Determining vehicle direction on roads

[CommanderABab]

How to change the standard movement on roads:

Remember, arrays start with 0.

innerr.png (2.04 KiB) Viewed 16254 times

Subtile Order of Each Road Tile:

..........
..... 2
. 0 3
..... 1
..........


Moving direction is the sum of:
(This is from one of the subtiles above; a vehicle has reached this spot, the sum equals the possible directions it can go from here.)
1
2
4
8

So, "No direction" would be 0. Thus the vehicle would stop and most likely despawn. All directions would be 15 (for intersections).

An example of dirs for a two way road (24 number array):
(Dirs need to be provided for the frame in the comments, the others are determined from these)

Code: Select all

    "dirs":[
      12,9,3,6 , //0
      1, 1, 8,4,  //1
   
      1,1, 8, 2,  //3
  
      9,9,6,6, //5
    
      1, 3, 12, 6,  //7
  
      13,11,14,7 //15
    ]

An example of dirs for a one way road (64 number array):
(One for each of the first 15 road frames, the others are adapted from these.)

Code: Select all

      "dirs":[
       0,0,0,0,
       1,1,1,1,
       2,2,2,2,
       1,1,9,1,
       4,4,4,4,
       9,9,3,3,
       3,2,2,2,
       3,3,3,3,
       8,8,8,8,
       3,3,1,1,
       6,3,6,3,
       3,3,3,3,
       9,8,9,8,
       9,9,9,9,
       6,6,6,6,
       11,11,11,11
    ]

Note: the numbers in these examples are from my b3.plugin, which allows non-standard road movements so that cars can switch lanes across 3 or more lanes from the inner 2 way road straight sections across the straight sections of the one way roads placed adjacent. Thus, the cars may be seen driving off the side of ramps.

[CommanderABab]

So, you may see the t intersection directions better.

7,11,13,14 above are the t intersections. The yellow line though the center has breaks instead of being solid.

[Mg3094066]

Aaaaaaa my head will exlode D:

[CommanderABab]

How to change the standard movement on roads:

Remember, arrays start with 0.

Subtile Order of Each Road Tile:

..........
..... 2
. 0 3
..... 1
..........


Moving direction is the sum of:
(This is from one of the subtiles above; a vehicle has reached this spot, the sum equals the possible directions it can go from here.)
1
2
4
8

So, "No direction" would be 0. Thus the vehicle would stop and most likely despawn. All directions would be 15 (for intersections).

An example of dirs for a two way road (24 number array):
(Dirs need to be provided for the frame in the comments, the others are determined from these)

Code: Select all

    "dirs":[
      12,9,3,6 , //0
      1, 1, 8,4,  //1
   
      1,1, 8, 2,  //3
  
      9,9,6,6, //5
    
      1, 3, 12, 6,  //7
  
      13,11,14,7 //15
    ]

An example of dirs for a one way road (64 number array):
(One for each of the first 15 road frames, the others are adapted from these.)

Code: Select all

      "dirs":[
       0,0,0,0,
       1,1,1,1,
       2,2,2,2,
       1,1,9,1,
       4,4,4,4,
       9,9,3,3,
       3,2,2,2,
       3,3,3,3,
       8,8,8,8,
       3,3,1,1,
       6,3,6,3,
       3,3,3,3,
       9,8,9,8,
       9,9,9,9,
       6,6,6,6,
       11,11,11,11
    ]

Note: the numbers in these examples are from my b3.plugin, which allows non-standard road movements so that cars can switch lanes across 3 or more lanes from the inner 2 way road straight sections across the straight sections of the one way roads placed adjacent. Thus, the cars may be seen driving off the side of ramps.

[CommanderABab]

Code: Select all

    "dirs":[
      12,9,3,6 , //0
      1, 1, 8,4,  //1
      1,1, 8, 2,  //3
      9,9,6,6, //5
      8, 1, 6, 6,  //7
      8,1,4,2 //15
    ]

Where will it go?

