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Using Weidu to Create Exit & Entrance Points

CoM_Solaufein

By CoM_Solaufein
in Modding Q&A

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CoM_Solaufein

CoM_Solaufein

Posted
Posted

I'm to paste some rather lengthy code at the bottom of my question here. If I was to use this code for a template for another mod, what information would I change in this and where would I get the information (WRITE_SHORT, WRITE_LONG) to do so?

 

I bolded what I guess would change if I was to use this on another mod with a different area.

 

// AR0400 gets new travel region and new entrance for CM7000
COPY_EXISTING ~AR0400.ARE~ ~override~
READ_LONG  0x54  "actors_offset"
READ_SHORT 0x58  "actors_num"
READ_SHORT 0x5a  "infotrig_num"
READ_LONG  0x5c  "infotrig_offset"
READ_LONG  0x60  "spawns_offset"
READ_LONG  0x64  "spawns_num"
READ_LONG  0x68  "entrances_offset"
READ_LONG  0x6c  "entrances_num"
READ_LONG  0x70  "cont_offset"
READ_SHORT 0x74  "cont_num"
READ_SHORT 0x76  "items_num"
READ_LONG  0x78  "items_offset"
READ_LONG  0x7c  "vert_offset"
READ_SHORT 0x80  "vert_num"
READ_SHORT 0x82  "amb_num"
READ_LONG  0x84  "amb_offset"
READ_LONG  0x88  "vars_offset"
READ_LONG  0x8c  "vars_num"
READ_LONG  0xa0  "expbmp_offset"
READ_LONG  0xa4  "doors_num"
READ_LONG  0xa8  "doors_offset"
READ_LONG  0xac  "anim_num"
READ_LONG  0xb0  "anim_offset"
READ_LONG  0xb4  "tiled_num"
READ_LONG  0xb8  "tiled_offset"
READ_LONG  0xbc  "songs_offset"
READ_LONG  0xc0  "rest_spawns_offset"
READ_LONG  0xc4  "automap_offset"
READ_LONG  0xc8  "automap_num"

//adding new trigger ************************************************
  SET offset = ("%infotrig_offset%"+0xc4*"%infotrig_num%")
  [b]INSERT_BYTES offset 0xc4
  WRITE_ASCII offset ~Tran7000~
  WRITE_SHORT (offset+0x20) 2			//travel trigger
  WRITE_SHORT (offset+0x22) 1526		 //bounding box
  WRITE_SHORT (offset+0x24) 794		  //bounding box
  WRITE_SHORT (offset+0x26) 1746		 //bounding box
  WRITE_SHORT (offset+0x28) 866		  //bounding box
  WRITE_SHORT (offset+0x2a) 4			//vertices number
  WRITE_LONG  (offset+0x2c) "%vert_num%" //first vertex index
  WRITE_LONG  (offset+0x34) 30		   //cursor
  WRITE_ASCII (offset+0x38) ~CM7000~	 //destination area
  WRITE_ASCII (offset+0x40) ~EXIT0400~   //destination area's entrance name
  WRITE_LONG  (offset+0x60) 0x00000004   //flags - party required
  WRITE_SHORT (offset+0x70) 1636		 //Trap location X
  WRITE_SHORT (offset+0x72) 830		  //Trap location Y[/b]
  SET "infotrig_num"="%infotrig_num%"+1
  WRITE_SHORT 0x5a  "%infotrig_num%"

