fix rect clipping functions

1 files changed, 8 insertions, 12 deletions

diff --git a/rect.c b/rect.c
index e3d3948..599d9a3 100644
--- a/rect.c
+++ b/rect.c
@@ -3,7 +3,6 @@
 
 Rect* rect_clip(Rect* r, const Rect* c) {
 	int n;
-	int x = r->x, y = r->y;
 	if ((n = c->x - r->x) > 0) {
 		r->w -= n;
 		r->x += n;
@@ -12,16 +11,15 @@ Rect* rect_clip(Rect* r, const Rect* c) {
 		r->h -= n;
 		r->y += n;
 	}
-	if ((n = x + r->w - (c->x + c->w)) > 0)
+	if ((n = r->x + r->w - (c->x + c->w)) > 0)
 		r->w -= n;
-	if ((n = y + r->h - (c->y + c->h)) > 0)
+	if ((n = r->y + r->h - (c->y + c->h)) > 0)
 		r->h -= n;
 	return r;
 }
 
 Rect* rect_clipr(Rect* r, const int* c) {
 	int n;
-	int x = r->x, y = r->y;
 	if ((n = c[0] - r->x) > 0) {
 		r->w -= n;
 		r->x += n;
@@ -30,16 +28,15 @@ Rect* rect_clipr(Rect* r, const int* c) {
 		r->h -= n;
 		r->y += n;
 	}
-	if ((n = x + r->w - c[2]) > 0)
+	if ((n = r->x + r->w - c[2]) > 0)
 		r->w -= n;
-	if ((n = y + r->h - c[3]) > 0)
+	if ((n = r->y + r->h - c[3]) > 0)
 		r->h -= n;
 	return r;
 }
 
 Rect* rect_clips(Rect* r, Rect* s, const Rect* c) {
 	int n;
-	int x = r->x, y = r->y;
 	if ((n = c->x - r->x) > 0) {
 		r->w -= n;
 		r->x += n;
@@ -52,11 +49,11 @@ Rect* rect_clips(Rect* r, Rect* s, const Rect* c) {
 		s->h -= n;
 		s->y += n;
 	}
-	if ((n = x + r->w - (c->x + c->w)) > 0) {
+	if ((n = r->x + r->w - (c->x + c->w)) > 0) {
 		r->w -= n;
 		s->w -= n;
 	}
-	if ((n = y + r->h - (c->y + c->h)) > 0) {
+	if ((n = r->y + r->h - (c->y + c->h)) > 0) {
 		r->h -= n;
 		s->h -= n;
 	}
@@ -65,7 +62,6 @@ Rect* rect_clips(Rect* r, Rect* s, const Rect* c) {
 
 Rect* rect_clipsr(Rect* r, Rect* s, const int* c) {
 	int n;
-	int x = r->x, y = r->y;
 	if ((n = c[0] - r->x) > 0) {
 		r->w -= n;
 		r->x += n;
@@ -78,11 +74,11 @@ Rect* rect_clipsr(Rect* r, Rect* s, const int* c) {
 		s->h -= n;
 		s->y += n;
 	}
-	if ((n = x + r->w - c[2]) > 0) {
+	if ((n = r->x + r->w - c[2]) > 0) {
 		r->w -= n;
 		s->w -= n;
 	}
-	if ((n = y + r->h - c[3]) > 0) {
+	if ((n = r->y + r->h - c[3]) > 0) {
 		r->h -= n;
 		s->h -= n;
 	}