1 files changed, 14 insertions, 0 deletions

diff --git a/maths.c b/maths.c
index a0c9ed5..5ade946 100644
--- a/maths.c
+++ b/maths.c
@@ -180,6 +180,12 @@ void mtx_push_rot_z(int a) {
 	mtx_push(m);
 }
 
+void mtx_push_scale(int s) {
+	int m[0x10];
+	mtx_scale(m, s);
+	mtx_push(m);
+}
+
 int* mtx_pop(void) {
 	assert(mtx_stack_top > 0);
 	return mtx_stack[--mtx_stack_top];
@@ -234,6 +240,14 @@ int* mtx_rot_z(int* d, int a) {
 	return d;
 }
 
+int* mtx_scale(int* d, int s) {
+	mtx_iden(d);
+	d[0]  = s;
+	d[5]  = s;
+	d[10] = s;
+	return d;
+}
+
 int* mtx_apply(const int* m, int* v) {
 	int s[4];
 	vec_cpy(s, v, 4);