  SET "info_ext"=0xc4
  PATCH_IF ("%actors_offset%">="%infotrig_offset%") BEGIN
 "actors_offset"="%actors_offset%"+"%info_ext%"
 WRITE_LONG  0x54 "%actors_offset%"
  END
  PATCH_IF ("%spawns_offset%">="%infotrig_offset%") BEGIN
 "spawns_offset"="%spawns_offset%"+"%info_ext%"
 WRITE_LONG  0x60  "%spawns_offset%"
  END
  PATCH_IF ("%entrances_offset%">="%infotrig_offset%") BEGIN
 "entrances_offset"="%entrances_offset%"+"%info_ext%"
 WRITE_LONG  0x68  "%entrances_offset%"
  END
  PATCH_IF ("%cont_offset%">="%infotrig_offset%") BEGIN
 "cont_offset"="%cont_offset%"+"%info_ext%"
 WRITE_LONG  0x70  "%cont_offset%"
  END
  PATCH_IF ("%items_offset%">="%infotrig_offset%") BEGIN
 "items_offset"="%items_offset%"+"%info_ext%"
 WRITE_LONG  0x78  "%items_offset%"
  END
  PATCH_IF ("%vert_offset%">="%infotrig_offset%") BEGIN
 "vert_offset"="%vert_offset%"+"%info_ext%"
 WRITE_LONG  0x7c  "%vert_offset%"
  END
  PATCH_IF ("%amb_offset%">="%infotrig_offset%") BEGIN
 "amb_offset"="%amb_offset%"+"%info_ext%"
 WRITE_LONG  0x84  "%amb_offset%"
  END
  PATCH_IF ("%vars_offset%">="%infotrig_offset%") BEGIN
 "vars_offset"="%vars_offset%"+"%info_ext%"
 WRITE_LONG  0x88  "%vars_offset%"
  END
  PATCH_IF ("%expbmp_offset%">="%infotrig_offset%") BEGIN
 "expbmp_offset"="%expbmp_offset%"+"%info_ext%"
 WRITE_LONG  0xa0  "%expbmp_offset%"
  END
  PATCH_IF ("%doors_offset%">="%infotrig_offset%") BEGIN
 "doors_offset"="%doors_offset%"+"%info_ext%"
 WRITE_LONG  0xa8  "%doors_offset%"
  END
  PATCH_IF ("%anim_offset%">="%infotrig_offset%") BEGIN
 "anim_offset"="%anim_offset%"+"%info_ext%"
 WRITE_LONG  0xb0  "%anim_offset%"
  END
  PATCH_IF ("%tiled_offset%">="%infotrig_offset%") BEGIN
 "tiled_offset"="%tiled_offset%"+"%info_ext%"
 WRITE_LONG  0xb8  "%tiled_offset%"
  END
  PATCH_IF ("%songs_offset%">="%infotrig_offset%") BEGIN
 "songs_offset"="%songs_offset%"+"%info_ext%"
 WRITE_LONG  0xbc  "%songs_offset%"
  END
  PATCH_IF ("%rest_spawns_offset%">="%infotrig_offset%") BEGIN
 "rest_spawns_offset"="%rest_spawns_offset%"+"%info_ext%"
 WRITE_LONG  0xc0  "%rest_spawns_offset%"
  END
  PATCH_IF ("%automap_offset%">="%infotrig_offset%") BEGIN
 "automap_offset"="%automap_offset%"+"%info_ext%"
 WRITE_LONG  0xc4  "%automap_offset%"
  END

 //adding 4 new vertices for triggers
  SET offset = ("%vert_offset%"+0x04*"%vert_num%")
  [b]INSERT_BYTES offset (0x04*4)
  WRITE_SHORT  offset	  1526
  WRITE_SHORT  (offset+2)  808
  WRITE_SHORT  (offset+4)  1741
  WRITE_SHORT  (offset+6)  793
  WRITE_SHORT  (offset+8)  1746
  WRITE_SHORT  (offset+10) 855
  WRITE_SHORT  (offset+12) 1534
  WRITE_SHORT  (offset+14) 866[/b]
  SET "vert_num"="%vert_num%"+4
  WRITE_SHORT 0x80  "%vert_num%"

