爱好玩

来自于CocosCodeIDE技术交流群”文件夹”同学

function darkNode(node)


 local vertDefaultSource = "n"..
                           "attribute vec4 a_position; n" ..
                           "attribute vec2 a_texCoord; n" ..
                           "attribute vec4 a_color; n"..                                                    
                           "#ifdef GL_ES  n"..
                           "varying lowp vec4 v_fragmentColor;n"..
                           "varying mediump vec2 v_texCoord;n"..
                           "#else                      n" ..
                           "varying vec4 v_fragmentColor; n" ..
                           "varying vec2 v_texCoord;  n"..
                           "#endif    n"..
                           "void main() n"..
                           "{n" ..
                            "gl_Position = CC_PMatrix * a_position; n"..
                           "v_fragmentColor = a_color;n"..
                           "v_texCoord = a_texCoord;n"..
                           "}"
        
    local pszFragSource = "#ifdef GL_ES n" ..
                          "precision mediump float; n" ..
                            "#endif n" ..
                            "varying vec4 v_fragmentColor; n" ..
                            "varying vec2 v_texCoord; n" ..
                            "void main(void) n" ..
                            "{ n" ..
                             "vec4 c = texture2D(CC_Texture0, v_texCoord); n" ..
                            "gl_FragColor.xyz = vec3(0.4*c.r + 0.4*c.g +0.4*c.b); n"..
                            "gl_FragColor.w = c.w; n"..
                            "}"

    local pProgram = cc.GLProgram:createWithByteArrays(vertDefaultSource,pszFragSource)
    
    pProgram:bindAttribLocation(cc.ATTRIBUTE_NAME_POSITION,cc.VERTEX_ATTRIB_POSITION)
    pProgram:bindAttribLocation(cc.ATTRIBUTE_NAME_COLOR,cc.VERTEX_ATTRIB_COLOR)
    pProgram:bindAttribLocation(cc.ATTRIBUTE_NAME_TEX_COORD,cc.VERTEX_ATTRIB_FLAG_TEX_COORDS)
    pProgram:link()
    pProgram:updateUniforms()
    node:setGLProgram(pProgram)
    
end

function darkNode(node)

local vertDefaultSource = "n"..

"attribute vec4 a_position; n" ..

"attribute vec2 a_texCoord; n" ..

"attribute vec4 a_color; n"..

"#ifdef GL_ES n"..

"varying lowp vec4 v_fragmentColor;n"..

"varying mediump vec2 v_texCoord;n"..

"#else n" ..

"varying vec4 v_fragmentColor; n" ..

"varying vec2 v_texCoord; n"..

"#endif n"..

"void main() n"..

"{n" ..

"gl_Position = CC_PMatrix * a_position; n"..

"v_fragmentColor = a_color;n"..

"v_texCoord = a_texCoord;n"..

"}"

local pszFragSource = "#ifdef GL_ES n" ..

"precision mediump float; n" ..

"#endif n" ..

"varying vec4 v_fragmentColor; n" ..

"varying vec2 v_texCoord; n" ..

"void main(void) n" ..

"{ n" ..

"vec4 c = texture2D(CC_Texture0, v_texCoord); n" ..

"gl_FragColor.xyz = vec3(0.4*c.r + 0.4*c.g +0.4*c.b); n"..

"gl_FragColor.w = c.w; n"..

"}"

local pProgram = cc.GLProgram:createWithByteArrays(vertDefaultSource,pszFragSource)

pProgram:bindAttribLocation(cc.ATTRIBUTE_NAME_POSITION,cc.VERTEX_ATTRIB_POSITION)

pProgram:bindAttribLocation(cc.ATTRIBUTE_NAME_COLOR,cc.VERTEX_ATTRIB_COLOR)

pProgram:bindAttribLocation(cc.ATTRIBUTE_NAME_TEX_COORD,cc.VERTEX_ATTRIB_FLAG_TEX_COORDS)

pProgram:link()

pProgram:updateUniforms()

node:setGLProgram(pProgram)

end

这个需求来自于工作中的一个需求

两个城池之间的路径是美术事先画好的,武将需要沿着画好的曲线行进

经过查找资料,发现了这篇文章

用到了下面这个公式：
阶贝塞尔曲线可如下推断。给定点P0、P1、…、Pn，其贝塞尔曲线即
$贝塞尔曲线公式$ 高阶曲线为建构高阶曲线，便需要相应更多的中介点。对于三次曲线，可由线性贝塞尔曲线描述的中介点Q0、Q1、Q2，和由二次曲线描述的点R0、R1所建构：
三次贝塞尔曲线

