Added in display item rotation

Updated the Readme. Added in the ability to rotate the displayed item with a screwdriver. Made the Screwdriver mod required, due to rotating the item being fundamental behavoir.

Finalized a few bug fixes... still have to remove the all of the forced debug code, and move the item frames and glow frames over to the new api, and do a final test.

mods/ITEMS/mcl_itemframes/README.txt

@@ -1,4 +1,13 @@
-This mod is originally by Zeg9, but heavily modified for MineClone 2.
+This mod has been rewritten and revamped by Michieal / Faerraven. Based on the code originally done by Zeg9, and then
+heavily modified by the Mineclone 2 dev team.
+
+This mod now supports all the base item frame functions, like rotating the displayed item, which it didn't do before it
+was rewritten. Additionally, Glow Frames have been added in, and item frames now has an API to allow new item frames to
+be created in other modules.
+Now requires the Screwdriver to have full functionality.
+
+The code is licenced under the standard MineClone 2 license for usage, with the requirement that this readme is
+included in the code / module.
 
 Model created by 22i, licensed under the
 GNU GPLv3 <https://www.gnu.org/licenses/gpl-3.0.html>.

mods/ITEMS/mcl_itemframes/item_frames_API.lua

@@ -33,6 +33,99 @@ local glow_amount = 6 -- LIGHT_MAX is 15, but the items aren't supposed to be a
 local frame_item_base = {}
 local map_item_base = {}
 
+-- Time to Fleckenstein! (it just sounds cool lol)
+
+--- self: the object to roll.
+local function update_roll(self, pos)
+
+    -- get the entity's metadata.
+    local meta = minetest.get_meta(pos)
+
+    -- using an integer, as it's the number of 45 degree turns. ie, 0 to 7
+    local current_roll = meta:get_int("roll", 0)
+    local new_roll = current_roll + 1
+
+    if new_roll == 8 then
+        new_roll = 0
+    end
+    meta:set_int("roll", new_roll)
+
+    local new_roll_deg = new_roll * 45
+
+    -- * `get_rotation()`: returns the rotation, a vector (radians)
+    local rot = self:get_rotation()
+    local Radians = 0
+
+    -- Radians = Degrees * (pi / 180) degrees to radian formula
+    -- Radian quick chart
+    -- One full revolution is equal to 2π rad (or) 360°.
+    -- 1° = 0.017453 radians and 1 rad = 57.2958°.
+    -- To convert an angle from degrees to radians, we multiply it by π/180°.
+    -- To convert an angle from radians to degrees, we multiply it by 180°/π.
+
+    Radians = new_roll_deg * (pi / 180)
+    rot.z = Radians
+
+    self:set_rotation(rot)
+
+end
+
+--- self: the object to roll.
+--- faceDeg: 0-7, inclusive.
+local function set_roll(self, faceDeg)
+    -- get the entity's metadata.
+    local meta = minetest.get_meta(self:get_pos())
+
+    -- using an integer, as it's the number of 45 degree turns. ie, 0 to 7
+    local new_roll = faceDeg
+
+    if new_roll >= 8 then
+        new_roll = 7
+    end
+    if new_roll <= 0 then
+        new_roll = 0
+    end
+
+    meta:set_int("roll", new_roll)
+
+    local new_roll_deg = new_roll * 45
+
+    -- * `get_rotation()`: returns the rotation, a vector (radians)
+    local rot = self:get_rotation()
+    local Radians = 0
+
+    -- Radians = Degrees * (pi / 180) degrees to radian formula
+    -- Radian quick chart
+    -- One full revolution is equal to 2π rad (or) 360°.
+    -- 1° = 0.017453 radians and 1 rad = 57.2958°.
+    -- To convert an angle from degrees to radians, we multiply it by π/180°.
+    -- To convert an angle from radians to degrees, we multiply it by 180°/π.
+
+    Radians = new_roll_deg * (pi / 180)
+
+    rot.z = Radians
+
+    self:set_rotation(rot)
+end
+
+local function update_map_texture (self, staticdata)
+    self.id = staticdata
+    local result = true
+    result = mcl_maps.load_map(self.id, function(texture)
+        -- will not crash even if self.object is invalid by now
+        -- update... quite possibly will screw up with each version of Minetest. >.<
+        if not texture then
+            minetest.log("error", "Failed to load the map texture using mcl_maps.")
+        end
+
+        self.object:set_properties({ textures = { texture } })
+    end)
+    if result ~= nil and result == false then
+        mintest.log("error", "[mcl_itemframes] Error setting up Map Item.")
+    end
+
+end
+
 local remove_item_entity = function(pos, node)
 
     local name_found = false
@@ -133,6 +226,11 @@ mcl_itemframes.update_item_entity = function(pos, node, param2)
             end
             map_id_entity:set_yaw(yaw)
         end
+
+        -- finally, set the rotation (roll) of the displayed object.
+        local roll = meta:get_int("roll", 0)
+        set_roll(map_id_entity, roll)
+
     end
 end
 
@@ -250,6 +348,10 @@ mcl_itemframes.update_generic_item_entity = function(pos, node, param2)
                 minetest.log("error", "[mcl_itemframes] Update_Generic_Item: Failed to set Map Item in " .. found_name_to_use .. "'s frame.")
             end
         end
+
+        -- finally, set the rotation (roll) of the displayed object.
+        local roll = meta:get_int("roll", 0)
+        set_roll(map_id_entity, roll)
     end
 end
 
