新增一个简易秒表小程序

parts/scenes/app_console.lua

@@ -647,6 +647,11 @@ local commands={}do
                 scene='app_triple',
                 description="A Match-3 Game. Original idea from Sanlitun / Triple Town"
             },
+            {
+                code="sw",
+                scene='app_stopwatch',
+                description="A stopwatch"
+            },
             {
                 code="spin",
                 scene='app_spin',

parts/scenes/app_stopwatch.lua

@@ -0,0 +1,70 @@
+local state
+local pressTime
+local releaseTime
+local time1,time2
+
+local function press()
+    if state==0 then
+        state=1
+        pressTime=TIME()
+        releaseTime=false
+        time2=STRING.time(0)
+    elseif state==2 then
+        state=0
+    end
+end
+
+local function release()
+    if state==1 then
+        state=2
+        releaseTime=TIME()
+    end
+end
+
+local scene={}
+
+function scene.sceneInit()
+    state=0
+    time1=STRING.time(0)
+    time2=STRING.time(0)
+end
+
+function scene.mouseDown()
+    press()
+end
+function scene.mouseUp()
+    release()
+end
+function scene.keyDown(key,isRep)
+    if isRep then return end
+    if key=='escape'then
+        SCN.back()
+    else
+        press()
+    end
+end
+function scene.keyUp()
+    release()
+end
+
+function scene.update()
+    if state~=0 then
+        time1=STRING.time(TIME()-pressTime)
+        if releaseTime then
+            time2=STRING.time(TIME()-releaseTime)
+        end
+    end
+end
+
+function scene.draw()
+    FONT.set(60)
+    mStr(CHAR.icon.import,340,230)
+    mStr(CHAR.icon.export,940,230)
+    mStr(time1,340,300)
+    mStr(time2,940,300)
+end
+
+scene.widgetList={
+    WIDGET.newButton{name="back", x=1140,y=640,w=170,h=80,font=60,fText=CHAR.icon.back,code=backScene},
+}
+return scene