对于四次曲线，可由线性贝塞尔曲线描述的中介点Q0、Q1、Q2、Q3，由二次贝塞尔曲线描述的点R0、R1、R2，和由三次贝塞尔曲线描述的点S0、S1所建构：
四次贝塞尔曲线

更复杂的:
五次贝塞尔曲线

参考资料

以下为lua的实现方式,参考了上文中的c++算法,并没有考虑在极为高阶的情况下的性能问题

代码基于quick-cocos2d-x 2.2.5编写(谁叫他快呢)

--
-- Author: superyyl
-- Date: 2014-08-22 17:31:48
--
tool = {}


-- float to int
function tool.toint(n)
    local s = tostring(n)
    local i, j = s:find('%.')
    if i then
        return tonumber(s:sub(1, i-1))
    else
        return n
    end
end

-- 获取在ccnode屏幕的位置
function tool.getPositionInScreen(node)
    if not node then
        return 0,0
    end

    local x,y = node:getPosition()
    local parent = node:getParent()

    while parent do
       local px,py = parent:getPosition()
       if not parent:isIgnoreAnchorPointForPosition() then
           local anchorPoint = parent:getAnchorPointInPoints()
           px = px - anchorPoint.x
           py = py - anchorPoint.y
       end

        x =x + px
        y = y + py
       parent = parent:getParent()
    end

    return x, y
end

-- 检查触摸x,y是否在摸个node上
function tool.checkIfTouch(sprite, x, y)
    if not sprite then
        return false
    end

    local px, py = tool.getPositionInScreen(sprite)
    local anchorPoint = sprite:getAnchorPointInPoints()
    local px = px - anchorPoint.x
    local py = py - anchorPoint.y
    local w = sprite:getContentSize().width
    local h  = sprite:getContentSize().height
    local boundingBox = CCRect:new(px,py,w,h)
    if boundingBox:containsPoint(ccp(x,y)) then
        return true
    else
        return false
    end
end

--阶乘
function factorial(n)
    local result = 1
    for i=1,n,1 do
        result = result * i
    end
    return result
end

--杨辉三角
function pascalTriangleRatio(n,i)
    return factorial(n)/(factorial(i)*factorial(n-i))
end

--x的y次幂
function powf(x,y)
    if y == 0 then return 1 end
    local result = 1
    for i=1,y,1 do
        result = result * x
    end
    return result
end

--贝塞尔
--[[
    @param p 控制点table
    @param t
]]
function bezieerat(p,t)
    local px,py = 0,0
    local n = #p - 1
    for i=0,n do
        local ratio = pascalTriangleRatio(n,i)
        px = px + ratio * p[i+1].x * powf(t,i) * powf(1-t, n-i)
        py = py + ratio * p[i+1].y * powf(t,i) * powf(1-t, n-i)
    end
    return ccp(px,py)
end

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-- Author: superyyl

-- Date: 2014-08-22 17:31:48

tool = {}

-- float to int

function tool.toint(n)

local s = tostring(n)

local i, j = s:find('%.')

if i then

return tonumber(s:sub(1, i-1))

else

return n

end

-- 获取在ccnode屏幕的位置

function tool.getPositionInScreen(node)

if not node then

return 0,0

end

local x,y = node:getPosition()

local parent = node:getParent()

while parent do

local px,py = parent:getPosition()

if not parent:isIgnoreAnchorPointForPosition() then

local anchorPoint = parent:getAnchorPointInPoints()

px = px - anchorPoint.x

py = py - anchorPoint.y

end

x =x + px

y = y + py

parent = parent:getParent()

end

return x, y

end

-- 检查触摸x,y是否在摸个node上

function tool.checkIfTouch(sprite, x, y)

if not sprite then

return false

end

local px, py = tool.getPositionInScreen(sprite)

local anchorPoint = sprite:getAnchorPointInPoints()

local px = px - anchorPoint.x

local py = py - anchorPoint.y

local w = sprite:getContentSize().width

local h = sprite:getContentSize().height

local boundingBox = CCRect:new(px,py,w,h)