@@ -269,6 +371,7 @@ local drop_item = function(pos, node, meta, clicker)
     end
 
     meta:set_string("infotext", "")
+    meta:set_int("roll", 0)
     remove_item_entity(pos, node)
 end
 
@@ -474,15 +577,14 @@ mcl_itemframes.item_frame_base = {
     end,
 
     on_rotate = function(pos, node, user, mode, param2)
-        if mode == screwdriver.ROTATE_FACE then
-            -- Rotate face
         --local meta = minetest.get_meta(pos)
         local node = minetest.get_node(pos)
 
         local objs = nil
-
         local name_found = false
         local found_name_to_use = ""
+        name_found = false
+        found_name_to_use = ""
 
         for k, v in pairs(mcl_itemframes.frames_registered.glowing) do
             if node.name == v then
@@ -505,46 +607,34 @@ mcl_itemframes.item_frame_base = {
 
         if node.name == found_name_to_use then
             objs = minetest.get_objects_inside_radius(pos, 0.5)
+        else
+            return -- short circuit if it's somehow not the right thing.
         end
+
         if objs then
+            if mode == screwdriver.ROTATE_FACE or mode == screwdriver.ROTATE_AXIS then
                 for _, obj in ipairs(objs) do
                     if obj and obj:get_luaentity() then
                         local obj_name = obj:get_luaentity().name
                         if obj_name == "mcl_itemframes:item" or obj_name == "mcl_itemframes:glow_item" then
-                            mcl_itemframes.update_item_entity(pos, node, (node.param2 + 1) % 4)
+                            if mode == screwdriver.ROTATE_AXIS then
+                                update_roll(obj, pos)
+                            end
                             break
                         elseif obj_name == found_name_to_use .. "_item" then
-                            mcl_itemframes.update_generic_item_entity(pos, node, (node.param2 + 1) % 4)
+                            if mode == screwdriver.ROTATE_AXIS then
+                                update_roll(obj, pos)
+                            end
                             break
                         end
                     end
                 end
-            end
-            return
-        elseif mode == screwdriver.ROTATE_AXIS then
                 return false
             end
+        end
     end,
 }
 
-local function update_map_texture (self, staticdata)
-    self.id = staticdata
-    local result = true
-    result = mcl_maps.load_map(self.id, function(texture)
-        -- will not crash even if self.object is invalid by now
-        -- update... quite possibly will screw up with each version of Minetest. >.<
-        if not texture then
-            minetest.log("error", "Failed to load the map texture using mcl_maps.")
-        end
-
-        self.object:set_properties({ textures = { texture } })
-    end)
-    if result ~= nil and result == false then
-        mintest.log("error", "[mcl_itemframes] Error setting up Map Item.")
-    end
-
-end
-
 --- reworked to set up the base item definitions, and to register them for item and glow_item.
 function mcl_itemframes.create_base_item_entity()
     if 1 == 1 then
@@ -615,7 +705,6 @@ function mcl_itemframes.create_base_item_entity()
         on_activate = function(self, staticdata)
             if 1 == 1 then
                 minetest.log("action", "[mcl_itemframes] map_item:on_activate.")
-
             end
             update_map_texture(self, staticdata)
         end,
@@ -787,23 +876,6 @@ function mcl_itemframes.create_base_frames()
     mcl_itemframes.glow_frame_base.wield_image = "mcl_itemframes_glow_item_frame.png"
     mcl_itemframes.glow_frame_base.mesh = "mcl_itemframes_glow_item_frame.obj"
 
-    --mcl_itemframes.glow_frame_base.light_source = minetest.LIGHT_MAX -- add in glow (a hack at best, but it's a node) TODO: make actual glow.
-    mcl_itemframes.glow_frame_base.on_timer = function(pos)
-        local inv = minetest.get_meta(pos):get_inventory()
-        local stack = inv:get_stack("main", 1)
-        local itemname = stack:get_name()
-        if minetest.get_item_group(itemname, "clock") > 0 then
-            local new_name = "mcl_clock:clock_" .. (mcl_worlds.clock_works(pos) and mcl_clock.old_time or mcl_clock.random_frame)
-            if itemname ~= new_name then
-                stack:set_name(new_name)
-                inv:set_stack("main", 1, stack)
-                local node = minetest.get_node(pos)
-                mcl_itemframes.update_item_entity(pos, node, node.param2)
-            end
-            minetest.get_node_timer(pos):start(1.0)
-        end
-    end
-
     minetest.register_node("mcl_itemframes:glow_item_frame", mcl_itemframes.glow_frame_base)
 
     mcl_itemframes.update_frame_registry("false", "mcl_itemframes:item_frame", false)
@@ -811,4 +883,3 @@ function mcl_itemframes.create_base_frames()
     create_register_lbm("mcl_itemframes:item_frame")
     create_register_lbm("mcl_itemframes:glow_item_frame")
 end
-

mods/ITEMS/mcl_itemframes/mod.conf

@@ -1,3 +1,2 @@
 name = mcl_itemframes
-depends = mcl_core, mcl_sounds, mcl_compass, mcl_maps
+depends = mcl_core, mcl_sounds, mcl_compass, mcl_maps, screwdriver
-optional_depends = screwdriver