[CommanderABab]

Currently used in green road special:

Code: Select all

    "dirs":[
      12,9,3,6 , //0
      1, 1, 8,4,  //1
      1,1, 8, 2,  //3
      9,9,6,6, //5
      9, 1, 6, 6,  //7
      8,1,4,2 //15
    ]

[Lakan Haraya]

Code: Select all

    "dirs":[
      12,9,3,6 , //0
      1, 1, 8,4,  //1
      1,1, 8, 2,  //3
      9,9,6,6, //5
      8, 1, 6, 6,  //7
      8,1,4,2 //15
    ]

Where will it go?

Answer key
Conversion to moving directions
↖&↙,↘&↙,↗&↖,↘&↗ //0 (frame 0)
↘,↘,↙,↖ //1 (frame 1)
↘,↘,↙,↗ //3 (frame 3)
↘&↙,↘&↙,↗&↖,↗&↖ //5 (frame 5)
↙,↘,↗&↖,↗&↖ //7 (frame 7)
↙,↘,↖,↗ //15 (frame 15)

I think frame 0 won't spawn in this moving directions, frame 1 looks like a U-turn slot, frame 3 is a 2-way road turning to the perpendicular row of tiles, frame 5 seems to be a 2-way road bounded intersection for directions 2 ↗ (for 4 ↖) and 8 ↙ (for 1 ↘), frame 7 is more like these sequence... ↙,↘,↖↗,↖↗ ...
Frame 15 is fully bounded intersection (I mean, the vehicles will only turn right in the corner)

To illustrate:

[CommanderABab]

I'm glad that you are taking interest.

Frame 0 is just a single road tile unconnected. The idea here is if a car spawns here, it will move to an adjacent road if available.

Note my restored post above showing what I currently use in Green Road Special.

You are correct about frame 15.

Frame 1 is the end section of the road.

Frame 3 is the curve of the road.

Frame 5 is the straight of the road, connected on both ends. The idea here is that this two way section can be used as a median section between two one way spans. Cars can thus move to the one way spans also, in addition to going straight.

You are correct about frame 7 as you quoted it, but in the actual plugin, cars can also go straight instead of being forced to turn right. But I still do not allow the left turn. And, on the far side of the T, it still behaves as the straight section.

[Lakan Haraya]

I thought about it one night... I knew it!
It is interesting for traffic management and I think it could be a helpful tool to create real-life gas station in the game... I mean, passing cars beneath the station's roof... :/

[choggoba]

I have a question.
1. Why did you define only 0,1,3,5,7,15 frames?
2. May I have the frame number of 16 one way road?

[ian`]

I have a question.
1. Why did you define only 0,1,3,5,7,15 frames?

I think there are the first number of road rotation frames.

Code: Select all

0              // haven't rotation frames
1 - 2 - 4 - 8
3 - 6 - 9 - 12
5 - 10
7 - 11 - 13 14
15

2. May I have the frame number of 16 one way road?

Yes, just count the frames from 1 not 0. lol
If you mean there are be more than 64 arrays, i think you can't and what for is it?

[mbetixz]

thanks for awesome tutorial, its will be helpful now

[imajoke]

Can I have the dirs for the actual one way road? I still want to make a road where cars can pass (I dont care about if its safe for them or not)

[CERRERA]

Hello
I need help
Its possible to make my diagonal" as half way road

one way.png (22.21 KiB) Viewed 11453 times

When I try to make 1 way diagonal this was happened

[burgernamn]

im losing braincells every minute i try to understand this

[Guest]

Show

id : adjacency
0 = None
1 = South
2 = East
3 = South and east
4 = North
5 = North and south
6 = North and east
7 = North and south and east
8 = West
9 = West and south
10 = West and east
11 = West and south and east
12 = West and north
13 = West and north and south
14 = West and north and east
15 = West and north and south and east

Basically all four cardinal directions are a bit. 1 is south, 2 is east, 4 is north and 8 is west. By adding the bits you get the frame id.

arrowframes.png (2.33 KiB) Viewed 9133 times