if boundingBox:containsPoint(ccp(x,y)) then

return true

else

return false

end

--阶乘

function factorial(n)

local result = 1

for i=1,n,1 do

result = result * i

end

return result

end

--杨辉三角

function pascalTriangleRatio(n,i)

return factorial(n)/(factorial(i)*factorial(n-i))

end

--x的y次幂

function powf(x,y)

if y == 0 then return 1 end

local result = 1

for i=1,y,1 do

result = result * x

end

return result

end

--贝塞尔

--[[

@param p 控制点table

@param t

]]

function bezieerat(p,t)

local px,py = 0,0

local n = #p - 1

for i=0,n do

local ratio = pascalTriangleRatio(n,i)

px = px + ratio * p[i+1].x * powf(t,i) * powf(1-t, n-i)

py = py + ratio * p[i+1].y * powf(t,i) * powf(1-t, n-i)

end

return ccp(px,py)

end

--
-- Author: superyyl
-- Date: 2014-08-27 11:44:08
--
local General = class("General",function()
	return display.newSprite("res/ui/circle.png")
end)

General.STATE = {
	IDLE = 0,
	MOVE = 1
}

function General:ctor()
	self:registerScriptHandler(function(e)
		if e == "enter" then
			self:onEnter()
		elseif e == "exit" then
			self:onExit()
		end
	end)
	self.state = General.STATE.IDLE
end

function General:startAction(p,t)
	self.controlPos = {}
	self.totalTime = t
	self.state = General.STATE.MOVE

	for idx,pos in pairs(p) do
		local newPos = ccp(pos.x,pos.y)
		self.controlPos[#self.controlPos+1] = newPos
	end

	self.number = #self.controlPos
	self.t = 0
end

function General:update(dt)
	if self.state == General.STATE.MOVE then
		self.t = self.t + dt
		local p = bezieerat(self.controlPos, self.t/self.totalTime)
		self:setPosition(p)
		if self.t > self.totalTime then
			self.state = General.STATE.IDLE
			self:startAction(self.controlPos, self.totalTime)
		end
	end
end

function General:onEnter()
	self.updateSchedulerEntry = CCDirector:sharedDirector():getScheduler():scheduleScriptFunc(handler(self,self.update), 0, false)
end

function General:onExit()
	if self.updateSchedulerEntry then
		CCDirector:sharedDirector():getScheduler():unscheduleScriptEntry(self.updateSchedulerEntry)
	end
end

return General

-- Author: superyyl

-- Date: 2014-08-27 11:44:08

local General = class("General",function()

return display.newSprite("res/ui/circle.png")

end)

General.STATE = {

IDLE = 0,

MOVE = 1

}

function General:ctor()

self:registerScriptHandler(function(e)

if e == "enter" then

self:onEnter()

elseif e == "exit" then

self:onExit()

end

end)

self.state = General.STATE.IDLE

end

function General:startAction(p,t)

self.controlPos = {}

self.totalTime = t

self.state = General.STATE.MOVE

for idx,pos in pairs(p) do

local newPos = ccp(pos.x,pos.y)

self.controlPos[#self.controlPos+1] = newPos

end

self.number = #self.controlPos

self.t = 0

end

function General:update(dt)

if self.state == General.STATE.MOVE then

self.t = self.t + dt

local p = bezieerat(self.controlPos, self.t/self.totalTime)

self:setPosition(p)

if self.t > self.totalTime then

self.state = General.STATE.IDLE

self:startAction(self.controlPos, self.totalTime)

end

function General:onEnter()

self.updateSchedulerEntry = CCDirector:sharedDirector():getScheduler():scheduleScriptFunc(handler(self,self.update), 0, false)

end

function General:onExit()

if self.updateSchedulerEntry then

CCDirector:sharedDirector():getScheduler():unscheduleScriptEntry(self.updateSchedulerEntry)

end

return General

--
-- Author: superyyl
-- Date: 2014-08-27 10:20:02
--
local TestScene = class("TestScene", function()
	return display.newScene("TestScene")
end)

function TestScene:ctor()
	
	self.layer = CCLayerColor:create(ccc4(255, 255, 255, 255))
	self:addChild(self.layer)

