Added zoom factor for visual trip

hexagon.c

@@ -14,7 +14,7 @@
 //oriented angle between the player and the horizontal axis
 int player_angle=0;
 
-Camera cam = {64, 32, 0, 0};
+Camera cam = {64, 32, 0, 0, 0};
 
 //linked list of obstacles
 //at the moment, there is only a list, but at term, we should be using the lists from the Line struct. (And thus remove the "line" member from the Wall struct
@@ -159,15 +159,15 @@ void drawPlayer()
     for(i = 0; i<6; ++i)
     {
         int angle = i *60;
-        x[i] = 8.*cos(PI * (angle + cam.angle)/180.) + cam.cX;
-        y[i] = 8.*sin(PI * (angle + cam.angle)/180.) + cam.cY;
+        x[i] = (8. + cam.zoom)*cos(PI * (angle + cam.angle)/180.) + cam.cX;
+        y[i] = (8. + cam.zoom)*sin(PI * (angle + cam.angle)/180.) + cam.cY;
     }
 
 	//draw the aforementionned circle, depending on the camera's center
     //ML_filled_circle(cam.cX, cam.cY, 6, BLACK);
 	ML_polygone(x, y, 6, BLACK);
 	//draw the player. At such a low scale, it was impossible to draw a rotating triangle, so its a radius 1 circle instead.
-    ML_filled_circle(9*cos( PI*(player_angle + cam.angle)/180) + cam.cX, 9*sin( PI*(player_angle+cam.angle)/180) + cam.cY, 1, BLACK);
+    ML_filled_circle((9. + cam.zoom)*cos( PI*(player_angle + cam.angle)/180) + cam.cX, (9. + cam.zoom)*sin( PI*(player_angle+cam.angle)/180) + cam.cY, 1, BLACK);
 
 }
 

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struct.h

@@ -24,13 +24,13 @@ struct Level{
 
 	//for the camera rotation
 	int change_interval; //5 seconds most of the time, but who knows...
-	int change_precision //to add a bit of randomness to the intervals
+	int change_precision; //to add a bit of randomness to the intervals
 	float change_probability; //sometimes, there can be no change at all
-	
+
 	float max_speed;
 	float min_speed;
 
-	float fast_spin_probability; //very low, sometimes there is a slightly faster spin for one second, then a normal spin. This is the number that allow us to generate it
+	float fast_spin_probability; //very low, there sometimes is a slightly faster spin for one second, then a normal spin. This is the number that allow us to generate it
 };
 
 //the camera is defined by its center
@@ -40,6 +40,7 @@ struct Camera{
     int cX;
     int cY;
     int angle;
+    unsigned float zoom;
 
     float speed;
 };

wall.c

@@ -103,7 +103,7 @@ void show(Wall *list, Camera *cam)
 				const float sin1 = sin(angle);
 				const float sin2 = sin(angle + PI/3);
 				int i,j, x, y;
-				float dist = tmp->d - tmp->h;
+				float dist = tmp->d - tmp->h + cam.zoom;
 				for(i = 0; i < tmp->h; ++i) {
 					if(dist <= 8) break;
 					ML_line(64 + dist*cos1, 32 + dist*sin1, 64 + dist*cos2, 32 + dist*sin2, BLACK);