Initial commit

README.md

@@ -1,2 +1,8 @@
-# gallery
-A gallery mod for Minetest
+# Gallery
+A gallery mod for Minetest.
+
+This mod uses some code from the gemalde mode by CasimirKaPazi (See: https://github.com/CasimirKaPazi/gemalde).
+
+Licenses:
+Code: GPL V3 or later
+Pictures: See textures/LICENSE_PICTURES

depends.txt

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+default

init.lua

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+-- Count the number of pictures.
+local function get_picture(number)
+    local filename	= minetest.get_modpath("gallery").."/textures/picture_"..number..".png"
+    local file		= io.open(filename, "r")
+    if file ~= nil then 
+        io.close(file) 
+        return true 
+    else 
+        return false 
+    end
+end
+
+local function get_pngwidthheight(number)
+    local width,height=0,0
+    local filename = minetest.get_modpath("gallery").."/textures/picture_"..number..".png"
+    local file=io.open(filename,"rb")
+    if file ~= nil then
+        file:seek("set",1)
+        if file:read(3)=="PNG" then
+            file:seek("set",12)
+            if file:read(4)=="IHDR" then
+                local widthstr,heightstr=file:read(4),file:read(4)
+                width=widthstr:sub(1,1):byte()*16777216+widthstr:sub(2,2):byte()*65536+widthstr:sub(3,3):byte()*256+widthstr:sub(4,4):byte()
+                height=heightstr:sub(1,1):byte()*16777216+heightstr:sub(2,2):byte()*65536+heightstr:sub(3,3):byte()*256+heightstr:sub(4,4):byte()
+            end
+        end                
+        io.close(file)
+    end
+    return width,height
+end
+    
+local N = 1
+
+while get_picture(N) == true do
+    N = N + 1
+end
+
+N = N - 1
+
+-- register for each picture
+for n=1, N do
+
+    local groups = {choppy=2, dig_immediate=3, picture=1, not_in_creative_inventory=1}
+    if n == 1 then
+        groups = {choppy=2, dig_immediate=3, picture=1}
+    end
+
+    -- Texture for the frame
+    local frame_texture = "metal.png"
+    -- Pixel size of the resulting texture for the node. Higher resolutions for more details.
+    local resulttexture_pix = 800
+    -- Frame border width in percent
+    local frame_widthpercent = 2.5
+    -- Scaling of the picture
+    local pic_scale = 2.5
+
+    -- Get the width and height of the picture from the file in pixel
+    local pic_pixwidth,pic_pixheight=get_pngwidthheight(n)
+    -- Get the max side lenght of the picture in pixel
+    local pic_pixmax = math.max(pic_pixwidth,pic_pixheight)
+    -- Frame border width in pixel
+    local frame_widthpixel = math.ceil(frame_widthpercent * pic_pixmax / 100.0)
+
+    -- Distance beetween the frame and the picture in pixel
+    local border_pix = 4
+    -- Pixel size of the combined square texture of the picture with frame and border
+    local pictexture_pix = pic_pixmax + (frame_widthpixel * 2) + (border_pix * 2)
+    -- X and Y position oft the picture in the combined square texture of the picture with frame and border
+    local pic_xoffset = ((pic_pixmax - pic_pixwidth) / 2) + frame_widthpixel + border_pix
+    local pic_yoffset = ((pic_pixmax - pic_pixheight) / 2) + frame_widthpixel + border_pix
+
+    -- Frame border width of the node
+    local frame_widthnode = 1.0 / pictexture_pix * frame_widthpixel
+    -- Frame border thickness of the node
+    local frame_thickness = 0.1
+
+    -- Picture width of the node (whole picture including frame)
+    local pic_width = 1.0
+    -- Picture height of the node (whole picture including frame)
+    local pic_height = 1.0
+    -- Picture thickness of the node
+    local pic_thickness = 0.05
+
+    if pic_pixwidth > pic_pixheight then
+        -- Landscape picture. Set the Picture height of the node (whole picture including frame) accordingly to the original picture aspect ratio
+        pic_height = (pic_width / pictexture_pix) * (pic_pixheight + 2 * (frame_widthpixel + border_pix))
+    else
+        -- Potrait picture Set the Picture width of the node (whole picture including frame) accordingly to the original picture aspect ratio
+        pic_width = (pic_height / pictexture_pix) * (pic_pixwidth + 2 * (frame_widthpixel + border_pix))
+    end
+
+    -- node
+    minetest.register_node("gallery:node_"..n.."", {
+        description = "Picture #"..n.."",
+        drawtype = "nodebox",
+         -- Tile definition in the follwing order: +Y, -Y, +X, -X, +Z, -Z. 
+        tiles = {
+            {name="("..frame_texture.."^[resize:"..resulttexture_pix.."x"..resulttexture_pix..")^([combine:"..pictexture_pix.."x"..pictexture_pix..":"..pic_xoffset..","..pic_yoffset.."=picture_"..n..".png^[resize:"..resulttexture_pix.."x"..resulttexture_pix..")"}, 
+            {name=frame_texture}
+        },
+        visual_scale = pic_scale,
+        inventory_image = "gallery_inventory.png",
