From d987781b24c6f505a61a01794b6bc76b07c9b25d Mon Sep 17 00:00:00 2001
From: Joursoir <chat@joursoir.net>
Date: Mon, 8 Mar 2021 23:28:31 +0000
Subject: add infinity vehicle ride

---
 Vehicle.cpp |  5 +++++
 Vehicle.hpp | 10 ++++++++++
 main.cpp    | 48 ++++++++++++++++++++++++++++++++----------------
 3 files changed, 47 insertions(+), 16 deletions(-)

diff --git a/Vehicle.cpp b/Vehicle.cpp
index 3e71db4..9a5153c 100644
--- a/Vehicle.cpp
+++ b/Vehicle.cpp
@@ -23,3 +23,8 @@ bool Vehicle::Draw(int bound_x)
 
 	return ret;
 }
+
+int Vehicle::GetLength()
+{
+	return veh_info[type].length;
+}
\ No newline at end of file
diff --git a/Vehicle.hpp b/Vehicle.hpp
index 418a532..4e5e854 100644
--- a/Vehicle.hpp
+++ b/Vehicle.hpp
@@ -9,8 +9,18 @@ public:
 		: type(a_type), pos_y(a_y), pos_x(a_x) { }
 	~Vehicle() { }
 
+	int GetLength();
+
 	void MoveRight() { pos_x++; }
 	bool Draw(int bound_x); /* return false if not draw anything */
 };
 
+struct ll_vehicle {
+	Vehicle *data;
+	struct ll_vehicle *next;
+
+	ll_vehicle(Vehicle *a_data, struct ll_vehicle *a_ptr)
+		: data(a_data), next(a_ptr) { }
+};
+
 #endif /* ASCIIROAD_VEHICLE_H */
diff --git a/main.cpp b/main.cpp
index ca406f4..e5a781e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -39,15 +39,6 @@ void draw_background()
 	mvprintw(total_rows-3, 40, "       | |");
 	mvprintw(total_rows-2, 40, "       | |");
 	mvprintw(total_rows-1, 40, "______// \\\\");
-
-	refresh();
-}
-
-Vehicle *get_random_vehicle(int y, int x)
-{
-	Vehicle *car;
-	car = new Vehicle(rand() % veh_types_max, y, x);
-	return car;
 }
 
 int main(int argc, char *argv[])
@@ -63,24 +54,49 @@ int main(int argc, char *argv[])
 	getmaxyx(stdscr, total_rows, total_cols);
 
 	Vehicle *car = 0;
+	struct ll_vehicle *ptr_first = new struct ll_vehicle(0, 0);
+	struct ll_vehicle *ptr;
+	int wait_move = 0;
 	for(;;)
 	{
 		clear();
 		draw_background();
 
-		if(!car)
-			car = get_random_vehicle(total_rows, -1);
+		ptr = ptr_first;
+		while(ptr)
+		{
+			car = ptr->data;
+			if(!car) {
+				if(wait_move > 0)
+					break;
 
-		car->MoveRight();
-		if(!(car->Draw(total_cols))) {
-			delete car;
-			car = 0;
+				ptr->data = new Vehicle(
+					rand() % veh_types_max, total_rows, -1);
+				car = ptr->data;
+				wait_move = car->GetLength() + 3 + rand() % 10;
+
+				ptr->next = new struct ll_vehicle(0, 0);
+			}
+						
+			car->MoveRight();
+			if(!car->Draw(total_cols)) {
+				ptr = ptr->next;
+				delete car;
+				delete ptr_first;
+				ptr_first = ptr;
+				continue;
+			}
+
+			ptr = ptr->next;
 		}
 
+		if(wait_move > 0)
+			wait_move--;
+
 		refresh();
 		nanosleep(&my_timer, NULL);
 	}
-	
+
 	endwin();
 	return 0;
 }
-- 
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