  SET "info_ext"=0x04*4
  PATCH_IF ("%actors_offset%">="%vert_offset%") BEGIN
 "actors_offset"="%actors_offset%"+"%info_ext%"
 WRITE_LONG  0x54 "%actors_offset%"
  END
  PATCH_IF ("%spawns_offset%">="%vert_offset%") BEGIN
 "spawns_offset"="%spawns_offset%"+"%info_ext%"
 WRITE_LONG  0x60  "%spawns_offset%"
  END
  PATCH_IF ("%entrances_offset%">="%vert_offset%") BEGIN
 "entrances_offset"="%entrances_offset%"+"%info_ext%"
 WRITE_LONG  0x68  "%entrances_offset%"
  END
  PATCH_IF ("%cont_offset%">="%vert_offset%") BEGIN
 "cont_offset"="%cont_offset%"+"%info_ext%"
 WRITE_LONG  0x70  "%cont_offset%"
  END
  PATCH_IF ("%items_offset%">="%vert_offset%") BEGIN
 "items_offset"="%items_offset%"+"%info_ext%"
 WRITE_LONG  0x78  "%items_offset%"
  END
  PATCH_IF ("%infotrig_offset%">="%vert_offset%") BEGIN
 "infotrig_offset"="%infotrig_offset%"+"%info_ext%"
 WRITE_LONG  0x5c  "%infotrig_offset%"
  END
  PATCH_IF ("%amb_offset%">="%vert_offset%") BEGIN
 "amb_offset"="%amb_offset%"+"%info_ext%"
 WRITE_LONG  0x84  "%amb_offset%"
  END
  PATCH_IF ("%vars_offset%">="%vert_offset%") BEGIN
 "vars_offset"="%vars_offset%"+"%info_ext%"
 WRITE_LONG  0x88  "%vars_offset%"
  END
  PATCH_IF ("%expbmp_offset%">="%vert_offset%") BEGIN
 "expbmp_offset"="%expbmp_offset%"+"%info_ext%"
 WRITE_LONG  0xa0  "%expbmp_offset%"
  END
  PATCH_IF ("%doors_offset%">="%vert_offset%") BEGIN
 "doors_offset"="%doors_offset%"+"%info_ext%"
 WRITE_LONG  0xa8  "%doors_offset%"
  END
  PATCH_IF ("%anim_offset%">="%vert_offset%") BEGIN
 "anim_offset"="%anim_offset%"+"%info_ext%"
 WRITE_LONG  0xb0  "%anim_offset%"
  END
  PATCH_IF ("%tiled_offset%">="%vert_offset%") BEGIN
 "tiled_offset"="%tiled_offset%"+"%info_ext%"
 WRITE_LONG  0xb8  "%tiled_offset%"
  END
  PATCH_IF ("%songs_offset%">="%vert_offset%") BEGIN
 "songs_offset"="%songs_offset%"+"%info_ext%"
 WRITE_LONG  0xbc  "%songs_offset%"
  END
  PATCH_IF ("%rest_spawns_offset%">="%vert_offset%") BEGIN
 "rest_spawns_offset"="%rest_spawns_offset%"+"%info_ext%"
 WRITE_LONG  0xc0  "%rest_spawns_offset%"
  END
  PATCH_IF ("%automap_offset%">="%vert_offset%") BEGIN
 "automap_offset"="%automap_offset%"+"%info_ext%"
 WRITE_LONG  0xc4  "%automap_offset%"
  END

//adding 1 new entrance
SET offset = ("%entrances_offset%"+0x68*"%entrances_num%")
[b]INSERT_BYTES offset 0x68
WRITE_ASCII  offset	  ~Exit7000~
WRITE_SHORT  (offset+0x20)  1626	 //X
WRITE_SHORT  (offset+0x22)  759	  //Y
WRITE_LONG   (offset+0x24)  "9"	  // facing[/b]
SET "entrances_num"="%entrances_num%"+1
WRITE_LONG 0x6c  "%entrances_num%"

