From 424a7ced87a221daa154083c26aaf24ae674f642 Mon Sep 17 00:00:00 2001
From: Sandro Zimmermann <sandro.zimmermann@outlook.com>
Date: Thu, 4 Dec 2025 23:47:23 +0100
Subject: [PATCH] updated verkehr_sk.py but dosn't work at all

---
 verkehrssimulation/verkehr_sk.py | 34 +++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 12 deletions(-)

diff --git a/verkehrssimulation/verkehr_sk.py b/verkehrssimulation/verkehr_sk.py
index 17e2085..d11676f 100644
--- a/verkehrssimulation/verkehr_sk.py
+++ b/verkehrssimulation/verkehr_sk.py
@@ -9,6 +9,11 @@ INIT_CELLS = int(GRIDSIZE*0.1)
 MAX_TIME = 300
 EMPTY_CELL = -1
 
+def unit_distance(grid, v):
+    for i in range(1, v):
+        if grid[i] != -1:
+            return i
+    return -1
 
 # query distance between two cars
 def get_distance(grid, i):
@@ -18,28 +23,32 @@ def get_distance(grid, i):
     Insert your code here
     """
 
-    if i == GRIDSIZE-1:
-        dist = (grid[i], grid[0])
-    else:
-        dist = (grid[i], grid[i+1])
+    print(i % 300)
+    quit()
 
-    return dist
+    for n in range(1, grid[i]+1):
+        if grid[i + n] != -1:
+            return n
+    return -1
 
 # state transition t -> t + dt
 def update(grid_old, grid_new):
     for i in range(GRIDSIZE):
         dist = get_distance(grid_old, i)
-        
-        if not -1 in dist:
-            dist = dist[1] - dist[0]
-
-        print(dist)
-        time.sleep(0.5)
-
         """ Update cars according rules using value 'dist' """
         """
         Insert your code here
         """
+        if dist != -1:
+            if dist == 0:
+                grid_new[i] = 0
+            elif dist - grid_old[i] < 0:
+                grid_new[i] = dist - 1
+            else:
+                if grid_old[i] != 5:
+                    grid_new[i] += 1
+                else:
+                    grid_new[i] = grid_old[i]
 
 # allocate memory and initialise grids
 grid_old = np.full((GRIDSIZE), EMPTY_CELL, dtype=np.int32)
@@ -65,3 +74,4 @@ plt.xlabel('Cells')
 plt.ylabel('Timesteps')
 plt.imshow(traffic, cmap='Blues')
 plt.show()
+time.sleep(0.1)