reduced the ammount of loops and discuraged roads that cut across large parts of the city

roads.go

@@ -503,6 +503,7 @@ func connectPOIs(pois []*PointOfInterest, width, height int, settings *Settings,
 	}
 	collectorTarget := max(len(pois)-1, max(roadTarget, roadTarget+max(2, roadTarget/8)))
 	totalBudget := max(collectorTarget, roadTarget+max(3, roadTarget/4))
+	isSmallSettlement := settings.NumBuildings <= 120 || len(pois) <= 18
 
 	centerX := float64(width-1) * 0.5
 	centerY := float64(height-1) * 0.5
@@ -718,6 +719,9 @@ func connectPOIs(pois []*PointOfInterest, width, height int, settings *Settings,
 			}
 			a := pois[c.a]
 			b := pois[c.b]
+			if !a.IsExit && !b.IsExit && c.dist > edgeDist*0.72 {
+				continue
+			}
 			connectedBonus := 0.0
 			if arterialNodes[c.a] || arterialNodes[c.b] {
 				connectedBonus = 0.20
@@ -725,7 +729,11 @@ func connectPOIs(pois []*PointOfInterest, width, height int, settings *Settings,
 			distScore := 1.0 - clamp01(c.dist/(edgeDist*1.1))
 			centerPenalty := centerCloseness(a) * centerCloseness(b) * 0.35
 			degreePenalty := clamp01(float64(a.Connections+b.Connections) / 7.0)
-			score := c.score*0.28 + c.arterialMean*0.27 + distScore*0.35 + connectedBonus - centerPenalty - degreePenalty*0.14
+			longDiagonalPenalty := 0.0
+			if !a.IsExit && !b.IsExit {
+				longDiagonalPenalty = clamp01((c.dist-edgeDist*0.45)/(edgeDist*0.35)) * 0.28
+			}
+			score := c.score*0.28 + c.arterialMean*0.27 + distScore*0.35 + connectedBonus - centerPenalty - degreePenalty*0.14 - longDiagonalPenalty
 			if score > bestScore {
 				bestScore = score
 				bestIdx = idx
@@ -751,12 +759,23 @@ func connectPOIs(pois []*PointOfInterest, width, height int, settings *Settings,
 		if len(selectedEdges) >= totalBudget {
 			break
 		}
-		if pick.dist > edgeDist*0.85 {
+		if pick.dist > edgeDist*0.60 {
 			continue
 		}
+		a := pois[pick.a]
+		b := pois[pick.b]
 		if !canUseEdge(pick, RoadTierLocal) {
 			continue
 		}
+		if a.Connections >= a.TargetDegree || b.Connections >= b.TargetDegree {
+			continue
+		}
+		if isSmallSettlement && (a.Connections > 1 || b.Connections > 1) {
+			continue
+		}
+		if !a.IsExit && !b.IsExit && pick.dist > edgeDist*0.42 {
+			continue
+		}
 		addEdge(pick, RoadTierLocal)
 	}