SET "info_ext"=0x68
PATCH_IF ("%actors_offset%">="%entrances_offset%") BEGIN
  "actors_offset"="%actors_offset%"+"%info_ext%"
  WRITE_LONG  0x54 "%actors_offset%"
END
PATCH_IF ("%spawns_offset%">="%entrances_offset%") BEGIN
  "spawns_offset"="%spawns_offset%"+"%info_ext%"
  WRITE_LONG  0x60  "%spawns_offset%"
END
PATCH_IF ("%vert_offset%">="%entrances_offset%") BEGIN
  "vert_offset"="%vert_offset%"+"%info_ext%"
  WRITE_LONG  0x7c  "%vert_offset%"
END
PATCH_IF ("%cont_offset%">="%entrances_offset%") BEGIN
  "cont_offset"="%cont_offset%"+"%info_ext%"
  WRITE_LONG  0x70  "%cont_offset%"
END
PATCH_IF ("%items_offset%">="%entrances_offset%") BEGIN
  "items_offset"="%items_offset%"+"%info_ext%"
  WRITE_LONG  0x78  "%items_offset%"
END
PATCH_IF ("%infotrig_offset%">="%entrances_offset%") BEGIN
  "infotrig_offset"="%infotrig_offset%"+"%info_ext%"
  WRITE_LONG  0x5c  "%infotrig_offset%"
END
PATCH_IF ("%amb_offset%">="%entrances_offset%") BEGIN
  "amb_offset"="%amb_offset%"+"%info_ext%"
  WRITE_LONG  0x84  "%amb_offset%"
END
PATCH_IF ("%vars_offset%">="%entrances_offset%") BEGIN
  "vars_offset"="%vars_offset%"+"%info_ext%"
  WRITE_LONG  0x88  "%vars_offset%"
END
PATCH_IF ("%expbmp_offset%">="%entrances_offset%") BEGIN
  "expbmp_offset"="%expbmp_offset%"+"%info_ext%"
  WRITE_LONG  0xa0  "%expbmp_offset%"
END
PATCH_IF ("%doors_offset%">="%entrances_offset%") BEGIN
  "doors_offset"="%doors_offset%"+"%info_ext%"
  WRITE_LONG  0xa8  "%doors_offset%"
END
PATCH_IF ("%anim_offset%">="%entrances_offset%") BEGIN
  "anim_offset"="%anim_offset%"+"%info_ext%"
  WRITE_LONG  0xb0  "%anim_offset%"
END
PATCH_IF ("%tiled_offset%">="%entrances_offset%") BEGIN
  "tiled_offset"="%tiled_offset%"+"%info_ext%"
  WRITE_LONG  0xb8  "%tiled_offset%"
END
PATCH_IF ("%songs_offset%">="%entrances_offset%") BEGIN
  "songs_offset"="%songs_offset%"+"%info_ext%"
  WRITE_LONG  0xbc  "%songs_offset%"
END
PATCH_IF ("%rest_spawns_offset%">="%entrances_offset%") BEGIN
  "rest_spawns_offset"="%rest_spawns_offset%"+"%info_ext%"
  WRITE_LONG  0xc0  "%rest_spawns_offset%"
END
PATCH_IF ("%automap_offset%">="%entrances_offset%") BEGIN
  "automap_offset"="%automap_offset%"+"%info_ext%"
  WRITE_LONG  0xc4  "%automap_offset%"
END

BUT_ONLY_IF_IT_CHANGES  //********************************************************  ~AR0400.are~

Link to comment
Miloch

Miloch

Posted
Posted
I bolded what I guess would change if I was to use this on another mod with a different area.
Maybe my vision isn't so good these days, or the bolded text didn't transfer. I believe Red Carnelian may have code dealing with the same issue in his Stone of Askavar update (hosted on your own site :rant:).
Link to comment
Yovaneth

Yovaneth

Posted
Posted

If all you are doing is adding entrances and exits, then you don't need all of that. This is what I have used successfully to add entrances and exits to many different areas:-

 

//**************************************************
//Modify existing areas to accept new entrances and exits
//**************************************************
//Ceinwen's house

