From e6e3c76c1f2829537d368501a74af0646f5559d4 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Fri, 24 Aug 2018 19:03:02 +0800
Subject: *update

---
 src/lua/modules/embed/boot.lua.h | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

(limited to 'src/lua/modules/embed/boot.lua.h')

diff --git a/src/lua/modules/embed/boot.lua.h b/src/lua/modules/embed/boot.lua.h
index d84ca21..4f8ed94 100644
--- a/src/lua/modules/embed/boot.lua.h
+++ b/src/lua/modules/embed/boot.lua.h
@@ -14,10 +14,11 @@ if jin.filesystem.exist("config.lua") then
 end
 jin.config.width      = jin.config.width      or 576 
 jin.config.height     = jin.config.height     or 448 
-jin.config.vsync      = jin.config.vsync      or false
+jin.config.vsync      = jin.config.vsync      or true
 jin.config.title      = jin.config.title      or ("jin v" .. jin.version())
 jin.config.resizable  = jin.config.resizable  or false 
 jin.config.fullscreen = jin.config.fullscreen or false
+jin.config.fps	      = jin.config.fps		  or 60
 
 -------------------------------------------------------------------------
 -- Initialize sub systems
@@ -51,6 +52,7 @@ function jin.core.run()
     local dt = 0
     local previous = jin.time.second()
 	local current = previous
+	local SECOND_PER_FRAME = 1/jin.config.fps
     while jin.core.running() do
         for _, e in pairs(jin.event.poll()) do 
             if e.type == "keydown" then 
@@ -60,25 +62,23 @@ function jin.core.run()
             end
             call(jin.core.onEvent, e)
         end
-
 		previous = current
         current = jin.time.second() 
-        dt = current - previous
-
-        call(jin.core.onUpdate, dt)
-
-		if jin.graphics then 
-			jin.graphics.unbindCanvas() 
+        dt = dt + current - previous
+		local refresh = false
+		while dt > SECOND_PER_FRAME do 
+	        call(jin.core.onUpdate, SECOND_PER_FRAME)
+			dt = dt - SECOND_PER_FRAME
+			refresh = true
+		end 
+		if refresh and jin.graphics then 
 			jin.graphics.clear() 
-			jin.graphics.setColor()
-			jin.graphics.setFont()
 			call(jin.core.onDraw)
 			jin.graphics.present()
-		end		
-		
+		end 
 		if jin.time then 
 			jin.time.sleep(0.001)
-		end		
+		end
     end
 end
 
-- 
cgit v1.1-26-g67d0