func PlayWithStack() {
L := luajit.Newstate()
defer L.Close()
L.Pushboolean(true)
L.Pushnumber(10)
L.Pushnil()
L.Pushstring("hello")
DumpLuaStack(L)
L.Pushvalue(-4)
DumpLuaStack(L)
L.Replace(3)
DumpLuaStack(L)
L.Settop(6)
DumpLuaStack(L)
L.Remove(-3)
DumpLuaStack(L)
L.Settop(-5)
DumpLuaStack(L)
}
func PlayWithGoFunction() {
L := luajit.Newstate()
defer L.Close()
L.Openlibs()
L.Loadfile("example.lua")
L.Pcall(0, 0, 0)
L.Pushfunction(summator)
L.Setglobal("summator")
L.Getglobal("print_summator")
L.Pcall(0, 0, 0)
}
func PlayWithGlobal() {
L := luajit.Newstate()
defer L.Close()
L.Openlibs()
L.Loadfile("example.lua")
L.Pcall(0, 0, 0)
L.Getglobal("width")
L.Getglobal("height")
if L.Isnumber(-2) != true {
print("width should be number\n")
}
if L.Isnumber(-1) != true {
print("height should be number\n")
}
DumpLuaStack(L)
}
func PlayWithTables() {
L := luajit.Newstate()
defer L.Close()
L.Openlibs()
L.Loadfile("example.lua")
L.Pcall(0, 0, 0)
L.Getglobal("background")
if L.Istable(-1) != true {
print("'background' is not defined in lua script")
}
DumpLuaStack(L)
red, _ := GetField(L, "r")
green, _ := GetField(L, "g")
blue, _ := GetField(L, "b")
DumpLuaStack(L)
print("background: ", red, " ", green, " ", blue, "\n")
L.Newtable()
SetField(L, "red", 50.0)
SetField(L, "green", 30.0)
SetField(L, "blue", 20.0)
L.Setglobal("foreground")
L.Getglobal("foreground")
if L.Istable(-1) != true {
print("'foreground' is not defined in lua script")
}
DumpLuaStack(L)
red, _ = GetField(L, "red")
green, _ = GetField(L, "green")
blue, _ = GetField(L, "blue")
DumpLuaStack(L)
print("foreground: ", red, " ", green, " ", blue, "\n")
L.Getglobal("f")
L.Pushnumber(1)
L.Pushnumber(2)
L.Pcall(2, 1, 0)
if L.Isnumber(-1) != true {
print("result is not number")
}
r := L.Tonumber(-1)
L.Pop(1)
print("result of f(x,y): ", r, "\n")
L.Getglobal("print_foreground")
L.Pcall(0, 0, 0)
L.Getglobal("print_background")
L.Pcall(0, 0, 0)
}