COPY_EXISTING ~ar0400.are~ ~override~
// We start by reading offsets and numbers
READ_SHORT 0x5a "trig_num"
READ_LONG  0x5c "trig_off"
READ_LONG  0x60 "spawn_off"
READ_LONG  0x68 "ent_off"
READ_SHORT 0x6c "ent_num"
READ_LONG  0x70 "cont_off"
READ_LONG  0x78 "item_off"
READ_LONG  0x7c "vert_off"
READ_SHORT 0x80 "vert_num"
READ_LONG  0x84 "amb_off"
READ_LONG  0x88 "var_off"
READ_LONG  0xa0 "bmp_off"
READ_LONG  0xa8 "door_off"
READ_LONG  0xb0 "anim_off"
READ_LONG  0xb8 "tiled_off"
READ_LONG  0xbc "song_off"
READ_LONG  0xc0 "rest_off"
READ_LONG  0xc4 "note_off"
// Add 4 vertices
INSERT_BYTES  ("%vert_off%" + ("%vert_num%" * 0x4)	  ) 0x10
  WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4)	  ) 2844
  WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0x2) 2963
  WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0x4) 2776
  WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0x6) 2998
  WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0x8) 2776
  WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0xa) 3050
  WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0xc) 2843
  WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0xe) 3021
// Now, we add a new entrance. Yippie!
INSERT_BYTES  ("%ent_off%" + ("%ent_num%" * 0x68)	   ) 0x68
  WRITE_ASCII ("%ent_off%" + ("%ent_num%" * 0x68)	   ) ~Exitys0310~   // Name of the new entrance
  WRITE_SHORT ("%ent_off%" + ("%ent_num%" * 0x68) + 0x20) 2889		  // Location: X
  WRITE_SHORT ("%ent_off%" + ("%ent_num%" * 0x68) + 0x22) 3038		  // Location: Y
  WRITE_SHORT ("%ent_off%" + ("%ent_num%" * 0x68) + 0x24) 12			// Directional facing
// First, we insert the new trigger by adding 196 bytes at a specific location in the file, then we patch it :)
INSERT_BYTES  ("%trig_off%" + ("%trig_num%" * 0xc4)	   ) 0xc4
  WRITE_ASCII ("%trig_off%" + ("%trig_num%" * 0xc4)	   ) ~Travys0310~   // Name of the new trigger
  WRITE_SHORT ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x20) 0x02		 // Which trigger type? 2=travel
  WRITE_SHORT ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x22) 2776		  // Bounding box = most westerly point...
  WRITE_SHORT ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x24) 2963		  // Bounding box = most northerly point...
  WRITE_SHORT ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x26) 2844		  // Bounding box = most easterly point...
  WRITE_SHORT ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x28) 3050		  // Bounding box = most southerly point... (from the vertices list)
  WRITE_SHORT ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x2a) 0x04		 // Number of vertices
  WRITE_LONG  ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x2c) "%vert_num%" // First vertex index
  WRITE_LONG  ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x34) 0x2a		 // Cursor index
  WRITE_ASCII ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x38) ~ys0310~	 // Destination area
  WRITE_ASCII ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x40) ~Exitar0400~   // Exit point in the destination area
  WRITE_LONG  ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x60) 0x04		 // Flags
  SAY		 ("%trig_off%" + ("%trig_num%" * 0xc4) + 0x64) #-1		  // Trigger Text
// Code wrapup - need to adjust numbers of vertices and triggers and adjust offsets
WRITE_SHORT 0x80 ("%vert_num%" + 0x04) // Four new vertices
WRITE_SHORT 0x5a ("%trig_num%" + 0x01) // One new trigger
WRITE_SHORT 0x6c ("%ent_num%"  + 0x01) // One new entrance
// Remember that even if the offset-fields are listed in one certain order, the offsets aren't
SET "adj" = 0xc4
WRITE_LONG 0x60 ("%spawn_off%" + "%adj%")
WRITE_LONG 0x68 ("%ent_off%"   + "%adj%")
SET "adj" = (0xc4 + 0x68)
WRITE_LONG 0x70 ("%cont_off%"  + "%adj%")
WRITE_LONG 0x78 ("%item_off%"  + "%adj%")
WRITE_LONG 0x7c ("%vert_off%"  + "%adj%")
WRITE_LONG 0x84 ("%amb_off%"   + "%adj%")
WRITE_LONG 0x88 ("%var_off%"   + "%adj%")
WRITE_LONG 0xa8 ("%door_off%"  + "%adj%")
WRITE_LONG 0xb8 ("%tiled_off%" + "%adj%")
SET "adj" = (0xc4 + 0x68 + 0x10)
WRITE_LONG 0xa0 ("%bmp_off%"   + "%adj%")
WRITE_LONG 0xb0 ("%anim_off%"  + "%adj%")
WRITE_LONG 0xbc ("%song_off%"  + "%adj%")
WRITE_LONG 0xc0 ("%rest_off%"  + "%adj%")
WRITE_LONG  0xc4 ("%note_off%"  + "%adj%")
BUT_ONLY_IF_IT_CHANGES

