pc_tiantian/Editor/CCBoxNode.lua

-- 画鼠标框选的时候那个白框
cc.BoxNode = {

}

function cc.BoxNode:create()
	local glNode  = gl.glNodeCreate()
	glNode:setAnchorPoint(cc.p(0.5, 0.5))

	local function primitivesDraw(transform, transformUpdated)
		-- 绑定相机、世界矩阵
		cc.DrawPrimitives.setCamera(cc.Director:getInstance():getFixedCamera());
		cc.DrawPrimitives.setWorldTransform(cc.Mat4:identity());

		-- 画矩形
		gl.lineWidth( 1 )
		cc.DrawPrimitives.drawColor4B(255, 255, 255, 255)
		cc.DrawPrimitives.drawRect(glNode.startPos, glNode.endPos)

		-- 状态恢复
		gl.lineWidth(1)
		cc.DrawPrimitives.drawColor4B(255,255,255,255)
		cc.DrawPrimitives.setPointSize(1)
	end

	glNode:registerScriptDrawHandler(primitivesDraw)

	return glNode
end