	self.pos = {}
	self.points = {}

	self.layer:registerScriptTouchHandler(handler(self,self.onTouch), false)
	self.layer:setTouchEnabled(true)

	local delete = CCControlButton:create(
		CCLabelTTF:create("删除最后一个节点", "Thonburi", 24),
		CCScale9Sprite:create("res/ui/btn_default_normal.png")
	)
	delete:setPreferredSize(CCSize(200, 80))
	delete:setPosition(120,display.height-60)
	delete:addHandleOfControlEvent(
		handler(self,self.onDeleteClick),
		CCControlEventTouchUpInside
	)
	self:addChild(delete)


end

function TestScene:onDeleteClick()
	table.remove(self.pos,#self.pos)
	self:refresh()
end

function TestScene:onTouch(e,x,y)
	if e == "began" then
		self.touchLocation = ccp(x,y)
		self.dragPoint = nil
		self.dragIndex = nil
		for idx,point in pairs(self.points) do
			if tool.checkIfTouch(point,x,y) then
				self.dragPoint = point
				self.dragIndex = idx
				print("self.dragIndex",self.dragIndex)
			end
		end
		return true
	elseif e == "moved" then
		if self.dragPoint then
			local sprite = self.dragPoint
			local pos = ccp(sprite:getPositionX()+x-self.touchLocation.x,sprite:getPositionY()+y-self.touchLocation.y)
			self.dragPoint:setPosition(pos)
			self.touchLocation = ccp(x,y)
		end
	elseif e == "ended" then
		if self.dragPoint then
			self.pos[self.dragIndex] = ccp(x,y)
			self.dragPoint = nil
			self.dragIndex = nil
			
			self:refresh()
		else
			local pos = ccp(x,y)
			local distance = ccpDistance(self.touchLocation, pos)
			if distance < 25 then
				self.pos[#self.pos+1] = pos
			end
			self:refresh()
		end
	end
end

function TestScene:refresh()
	self.layer:removeAllChildrenWithCleanup(true)
	self.points = {}
	for i,pos in pairs(self.pos) do
		local point = CCSprite:create("res/ui/point.png")
		point:setPosition(pos)
		self.layer:addChild(point)
		local label = CCLabelTTF:create(tostring(i), "Thonburi", 20)
		label:setColor(ccc3(0, 0, 0))
		label:setPosition(point:getContentSize().width/2,point:getContentSize().height+10)
		point:addChild(label)
		self.points[#self.points+1] = point
	end

	if #self.pos > 1 then
		self.general = require("app.models.General").new()
		self.general:setPosition(self.pos[1])
		self.layer:addChild(self.general)
		self.general:startAction(self.pos, 4)



		local controlPos = {}
		for idx,pos in pairs(self.pos) do
			local newPos = ccp(pos.x,pos.y)
			controlPos[#controlPos+1] = newPos
		end


		local node = CCDrawNode:create()
		self.layer:addChild(node)

		local tracePoints = {}
		for t=0,1,0.001 do
			local point = bezieerat(controlPos, t)
			node:drawDot(point, 2, ccc4f(0, 255, 0, 128))
			tracePoints[#tracePoints+1] = {}
			tracePoints[#tracePoints].point = point
			tracePoints[#tracePoints].percent = t
		end

		local distance = 0
		for i=1,#tracePoints-1,1 do
			local p1 = tracePoints[i]
			local p2 = tracePoints[i+1]
			local d = ccpDistance(p1.point, p2.point)
			distance = distance + d
		end

		local len = 30
		local pointInfo = {}
		local count = tool.toint(distance / len)
		local mod = distance % len
		len = len + mod / count

		pointInfo[1] = tracePoints[1]
		local remain = len
		for i=1,#tracePoints-1,1 do
			local p1 = tracePoints[i]
			local p2 = tracePoints[i+1]
			local d = ccpDistance(p1.point, p2.point)
			remain = remain - d
			if remain <= 0 then
				pointInfo[#pointInfo+1] = p2
				remain = remain + len
			end
		end

		for idx,p in pairs(pointInfo) do
			local point = CCSprite:create("res/ui/trace.png")
			point:setPosition(p.point)
			print("percent:"..p.percent)
			self.layer:addChild(point)
		end


		print(string.format("长度:%s#%s#%s#%s",distance,count,mod,len))

	end
end

return TestScene

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-- Author: superyyl

-- Date: 2014-08-27 10:20:02

local TestScene = class("TestScene", function()

return display.newScene("TestScene")

end)

function TestScene:ctor()

self.layer = CCLayerColor:create(ccc4(255, 255, 255, 255))

self:addChild(self.layer)

self.pos = {}

self.points = {}

self.layer:registerScriptTouchHandler(handler(self,self.onTouch), false)

self.layer:setTouchEnabled(true)

local delete = CCControlButton:create(

CCLabelTTF:create("删除最后一个节点", "Thonburi", 24),

CCScale9Sprite:create("res/ui/btn_default_normal.png")

