your-land/bugtracker#4668 13 Movie doesn't start twice

feature_bigscreen_entity.lua

@@ -1,7 +1,10 @@
-if not (yl_cinema.settings.enable_bigscreen and (yl_cinema.settings.enable_bigscreen == true)) then
+if not (yl_cinema.settings.enable_screens and (yl_cinema.settings.enable_screens == true)) then
     return
 end
 
+local warn = yl_cinema.warn
+local action = yl_cinema.action
+
 local bigscreen_entity_name = "yl_cinema:movie_bigscreen"
 local screen_width = 12
 local screen_height = 6.75
@@ -75,8 +78,31 @@ end
 -- Changepage
 
 local function showpage(ent_obj, movie_id, pagenum)
+
+    if not movie_id or not pagenum then
+        warn("Movie_id or pagenum not found, movie_id=" .. dump(movie_id)..", pagenum="..dump(pagenum))
+        return ""
+    end
+
     local movie = yl_cinema.get_movie(movie_id)
-    local pages = movie.pages
+
+    if not movie or pagenum then
+        warn("Movie_id or pagenum not found, movie_id=" .. dump(movie_id)..", pagenum="..dump(pagenum))
+        return ""
+    end
+
+    local pages = movie.pages or {}
+
+    if not ent_obj then
+        warn("Cinema Screen Object not found, movie_id=" .. dump(movie_id))
+        return ""
+    end
+
+    local ent_properties = ent_obj:get_properties()
+    if ent_properties._playing == true then
+        warn("Tried to play movie on running projector, movie_id=" .. dump(movie_id))
+        return ""
+    end
 
     if pagenum <= #pages then
 
@@ -94,7 +120,8 @@ local function showpage(ent_obj, movie_id, pagenum)
             local properties = {
                 textures = {movie.title_texture},
                 infotext = movie.name,
-                nametag = movie.description
+                nametag = movie.decription,
+                _playing = true
             }
             ent_obj:set_properties(properties)
         else
@@ -106,13 +133,21 @@ local function showpage(ent_obj, movie_id, pagenum)
             local properties = {
                 textures = {page.texture},
                 infotext = movie.name,
-                nametag = page.caption
+                nametag = page.caption,
+                _playing = true
             }
 
             ent_obj:set_properties(properties)
 
         end
-
+    else -- Fin
+        local properties = {
+            textures = {"yl_cinema_block_bigscreen.png^yl_cinema_icon_movie_inv.png"},
+            infotext = "Fin",
+            nametag = "Fin",
+            _playing = false
+        }
+        ent_obj:set_properties(properties)
     end
 end