Update board.hpp, forces.hpp, forces.cpp, main.cpp, pedestrian.hpp: correct some bugs in implementation

pedestrian.hpp

@@ -1,85 +1,21 @@
 #pragma once
-#include "vector2d.hpp"
 #include "random"
+#include "vector2d.hpp"
 
+// For visual simulation
+enum Color { BLACK, WHITE };
 
 struct Pedestrian {
-
-  // TODO: Update initial values
-  Pedestrian() :
-    curr_vel(),
-    curr_pos(),
-    e(),
-    v_max(1.34 * 1.3),
-    desired_v0(1.34),
-    destination(),
-    F_i(),
-    next_pos(),
-    next_vel(),
-    w_alpha()
-    {}
-
-  Pedestrian(
-    Vector2d c_v,
-    Vector2d c_p,
-    Vector2d e,
-    Vector2d d,
-    Vector2d f,
-    Vector2d n_p,
-    Vector2d n_v,
-    Vector2d w_alpha
-  ) : 
-  curr_vel(c_v), 
-  curr_pos(c_p), 
-  e(e),
-  v_max(),
-  desired_v0(),
-  destination(d), 
-  F_i(f), 
-  next_pos(n_p), 
-  next_vel(n_v), 
-  w_alpha(w_alpha)
-  {}
-
-  // $\vec{v}_{\alpha}(t)$
+  Color color;
   Vector2d curr_vel;
-
-  // $\vec{r}_\alpha(t)$
   Vector2d curr_pos;
-
-  // $\vec{e}_{\alpha}(t)$
   Vector2d e;
-
-  // $v_{\alpha}^{max} = 1.3 v^{0}_{\alpha}$
   double v_max;
-
-  // $v_\alpha^0$
   double desired_v0;
-
-  // # =============================================================
-
-  // $\vec{r}^0_\alpha$
   Vector2d destination;
+  Vector2d f_i;
 
-  // social force
-  Vector2d F_i;
+  Pedestrian() : color(WHITE), curr_vel(0.0, 0.0), curr_pos(0.0, 0.0), e(0.0, 0.0), v_max(0.0), desired_v0(0.0), destination(0.0, 0.0), f_i(0.0, 0.0) {}
 
-  // # =============================================================
-
-  // $\vec{r}_\alpha(t+1)$
-  Vector2d next_pos;
-
-  // $\vec{v}_{\alpha}(t + 1)$
-  Vector2d next_vel;
-
-  // $\vec{w}_{\alpha}$
-  Vector2d w_alpha;
-
-  // # =============================================================
-
-  void update() {
-    curr_pos = next_pos;
-    curr_vel = next_vel;
-    e = (destination - curr_pos) / (destination - curr_pos).norm();
-  }
+  Pedestrian(Color clr, Vector2d c_v, Vector2d c_p, Vector2d e, double v_max, double desired_v0, Vector2d d, Vector2d f) : color(clr), curr_vel(c_v), curr_pos(c_p), e(e), v_max(v_max), desired_v0(desired_v0), destination(d), f_i(f) {}
 };