Replace tga to png

This commit is contained in:
kay27 2022-01-31 06:41:18 +04:00
parent da28fc2cea
commit 957a831dbf
6 changed files with 91 additions and 192 deletions

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@ -1,4 +0,0 @@
# tga_encoder
A TGA Encoder written in Lua without the use of external Libraries.
May be used as a Minetest mod.

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@ -1,92 +0,0 @@
tga_encoder = {}
local image = setmetatable({}, {
__call = function(self, ...)
local t = setmetatable({}, {__index = self})
t:constructor(...)
return t
end,
})
function image:constructor(pixels)
self.data = ""
self.pixels = pixels
self.width = #pixels[1]
self.height = #pixels
self:encode()
end
function image:encode_colormap_spec()
self.data = self.data
.. string.char(0, 0) -- first entry index
.. string.char(0, 0) -- number of entries
.. string.char(0) -- bits per pixel
end
function image:encode_image_spec()
self.data = self.data
.. string.char(0, 0) -- X-origin
.. string.char(0, 0) -- Y-origin
.. string.char(self.width % 256, math.floor(self.width / 256)) -- width
.. string.char(self.height % 256, math.floor(self.height / 256)) -- height
.. string.char(24) -- pixel depth (RGB = 3 bytes = 24 bits)
.. string.char(0) -- image descriptor
end
function image:encode_header()
self.data = self.data
.. string.char(0) -- image id
.. string.char(0) -- color map type
.. string.char(10) -- image type (RLE RGB = 10)
self:encode_colormap_spec() -- color map specification
self:encode_image_spec() -- image specification
end
function image:encode_data()
local current_pixel = ''
local previous_pixel = ''
local count = 1
local packets = {}
local rle_packet = ''
for _, row in ipairs(self.pixels) do
for _, pixel in ipairs(row) do
current_pixel = string.char(pixel[3], pixel[2], pixel[1])
if current_pixel ~= previous_pixel or count == 128 then
packets[#packets +1] = rle_packet
count = 1
previous_pixel = current_pixel
else
count = count + 1
end
rle_packet = string.char(128 + count - 1) .. current_pixel
end
end
packets[#packets +1] = rle_packet
self.data = self.data .. table.concat(packets)
end
function image:encode_footer()
self.data = self.data
.. string.char(0, 0, 0, 0) -- extension area offset
.. string.char(0, 0, 0, 0) -- developer area offset
.. "TRUEVISION-XFILE"
.. "."
.. string.char(0)
end
function image:encode()
self:encode_header() -- header
-- no color map and image id data
self:encode_data() -- encode data
-- no extension or developer area
self:encode_footer() -- footer
end
function image:save(filename)
local f = assert(io.open(filename, "w"))
f:write(self.data)
f:close()
end
tga_encoder.image = image

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@ -1,3 +0,0 @@
name = tga_encoder
author = Fleckenstein
description = A TGA Encoder written in Lua without the use of external Libraries.

