add basic 3d perspective

1 files changed, 29 insertions, 0 deletions

diff --git a/src/glm/transform.c b/src/glm/transform.c
index 4dce595..daf75a5 100644
--- a/src/glm/transform.c
+++ b/src/glm/transform.c
@@ -4,12 +4,16 @@
 #include "util/util.h"
 
 
+int translate(lua_State *L);
+int rotate(lua_State *L);
 int rotate_z(lua_State *L);
 
 
 void setup_transform(lua_State *L, int glm_tbl)
 {
 	int tbl = hs_create_table(L,
+		hs_str_cfunc("translate", translate),
+		hs_str_cfunc("rotate", rotate),
 		hs_str_cfunc("rotate_z", rotate_z),
 	);
 
@@ -18,6 +22,31 @@ void setup_transform(lua_State *L, int glm_tbl)
 }
 
 
+int translate(lua_State *L)
+{
+	void *m_ptr, *v_ptr;
+	hs_parse_args(L, hs_user(m_ptr), hs_user(v_ptr));
+	mat4 *m = m_ptr;
+	vec3 *v = v_ptr;
+
+	glm_translate(*m, *v);
+	return 0;
+}
+
+
+int rotate(lua_State *L)
+{
+	void *m_ptr, *axis_ptr;
+	lua_Number angle;
+	hs_parse_args(L, hs_user(m_ptr), hs_num(angle), hs_user(axis_ptr));
+	mat4 *m = m_ptr;
+	vec3 *axis = axis_ptr;
+
+	glm_rotate(*m, angle, *axis);
+	return 0;
+}
+
+
 int rotate_z(lua_State *L)
 {
 	void *src_ptr, *dest_ptr;