Difference between revisions of "Myst VIEW resources"
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Each sound specification is a single short, followed by a second one if it's not negative or -2, similarly to what happens for the first field of the section. | Each sound specification is a single short, followed by a second one if it's not negative or -2, similarly to what happens for the first field of the section. | ||
| − | == | + | ==Element list== |
| − | + | This section seems to list elements (pictures, sounds) available to the card. It is suspected that those elements can then be activated by scripts. | |
| + | {| class="structure" | ||
| + | |unsigned short||count | ||
| + | |- | ||
| + | |variable||element specifications | ||
| + | |} | ||
| + | Each specification is an unsigned short ''type'', followed by a resource ID. However, as a special case, if ''type'' = 3 it is followed by a conditional block with structure | ||
| + | {| class="structure" | ||
| + | |unsigned short||variable | ||
| + | |- | ||
| + | |unsigned short||id_count | ||
| + | |- | ||
| + | |unsigned short||u0 | ||
| + | |- | ||
| + | |unsigned short||ids[id_count] | ||
| + | |} | ||
==Glue segment== | ==Glue segment== | ||
Revision as of 13:39, 15 September 2008
| Myst | |||
| Mohawk | Overview | ||
| CLRC | EXIT | HINT | INIT |
| MJMP | MSND | PICT | RLST |
| VIEW | WDIB | HELP | RSFL |
| Scripts | Variables | ||
VIEW resources are the candidate Myst card representations, as they glue other resources together. In particular they seem to describe what to show on screen, what sound to play and where to find additional data about the card.
Original hints by Petroff Heroj.
Contents
Basic Format
The data is split into five sections with variable size and different meanings:
- card flags
- pictures
- sounds
- element list
- other resources
Card flags
This is just
| unsigned short | card_flags |
card_flags seems either 0 or 1. It's 0 for regular cards, while 1 is suspected to disable game saving in that card.
Picture section
This section defines the card background picture, which may be static or dependent on the values of variables. The section starts with
| unsigned short | count |
If count = 0 then there is a single, static background picture and the whole section reduces to
| unsigned short | count = 0 |
| unsigned short | picture_id |
where picture_id is the WDIB (or PICT) resource ID.
Otherwise, if count > 0, the section contains count conditional blocks:
| unsigned short | count |
| variable | conditional blocks |
Each conditional block associates a variable with an array of picture IDs:
| unsigned short | variable |
| unsigned short | id_count |
| short | picture_ids[id_count] |
The card will use the value of the specified variable to index the ID array and display that picture.
Sound section
This section specifies ambient sounds for the card.
| short | sound |
If sound is -1 or -3, the section stops here.
If sound is not negative or -2, the section includes a second field:
| short | sound |
| unsigned short | flags |
Finally, if sound is -4, there is a conditional block similar to those in the picture section:
| short | sound = -4 |
| unsigned short | variable |
| unsigned short | count |
| variable | sound specifications |
Each sound specification is a single short, followed by a second one if it's not negative or -2, similarly to what happens for the first field of the section.
Element list
This section seems to list elements (pictures, sounds) available to the card. It is suspected that those elements can then be activated by scripts.
| unsigned short | count |
| variable | element specifications |
Each specification is an unsigned short type, followed by a resource ID. However, as a special case, if type = 3 it is followed by a conditional block with structure
| unsigned short | variable |
| unsigned short | id_count |
| unsigned short | u0 |
| unsigned short | ids[id_count] |
Glue segment
The final section points to associated resources that further describe the card, namely RLST, HINT, INIT and EXIT:
| unsigned short | rlst_id |
| unsigned short | hint_id |
| unsigned short | init_id |
| unsigned short | exit_id |
These values can be zero, indicating that the corresponding resource does not exist (i.e. a card might not have an associated HINT). It happens that all the IDs match the VIEW ID when they are not zero. Furthermore, rlst_id is always set: no cards exist without hotspot descriptions.
Old Case Studies
image name and sub-images (akin to Riven PLSTs)
| 0 | 0 | 3001 | -1 | 0/0 | 3001 | 3001 | 0 | 0 |
| name | neg. | bytes | (name name 0 0) | |||||
| 0 | 0 | 3002 | -2 | 0/144 | 0 | 3002 | 3002 | 0 | 0 | |
| 0 | 0 | 3003 | -2 | 0/144 | 1 | [1 3004] | 3003 | 3003 | 0 | 0 |
| name | ? | count | entry | (name name 0 0) | ||||||
- I think 3004 is the name of a sub-image (small image to be placed in another) of 3003 here.
| 0 | 0 | 3005 | 3005 | 0/144 | 1 | [1 3006] | 3005 | 3005 | 0 | 0 |
| name twice | (name name 0 0) | |||||||||
| 0 | 0 | 3012 | -2 | 0/50 | 5 | [1 3013] | [1 3008] | [1 3009] | [1 3010] | [1 3011] | 3012 | 0 | 0 | 3012 |
| name | ? | count | entries | (name 0 0 name) | ||||||||||
| 14 | 1 | 1 | 5 | 2 | 3030 | 3031 | FFFC 3 2 3031 00_A0 | 4031 | x00A0 | 2 | 2 4030 | 1 3030 | 3031 | 3031 | 0 | 0 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 44 | 1 | 1 | 2 | 2 | 3095 | 3096 | FFFC 15 2 3095 00_A0 | 4095 | x00A0 | 4 | 2 4095 | 1 3562 | 1 3097 | 2 5095 | 3095 | 3095 | 3095 | 0 |
| 348 | 1 | 1 | 16 | 2 | 3536 | 3535 | 3535 | x0060 | 0 | 3535 | 3535 | 0 | 0 | |||||
| 359 | 1 | 1 | 5 | 2 | 3550 | 3552 | FFFC 3 2 6552 00_80 | 3552 | x0080 | 4 | 4 3550 | 4 3552 | 2 4552 | 2 5552 | 3552 | 3552 | 0 | 0 |
| 47 | 1 | 1 | 10 | 2 | 4140 | 4141 | 5141 | x0090 | 1 | 2 4141 | 4141 | 4141 | 4141 | 4141 | ||||
| 50 | 1 | 1 | 10 | 2 | 4148 | 4149 | 4149 | x0090 | 0 | 4149 | 4149 | 4149 | 0 | |||||
| 51 | 1 | 1 | 10 | 2 | 4150 | 4151 | FFFE | x0070 | 0 | 4150 | 4150 | 0 | 0 | |||||
| 94 | 1 | 1 | 10 | 2 | 4243 | 4244 | 4244 | x0050 | 0 | 4244 | 4244 | 0 | 0 | |||||
| 116 | 1 | 1 | 40 | 2 | 4292 | 4294 | FFFC 40 2 4292 00_50 | 4292 | x0060 | 2 | 1 4293 | 2 5292 | 4292 | 4292 | 0 | 0 | ||
| 145 | 1 | 1 | 0 | 2 | 4358 | 4357 | FFFE | x0030 | 0 | 4357 | 4357 | 0 | 0 | |||||
| 287 | 1 | 1 | 34 | 3 | 4698 | 4701 | 4702 | xFFFD | 4 | 1 4699 | 2 4698 | 2 5698 | 2 6698 | 4698 | 4698 | 4698 | 4698 | |
| 295 | 1 | 1 | 10 | 2 | 4717 | 4719 | 4717 | x0040 | 1 | 1 4718 | 4717 | 4717 | 0 | 0 |