+        wield_image = "gallery_inventory.png",
+        paramtype = "light",
+        paramtype2 = "wallmounted",
+        sunlight_propagates = true,
+        walkable = false,
+        node_box = {
+            type = "fixed",
+            -- Box definition in following order: {x1, y1, z1, x2, y2, z2}
+            fixed = {
+                -- Picture
+                {-pic_width/2.0, -0.5/pic_scale, -pic_height/2.0, pic_width/2.0, -(0.5 - pic_thickness) / pic_scale, pic_height/2.0},                   
+                -- Left frame border
+                {-pic_width/2.0, -0.5/pic_scale, -pic_height/2.0, -pic_width/2.0+frame_widthnode, -(0.5 - frame_thickness) / pic_scale, pic_height/2.0},
+                -- Right frame border
+                {pic_width/2.0-frame_widthnode, -0.5/pic_scale, -pic_height/2.0, pic_width/2.0, -(0.5 - frame_thickness) / pic_scale, pic_height/2.0},
+                 -- Bottom frame border
+                {-pic_width/2.0, -0.5/pic_scale, -pic_height/2.0, pic_width/2.0, -(0.5 - frame_thickness) / pic_scale, -pic_height/2.0+frame_widthnode},
+                -- Top frame border
+                {-pic_width/2.0, -0.5/pic_scale, pic_height/2.0-frame_widthnode, pic_width/2.0, -(0.5 - frame_thickness) / pic_scale, pic_height/2.0},
+            },
+        },
+        selection_box = {
+            type = "wallmounted",
+        },
+        groups = groups,
+
+        on_rightclick = function(pos, node, clicker)
+            local length = string.len (node.name)
+            local number = string.sub (node.name, 14, length)
+            
+            -- TODO. Reducing currently not working, because sneaking prevents right click.
+            local keys=clicker:get_player_control()
+            if keys["sneak"]==false then
+                if number == tostring(N) then
+                    number = 1
+                else
+                    number = number + 1
+                end
+            else
+                if number == 1 then
+                    number = N - 1
+                else
+                    number = number - 1
+                end
+            end
+
+            print("[gallery] number is "..number.."")
+            node.name = "gallery:node_"..number..""
+            minetest.env:set_node(pos, node)
+        end
+
+        --	TODO.
+        --	on_place = minetest.rotate_node
+    })
+
+    -- crafts
+    if n < N then
+        minetest.register_craft({
+            output = 'gallery:node_'..n..'',
+            recipe = {
+                {'gallery:node_'..(n+1)..''},
+            }
+        })
+    end
+
+    n = n + 1
+
+end
+
+-- close the craft loop
+minetest.register_craft({
+    output = 'gallery:node_'..N..'',
+    recipe = {
+        {'gallery:node_1'},
+    }
+})
+
+-- initial craft
+minetest.register_craft({
+    output = 'gallery:node_1',
+    recipe = {
+        {'default:paper', 'default:paper'},
+        {'default:paper', 'default:paper'},
+        {'default:paper', 'default:paper'},
+    }
+})
+
+-- reset several pictures to #1
+minetest.register_craft({
+    type = 'shapeless',
+    output = 'gallery:node_1 2',
+    recipe = {'group:picture', 'group:picture'},
+})
+
+minetest.register_craft({
+    type = 'shapeless',
+    output = 'gallery:node_1 3',
+    recipe = {'group:picture', 'group:picture', 'group:picture'},
+})
+
+minetest.register_craft({
+    type = 'shapeless',
+    output = 'gallery:node_1 4',
+    recipe = {
+        'group:picture', 'group:picture', 'group:picture', 
+        'group:picture'
+    }
+})
+
+minetest.register_craft({
+    type = 'shapeless',
+    output = 'gallery:node_1 5',
+    recipe = {
+        'group:picture', 'group:picture', 'group:picture', 
+        'group:picture', 'group:picture'
+    }
+})
+
+minetest.register_craft({
+    type = 'shapeless',
+    output = 'gallery:node_1 6',
+    recipe = {
+        'group:picture', 'group:picture', 'group:picture', 
+        'group:picture', 'group:picture', 'group:picture'
+    }
+})
+
+minetest.register_craft({
+    type = 'shapeless',
+    output = 'gallery:node_1 7',
+    recipe = {
+        'group:picture', 'group:picture', 'group:picture', 
+        'group:picture', 'group:picture', 'group:picture', 
+        'group:picture'
+    }
+})
+
+minetest.register_craft({
+    type = 'shapeless',
+    output = 'gallery:node_1 8',
+    recipe = {
+        'group:picture', 'group:picture', 'group:picture', 
+        'group:picture', 'group:picture', 'group:picture', 
+        'group:picture', 'group:picture'
+    }
+})
+
+minetest.register_craft({
+    type = 'shapeless',
+    output = 'gallery:node_1 9',
+    recipe = {
+        'group:picture', 'group:picture', 'group:picture', 
+        'group:picture', 'group:picture', 'group:picture', 
+        'group:picture', 'group:picture', 'group:picture'
+    }
+})