 

This adds a simple four-point travel region and a single entrance.

 

-Y-

Link to comment
Nythrun

Nythrun

Posted
Posted

Those two blocks do the same three things :rant:

 

The second one has the disadvantage of assuming that the .are is structured in the usual order, which is not necessarily true.

 

The first doesn't, so it's a bit longer (though x = x + 1 should not be used as shorthand for SET x = x + 1 - it shouldn't lead to any ambiguity here, but it's still a bad habit :) )

Link to comment
devSin

devSin

Posted
Posted
The first doesn't, so it's a bit longer (though x = x + 1 should not be used as shorthand for SET x = x + 1 - it shouldn't lead to any ambiguity here, but it's still a bad habit :) )
What are you talking about? It's equivalent and should be considered the preferred usage IMO (actually, most preferable would be x += 0x1).

 

You only need SET in two instances (the first patch in a TP action and after evil patches like SAY and PATCH_PRINT). Don't use it anywhere else; you will be considered l33t.

Link to comment
Nythrun

Nythrun

Posted
Posted

Yes, but you need to use SET after "evil" patches, and you never need to not use it.

 

I'm a fan of += notation also, but it's only usable in patches, not actions.

 

Not going to recommend shortcuts without a list of where they're inapplicable, especially when people in general aren't even using NO_IF_EVAL_BUG and haven't read the process_patch vs process_patch2 tutorial because it doesn't exist :rant:

Link to comment
CoM_Solaufein

CoM_Solaufein

Posted
  • Author
Posted

In Yovaneth's example, which I would use as a template for adding entrances and exits in my mod, where do you get the numbers for:

 

INSERT_BYTES ("%vert_off%" + ("%vert_num%" * 0x4) ) 0x10

WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) ) 2844

WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0x2) 2963

WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0x4) 2776

WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0x6) 2998

WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0x8) 2776

WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0xa) 3050

WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0xc) 2843

WRITE_SHORT ("%vert_off%" + ("%vert_num%" * 0x4) + 0xe) 3021

 

entrance

WRITE_SHORT ("%ent_off%" + ("%ent_num%" * 0x68) + 0x20) 2889

WRITE_SHORT ("%ent_off%" + ("%ent_num%" * 0x68) + 0x22) 3038

WRITE_SHORT ("%ent_off%" + ("%ent_num%" * 0x68) + 0x24) 12

 

and so on. I would guess those numbers change when you make your own entrance and exit?

Link to comment
Yovaneth

Yovaneth

Posted
Posted

The line

 

WRITE_SHORT ("%ent_off%" + ("%ent_num%" * 0x68) + 0x24) 12

 

is the direction you want the party to face when they enter the area. In this case 12=East, where 0=South, 1=South-SouthWest, 2=SouthWest, 3=West-SouthWest etc.

 

-Y-

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