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Explication of createRandPoly from PhysicsLab?

in Questions Posts: 1,292

I often can’t understand other people’s code until I modify it to make their variable names super explicit and break the statements into smaller steps.

This is my attempt to understand the createRandPoly function in the PhysicsLab example:


function createRandPoly(x,y) local numSides = math.random(3,10) local radius = math.random(25,75) local direction = 0 local directionIncrement = 2 * math.pi / numSides local points = {} for i = 1, numSides do local distanceFromCenter = vec2(radius,0) local pointOnCircumference = distanceFromCenter:rotate(direction) local randomOffset = vec2(math.random(-10,10), math.random(-10,10)) local newPoint = pointOnCircumference + randomOffset direction = direction + directionIncrement table.insert(points, newPoint) end local poly = physics.body(POLYGON, table.unpack(points)) poly.x = x poly.y = y poly.sleepingAllowed = false poly.restitution = 0.25 debugDraw:addBody(poly) return poly end

...does that seem accurate?

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