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64 lines
1.1 KiB
C++
64 lines
1.1 KiB
C++
#define SOL_CHECK_ARGUMENTS
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#include <sol.hpp>
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#include <vector>
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#include <iostream>
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int main(int, char**) {
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std::cout << "=== containers example ===" << std::endl;
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sol::state lua;
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lua.open_libraries();
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lua.script(R"(
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function f (x)
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print("container has:")
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for k=1,#x do
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v = x[k]
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print("\t", k, v)
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end
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print()
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end
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)");
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// Have the function we
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// just defined in Lua
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sol::function f = lua["f"];
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// Set a global variable called
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// "arr" to be a vector of 5 lements
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lua["arr"] = std::vector<int>{ 2, 4, 6, 8, 10 };
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// Call it, see 5 elements
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// printed out
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f(lua["arr"]);
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// Mess with it in C++
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// Containers are stored as userdata, unless you
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// use `sol::as_table()` and `sol::as_table_t`.
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std::vector<int>& reference_to_arr = lua["arr"];
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reference_to_arr.push_back(12);
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// Call it, see *6* elements
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// printed out
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f(lua["arr"]);
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lua.script(R"(
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arr:add(28)
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)");
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// Call it, see *7* elements
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// printed out
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f(lua["arr"]);
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lua.script(R"(
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arr:clear()
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)");
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// Now it's empty
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f(lua["arr"]);
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std::cout << std::endl;
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return 0;
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} |