scenes/levels: use the bounceFactor variable name

imperium-porcorum.love/scenes/levels/entities/debris.lua

@@ -9,7 +9,7 @@ function Debris:new(world, x, y, speed, dir, timelimit)
   self.timelimit = timelimit or 2
   self:setMotionDirection(dir, speed)
   self.grav = 1
-  self.bounce = 0.5
+  self.bounceFactor = 0.5
   self.frc = 0.046875*60*1.5
   self.rotation = love.math.random(0, 360)
 end

imperium-porcorum.love/scenes/levels/entities/parent.lua

@@ -20,7 +20,7 @@ function Entity:initPhysics(world, collType, x, y, w, h)
   self.xsp  = 0
   self.ysp  = 0
 
-  self.bounce = 0
+  self.bounceFactor = 0
   self.grav   = 0
   self.frc    = 0
 
@@ -39,8 +39,8 @@ function Entity:update(dt)
 
 end
 
-function Entity:canBounce(bounce)
-  self.bounce = bounce
+function Entity:canBounce(bounceFactor)
+  self.bounceFactor = bounceFactor
 end
 
 function Entity:setMotion(xsp, ysp)
@@ -76,11 +76,11 @@ function Entity:changeSpeedToCollisionNormal(nx, ny)
   local xsp, ysp = self.xsp, self.ysp
 
   if (nx < 0 and xsp > 0) or (nx > 0 and xsp < 0) then
-    xsp = -xsp * self.bounce
+    xsp = -xsp * self.bounceFactor
   end
 
   if (ny < 0 and ysp > 0) or (ny > 0 and ysp < 0) then
-    ysp = -ysp * self.bounce
+    ysp = -ysp * self.bounceFactor
   end
 
   self.xsp, self.ysp = xsp, ysp