)

delete:setPreferredSize(CCSize(200, 80))

delete:setPosition(120,display.height-60)

delete:addHandleOfControlEvent(

handler(self,self.onDeleteClick),

CCControlEventTouchUpInside

)

self:addChild(delete)

end

function TestScene:onDeleteClick()

table.remove(self.pos,#self.pos)

self:refresh()

end

function TestScene:onTouch(e,x,y)

if e == "began" then

self.touchLocation = ccp(x,y)

self.dragPoint = nil

self.dragIndex = nil

for idx,point in pairs(self.points) do

if tool.checkIfTouch(point,x,y) then

self.dragPoint = point

self.dragIndex = idx

print("self.dragIndex",self.dragIndex)

end

return true

elseif e == "moved" then

if self.dragPoint then

local sprite = self.dragPoint

local pos = ccp(sprite:getPositionX()+x-self.touchLocation.x,sprite:getPositionY()+y-self.touchLocation.y)

self.dragPoint:setPosition(pos)

self.touchLocation = ccp(x,y)

end

elseif e == "ended" then

if self.dragPoint then

self.pos[self.dragIndex] = ccp(x,y)

self.dragPoint = nil

self.dragIndex = nil

self:refresh()

else

local pos = ccp(x,y)

local distance = ccpDistance(self.touchLocation, pos)

if distance < 25 then

self.pos[#self.pos+1] = pos

end

self:refresh()

end

function TestScene:refresh()

self.layer:removeAllChildrenWithCleanup(true)

self.points = {}

for i,pos in pairs(self.pos) do

local point = CCSprite:create("res/ui/point.png")

point:setPosition(pos)

self.layer:addChild(point)

local label = CCLabelTTF:create(tostring(i), "Thonburi", 20)

label:setColor(ccc3(0, 0, 0))

label:setPosition(point:getContentSize().width/2,point:getContentSize().height+10)

point:addChild(label)

self.points[#self.points+1] = point

end

if #self.pos > 1 then

self.general = require("app.models.General").new()

self.general:setPosition(self.pos[1])

self.layer:addChild(self.general)

self.general:startAction(self.pos, 4)

local controlPos = {}

for idx,pos in pairs(self.pos) do

local newPos = ccp(pos.x,pos.y)

controlPos[#controlPos+1] = newPos

end

local node = CCDrawNode:create()

self.layer:addChild(node)

local tracePoints = {}

for t=0,1,0.001 do

local point = bezieerat(controlPos, t)

node:drawDot(point, 2, ccc4f(0, 255, 0, 128))

tracePoints[#tracePoints+1] = {}

tracePoints[#tracePoints].point = point

tracePoints[#tracePoints].percent = t

end

local distance = 0

for i=1,#tracePoints-1,1 do

local p1 = tracePoints[i]

local p2 = tracePoints[i+1]

local d = ccpDistance(p1.point, p2.point)

distance = distance + d

end

local len = 30

local pointInfo = {}

local count = tool.toint(distance / len)

local mod = distance % len

len = len + mod / count

pointInfo[1] = tracePoints[1]

local remain = len

for i=1,#tracePoints-1,1 do

local p1 = tracePoints[i]

local p2 = tracePoints[i+1]

local d = ccpDistance(p1.point, p2.point)

remain = remain - d

if remain <= 0 then

pointInfo[#pointInfo+1] = p2

remain = remain + len

end

for idx,p in pairs(pointInfo) do

local point = CCSprite:create("res/ui/trace.png")

point:setPosition(p.point)

print("percent:"..p.percent)

self.layer:addChild(point)

end

print(string.format("长度:%s#%s#%s#%s",distance,count,mod,len))

end

return TestScene

最后放一张效果图

这个问题一开始困扰了我一段时间

原因是Swift继承@protocol的时候颜色会和Swift里NSObjectProtocol的颜色不一样

我以为不能继承了

首先在Bridge-Header.h里(没有的话,创建一个Objective-C的类,会提示创建,再删除OC的类就可以了)

