From f46096472238c501f889b446e1d62fd8820a2952 Mon Sep 17 00:00:00 2001
From: "Marcus Str." <marcus@marstr.online>
Date: Tue, 31 Dec 2024 16:22:52 +0100
Subject: [PATCH] Further corrections in resource allocation code

---
 layergen.py     | 10 ++++++++++
 orthographic.py | 32 ++++++++++++++++++++++++++++++++
 tileprep.py     | 12 ++++++++++--
 3 files changed, 52 insertions(+), 2 deletions(-)

diff --git a/layergen.py b/layergen.py
index ab2517a..ee4faba 100644
--- a/layergen.py
+++ b/layergen.py
@@ -293,6 +293,16 @@ class mstr_layergen:
                 srcstr = srcstr + str(src[s])
                 if s < len(src)-1:
                     srcstr = srcstr + ","
+            
+            # Failsafe
+            if srcstr == "0":
+                srcstr = ""
+                numbers = list(range(1, 16))
+                src = random.sample(numbers, 5)
+                for s in range(len(src)):
+                    srcstr = srcstr + str(src[s])
+                    if s < len(src)-1:
+                        srcstr = srcstr + ","
 
             # Patch and border sources. There can only be one for each.
             brd_src = None
diff --git a/orthographic.py b/orthographic.py
index daf59e1..82b0b87 100644
--- a/orthographic.py
+++ b/orthographic.py
@@ -37,6 +37,7 @@ class mstr_orthographic:
         self._vstep = self._findVerticalStepping()
         self._latlngfld = self.latlng_folder([lat,lng])
         self._prep = prep
+        self._tiles_visited = []
         mstr_msg("orthographic", "Initiated with LAT: " + str(lat) + ", LNG: " + str(lng))
 
 
@@ -440,6 +441,11 @@ class mstr_orthographic:
 
         # We now need to "raytrace" the resources for correct placement
         mstr_msg("orthographic", "Performing resource plamement tracing for tile")
+
+        # Let's set up an array which keeps track of all used tiles, per resource
+        
+        for l in mstr_ortho_layers:
+            self._tiles_visited.append([(l[0], l[1])]) # Store tag and value as tuple for each possible resource
         
         for lat_grid in range(1, maxlatlng[0]+1):
             for lng_grid in range(1, maxlatlng[1]+1):
@@ -451,11 +457,37 @@ class mstr_orthographic:
 
                 for l in range(0, len(fnlines)):
                     lyr = fnlines[l].split(" ")
+                    
+                    vstidx = -1
+                    for vst in range(0, len(self._tiles_visited)):
+                        if self._tiles_visited[vst][0][0] == lyr[0] and self._tiles_visited[vst][0][1] == lyr[1]:
+                            vstidx = vst
+                            break
+                    
                     tp = mstr_tileprep(self._lat, self._long, lat_grid, lng_grid, lyr[0], lyr[1], None, False)
                     tp._setLatLngFold(self._latlngfld)
+                    tp._setAlreadyVisitedTiles(self._tiles_visited[vstidx])
                     tp._placeTileSources(mlat, mlng)
+                    self.adjust_tiles_visited(lyr[0], lyr[1], tp._all_visited)
 
 
+    # Adjust the tiles visited for one resource
+    def adjust_tiles_visited(self, tag, value, tiles):
+        lyridx = -1
+        for v in range(0, len(self._tiles_visited)):
+            if self._tiles_visited[v][0][0] == tag and self._tiles_visited[v][0][1] == value:
+                lyridx = v
+                break
+        
+        for t in range(1, len(tiles)):
+            fnd = False
+            for v in range(1, len(self._tiles_visited[lyridx])):
+                if self._tiles_visited[lyridx][v][0] == tiles[t][0] and self._tiles_visited[lyridx][v][1] == tiles[t][1]:
+                    fnd = True
+                    break
+            if fnd == False:
+                self._tiles_visited[lyridx].append((tiles[t][0], tiles[t][1]))
+
     # Generates X-Plane 11/12 scenery with
     # - the finished orthos
     # - a current LIDAR scan of the terrain
diff --git a/tileprep.py b/tileprep.py
index 46a003e..41f032f 100644
--- a/tileprep.py
+++ b/tileprep.py
@@ -39,6 +39,8 @@ class mstr_tileprep:
         self._mask      = mask
         latlngfld = xplane_latlng_folder([lat, lng])
         self._tileinfo  = mstr_tileinfo(lat, lng, v, h, latlngfld)
+        self._already_visited = [] # To be filled later
+        self._all_visited = []
         
         # Special case for the final step of an ortho
         self._is_completion = is_completion
@@ -303,6 +305,11 @@ class mstr_tileprep:
         return visited
 
 
+    # Let the orthographic class pass all visited tiles for this resource
+    def _setAlreadyVisitedTiles(self, tiles):
+        self._already_visited = tiles
+
+
     # Walk through the now existing data files and make sure we always pick the correct
     # sources for every tile, thus evading previous edge detection errors
     def _placeTileSources(self, mlat, mlng):
@@ -315,14 +322,15 @@ class mstr_tileprep:
             vst = self._scanConnections((visited[v][0], visited[v][1]))
             for l in range(len(vst)):
                 if self._checkVisited(visited, (vst[l][0], vst[l][1])) == False: visited.append((vst[l][0], vst[l][1]))
+
+        self._all_visited = visited
         
         # We will take the resource of the original tile we have started
         # our scan from. If there is nothing, we can choose.
         # This is then used for all visited tiles.
         tv = self._tile_v
         th = self._tile_h
-        resstring = self._getResourceInfo(tv, th)
-        if resstring == "0" or resstring == "": resstring = self._selectResources()
+        resstring = self._selectResources()
         for v in range(0, len(visited)):
             self._storeResourceInfo(visited[v][0], visited[v][1], resstring)