Change math.floor to more performant // operator (#953)

## Changes

Converts math.floor to the newer // operator which simplifies code and
has improved performance.

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have the right to submit it under the terms of this repository's open
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Author: CadeusTheGreat

content/en-us/education/battle-royale-series/cleanup-and-reset.md

@@ -483,7 +483,7 @@ local function startTimer()
 
 	while myTimer:isRunning() do
 		-- Adding +1 makes sure the timer display ends at 1 instead of 0.
-		timeLeft.Value = (math.floor(myTimer:getTimeLeft() + 1))
+		timeLeft.Value = (myTimer:getTimeLeft() + 1) // 1
 		-- By not setting the time for wait, it offers more accurate looping
 		task.wait()
 	end

content/en-us/education/battle-royale-series/creating-a-gui.md

@@ -362,7 +362,7 @@ Remember that module scripts are used to centralize similar code. Since the time
    ```lua
    while myTimer:isRunning() do
    	-- Adding +1 makes sure the timer display ends at 1 instead of 0.
-   	timeLeft.Value = (math.floor(myTimer:getTimeLeft() + 1))
+   	timeLeft.Value = (myTimer:getTimeLeft() + 1) // 1
    	-- By not setting the time for wait, it offers more accurate looping
    	task.wait()
    end
@@ -378,7 +378,7 @@ Remember that module scripts are used to centralize similar code. Since the time
 
    	while myTimer:isRunning() do
    		-- Adding +1 makes sure the timer display ends at 1 instead of 0.
-   		timeLeft.Value = (math.floor(myTimer:getTimeLeft() + 1))
+   		timeLeft.Value = (myTimer:getTimeLeft() + 1) // 1
    		-- By not setting the time for wait, it offers more accurate looping
    		task.wait()
    	end
@@ -492,7 +492,7 @@ local function startTimer()
 
 	while myTimer:isRunning() do
 		-- Adding +1 makes sure the timer display ends at 1 instead of 0.
-		timeLeft.Value = (math.floor(myTimer:getTimeLeft() + 1))
+		timeLeft.Value = (myTimer:getTimeLeft() + 1) // 1
 		-- By not setting the time for wait, it offers more accurate looping
 		task.wait()
 	end

content/en-us/education/battle-royale-series/ending-matches.md

@@ -562,7 +562,7 @@ local function startTimer()
 
 	while myTimer:isRunning() do
 		-- Adding +1 makes sure the timer display ends at 1 instead of 0.
-		timeLeft.Value = (math.floor(myTimer:getTimeLeft() + 1))
+		timeLeft.Value = (myTimer:getTimeLeft() + 1) // 1
 		-- By not setting the time for wait, it offers more accurate looping
 		task.wait()
 	end

content/en-us/luau/metatables.md

@@ -294,7 +294,7 @@ For this one we will be using the `__index` metamethod just to make it simple:
 ```lua
 local function mathProblem(num)
     for i = 1, 20 do
-    	num = math.floor(num * 10 + 65)
+    	num = (num * 10 + 65) // 1
     end
     for i = 1, 10 do
     	num += i - 1

content/en-us/reference/engine/libraries/bit32.yaml

@@ -451,7 +451,7 @@ functions:
       For positive displacements, the following equality holds:
 
       ```lua
-      assert(bit32.rshift(b, disp) == math.floor(b % 2^32 / 2^disp))
+      assert(bit32.rshift(b, disp) == (b % 2^32 / 2^disp) // 1)
       ```
 
       This shift operation is what is called logical shift.

content/en-us/tutorials/use-case-tutorials/lighting/creating-flickering-lights.md

@@ -147,7 +147,7 @@ end
 RunService.Heartbeat:Connect(function()
 	-- Solves for the NumberSequence's time (between 0 and 1).
 	local t = time() / loopDuration
-	local numberSequenceTime = t - math.floor(t)
+	local numberSequenceTime = t - (t // 1)
 
 	-- Gets the NumberSequence's value at this time.
 	local brightnessValue = evaluateNumberSequence(brightnessCurve, numberSequenceTime)

content/en-us/ui/3D-drag-detectors.md

@@ -398,14 +398,14 @@ local function snapToWorldGrid(proposedMotion)
 	if startPartPosition == nil then
 		return proposedMotion
 	end
-	local snapIncrement = math.floor(SNAP_INCREMENT)
+	local snapIncrement = SNAP_INCREMENT // 1
 	if snapIncrement < 1 then
 		return proposedMotion
 	end
 	local newWorldPosition = startPartPosition + proposedMotion.Position
-	local roundedX = math.floor(newWorldPosition.X / snapIncrement + 0.5) * snapIncrement
-	local roundedY = math.floor(newWorldPosition.Y / snapIncrement + 0.5) * snapIncrement
-	local roundedZ = math.floor(newWorldPosition.Z / snapIncrement + 0.5) * snapIncrement
+	local roundedX = ((newWorldPosition.X / snapIncrement + 0.5) // 1) * snapIncrement
+	local roundedY = ((newWorldPosition.Y / snapIncrement + 0.5) // 1) * snapIncrement
+	local roundedZ = ((newWorldPosition.Z / snapIncrement + 0.5) // 1) * snapIncrement
 	local newRoundedWorldPosition = Vector3.new(roundedX, roundedY, roundedZ)
 	return proposedMotion.Rotation + (newRoundedWorldPosition - startPartPosition)
 end