Cacaus volant!

data/viewport.lua

@@ -13,7 +13,8 @@ function viewport.new()
 			 room=viewport.coord2room,
              roomXY= viewport.room2coord,
              tile= viewport.coord2tile,
-             screen_coords = viewport.screen_coords } 
+             screen_coords = viewport.screen_coords,
+             inside = viewport.inside } 
 end
 
 function viewport:screen_coords ( x, y )
@@ -22,6 +23,12 @@ function viewport:screen_coords ( x, y )
     return scr_x, scr_y
 end
 
+function viewport:inside( x, y )
+    local result = false
+    if x>=self.x and x<=self.x+self.width and y>=self.y and y<=self.y+self.height then result = true end
+    return result
+end
+
 function viewport:coord2tile ()
 	local tw = arcade_config.tiles_width
 	local th = arcade_config.tiles_height