textures/LICENSE_PICTURES

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+picture_1.png
+
+Creator: Hans Ben / https://pixabay.com/images/id-1974614/
+License: Pixabay License / https://pixabay.com/service/license/
+
+---------------------------------------------------------------------------------------------------------
+picture_2.png
+
+Creator: Brigitte Werner / https://pixabay.com/images/id-4018682/
+License: Pixabay License / https://pixabay.com/service/license/
+
+---------------------------------------------------------------------------------------------------------
+picture_3.png
+
+Creator: Pezibear / https://pixabay.com/images/id-671449/
+License: Pixabay License / https://pixabay.com/service/license/
+
+---------------------------------------------------------------------------------------------------------
+picture_4.png
+
+Creator: Hans Ben / https://pixabay.com/images/id-1948690/
+License: Pixabay License / https://pixabay.com/service/license/
+
+---------------------------------------------------------------------------------------------------------
+picture_5.png
+
+Creator: Bernd Lachner / dev@lachner-net.de
+License: CC BY-NC-ND 3.0 DE
+This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Germany License. 
+To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/de/ or send a 
+letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
+
+---------------------------------------------------------------------------------------------------------
+picture_6.png
+
+Creator: Bernd Lachner / dev@lachner-net.de
+License: CC BY-NC-ND 3.0 DE
+This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Germany License. 
+To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/de/ or send a 
+letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.