1 files changed, 132 insertions, 0 deletions
diff --git a/src/lua/embed/boot.lua b/src/lua/embed/boot.lua
new file mode 100644
index 0000000..2f6fa93
--- /dev/null
+++ b/src/lua/embed/boot.lua
@@ -0,0 +1,132 @@
+--[[ 
+    program entry
+]]  
+
+local function _onEvent(e) 
+    -- update keyboard status 
+    if e.type == "keydown" then 
+        jin.keyboard.set(e.key, true) 
+    elseif e.type == "keyup" then 
+        jin.keyboard.set(e.key, false)
+    end 
+
+    -- call user onEvent function 
+    if jin.core.onEvent then 
+        jin.core.onEvent(e) 
+    end
+end 
+
+-------------------------------------------------
+-- init file system 
+-------------------------------------------------
+jin._argv[2] = jin._argv[2] or '.'
+jin.filesystem.init()
+jin.filesystem.mount(jin._argv[2])
+
+-- config
+local conf = {} 
+if jin.filesystem.exist("config.lua") then 
+    conf = require "config"    
+end 
+conf.width = conf.width or 600 
+conf.height = conf.height or 500 
+conf.fps = conf.fps or 60
+conf.title = conf.title or ("jin v" .. jin.version())
+
+-- init video subsystem 
+jin.graphics.init(conf.width,conf.height,conf.title)
+
+-- open debug mode, must after jin.graphics.init
+if jin._argv[3] == '-d' then 
+    jin.debug.init()
+end
+
+function jin.core.run()
+    local now = jin.time.second()
+    local last = now
+    local fsec = 1/conf.fps
+    -- for loading resources
+    if jin.core.load then 
+        jin.core.load() 
+    end
+    local dt = 0
+    while(jin.core.running()) do
+        -- frame controle
+        last = now
+        now = jin.time.second()
+        if (now - last) < fsec then 
+            jin.time.sleep(fsec - now + last)
+        end
+
+        -- handle events     
+        for _, e in pairs(jin.event.poll()) do 
+            if _onEvent then
+                _onEvent(e)
+            end
+        end
+
+        -- update
+        dt = now - last
+        if dt < fsec then 
+            dt = fsec 
+        end
+        if jin.core.onUpdate then
+            jin.core.onUpdate(dt)
+        end
+        
+        -- bind to default render buffer 
+        jin.graphics.bind() 
+        jin.graphics.clear() 
+        jin.graphics.color()
+        jin.graphics.study()
+
+        -- custom drawing
+        if jin.core.onDraw then 
+            jin.core.onDraw() 
+        end
+        
+        -- render debug window
+        if jin.debug.status() then 
+            jin.debug.render()
+        end         
+
+        -- swap window buffer 
+        jin.graphics.present()
+
+    end
+end
+
+local function onError(msg) 
+    local tab = '    '
+    print("Error:\n" .. msg)
+    function jin.core.onEvent(e) 
+        if e.type == 'quit' then 
+            jin.core.quit()
+        end
+    end
+    local ww, wh = jin.graphics.size() 
+    function jin.core.onDraw() 
+        jin.graphics.write("Error: ", 10, 10, 30, 3, 30)
+        jin.graphics.write(msg, 10, 50) 
+    end
+end
+
+if jin.filesystem.exist("main.lua") then 
+    -- require main game script
+    xpcall(function() require"main" end, onError)
+    jin.core.run()
+else 
+    -- no game 
+    function jin.core.onEvent(e) 
+        if e.type == 'quit' then 
+            jin.core.quit()
+        end
+    end
+    function jin.core.onDraw() 
+        jin.graphics.clear(111, 134, 125, 255) 
+        local ww, wh = jin.graphics.size() 
+        local fw, fh = jin.graphics.box("no game", 20, 1, 20)
+        jin.graphics.write("no game", ww /2 - fw / 2, wh * 2/3, 16, 1, 18)
+    end
+    jin.core.run()
+end