Final improvements and refactorings

src/common/constants.odin

@@ -32,6 +32,3 @@ NODE_CURSOR_COLOUR    :: rl.BLUE
 NODE_SNAP_COLOUR      :: rl.PINK
 // The default colour of the text displayed
 TEXT_COLOUR		      :: rl.BLACK
-
-// Background Colour
-BACKGROUND_COLOUR  :: rl.LIGHTGRAY

src/common/structures.odin

@@ -10,6 +10,7 @@ Intersection_Data :: struct {
 	point: rl.Vector2,
 }
 
+// Tracks the entity type
 Entity :: enum {
 	Node,
 	Road,

src/draw.odin

@@ -7,7 +7,7 @@ import "common"
 
 // Main drawing function
 draw :: proc(self: ^Simulator, pos: rl.Vector2) {
-	rl.ClearBackground(common.BACKGROUND_COLOUR)
+	rl.ClearBackground(rl.LIGHTGRAY)
 	
 	// draw roads
 	for &road, index in self.roads {
@@ -33,12 +33,15 @@ draw :: proc(self: ^Simulator, pos: rl.Vector2) {
 	// draw temp road if exists
 	if val, ok := self.temp_node.?; ok {
 		rl.DrawLineEx(self.nodes[val].pos, pos, common.ROAD_SIZE, common.ROAD_COLOUR)
-		rl.DrawCircleV(pos, common.NODE_RADIUS, common.NODE_BUILD_COLOUR)
+		
+		rl.DrawCircleV(self.nodes[val].pos, common.NODE_RADIUS, common.NODE_BUILD_COLOUR)
+		rl.DrawCircleV(pos, common.NODE_RADIUS, common.NODE_CURSOR_COLOUR)
 	}
 	
 	draw_ui(self)
 }
 
+// Drawing UI text, mostly for debugging purposes
 @(private="file")
 draw_ui :: proc(self: ^Simulator) {
 	entity_count := fmt.ctprintf("Nodes: %d\nRoads: %d", len(self.nodes), len(self.roads))

src/infrastructure/node.odin

@@ -36,8 +36,7 @@ node_within_snapping_radius :: proc(self: ^Node, pos: rl.Vector2) -> bool {
 	)
 }
 
-// Tries to remove the road reference from the node;
-// Returns false if failed
+// Tries to remove the road reference from the node; returns false if failed
 node_unreference_road :: proc(self: ^Node, road_to_unref: u32) -> bool {
 	for i in 0..<len(self.roads) {
 		if self.roads[i] != road_to_unref do continue
@@ -49,6 +48,7 @@ node_unreference_road :: proc(self: ^Node, road_to_unref: u32) -> bool {
 	return false
 }
 
+// Attempts to update the existing road references with new one; returns false if it can't find the old reference
 node_update_road_reference :: proc(self: ^Node, old_ref: u32, new_ref: u32) -> bool {
 	for &road in self.roads {
 		if road != old_ref do continue

src/simulator.odin

@@ -41,6 +41,7 @@ update :: proc(self: ^Simulator, pos: rl.Vector2) {
 	update_highlighted_road(self, pos)
 }
 
+// Implementation of removing the road after a click has been registered
 @private
 demolish_road :: proc(self: ^Simulator) {
 	if !self.delete_mode do return
@@ -48,6 +49,7 @@ demolish_road :: proc(self: ^Simulator) {
 	if road, ok := self.highlighted_road.?; ok do delete_road(self, road)
 }
 
+// Implementation of road building after a click has been registered
 @private
 create_road :: proc(self: ^Simulator, pos: rl.Vector2) {
 	// BUILD
@@ -153,6 +155,7 @@ add_road :: proc(self: ^Simulator, start: u32, end: u32) {
 	append(&self.nodes[end].roads, road_index)
 }
 
+// Deletes the road which index was sent in, alongside deleting references of said road and removal of nodes if that road was their only connection
 @(private="file")
 delete_road :: proc(self: ^Simulator, road_to_delete: u32) {
 	// First we need to unreference this road from surrounding nodes and then delete those nodes IF this was the last road connection