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#include <lua.h>
#include <honeysuckle.h>
#include <cglm/cglm.h>
#include "util/util.h"
#include "glm.h"
int mat4_create(lua_State *L);
int mat4_set(lua_State *L);
int mat4_get(lua_State *L);
int mat4_identity(lua_State *L);
const char *mat4_tname = "glm.mat4";
void setup_mat4(lua_State *L, int glm_tbl)
{
luaL_newmetatable(L, mat4_tname);
lua_pop(L, 1);
int tbl = hs_create_table(L,
hs_str_cfunc("mat4", mat4_create),
hs_str_cfunc("mat4_set", mat4_set),
hs_str_cfunc("mat4_get", mat4_get),
hs_str_cfunc("mat4_identity", mat4_identity),
);
append_table(L, glm_tbl, tbl);
lua_pop(L, 1);
}
int mat4_create(lua_State *L)
{
lua_newuserdata(L, 16*sizeof(float));
luaL_getmetatable(L, mat4_tname);
lua_setmetatable(L, -2);
return 1;
}
int mat4_set(lua_State *L)
{
float *matrix = luaL_checkudata(L, 1, mat4_tname);
int index = luaL_checkinteger(L, 2);
float value = luaL_checknumber(L, 3);
array_set(L, 16, matrix, index, value);
return 0;
}
int mat4_get(lua_State *L)
{
float *matrix = luaL_checkudata(L, 1, mat4_tname);
int index = luaL_checkinteger(L, 2);
array_get(L, 16, matrix, index);
return 1;
}
int mat4_identity(lua_State *L)
{
void *m = luaL_checkudata(L, 1, mat4_tname);
glm_mat4_identity(m);
return 0;
}
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