#import "WeiboSDK.h"

1	#import "WeiboSDK.h"

然后在Swift里就能正确出现代码提示了

继承protocol这么写

class AppDelegate: UIResponder, UIApplicationDelegate,WeiboSDKDelegate

1	class AppDelegate: UIResponder, UIApplicationDelegate,WeiboSDKDelegate

注意一点,要把实现也写上,否则Swift编译是不通过的

根据OC版本的SDK,翻译成Swift

    func application(application: UIApplication!, didFinishLaunchingWithOptions launchOptions: NSDictionary!) -> Bool {
        // Override point for customization after application launch.
        WeiboSDK.enableDebugMode(true);
        WeiboSDK.registerApp(APPID);
        return true
    }
    
    func application(application: UIApplication, openURL url: NSURL, sourceApplication: String, annotation: AnyObject?) -> Bool {
        return WeiboSDK.handleOpenURL(url, delegate: self)
    }
    
    func didReceiveWeiboRequest(request: WBBaseRequest!) {
        if (request.isKindOfClass(WBProvideMessageForWeiboRequest)) {
            //TODO: sth
        }
    }

    func didReceiveWeiboResponse(response: WBBaseResponse!) {
        if (response.isKindOfClass(WBSendMessageToWeiboResponse)) {
            var message = "响应状态:(response.statusCode.toRaw())n响应UserInfo数据:(response.userInfo)n原请求UserInfo数据:(response.requestUserInfo)"
            var alert = UIAlertView(title: "发送结果", message: message, delegate: nil, cancelButtonTitle: "确定")
            alert.show()
        } else if (response.isKindOfClass(WBAuthorizeResponse)) {
            var message = "响应状态: (response.statusCode.toRaw())nresponse.userId: ((response as WBAuthorizeResponse).userID)nresponse.accessToken: ((response as WBAuthorizeResponse).accessToken)n响应UserInfo数据: (response.userInfo)n原请求UserInfo数据: (response.requestUserInfo)"
            var alert = UIAlertView(title: "认证结果", message: message, delegate: nil, cancelButtonTitle: "确定")
            alert.show()
        }
    }

func application(application: UIApplication!, didFinishLaunchingWithOptions launchOptions: NSDictionary!) -> Bool {

// Override point for customization after application launch.

WeiboSDK.enableDebugMode(true);

WeiboSDK.registerApp(APPID);

return true

}

func application(application: UIApplication, openURL url: NSURL, sourceApplication: String, annotation: AnyObject?) -> Bool {

return WeiboSDK.handleOpenURL(url, delegate: self)

}

func didReceiveWeiboRequest(request: WBBaseRequest!) {

if (request.isKindOfClass(WBProvideMessageForWeiboRequest)) {

//TODO: sth

}

func didReceiveWeiboResponse(response: WBBaseResponse!) {

if (response.isKindOfClass(WBSendMessageToWeiboResponse)) {

var message = "响应状态:(response.statusCode.toRaw())n响应UserInfo数据:(response.userInfo)n原请求UserInfo数据:(response.requestUserInfo)"

var alert = UIAlertView(title: "发送结果", message: message, delegate: nil, cancelButtonTitle: "确定")

alert.show()

} else if (response.isKindOfClass(WBAuthorizeResponse)) {

var message = "响应状态: (response.statusCode.toRaw())nresponse.userId: ((response as WBAuthorizeResponse).userID)nresponse.accessToken: ((response as WBAuthorizeResponse).accessToken)n响应UserInfo数据: (response.userInfo)n原请求UserInfo数据: (response.requestUserInfo)"

var alert = UIAlertView(title: "认证结果", message: message, delegate: nil, cancelButtonTitle: "确定")

alert.show()

}

最后在合适的地方调用

    // MARK: - 微博登录按钮
    @IBAction func onWeiboLoginClick(sender: AnyObject) {
        var request: WBAuthorizeRequest! = WBAuthorizeRequest.request() as WBAuthorizeRequest
        request.redirectURI = "https://api.weibo.com/oauth2/default.html"
        request.scope = "all"
        
