First working pass at "lite-hearted" love2d driver

README.md

@@ -1,3 +1,16 @@
+# lite-hearted
+
+lite-hearted is a small compatibility shim for the lite text editor that allows
+it to run in love2d. It is a quick-and-dirty experiment in embedding editing tools
+into a game engine, to allow for building smooth game development workflows. It's
+also literally a two-evening hack, so you will probably run into some rough edges!
+
+You can run it simply by cloning this repo and running `love .`. Due to the
+limitations of love2d's sandboxed filesystem, you can only edit files that are in
+the project itself. Given the goals of this project, this should be fine.
+
+Original README follows:
+
 # lite
 ![screenshot](https://user-images.githubusercontent.com/3920290/81471642-6c165880-91ea-11ea-8cd1-fae7ae8f0bc4.png)
 

conf.lua

@@ -0,0 +1,6 @@
+function love.conf(t)
+    t.window.width = 1280
+    t.window.height = 1000
+    t.window.resizable = true
+  end
+  

main.lua

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+renderer = {}
+
+function renderer.show_debug(show)
+    -- useful?
+end
+
+function renderer.get_size()
+    return love.graphics.getWidth(), love.graphics.getHeight()
+end
+
+function renderer.begin_frame()
+    love.graphics.origin()
+    love.graphics.clear(love.graphics.getBackgroundColor())
+end
+
+function renderer.end_frame()
+    love.graphics.present()
+end
+
+function renderer.set_clip_rect(x, y, w, h)
+    love.graphics.setScissor(x, y, w, h)
+end
+
+function renderer.set_litecolor(color)
+    if not color or #color < 3 then color = { 255, 255, 255, 255 } end
+    local alpha = 1
+    if #color == 4 then
+        alpha = color[4] / 255
+    end
+    love.graphics.setColor(color[1] / 255, color[2] / 255, color[3] / 255, alpha)
+end
+function renderer.draw_rect(x, y, w, h, color)
+    renderer.set_litecolor(color)
+    love.graphics.rectangle("fill", x, y, w, h)
+end
+
+function renderer.draw_text(font, text, x, y, color)
+    renderer.set_litecolor(color)
+    local textobj = love.graphics.newText(font.font, text)
+    love.graphics.draw(textobj, x, y)
+    return x + textobj:getWidth()
+end
+
+renderer.font = {}
+function renderer.font.load(filename, size)
+    local font = love.graphics.newFont(filename, size)
+    return {
+        font = font,
+        set_tab_width = function(self, n)
+            -- todo? Ignore?
+        end,
+        get_width = function(self, text)
+            return self.font:getWidth(text)
+        end,
+        get_height = function(self)
+            return self.font:getHeight()
+        end
+    }
+end
+
+system = {}
+function system.poll_event()
+    local function button_name(button)
+        if button == 1 then return 'left' end
+        if button == 2 then return 'right' end
+        if button == 3 then return 'middle' end
+        return '?'
+    end
+    local function key_name(key)
+        if key:sub(1, 2) == "kp" then
+            return "keypad " .. key:sub(3)
+        end
+        if key:sub(2) == "ctrl" or key:sub(2) == "shift" or key:sub(2) == "alt" or key:sub(2) == "gui" then
+            if key:sub(1, 1) == "l" then return "left " .. key:sub(2) end
+            return "right " .. key:sub(2)
+        end
+        return key
+    end
+    love.event.pump()
+    for ev, a, b, c, d, e, f in love.event.poll() do
+        if ev == 'quit' then
+            return 'quit'
+        elseif ev == 'resize' then
+            return 'resized', a, b
+        elseif ev == 'filedropped' then
+            return 'filedropped', a:getFilename(), love.mouse.getX(), love.mouse.getY()
+        elseif ev == 'keypressed' then
+            return 'keypressed', key_name(a or b)
+        elseif ev == 'keyreleased' then
+            return 'keyreleased', key_name(a or b)
+        elseif ev == 'textinput' then
+            return 'textinput', a
+        elseif ev == 'mousepressed' then
+            return 'mousepressed', button_name(c), a, b, e
