feat(boxes): add a way to make basic boxes invisible

gamecore/modules/world/actors/utils/boxes/parent.lua

@@ -23,7 +23,7 @@
 
 local Box3D = Object:extend()
 
-function Box3D:new(owner, w, h, d)
+function Box3D:new(owner, w, h, d, isVisible)
   self.owner    = owner
   self.world    = owner.world
   self.cameras  = self.world.cameras
@@ -37,7 +37,12 @@ function Box3D:new(owner, w, h, d)
   self.shadowSources = {}
   self.needRedraw = false
 
-  self:setTexture()
+  self.isVisible  = isVisible or true
+
+  if (self.isVisible) then
+    self:setTexture()
+  end
+
   self.shadows = love.graphics.newCanvas(self.w, self.h)
 
   self:register()
@@ -138,12 +143,15 @@ function Box3D:redrawShadowCanvas()
 end
 
 function Box3D:draw(x, y, z)
-  love.graphics.setColor(0, 0, 0, 1)
-  if (self.haveLine) then
-    love.graphics.rectangle("line", x, (y-z) - (self.d), self.w, self.d + self.h)
+  if (self.isVisible) then
+    love.graphics.setColor(0, 0, 0, 1)
+    if (self.haveLine) then
+      love.graphics.rectangle("line", x, (y-z) - (self.d), self.w, self.d + self.h)
+    end
+    utils.graphics.resetColor()
+    love.graphics.draw(self.texture, x, (y-z) - (self.d))
   end
-  utils.graphics.resetColor()
-  love.graphics.draw(self.texture, x, (y-z) - (self.d))
+
   if (self.shadows ~= nil) and (#self.shadowSources > 0) then
     love.graphics.draw(self.shadows, x, (y-z) - (self.d))
   end