i = 0
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| for i = 1, 360, 1 do
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| local p = Instance.new("Part")
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| p.Parent = game.Workspace
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| p.Name = "Brick"
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| p.Size = Vector3.new(1,1,1)
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| p.Anchored = true
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| p.Position=Vector3.new(100*math.cos(i), 100*math.sin(i))
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| wait()
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| end
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| </pre>
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| == Explanation ==
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| A circle has 360 degrees. You are going to create 360 little bricks for your circle. The "for" loop runs 360 times.<br>
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| Each time the "for" loop runs, it:<br>
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| * Creates a new 'part', of which the parent is "game.Workspace".
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| * The part's name is "Brick"
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| * The Brick's size is (1,1,1) -- remember, we wanted little bricks.
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| * All the bricks are anchored, so that they don't fall down.<br>
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| Now comes the tricky part: we want to position the bricks as a circle. If you've taken trigonometry, the next line should make sense. If not, all this is saying that the X value should be 100 times a mathematical function named "cosine" of the value of "i", and the Y value should be 100 times a mathematical function named "sine" of the value of "i". Sine and cosine are functions to study angles and circles.
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| Run this, and you should get a nice little semicircle. You can copy and flip it, and you'll get a full circle.
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| == Advanced ==
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| The above example is a rather large semicircle. Let's say you want a smaller one. You'll have to do two things:<br>
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| * Reduce the factor that you are multiplying the cos and sin by.
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| * Reduce the number of iterations (which reduces the number of bricks). If you don't do this, you will have double-layered bricks, which isn't as pretty. Example:
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| <pre>
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| local i = 0
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| for i = 1, 360, 3 do
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| local p = Instance.new("Part")
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| p.Parent = game.Workspace
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| p.Name = "Brick"
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| p.Size = Vector3.new(1,1,1)
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| p.Anchored = true
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| p.Position=Vector3.new(50*math.cos(i), 50*math.sin(i))
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| wait()
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| end
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| </pre>
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| [[Category:Scripting Tutorials]]
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