diff --git a/src/game.c b/src/game.c
index dd2e8a3..5a487e3 100644
--- a/src/game.c
+++ b/src/game.c
@@ -77,29 +77,26 @@ get_circle_vertice(int angle, int dist) { //{{{
 	p.x = cos((double)angle*2*M_PI/ANGLE_MAX) * dist;
 	p.y = sin((double)angle*2*M_PI/ANGLE_MAX) * dist;
 
-	OFFSET_POINT(p);
+	OFFSET_POINT_2SCREEN(p);
 
 	return p;
 } //}}}
 
 SDL_Point
 to_screen_coords(struct s_game *g, SDL_Point p) { //{{{
-	SDL_Point q;
+	SDL_Point pp;
+
 
-	p.x -= SCREEN_WIDTH/2;
-	p.y -= SCREEN_HEIGHT/2;
 	float angle = TO_RAD(g->general_rotation);
 
-	q.x = p.x * cos(angle) - p.y * sin(angle);
-	q.y = p.x * sin(angle) + p.y * cos(angle);
+	OFFSET_POINT_2IT(p);
+	pp.x = p.x * cos(angle) - p.y * sin(angle);
+	pp.y = p.x * sin(angle) + p.y * cos(angle);
+//      pp.x *= g->sexual_pulsation;
+//	pp.y *= g->sexual_pulsation;
+	OFFSET_POINT_2SCREEN(pp);
 
-//	q.x *= g->sexual_pulsation;
-//	q.y *= g->sexual_pulsation;
-
-	q.x += SCREEN_WIDTH/2;
-	q.y += SCREEN_HEIGHT/2;
-
-	return q;
+	return pp;
 }//}}}
 
 void
diff --git a/src/game.h b/src/game.h
index 96db1e7..1f31506 100644
--- a/src/game.h
+++ b/src/game.h
@@ -17,12 +17,10 @@
 #define CLEVER_MODULO(n, mod) do { while(n < 0) { n += mod; };;;; n %= mod; } while(0);
 
 
-#define DEC_COLOR 0x00020202
-#define DIVIDE_COLOR(color, times) (((color) & 0x00ff0000 / (times)) | ((color) & 0x0000ff00 / (times)) | ((color) & 0x000000ff / (times)))
-
 ////POLYGON
 #define POLYGON_SIZE 50
 #define POLYGON_THICK 15
+
 //SHAPES
 #define SHAPE_TRIANGLE 3
 #define SHAPE_SQUARE 4
@@ -30,14 +28,17 @@
 #define SHAPE_HEXAGON 6
 
 #define SHAPE_THICK 60
+
+
 #define DFT_OBS_SPEED (SHAPE_THICK /  15)
 
 #define CURSOR_DIST (POLYGON_SIZE +  POLYGON_THICK + 20)
 #define CURSOR_DEG_FRAME (24 / g->polygon_type)
 #define ANGLE_MAX 3600
 
-#define OFFSET_POINT(p) {p.x += SCREEN_WIDTH/2; p.y += SCREEN_HEIGHT/2;}
-#define MAX(a, b) (a < b) ? (b) : (a)
+#define OFFSET_POINT_2IT(p) {p.x -= SCREEN_WIDTH/2; p.y -= SCREEN_HEIGHT/2;}
+#define OFFSET_POINT_2SCREEN(p) {p.x += SCREEN_WIDTH/2; p.y += SCREEN_HEIGHT/2;}
+#define MAX(a, b) (((a) > (b) ? (a) : (b)))
 
 #define TO_DEG(x) (x*ANGLE_MAX/360)
 #define TO_RAD(x) (x * 2 * M_PI / ANGLE_MAX)
@@ -53,7 +54,6 @@ struct s_obstacle {
 };
 
 struct s_game {
-	#define CURSOR_POS_MAX 255
 	int cursor_angle; //relative to the polygon center's referential
 	int general_rotation;
 	float sexual_pulsation;
diff --git a/src/main.c b/src/main.c
index 6a7ed4f..bc273d0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -30,18 +30,14 @@ start:
 
 
 	while(1) {
+		//clear the screen
 		SDL_FillRect(ga.screen, NULL, 0);
+
 		if(did_have_beat(&ga)) {
 			ga.sexual_pulsation = 60;
 			puts("Pulse");
 		}
 
-		/*
-		if(!(ga.counter % 28)) {
-			add_random_obstacle(&ga);
-		}
-		*/
-
 		if(get_max_obs_dist(&ga) < SCREEN_DIAGONAL)
 			add_pattern(&ga);
 
@@ -50,7 +46,7 @@ start:
 		SDL_Flip(ga.screen);
 
 		if(check_collisions(&ga)) {
-			puts("PERDU, connard !");
+			puts("PERDU");
 			SDL_Delay(2000);
 			goto start;
 		}
diff --git a/src/polygons.c b/src/polygons.c
index 4db8863..5bc3a69 100644
--- a/src/polygons.c
+++ b/src/polygons.c
@@ -23,7 +23,7 @@ get_hexagon_vertice(int faceno, int dist) { //{{{
 	p1.x = dist * cos((M_PI/3)*faceno);
 	p1.y = dist * sin((M_PI/3)*faceno);
 
-	OFFSET_POINT(p1);
+	OFFSET_POINT_2SCREEN(p1);
 
 	return p1;
 } //}}}
@@ -34,7 +34,7 @@ get_square_vertice(int faceno, int dist) { //{{{
 	p1.x = dist * cos((M_PI/2)*faceno);
 	p1.y = dist * sin((M_PI/2)*faceno);
 
-	OFFSET_POINT(p1);
+	OFFSET_POINT_2SCREEN(p1);
 
 	return p1;
 } //}}}
@@ -45,7 +45,7 @@ get_triangle_vertice(int faceno, int dist) { //{{{
 	p1.x = dist * cos((2*M_PI/3)*faceno);
 	p1.y = dist * sin((2*M_PI/3)*faceno);
 
-	OFFSET_POINT(p1);
+	OFFSET_POINT_2SCREEN(p1);
 
 	return p1;
 } //}}}