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@ -1,24 +1,12 @@
mcl_maps = {}
local modname = minetest.get_current_modname()
local modpath = minetest.get_modpath(modname)
local S = minetest.get_translator(modname)
local math = math
local vector = vector
local table = table
local pairs = pairs
local pos_to_string = minetest.pos_to_string
local string_to_pos = minetest.string_to_pos
local get_item_group = minetest.get_item_group
local dynamic_add_media = minetest.dynamic_add_media
local get_connected_players = minetest.get_connected_players
local storage = minetest.get_mod_storage()
local S = minetest.get_translator("mcl_maps")
local modpath = minetest.get_modpath("mcl_maps")
local worldpath = minetest.get_worldpath()
local map_textures_path = worldpath .. "/mcl_maps/"
--local last_finished_id = storage:get_int("next_id") - 1
local math_min = math.min
local math_max = math.max
minetest.mkdir(map_textures_path)
@ -40,17 +28,15 @@ local loaded_maps = {}
local c_air = minetest.get_content_id("air")
function mcl_maps.create_map(pos)
local minp = vector.multiply(vector.floor(vector.divide(pos, 128)), 128)
local maxp = vector.add(minp, vector.new(127, 127, 127))
local minp = vector.subtract(vector.floor(pos), 64)
local maxp = vector.add(minp, 127)
local itemstack = ItemStack("mcl_maps:filled_map")
local meta = itemstack:get_meta()
local next_id = storage:get_int("next_id")
storage:set_int("next_id", next_id + 1)
local id = tostring(next_id)
local id = string.format("%.0f", minetest.hash_node_position(minp))
meta:set_string("mcl_maps:id", id)
meta:set_string("mcl_maps:minp", pos_to_string(minp))
meta:set_string("mcl_maps:maxp", pos_to_string(maxp))
meta:set_string("mcl_maps:minp", minetest.pos_to_string(minp))
meta:set_string("mcl_maps:maxp", minetest.pos_to_string(maxp))
tt.reload_itemstack_description(itemstack)
creating_maps[id] = true
@ -62,19 +48,31 @@ function mcl_maps.create_map(pos)
local emin, emax = vm:read_from_map(minp, maxp)
local data = vm:get_data()
local param2data = vm:get_param2_data()
local area = VoxelArea:new({MinEdge = emin, MaxEdge = emax})
local offset_x, offset_y, offset_z = minp.x - emin.x, minp.y - emin.y, minp.z - emin.z
local dx = emax.x - emin.x + 1
local dy = (emax.y - emin.y + 1) * dx
local offset = offset_z * dy + offset_y * dx + offset_x
local map_y_start = 64 * dx
local map_y_limit = 127 * dx
local pixels = {}
local last_heightmap
for x = 1, 128 do
local map_x = minp.x - 1 + x
local map_x = x + offset
local heightmap = {}
for z = 1, 128 do
local map_z = minp.z - 1 + z
local map_z = (z-1) * dy + map_x
local color, height
for map_y = maxp.y, minp.y, -1 do
local index = area:index(map_x, map_y, map_z)
local c_id = data[index]
if c_id ~= c_air then
local map_y = map_z + map_y_start
local map_y_limit = map_z + map_y_limit
while data[map_y] ~= c_air and map_y < map_y_limit do
map_y = map_y + dx
end
while data[map_y] == c_air and map_y > map_z do
map_y = map_y - dx
end
local c_id = data[map_y]
color = color_cache[c_id]
if color == nil then
local nodename = minetest.get_name_from_content_id(c_id)
@ -102,38 +100,41 @@ function mcl_maps.create_map(pos)
end
if color and color.palette then
color = color.palette[param2data[index] + 1]
color = color.palette[param2data[map_y] + 1]
else
color_cache[c_id] = color or false
end
if color and last_heightmap then
local last_height = last_heightmap[z]
if last_height < map_y then
local y = map_y - map_z
if last_height < y then
color = {
math.min(255, color[1] + 16),
math.min(255, color[2] + 16),
math.min(255, color[3] + 16),
math_min(255, color[1] + 16),
math_min(255, color[2] + 16),
math_min(255, color[3] + 16),
}
elseif last_height > map_y then
elseif last_height > y then
color = {
math.max(0, color[1] - 16),
math.max(0, color[2] - 16),
math.max(0, color[3] - 16),
math_max(0, color[1] - 16),
math_max(0, color[2] - 16),
math_max(0, color[3] - 16),
}
end
end
height = map_y
break
end
end
height = map_y - map_z
heightmap[z] = height or minp.y
pixels[z] = pixels[z] or {}
