add reset functionality

scripts/run_simulation.jl

@@ -88,6 +88,7 @@ fig[2, 1] = buttongrid = GridLayout(tellwidth=false)
 btn_step = Button(buttongrid[1, 1], label="Step")
 btn_start = Button(buttongrid[1, 2], label="Start")
 btn_stop = Button(buttongrid[1, 3], label="Stop")
+btn_reset = Button(buttongrid[1, 4], label="Reset")
 
 
 fig[3, 1] = textboxgrid = GridLayout(tellwidth=false)
@@ -97,6 +98,15 @@ box_u = Textbox(textboxgrid[1, 1], validator=Float64, placeholder="word")
 # box_kill = Textbox(textboxgrid[1, 4], validator=Float64, placeholder="word")
 # Timer and state for animation
 running = Observable(false)
+function reset!(U, V, heat_obs)
+    U .= 1.0
+    V .= 0.0
+    center = size(U, 1) ÷ 2
+    radius = 10
+    U[center-radius:center+radius, center-radius:center+radius] .= 0.50
+    V[center-radius:center+radius, center-radius:center+radius] .= 0.25
+    heat_obs[] = copy(U)
+end
 
 function animation_loop()
     while running[]
@@ -108,6 +118,7 @@ end
 on(box_u.stored_string) do s
     try
         Du[] = parse(Float64, s)
+        println("Change Du ", Du[])
     catch
         @warn "Invalid input for Du: $s"
     end
@@ -128,4 +139,9 @@ on(btn_stop.clicks) do _
     running[] = false
 end
 
+on(btn_reset.clicks) do _
+    running[] = false
+    reset!(U, V, heat_obs)
+
+end
 display(fig)