From 205c630dbfef7166867cb2c547b03434a45c064c Mon Sep 17 00:00:00 2001
From: Marto <marto@marto.si>
Date: Mon, 27 Apr 2026 09:52:31 +0200
Subject: [PATCH] Error maxxing

---
 src/infrastructure_helpers.odin | 4 +++-
 src/input.odin                  | 2 +-
 src/pathfinding.odin            | 2 +-
 src/vehicles/car.odin           | 8 ++++----
 4 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/infrastructure_helpers.odin b/src/infrastructure_helpers.odin
index b8ce09b..6712592 100644
--- a/src/infrastructure_helpers.odin
+++ b/src/infrastructure_helpers.odin
@@ -99,7 +99,7 @@ delete_entity :: proc(self: ^Simulator, entity_index: u32, type: common.Entity)
 }
 
 // Returns a random node that has no cars on it
-get_free_node :: proc(self: ^Simulator) -> u32 {
+get_free_node :: proc(self: ^Simulator) -> Maybe(u32) {
 	car_occupied_nodes: [dynamic]u32
 	
 	for car in self.cars {
@@ -110,6 +110,8 @@ get_free_node :: proc(self: ^Simulator) -> u32 {
 		append(&car_occupied_nodes, node)
 	}
 	
+	if len(car_occupied_nodes) == len(self.nodes) do return nil
+	
 	for {
 		node := rand.uint32_max(u32(len(self.nodes)))
 		
diff --git a/src/input.odin b/src/input.odin
index 930f815..f87e2ba 100644
--- a/src/input.odin
+++ b/src/input.odin
@@ -27,7 +27,7 @@ handle_keyboard_input :: proc(self: ^Simulator) {
 
 	if !rl.IsKeyReleased(.N) || len(self.nodes) == 0 do return
 
-	car := v.car_init(u32(len(self.nodes)))
+	car := v.car_init(get_free_node(self), self.nodes[:])
 	append(&self.cars, car)
 }
 
diff --git a/src/pathfinding.odin b/src/pathfinding.odin
index 5235044..39beb15 100644
--- a/src/pathfinding.odin
+++ b/src/pathfinding.odin
@@ -12,7 +12,7 @@ get_path_to_destination :: proc(self: ^Simulator, source: u32, destination: u32)
 }
 
 // Returns if path is reachable from node => destination
-get_destination_reachable :: proc(self: ^Simulator, node_to_search: u32, destination: u32, nodes_to_ignore: ^[]u32) -> bool {
+get_destination_reachable :: proc(self: ^Simulator, node_to_search: u32, destination: u32, nodes_to_ignore: ^[dynamic]u32) -> bool {
 	if !self.nodes[node_to_search].enabled || common.list_contains(nodes_to_ignore[:], node_to_search) do return false
 	append(nodes_to_ignore, node_to_search)
 	
diff --git a/src/vehicles/car.odin b/src/vehicles/car.odin
index 330f797..9d19cf8 100644
--- a/src/vehicles/car.odin
+++ b/src/vehicles/car.odin
@@ -29,13 +29,13 @@ Car :: struct {
 }
 
 // Constructor
-car_init :: proc(node: u32, nodes: []inf.Node) -> Car {	
+car_init :: proc(spawn_node: u32, nodes: []inf.Node) -> Car {	
 	return {
 		fuel_level = common.FUEL_MAX,
 		max_speed = common.CAR_MAX_SPEED,
-		origin = node,
-		node_pos = node,
-		actual_pos = nodes[node].pos
+		origin = spawn_node,
+		node_pos = spawn_node,
+		actual_pos = nodes[spawn_node].pos
 	}
 }