fix(worldmap): use the new reference for key handling

Since gamecore 0.5.0, keys are available in Scene.sources[sourceid].keys 
instead of Scene.keys.

CHANGELOG.md

@@ -9,6 +9,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - **gamecore:** updated to 0.5.0
 
+### Fixed
+
+- **worldmap:** use gamecore 0.5.0-style key handling
+
 ## Imperium-Porcorum 0.0.1
 
 - Initial pre-alpha released based on source status before starting port to gamecore 0.5.0

imperium-porcorum.love/scenes/worldmap/init.lua

@@ -37,22 +37,23 @@ function WorldMap:registerDot(dot)
 end
 
 function WorldMap:update(dt)
-  if (self.keys["up"].isDown) and (self.cursor.canMove) then
+  local keys = self.sources[1].keys
+  if (keys["up"].isDown) and (self.cursor.canMove) then
     self.cursor.y       = math.max(0, self.cursor.y - 1)
     self.cursor.canMove = false
   end
 
-  if (self.keys["down"].isDown) and (self.cursor.canMove) then
+  if (keys["down"].isDown) and (self.cursor.canMove) then
     self.cursor.y       = math.min(12, self.cursor.y + 1)
     self.cursor.canMove = false
   end
 
-  if (self.keys["right"].isDown) and (self.cursor.canMove) then
+  if (keys["right"].isDown) and (self.cursor.canMove) then
     self.cursor.x       = math.min(27, self.cursor.x + 1)
     self.cursor.canMove = false
   end
 
-  if (self.keys["left"].isDown) and (self.cursor.canMove) then
+  if (keys["left"].isDown) and (self.cursor.canMove) then
     self.cursor.x       = math.max(0, self.cursor.x - 1)
     self.cursor.canMove = false
   end
@@ -77,7 +78,7 @@ function WorldMap:update(dt)
     self.cursor.canMove     = true
   end
 
-  if (self.keys["A"].isPressed) and (self.cursor.canMove) then
+  if (keys["A"].isPressed) and (self.cursor.canMove) then
     if (self.cursor.dotAtPoint ~= nil) then
       self.cursor.dotAtPoint:action()
     end