add a fixed (non-rotating) screen option

feature_bigscreen_entity.lua

@@ -22,20 +22,51 @@ local bigscreen_entity_definition = {
     textures = {"yl_cinema_block_bigscreen.png^yl_cinema_icon_movie_inv.png"},
     _yl_cinema_stored_movie = "",
     on_blast = function()
-
-		return false, false, {}
-	end
+        return false, false, {}
+    end
 }
 
 minetest.register_entity(bigscreen_entity_name, bigscreen_entity_definition)
 
+
+local flatscreen_entity_name = "yl_cinema:movie_flatscreen"
+local flatscreen_entity_initial_properties = {}
+local flatscreen_entity_definition = {
+    initial_properties = flatscreen_entity_initial_properties,
+    visual = "mesh",
+    mesh = "yl_cinema_unit_plane.obj",
+    backface_culling = false, -- make visible from both sides
+    visual_size = {
+        -- 1 unit in world coords is 10 units in model coords
+        x = screen_width * 10,
+        y = 1,
+        z = screen_height * 10,
+    },
+    glow = 15,
+    nametag = "",
+    nametag_color = "#ffcc00",
+    nametag_bgcolor = "#000000",
+    collisionbox = {0},
+    physical = false,
+    textures = {"yl_cinema_block_bigscreen.png^yl_cinema_icon_movie_inv.png"},
+    _yl_cinema_stored_movie = "",
+    on_blast = function()
+        return false, false, {}
+    end
+}
+
+minetest.register_entity(flatscreen_entity_name, flatscreen_entity_definition)
+
+
 -- Helper
 
 local function find_entity(pos)
     local v = vector.new(0, 3.5, 0)
     local center_pos = vector.add(pos, v)
     for _, obj in pairs(minetest.get_objects_inside_radius(center_pos, 0.5)) do
-        if obj and obj:get_luaentity() and (obj:get_luaentity().name == bigscreen_entity_name) then
+        if obj and obj:get_luaentity() and
+            (obj:get_luaentity().name == bigscreen_entity_name or
+             obj:get_luaentity().name == flatscreen_entity_name) then
             return obj
         end
     end
@@ -109,18 +140,42 @@ local function get_formspec(pos)
     return table.concat(formspec, "")
 end
 
-local function on_construct_node(pos)
+local function spawn_bigscreen(pos)
     local v = vector.new(0, 3.5, 0)
     local center_pos = vector.add(pos, v)
 
+    minetest.add_entity(center_pos, bigscreen_entity_name)
+end
+
+local function spawn_flatscreen(pos, rotation)
+    local v = vector.new(0, 3.5, 0)
+    local center_pos = vector.add(pos, v)
+
+    local screen = minetest.add_entity(center_pos, flatscreen_entity_name)
+    if screen then
+        screen:set_rotation(vector.new(math.pi/2.0, rotation, 0))
+    end
+end
+
+local function on_construct_base_node(pos)
     local meta = minetest.get_meta(pos)
     local formspec = get_formspec(pos)
     meta:set_string("formspec", formspec)
 
     local inv = meta:get_inventory()
     inv:set_size("movie", 1)
+end
 
-    minetest.add_entity(center_pos, bigscreen_entity_name)
+local function on_construct_bigscreen_node(pos)
+    on_construct_base_node(pos)
+    spawn_bigscreen(pos)
+end
+
+local function on_construct_flatscreen_node(pos)
+    on_construct_base_node(pos)
+
+    local node = minetest.get_node(pos)
+    spawn_flatscreen(pos, node.param2 * math.pi/2)
 end
 
 local function on_destruct_node(pos)
@@ -199,7 +254,7 @@ end
 
 yl_cinema.bigscreen_block_name = "yl_cinema:bigscreen_base"
 local bigscreen_block_definition = {
-    description = "Cinema Base",
+    description = "Cinema Base with rotating screen",
     drawtype = "nodebox",
     node_box = {
         type = "fixed",
@@ -212,7 +267,7 @@ local bigscreen_block_definition = {
              "yl_cinema_block_bigscreen.png", "yl_cinema_block_bigscreen.png", "yl_cinema_block_bigscreen.png",
              "yl_cinema_block_bigscreen.png"},
     can_dig = can_dig_node,
-    on_construct = on_construct_node,
+    on_construct = on_construct_bigscreen_node,
     on_destruct = on_destruct_node,
     on_blast = on_blast_node,
     on_receive_fields = on_receive_fields_node,
@@ -220,7 +275,37 @@ local bigscreen_block_definition = {
     allow_metadata_inventory_take = allow_metadata_inventory_take_node,
     allow_metadata_inventory_move = function()
         return
-    end
+    end,
 }
 
 minetest.register_node(yl_cinema.bigscreen_block_name, bigscreen_block_definition)
+
+
+yl_cinema.flatscreen_block_name = "yl_cinema:flatscreen_base"
+local flatscreen_block_definition = {
+    description = "Cinema Base with fixed screen",
+    paramtype2 = "4dir",
+    drawtype = "nodebox",
+    node_box = {
+        type = "fixed",
+        fixed = {{-0.5, -0.5, -0.5, 0.5, -0.4, 0.5}}
+    },
+    groups = {
+        cracky = 3
+    },
+    tiles = {"yl_cinema_block_bigscreen.png^yl_cinema_icon_movie_inv.png", "yl_cinema_block_bigscreen.png",
+             "yl_cinema_block_bigscreen.png", "yl_cinema_block_bigscreen.png", "yl_cinema_block_bigscreen.png",
+             "yl_cinema_block_bigscreen.png"},
+    can_dig = can_dig_node,
+    on_construct = on_construct_flatscreen_node,
+    on_destruct = on_destruct_node,
+    on_blast = on_blast_node,
+    on_receive_fields = on_receive_fields_node,
+    allow_metadata_inventory_put = allow_metadata_inventory_put_node,
+    allow_metadata_inventory_take = allow_metadata_inventory_take_node,
+    allow_metadata_inventory_move = function()
+        return
+    end,
+}
+
+minetest.register_node(yl_cinema.flatscreen_block_name, flatscreen_block_definition)

models/yl_cinema_unit_plane.obj

@@ -0,0 +1,16 @@
+# Blender 3.3.6
+# www.blender.org
+mtllib unit_plane.mtl
+o Plane
+v -0.500000 0.000000 0.500000
+v 0.500000 0.000000 0.500000
+v -0.500000 0.000000 -0.500000
+v 0.500000 0.000000 -0.500000
+vn -0.0000 1.0000 -0.0000
+vt 0.999900 0.999900
+vt 0.000100 0.999900
+vt 0.999900 0.000100
+vt 0.000100 0.000100
+s 0
+f 2/2/1 3/3/1 1/1/1
+f 2/2/1 4/4/1 3/3/1