        WeiboSDK.sendRequest(request)
    }

// MARK: - 微博登录按钮

@IBAction func onWeiboLoginClick(sender: AnyObject) {

var request: WBAuthorizeRequest! = WBAuthorizeRequest.request() as WBAuthorizeRequest

request.redirectURI = "https://api.weibo.com/oauth2/default.html"

request.scope = "all"

WeiboSDK.sendRequest(request)

}

微博SDK集成登录功能就做好了

直接上代码

let task = NSTask()
task.launchPath = "/bin/echo"
task.arguments = ["first-argument", "second-argument"]

let pipe = NSPipe()
task.standardOutput = pipe
task.launch()

let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output: String = NSString(data: data, encoding: NSUTF8StringEncoding)

print(output)

let task = NSTask()

task.launchPath = "/bin/echo"

task.arguments = ["first-argument", "second-argument"]

let pipe = NSPipe()

task.standardOutput = pipe

task.launch()

let data = pipe.fileHandleForReading.readDataToEndOfFile()

let output: String = NSString(data: data, encoding: NSUTF8StringEncoding)

print(output)

在swift里可以轻松调用objective-c的类

已经在目录下新建了一个setting.plist

let settingPath = NSBundle.mainBundle().pathForResource("setting", ofType: "plist")
let settingDict = NSDictionary(contentsOfFile: settingPath)
let namesStr = settingDict.objectForKey("lang_names")

let settingPath = NSBundle.mainBundle().pathForResource("setting", ofType: "plist")

let settingDict = NSDictionary(contentsOfFile: settingPath)

let namesStr = settingDict.objectForKey("lang_names")

svn使用广泛,但是每个目录下都放一个.svn文件夹着实让我们复制起来很蛋疼

下面这条命令可以清除所有.svn文件夹

sudo find /path/to/delete/ -name ".svn" -exec rm -rf {} ;

1	sudo find /path/to/delete/ -name ".svn" -exec rm -rf {} ;

一般情况下,我们使用sprite->getBoundingBox()->containsPoint(touchLocation)来判断是否触摸到了一个精灵.

需求是万变的,经常需求要求我们触摸时判断一个不规则图形

CCRenderTexture* render = CCRenderTexture::create(CCDirector::sharedDirector()->getWinSize().width, CCDirector::sharedDirector()->getWinSize().height);
render->begin();
sprite->visit();
GLubyte pColor[4];
glReadPixels(location.x,location.y,1,1,GL_RGBA,GL_UNSIGNED_BYTE,&pColor[0]);
if (pColor[3] != 0) {
    render->end();
    return false;
}
render->end();
return true;

CCRenderTexture* render = CCRenderTexture::create(CCDirector::sharedDirector()->getWinSize().width, CCDirector::sharedDirector()->getWinSize().height);

render->begin();

sprite->visit();

GLubyte pColor[4];

glReadPixels(location.x,location.y,1,1,GL_RGBA,GL_UNSIGNED_BYTE,&pColor[0]);

if (pColor[3] != 0) {

render->end();

return false;

}

render->end();

return true;

偶然发现了个佛祖~

                   _ooOoo_
                  o8888888o
                  88" . "88
                  (| -_- |)
                  O  =  /O
               ____/`---'____
             .'  \|     |//  `.
            /  \|||  :  |||//  
           /  _||||| -:- |||||-  
           |   | \  -  /// |   |
           | _|  ''---/''  |   |
             .-__  `-`  ___/-. /
         ___`. .'  /--.--  `. . __
      ."" '<  `.____<|>_/___.'  >'"".
     | | :  `- `.;` _ /`;.`/ - ` : | |
        `-.   _ __ /__ _/   .-` /  /
======`-.____`-.________/___.-`____.-'======
                   `=---='


^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
           佛祖保佑       永不死机
           心外无法       法外无心

_ooOoo_

o8888888o

88" . "88

(| -_- |)

O = /O

____/`---'____

.' \| |// `.

