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authorsanine <sanine.not@pm.me>2022-10-04 14:53:08 -0500
committersanine <sanine.not@pm.me>2022-10-04 14:53:08 -0500
commit6d96b0e7ea1d98e44647d0bbbba232701a7d557e (patch)
tree15fa9d310f1db5767b662fb0bb4cad8a560d3650 /src/glm/vec3.c
parent0c55c0e1b48de55fea401ea1b2b3f2280ef0f93c (diff)
add first person demo
Diffstat (limited to 'src/glm/vec3.c')
-rw-r--r--src/glm/vec3.c103
1 files changed, 93 insertions, 10 deletions
diff --git a/src/glm/vec3.c b/src/glm/vec3.c
index 483f5bd..f278471 100644
--- a/src/glm/vec3.c
+++ b/src/glm/vec3.c
@@ -8,12 +8,34 @@ int vec3_create(lua_State *L);
int vec3_set(lua_State *L);
int vec3_get(lua_State *L);
+int vec3_normalize(lua_State *L);
+
+int vec3_add(lua_State *L);
+int vec3_sub(lua_State *L);
+int vec3_scale(lua_State *L);
+int vec3_dot(lua_State *L);
+int vec3_cross(lua_State *L);
+
+const char *vec3_tname = "glm.vec3";
+
+
void setup_vec3(lua_State *L, int glm_tbl)
{
+ luaL_newmetatable(L, vec3_tname);
+ lua_pop(L, 1);
+
int tbl = hs_create_table(L,
hs_str_cfunc("vec3", vec3_create),
hs_str_cfunc("vec3_set", vec3_set),
hs_str_cfunc("vec3_get", vec3_get),
+
+ hs_str_cfunc("vec3_normalize", vec3_normalize),
+
+ hs_str_cfunc("vec3_add", vec3_add),
+ hs_str_cfunc("vec3_sub", vec3_sub),
+ hs_str_cfunc("vec3_scale", vec3_scale),
+ hs_str_cfunc("vec3_dot", vec3_dot),
+ hs_str_cfunc("vec3_cross", vec3_cross),
);
append_table(L, glm_tbl, tbl);
@@ -24,27 +46,88 @@ void setup_vec3(lua_State *L, int glm_tbl)
int vec3_create(lua_State *L)
{
lua_newuserdata(L, 3*sizeof(float));
+ luaL_getmetatable(L, vec3_tname);
+ lua_setmetatable(L, -2);
return 1;
}
int vec3_set(lua_State *L)
{
- void *ptr;
- lua_Integer index;
- lua_Number value;
- hs_parse_args(L, hs_user(ptr), hs_int(index), hs_num(value));
- array_set(L, 3, ptr, index, value);
+ float *vec = luaL_checkudata(L, 1, vec3_tname);
+ int index = luaL_checkinteger(L, 2);
+ double value = luaL_checknumber(L, 3);
+ array_set(L, 3, vec, index, value);
return 0;
}
int vec3_get(lua_State *L)
{
- void *ptr;
- lua_Integer index;
- lua_Number value;
- hs_parse_args(L, hs_user(ptr), hs_int(index));
- array_get(L, 3, ptr, index);
+ float *vec = luaL_checkudata(L, 1, vec3_tname);
+ int index = luaL_checkinteger(L, 2);
+ array_get(L, 3, vec, index);
+ return 1;
+}
+
+
+int vec3_normalize(lua_State *L)
+{
+ float *vec = luaL_checkudata(L, 1, vec3_tname);
+ glm_vec3_normalize(vec);
+ return 0;
+}
+
+
+int vec3_add(lua_State *L)
+{
+ float *a = luaL_checkudata(L, 1, vec3_tname);
+ float *b = luaL_checkudata(L, 2, vec3_tname);
+ float *dest = luaL_checkudata(L, 3, vec3_tname);
+
+ glm_vec3_add(a, b, dest);
+ return 0;
+}
+
+
+int vec3_sub(lua_State *L)
+{
+ float *a = luaL_checkudata(L, 1, vec3_tname);
+ float *b = luaL_checkudata(L, 2, vec3_tname);
+ float *dest = luaL_checkudata(L, 3, vec3_tname);
+
+ glm_vec3_sub(a, b, dest);
+ return 0;
+}
+
+int vec3_scale(lua_State *L)
+{
+ float *v = luaL_checkudata(L, 1, vec3_tname);
+ float s = luaL_checknumber(L, 2);
+ float *dest = luaL_checkudata(L, 3, vec3_tname);
+
+ glm_vec3_scale(v, s, dest);
+ return 0;
+}
+
+
+int vec3_dot(lua_State *L)
+{
+ float *a = luaL_checkudata(L, 1, vec3_tname);
+ float *b = luaL_checkudata(L, 2, vec3_tname);
+
+ float result = glm_vec3_dot(a, b);
+ lua_pushnumber(L, result);
return 1;
}
+
+
+int vec3_cross(lua_State *L)
+{
+ float *a = luaL_checkudata(L, 1, vec3_tname);
+ float *b = luaL_checkudata(L, 2, vec3_tname);
+ float *dest = luaL_checkudata(L, 3, vec3_tname);
+
+ glm_vec3_cross(a, b, dest);
+ return 0;
+}