147 lines
4.0 KiB
Lua
147 lines
4.0 KiB
Lua
local log = require "lib.log"
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local tilesheet = require "lib.tilesheet"
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local utf8 = require "utf8"
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local utility = require "lib.utility"
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log{
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keypressed = false,
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textinput = false,
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}
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local window_width, window_height = love.graphics.getDimensions()
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local tiles, tiles_json, tile_image, tile_usage
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local current_text, current_prompt = "", ""
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local current_quad
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local current_x, current_y = 1, 1
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local flag_new_file -- this automatically chooses a JSON file location for new files
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local prompts = {
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start_new = "Drag and drop an image or JSON file to name tiles.",
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tile_size = "Enter the tile_size for this tilesheet:",
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enter_name = "Enter the name for this tile (leave empty to skip):",
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}
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current_prompt = prompts.start_new
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local get_tile_usage = function(tiles_json, tile_image)
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local image_width, image_height = tile_image:getDimensions()
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local tile_usage = {}
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for x = 1, image_width / tiles_json.tile_size do
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tile_usage[x] = {}
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for y = 1, image_height / tiles_json.tile_size do
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tile_usage[x][y] = false
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end
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end
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for name, tile_data in pairs(tiles_json.tiles) do
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tile_usage[tile_data.x][tile_data.y] = true
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end
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return tile_usage
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end
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local next_unused_tile = function(tiles_json, tile_image, tile_usage)
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local tile_size = tiles_json.tile_size
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for x = 1, #tile_usage do
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for y = 1, #tile_usage[1] do
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if not (tile_usage[x][y]) then
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current_x = x
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current_y = y
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current_quad = love.graphics.newQuad( (x - 1) * tile_size, (y - 1) * tile_size, tile_size, tile_size, tile_image )
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return current_quad
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end
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end
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end
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end
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local save_tileset = function()
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if not (tiles_json) then return end
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if flag_new_file then
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utility.save_data(tiles_json, tiles_json.image_path .. ".json")
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else
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utility.save_data(tiles_json)
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end
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end
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function love.load()
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love.keyboard.setKeyRepeat(true)
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end
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function love.draw()
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love.graphics.printf(current_prompt, 0, 0, window_width)
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love.graphics.printf(current_text, 0, 20, window_width) -- lazy magic number
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if current_quad then
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love.graphics.draw(tile_image, current_quad, 0, 40) -- lazy magic number
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end
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end
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function love.textinput(character)
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log("textinput", "textinput", character)
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current_text = current_text .. character
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end
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function love.keypressed(key)
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log("keypressed", "keypressed", key)
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if key == "escape" then
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save_tileset()
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love.event.quit()
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elseif key == "backspace" then
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local byteoffset = utf8.offset(current_text, -1)
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if byteoffset then
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current_text = current_text:sub(1, byteoffset - 1)
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end
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elseif key == "return" then
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-- end of a textinput; what to do depends on what was being asked
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if current_prompt == prompts.tile_size then
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tiles_json.tile_size = tonumber(current_text)
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current_text = ""
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tile_usage = get_tile_usage(tiles_json, tile_image)
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if next_unused_tile(tiles_json, tile_image, tile_usage) then
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current_prompt = prompts.enter_name
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end
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elseif current_prompt == prompts.enter_name then
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if #current_text > 0 then
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tiles_json.tiles[current_text] = { x = current_x, y = current_y, }
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end
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tile_usage[current_x][current_y] = true
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current_text = ""
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if not (next_unused_tile(tiles_json, tile_image, tile_usage)) then
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save_tileset()
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current_prompt = prompts.start_new
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end
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end
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end
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end
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function love.filedropped(dropped_file)
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local file_path = dropped_file:getFilename()
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local file_extension = file_path:match("%.%w+$")
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if file_extension == ".json" then
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tiles_json = utility.load_data(file_path)
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flag_new_file = false
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tiles, tile_image = tilesheet(tiles_json)
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tile_usage = get_tile_usage(tiles_json, tile_image)
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if next_unused_tile(tiles_json, tile_image, tile_usage) then
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current_prompt = prompts.enter_name
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end
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else
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tiles_json = {
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image_path = file_path,
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tiles = {},
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-- tile_size is not defined yet
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}
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flag_new_file = true
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tiles, tile_image = tilesheet(file_path)
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current_prompt = prompts.tile_size
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current_text = ""
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end
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end
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