/ \||| : |||//

/ _||||| -:- |||||-

| | \ - /// | |

| _| ''---/'' | |

.-__ `-` ___/-. /

___`. .' /--.-- `. . __

."" '< `.____<|>_/___.' >'"".

| | : `- `.;` _ /`;.`/ - ` : | |

`-. _ __ /__ _/ .-` / /

======`-.____`-.________/___.-`____.-'======

`=---='

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

佛祖保佑永不死机

心外无法法外无心

把这段代码复制到/etc/motd中去,ssh登陆的时候就会显示

附上作者的github:https://github.com/abcfy2/motd

mac自带的终端配色实在是不咋地

于是网上参考加上自己习惯,以下是设置效果

首先在”终端”->”偏好设置” 设置”Homebrew”为默认

设置字体为Menlo Blod 14pt

cd ~
touch .bash_profile
vi .bash_profile

cd ~

touch .bash_profile

vi .bash_profile

然后输入

# for color
export CLICOLOR=1
# h:W u$
export PS1='[�33[01;33m]u@W$[�33[00m] '

# for color

export CLICOLOR=1

# h:W u$

export PS1='[33[01;33m]u@W$[33[00m] '

然后使配置生效

source .bash_profile

1	source .bash_profile

cocos2dx3.x中使用物理引擎还是挺方便的

世界杯期间做个接地气的

平时创建场景

local scene = cc.Scene:create()

1	local scene = cc.Scene:create()

改成

local scene = cc.Scene:createWithPhysics()

1	local scene = cc.Scene:createWithPhysics()

这样的场景就是带物理世界的场景了

设置重力

scene:getPhysicsWorld():setGravity(cc.vertex2F(0,-1000))

1	scene:getPhysicsWorld():setGravity(cc.vertex2F(0,-1000))

声明层

local layer = cc.LayerColor:create(cc.c4f(255,255,255,255))

1	local layer = cc.LayerColor:create(cc.c4f(255,255,255,255))

声明一个函数,作用是点一下屏幕在当前位置丢下一个足球

local function onTouch(touch,event)
    local location = touch:getLocation()
    local x,y = location.x,location.y
    local football = cc.Sprite:create("football.png")
    local size = football:getContentSize()
    football:setPosition(x,y)
    football:setPhysicsBody(cc.PhysicsBody:createCircle(size.width/2))
    football:getPhysicsBody():setVelocity(cc.vertex2F(0,300))
    layer:addChild(football)
end

local function onTouch(touch,event)

local location = touch:getLocation()

local x,y = location.x,location.y

local football = cc.Sprite:create("football.png")

local size = football:getContentSize()

football:setPosition(x,y)

football:setPhysicsBody(cc.PhysicsBody:createCircle(size.width/2))

football:getPhysicsBody():setVelocity(cc.vertex2F(0,300))

layer:addChild(football)

end

声明一个触摸监听器,并和层绑定

local listener = cc.EventListenerTouchOneByOne:create()
listener:registerScriptHandler(onTouch,cc.Handler.EVENT_TOUCH_BEGAN)
layer:getEventDispatcher():addEventListenerWithSceneGraphPriority(listener,layer)

local listener = cc.EventListenerTouchOneByOne:create()

listener:registerScriptHandler(onTouch,cc.Handler.EVENT_TOUCH_BEGAN)

layer:getEventDispatcher():addEventListenerWithSceneGraphPriority(listener,layer)

创建物理世界边界

local edge = cc.Node:create()
edge:setPhysicsBody(cc.PhysicsBody:createEdgeBox(visibleSize))
edge:setPosition(visibleSize.width/2,visibleSize.height/2)
layer:addChild(edge)

local edge = cc.Node:create()

edge:setPhysicsBody(cc.PhysicsBody:createEdgeBox(visibleSize))

edge:setPosition(visibleSize.width/2,visibleSize.height/2)

layer:addChild(edge)

层添加到场景里

scene:addChild(layer)

1	scene:addChild(layer)

这样就算完成了,点一下出现一个足球还会和其他足球碰撞

爱好玩

Stay Hungry, Stay Foolish.

[cocos2dx]3.x中精灵变灰的shader(lua)

[cocos2dx]任意多阶贝塞尔曲线

[Swift]集成WeiboSDK登录功能

[Swift]在Swift里执行Shell命令

[Swift]读取plist文件

[svn]Mac下删除目录下所有.svn

[cocos2dx]触摸时透明像素检测

[Linux]SSH登陆欢迎文字

[Mac]Terminal终端配色

[cocos2dx]cocos2dx3.x+lua中使用物理引擎

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