feat(scene/world): add background color support

framework/scenes/world/init.lua

@@ -50,6 +50,7 @@ function World:new(datas)
     end
 
     self:_initMap(map)
+    self:_initBackground(self.def.background or {})
 
     self.actors = {}
     self.bodies = Bump3D.newWorld(50)
@@ -77,6 +78,7 @@ function World:update(dt)
 end
 
 function World:draw()
+    self:_drawBackground()
     self.camera:attachView()
     self:drawLowerLayers()
     self:drawShapes()
@@ -310,4 +312,26 @@ function World:drawShapes()
     end
 end
 
+-- BACKGROUND
+-- Default color behind the world
+
+function World:_initBackground(background)
+    self.background = {r = background.r or 0, g = background.g or 0, b = background.b or 0}
+end
+
+function World:_drawBackground()
+    local r, g, b = love.graphics.getColor()
+
+    local background = self.background
+    if (self.map ~= nil) then
+        background.r, background.g, background.b = self.map:getBackgroundColor()
+    end
+
+    love.graphics.setColor(background.r, background.g, background.b, 1)
+    local w, h = core.screen:getDimensions()
+    love.graphics.rectangle("fill", 0, 0, w, h)
+
+    love.graphics.setColor(r, g, b, 1)
+end
+
 return World