游戏界面的提示帮助（根据鼠标点击选取显示位置）

--显示提示 文字组 和目标点坐标

--tipsArr为要显示的内容 逐条\n换行如截图

function LuaCUIFunctionHelp.ShowFunctionHelp(tipsArr)
    if #(tipsArr) == 0 then
        return;
    end
    LuaCUIFunctionHelp.ShowUI();
    --合成要输出的内容 逐条换行
    local strCommonText = "";
    local scrollText = m_gameObject.transform:FindChild("imgback/Viewport/Content/scroll");     --界面内容框
    if (scrollText ~= nil) then
        local textComponent = scrollText.gameObject:GetComponent("Text");
        if textComponent ~= nil then
            for i = 1,#(tipsArr) do
                
                strCommonText = strCommonText  .. tipsArr[i].. "\n";
            end
            
            textComponent.text = strCommonText;
        end
    end
    --设置提示框的长度
    local m_nHeight = 0;
    local m_nWidth = 0;
    local scrollText = m_gameObject.transform:FindChild("imgback/Viewport/Content/scroll");
    local rectScrollSize = scrollText.gameObject:GetComponent("Text").preferredHeight;
    if rectScrollSize ~= nil then
        rectScrollSizeHeight = rectScrollSize.preferredHeight;
    end
    if rectScrollSizeHeight <= 300 then
        m_nHeight = rectScrollSizeHeight + 20;
        m_nWidth = 290;
    else
        m_nHeight = 300;
        m_nWidth = 290;
    end
    --设置背景高度和宽度
    LuaCUIFunctionHelp.SetBackSize(m_nWidth,m_nHeight);
    --设置帮助界面的坐标
    local tipsRect = m_gameObject:GetComponent("RectTransform");
    if(tipsRect ~= nil) then
        tipsRect.sizeDelta = UnityEngine.Vector2.New( math.abs(m_nWidth), math.abs(m_nHeight));
        local nPosX = 0;
        if(UnityEngine.Input.mousePosition.x + tipsRect.rect.width + 30 >= UnityEngine.Screen.width) then
            nPosX = UnityEngine.Input.mousePosition.x - 10;
        else 
            nPosX = UnityEngine.Input.mousePosition.x;
        end
        local nPosY = 0;
        if(UnityEngine.Input.mousePosition.y - tipsRect.rect.height + 30 <= 0) then
            nPosY = tipsRect.rect.height + 30;
        else
            nPosY = UnityEngine.Input.mousePosition.y - 10;
        end
        tipsRect.anchoredPosition = UnityEngine.Vector2.New(nPosX, nPosY);
    end
end
--设置背景高度和宽度
function LuaCUIFunctionHelp.SetBackSize(lWidth,lHeight)
    local mBack = m_gameObject.transform:FindChild("imgback").gameObject;
if(mBack ~= nil) then
        local rectTransform = mBack.gameObject:GetComponent("RectTransform");
        if(rectTransform ~= nil) then
            rectTransform.sizeDelta = Vector2.New(lWidth, lHeight);
        end
    end
end