pixels[z][x] = color or {0, 0, 0}
pixels[#pixels + 1] = color and {r = color[1], g = color[2], b = color[3]} or {r = 0, g = 0, b = 0}
end
last_heightmap = heightmap
end
tga_encoder.image(pixels):save(map_textures_path .. "mcl_maps_map_texture_" .. id .. ".tga")
local png = minetest.encode_png(128, 128, pixels)
local f = io.open(map_textures_path .. "mcl_maps_map_texture_" .. id .. ".png", "w")
if not f then return end
f:write(png)
f:close()
creating_maps[id] = nil
end)
return itemstack
@ -144,11 +145,11 @@ function mcl_maps.load_map(id)
return
end
local texture = "mcl_maps_map_texture_" .. id .. ".tga"
local texture = "mcl_maps_map_texture_" .. id .. ".png"
if not loaded_maps[id] then
loaded_maps[id] = true
dynamic_add_media(map_textures_path .. texture, function() end)
minetest.dynamic_add_media(map_textures_path .. texture, function() end)
end
return texture
@ -229,14 +230,14 @@ end
local old_add_item = minetest.add_item
function minetest.add_item(pos, stack)
stack = ItemStack(stack)
if get_item_group(stack:get_name(), "filled_map") > 0 then
if minetest.get_item_group(stack:get_name(), "filled_map") > 0 then
stack:set_name("mcl_maps:filled_map")
end
return old_add_item(pos, stack)
end
tt.register_priority_snippet(function(itemstring, _, itemstack)
if itemstack and get_item_group(itemstring, "filled_map") > 0 then
if itemstack and minetest.get_item_group(itemstring, "filled_map") > 0 then
local id = itemstack:get_meta():get_string("mcl_maps:id")
if id ~= "" then
return "#" .. id, mcl_colors.GRAY
@ -262,7 +263,7 @@ minetest.register_craft({
local function on_craft(itemstack, player, old_craft_grid, craft_inv)
if itemstack:get_name() == "mcl_maps:filled_map" then
for _, stack in pairs(old_craft_grid) do
if get_item_group(stack:get_name(), "filled_map") > 0 then
if minetest.get_item_group(stack:get_name(), "filled_map") > 0 then
itemstack:get_meta():from_table(stack:get_meta():to_table())
return itemstack
end
@ -299,7 +300,7 @@ minetest.register_on_leaveplayer(function(player)
end)
minetest.register_globalstep(function(dtime)
for _, player in pairs(get_connected_players()) do
for _, player in pairs(minetest.get_connected_players()) do
local wield = player:get_wielded_item()
local texture = mcl_maps.load_map_item(wield)
local hud = huds[player]
@ -319,8 +320,8 @@ minetest.register_globalstep(function(dtime)
local pos = vector.round(player:get_pos())
local meta = wield:get_meta()
local minp = string_to_pos(meta:get_string("mcl_maps:minp"))
local maxp = string_to_pos(meta:get_string("mcl_maps:maxp"))
local minp = minetest.string_to_pos(meta:get_string("mcl_maps:minp"))
local maxp = minetest.string_to_pos(meta:get_string("mcl_maps:maxp"))
local marker = "mcl_maps_player_arrow.png"

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@ -1,8 +1,5 @@
# textdomain: mcl_maps
Empty Map=Carte Vierge
Empty maps are not useful as maps, but they can be stacked and turned to maps which can be used.=Les cartes vierges ne sont pas utiles en tant que cartes, mais elles peuvent être empilées et transformées en cartes utilisables.
Rightclick to create a filled map (which can't be stacked anymore).=Clic droit pour créer une carte remplie (qui ne peut plus être empilée).
Rightclick to start using the map (which can't be stacked anymore).=Clic droit pour commencer à utiliser la carte (qui ne peut plus être empilée).
Map=Carte
Shows a map image.=Affiche une carte.
When created, the map saves the nearby area as an image that can be viewed any time by holding the map.=Lors de sa création, la carte sauvegarde le terrain proche sous forme d'image qui peut être consultée n'importe quand en tenant la carte dans la main.
Hold the map in your hand. This will display a map on your screen.=Tenez la carte dans votre main. Cela affichera la carte à l'écran.

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@ -1,2 +1,2 @@
name = mcl_maps
depends = mcl_core, mcl_flowers, tga_encoder, tt, mcl_colors, mcl_skins, mcl_util
depends = mcl_core, mcl_flowers, tt, mcl_colors, mcl_skins, mcl_util