52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
#include "api_lua.hpp"
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#define GLM_ENABLE_EXPERIMENTAL
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#include <glm/ext/matrix_transform.hpp>
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#include <glm/gtx/quaternion.hpp>
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#include <sstream>
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static int l_from_mat4(lua::State* L) {
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uint argc = lua::check_argc(L, 1, 2);
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auto matrix = lua::tomat4(L, 1);
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if (argc == 1) {
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return lua::pushquat(L, glm::toQuat(matrix));
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} else {
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return lua::setquat(L, 2, glm::toQuat(matrix));
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}
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}
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static int l_slerp(lua::State* L) {
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uint argc = lua::check_argc(L, 3, 4);
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auto quat1 = lua::toquat(L, 1);
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auto quat2 = lua::toquat(L, 2);
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float t = lua::tonumber(L, 3);
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if (argc == 3) {
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return lua::pushquat(L, glm::slerp(quat1, quat2, t));
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} else {
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return lua::setquat(L, 4, glm::slerp(quat1, quat2, t));
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}
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}
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static int l_tostring(lua::State* L) {
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lua::check_argc(L, 1);
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auto quat = lua::toquat(L, 1);
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std::stringstream ss;
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ss << "quat"
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<< "{";
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for (int i = 0; i < 4; i++) {
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if (i > 0) {
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ss << ", ";
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}
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ss << quat[i];
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}
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ss << "}";
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return lua::pushstring(L, ss.str());
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}
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const luaL_Reg quatlib[] = {
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{"from_mat4", lua::wrap<l_from_mat4>},
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{"slerp", lua::wrap<l_slerp>},
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{"tostring", lua::wrap<l_tostring>},
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{NULL, NULL}};
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