From 513b77752efc4f6370adf33e68b9de46f5a39437 Mon Sep 17 00:00:00 2001
From: Marto <marto@marto.si>
Date: Thu, 16 Apr 2026 01:03:24 +0200
Subject: [PATCH] Implementation of adding new roads, bug incoming, TODO entity
 viewer, something akin to imgui

---
 src/infrastructure/road_manager.zig |  4 +++-
 src/simulator.zig                   | 35 ++++++++++++++++++++++++-----
 2 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/src/infrastructure/road_manager.zig b/src/infrastructure/road_manager.zig
index 0ed3372..65b5fd4 100644
--- a/src/infrastructure/road_manager.zig
+++ b/src/infrastructure/road_manager.zig
@@ -35,7 +35,7 @@ pub const RoadManager = struct {
     }
 
     /// Creates a new road with nodes; Then it references the said road to the nodes themselves
-    pub fn add(self: *RoadManager, allocator: std.mem.Allocator, start_node: *Node, end_node: *Node) !void {
+    pub fn add(self: *RoadManager, allocator: std.mem.Allocator, start_node: *Node, end_node: *Node) !*Road {
         const road: Road = .init(self.getNewID(), start_node, end_node);
 
         self.roads.appendBounded(road) catch |err| {
@@ -47,6 +47,8 @@ pub const RoadManager = struct {
 
         try start_node.referenceRoad(allocator, road_ref);
         try end_node.referenceRoad(allocator, road_ref);
+
+        return road_ref;
     }
 
     /// Returns the reference to the last element in the list; returns null if there are no elements in the list
diff --git a/src/simulator.zig b/src/simulator.zig
index 6e04f20..d2a2373 100644
--- a/src/simulator.zig
+++ b/src/simulator.zig
@@ -156,7 +156,6 @@ pub const Simulator = struct {
             c.HEIGHT - 2 * c.TEXT_SIZE,
             c.TEXT_SIZE, .black);
 
-
         // Displays the mode the simulation is currently in
         rl.drawText(@tagName(self.mode), 10, c.HEIGHT - c.TEXT_SIZE, c.TEXT_SIZE, .black);
 
@@ -210,10 +209,14 @@ pub const Simulator = struct {
     }
 
     fn splitRoadsByPoints(self: *Simulator, intersections: []const st.IntersectionData, start: *const Node, end: *const Node) void {
-        _ = end; // autofix
-        _ = start; // autofix
-        // todo plan it out
         if (intersections.len == 0) return;
+        
+        const first_intersection_road = intersections[0];
+        const first_intersection_node = self.node_man.getSelectedNode(first_intersection_road.point);
+        const first_road = self.road_man.add(self.allocator, start, first_intersection_node) catch |err| {
+            std.debug.panic("Failed to create the first split road: {}\n", .{err});
+        };
+        first_intersection_node.referenceRoad(self.allocator, first_road);
 
         // We have done that every intersection creates new node and reconnects existing connections
         // TODO
@@ -233,11 +236,31 @@ pub const Simulator = struct {
             // As is the end node's road reference
             road_old_node.unreferenceRoad(intersection.road);
 
-            self.road_man.add(self.allocator, new_node, road_old_node) catch |err| {
-                std.debug.panic("Failed to create the new split road: {}\n", .{err});
+            _ = self.road_man.add(self.allocator, new_node, road_old_node) catch |err| {
+                std.debug.panic("Failed to create the last split road: {}\n", .{err});
             };
+
+            if (i == intersections.len - 1) continue;
+
+            const connecting_road = self.road_man.add(
+                self.allocator,
+                self.node_man.getSelectedNode(intersection.point),
+                self.node_man.getSelectedNode(intersections[i+1].point)) catch |err| {
+                std.debug.panic("Failed to create the connecting road: {}\n", .{err});
+            };
+
+            // todo
+            // okay so here we connect the road to current and next node
+            // and then this should hopefully be it
+            // 20 new bugs incoming
         }
 
+        const last_intersection_road = intersections[intersections.len - 1];
+        const last_intersection_node = self.node_man.getSelectedNode(last_intersection_road.point);
+        const road = self.road_man.add(self.allocator, last_intersection_node, end) catch |err| {
+            std.debug.panic("Failed to add the road: {}\n", .{err});
+        };
+        last_intersection_node.referenceRoad(self.allocator, road);
     }
 
     pub fn update(self: *Simulator) void {