void Start()
{
tower = null;
buildplace = null;
s_clickdmgbtn = upgdmgobj.GetComponent <clickdmgbtn>();
s_clickspdbtn = upgspdobj.GetComponent <clickspdbtn>();
s_clickrngbtn = upgrngobj.GetComponent <clickrngbtn>();
s_clicksellbtn = sellobj.GetComponent <clicksellbtn>();
s_clickcanclebtn = cancleobj.GetComponent <clickcanclebtn>();
upgcanvas.GetComponent <Canvas>().enabled = false;
upgcanvas2.GetComponent <Canvas>().enabled = false;
s_buildtower1 = buildtowerobj1.GetComponent <buildtower1>();
s_buildtower2 = buildtowerobj2.GetComponent <buildtower2>();
s_buildtower3 = buildtowerobj3.GetComponent <buildtower3>();
}
void Start()
{
tower = null;
buildplace = null;
s_clickdmgbtn = upgdmgobj.GetComponent<clickdmgbtn>();
s_clickspdbtn = upgspdobj.GetComponent<clickspdbtn>();
s_clickrngbtn = upgrngobj.GetComponent<clickrngbtn>();
s_clicksellbtn = sellobj.GetComponent<clicksellbtn>();
s_clickcanclebtn = cancleobj.GetComponent<clickcanclebtn>();
upgcanvas.GetComponent<Canvas>().enabled = false;
upgcanvas2.GetComponent<Canvas>().enabled = false;
s_buildtower1 = buildtowerobj1.GetComponent<buildtower1>();
s_buildtower2 = buildtowerobj2.GetComponent<buildtower2>();
s_buildtower3 = buildtowerobj3.GetComponent<buildtower3>();
}