+        elseif ev == 'mousereleased' then
+            return 'mousereleased', button_name(c), a, b
+        elseif ev == 'mousemoved' then
+            return 'mousemoved', a, b, c, d
+        elseif ev == 'wheelmoved' then
+            return 'mousewheel', b
+        end
+    end
+end
+
+function system.wait_event(n)
+    -- no love2d equivalent
+    return false
+end
+
+function system.set_cursor(cursor)
+    if cursor == nil then cursor = 'arrow' end
+    if cursor == 'sizeh' then cursor = 'sizewe' end
+    if cursor == 'sizev' then cursor = 'sizens' end
+    love.mouse.setCursor(love.mouse.getSystemCursor(cursor))
+end
+
+function system.set_window_title(title)
+    love.window.setTitle(title)
+end
+
+function system.set_window_mode(mode)
+    love.window.setFullscreen(mode == 'fullscreen')
+    if mode == nil or mode == 'normal' then love.window.restore() end
+    if mode == 'maximized' then love.window.maximize() end
+end
+
+function system.window_has_focus()
+    return love.window.hasFocus()
+end
+
+function system.show_confirm_dialog(title, msg)
+    return love.window.showMessageBox(title, message, { 'Yes', 'No', escapebutton = 2 }, 'warning') == 1
+end
+
+function system.chdir(dir)
+    -- not possible with love2d
+end
+
+function system.list_dir(path)
+    if path == '.' then path = '' end
+    local info = love.filesystem.getInfo(path)
+    if info and info.type == 'directory' then
+        return love.filesystem.getDirectoryItems(path)
+    end
+    return nil, "Not a directory"
+end
+
+function system.absolute_path(path)
+    return path -- love.filesystem.getRealDirectory(path)
+end
+
+function system.get_file_info(path)
+    local info = love.filesystem.getInfo(path)
+    if info then
+        local type = nil
+        if info.type == 'file' then
+            type = 'file'
+        elseif info.type == 'directory' then
+            type = 'dir'
+        end
+        return {
+            modified = info.modtime,
+            size = info.size,
+            type = type
+        }
+    else
+        return nil, "Doesn't exist"
+    end
+end
+
+function system.get_clipboard()
+    return love.system.getClipboardText()
+end
+
+function system.set_clipboard(text)
+    love.system.setClipboardText(text)
+end
+
+function system.get_time()
+    return love.timer.getTime()
+end
+
+function system.sleep(s)
+    love.timer.sleep(s)
+end
+
+function system.exec(cmd)
+    -- ehhhh todo I guess
+end
+
+function system.fuzzy_match(str, ptn)
+    local istr = 1
+    local iptn = 1
+    local score = 0
+    local run = 0
+    while istr <= str:len() and iptn <= ptn:len() do
+        while str:sub(istr,istr) == ' ' do istr = istr + 1 end
+        while ptn:sub(iptn,iptn) == ' ' do iptn = iptn + 1 end
+        local cstr = str:sub(istr,istr)
+        local cptn = ptn:sub(iptn,iptn)
+        if cstr:lower() == cptn:lower() then
+            score = score + (run * 10)
+            if cstr ~= cptn then score = score - 1 end
+            istr = istr + 1
+            iptn = iptn + 1
+        else
+            score = score - 10
+            run = 0
+        end
+        istr = istr + 1
+    end
+    if iptn > ptn:len() then
+        return score - str:len() + istr - 1
+    end
+end
+
+table.unpack = unpack
+
+core = ""
+function love.run()
+    ARGS = love.arg.parseGameArguments(arg)
+    VERSION = "1.11"
+    PLATFORM = "love2d"
+    SCALE = love.graphics.getDPIScale()
+    EXEDIR = ""
+    PATHSEP = package.config:sub(1, 1)
+    love.filesystem.mount(love.filesystem.getSourceBaseDirectory(), love.filesystem.getSourceBaseDirectory())
+    package.path = love.filesystem.getWorkingDirectory() .. '/data/?.lua;' .. love.filesystem.getWorkingDirectory() .. '/data/?/init.lua;' .. package.path
+    core = require('core')
+    local style = require('core.style')
+    style.code_font = renderer.font.load(EXEDIR .. "/data/fonts/monospace.ttf", 15 * SCALE)
+    core.init()
+    return core.run
+end