legend-of-dragoon-modding / severed-chains Goto Github PK

A lot of models have incorrect palettes applied to certain texture pieces (e.g. Dart's red boots, static-noise horses).

1. Entered first save point.
2. Opened main menu
3. Navigated to Save
4. Opened save menu
5. Exited save menu without doing anything
6. Controls stopped working

Note - I don't think it's actually possible to have multiple negative status effects at once.

If a player is afflicted with both a mind and body status at the same time, a single status-healing item cures all negative status effects, not just the ones they're supposed to.

Maybe we should fix this and add an option to enable multiple status effects for increased difficulty?

Try to replace character - assertion error

HP/MP/etc text that should be white is red, yellow is blue, etc

n * 0x8080_8081 >>> 39 ~= n/255
n * 0x8888_8889 >>> 37 ~= n/60
n * 0x8888_8889 >>> 32 ~= n*15/8
n * 0x6666_6667 >>> 35 ~= n/20
n * 0x8102_0409 >>> 38 ~= n/127
n * 0xcccc_cccd >>> 35 ~= n/10
n * 0xd1b7_1759 >>> 45 ~= n/10_000
n * 0x431b_de83 >>> 50 ~= n/1_000_000
n * 0x0a7c_5ac5 >>> 39 ~= n/3_125
n * 0x00ff_f001 >>> 36 ~= n/4_097
n * 0xff80_3fe1 >>> 39 ~= n/513
n * 0x0fe0_3f81 >>> 35 ~= n/129
n * 0x1a1f_58d1 ~= n/49

I overwrote a save game, and the data displayed on the load game screen was as expected; however, once loaded, some of the data was from the saved game I overwrote. For example, HP/time played was from the old save, but the potion I used was consumed.

When the camera in the crossroads fades in, it is slightly past the edge of the background texture. Instead of being black-filled, it repeats the edge textures to the edge of the "screen".

It seems to be rendering over and blending with itself. See 800e4934 for code.

This may have been a fluke in my playthrough (possibly even something I did manually and forgot about) but Dart started at D'lvl 5. Someone needs to play through up until Dart gets his Dragoon spirit and see if it happens again.

Collision is probably about 90%, but not quite accurate. For example, rubbing against some collision barriers can cause you to teleport into the abyss.

When you complete an addition, the text that pops up on the right side of the screen has each letter incremented by one (Harpoon -> Ibsqppo)

If you leave the game running for long enough it'll run out of memory

What it says on the tin.

Yeah that pretty much sums it up

It seems that enemies can't hit with regular attacks. Magic attacks work, however.

Some (all?) TMD (and other?) files inside of MRG files have an extra header before they start that looks like this:

0h (4 bytes) - offset to actual start of file
4h (4 bytes) - optional relative pointer (may be 0) - appears to be a relative pointer to an array of 4 relative pointers. If present, a 30h-byte struct is allocated on the memory management linked list and the array of relative pointers is resolved to absolute pointers and copied to the 30h-byte struct at +20h (see SMAP function 800de004).
8h (4 bytes) - optional pointer offset (may be 0) - I think this is a relative pointer to an array of 7 relative pointers. If present, the relative pointers are resolved to absolute pointers and stored in BigStruct at +d0. Note that there are several other 7-element arrays in BigStruct that are related.
... (Do some of these files have more data here? +0h is an offset to the start of the actual file. The only value I've seen so far is 0xc, but there could be others)
?h - The start of the actual file - actual offset is the value at +0h

The loader code is also reading the upper 16 bits of the TMD ID (i.e. the value that should always be 00000041, unless we're missing something that isn't in the file format docs.

It appears these padded files aren't always in MRG files. There's one at 800103d0 in the main executable of the game.

All of the the extended TMDs I've seen so far are followed by another file with the same extra header and a file ID of 0x01 (assuming they follow the same file ID convention as many other PS1 files)

I wasn't able to perform the addition, and then the addition spinner didn't disappear

This is just a reference for me so I can easily find these stubs.

8004c390
8001b33c
80045cb8

Animations seem to generally snap between end states without the intermediate frames or proper transformations.

(it may be rendering off-screen like some other stuff)

Even if it wasn't Dart's dragoon that levelled up

Used a healing breeze, instead of healing Rose it said "MISS"

There's a very common exception when booting, probably about 5-10% of the time, especially on slower hardware. The solution will probably be to just rewrite the code reading these files so that it doesn't have to rely on the hardware translation layer.

java.lang.ArrayIndexOutOfBoundsException: Index 7 out of bounds for length 7
	at legend.core.cdrom.SyncCode.fromLong(SyncCode.java:14)
	at legend.game.Scus94491BpeSegment_8003.processCdromInterrupt(Scus94491BpeSegment_8003.java:789)
	at legend.game.Scus94491BpeSegment_8003.FUN_800321c4(Scus94491BpeSegment_8003.java:1065)
	at legend.game.Scus94491BpeSegment_8003.FUN_80036e50(Scus94491BpeSegment_8003.java:3444)
	at legend.game.Scus94491BpeSegment_8003.FUN_8003429c(Scus94491BpeSegment_8003.java:2027)
	at legend.game.SInit.FUN_800fbb9c(SInit.java:219)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at legend.core.memory.Memory$MemoryValue.call(Memory.java:362)
	at legend.core.memory.types.SupplierRef.run(SupplierRef.java:25)
	at legend.game.SInit.executeSInitLoadingStage(SInit.java:94)
	at legend.game.Scus94491BpeSegment_800e.executeSInitLoadingStages(Scus94491BpeSegment_800e.java:1053)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at legend.core.memory.Memory$MemoryValue.call(Memory.java:362)
	at legend.core.memory.types.RunnableRef.run(RunnableRef.java:17)
	at legend.game.Scus94491BpeSegment_800e.executePregameLoadingStage(Scus94491BpeSegment_800e.java:934)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at legend.core.memory.Memory$MemoryValue.call(Memory.java:362)
	at legend.core.memory.types.RunnableRef.run(RunnableRef.java:17)
	at legend.game.Scus94491BpeSegment.executeLoadersAndScripts(Scus94491BpeSegment.java:388)
	at legend.game.Scus94491BpeSegment.lambda$gameLoop$0(Scus94491BpeSegment.java:354)
	at legend.core.gpu.Gpu.lambda$run$11(Gpu.java:451)
	at legend.core.opengl.Context.draw(Context.java:96)
	at legend.core.opengl.Window$Events.onDraw(Window.java:336)
	at legend.core.opengl.Window.run(Window.java:217)
	at legend.core.gpu.Gpu.run(Gpu.java:458)
	at java.base/java.lang.Thread.run(Thread.java:833)

The dragoon eye to transform into a dragoon is invisible (you can still select it though)

Press the camera switch button a few times and eventually it'll stop changing the camera

However if an enemy blocks, you need to press the circle button (at any time before the hit, it doesn't have to be accurate)

The combat camera is very glitchy. It jumps around a lot and the angles aren't quite right.

Add load game to the inv menu. Can probably look into the game over logic for a good way to reset back to the main menu.

Related to #24, some animations (for instance, some fog, the trees in the chase scene) will do things like stretch deform instead of rotate.

i.e. current character portrait outline, full SP flashing rectangle, addition squares

Player damage is being rounded oddly, you always seem to do a multiple of 5 damage like 25, 35, 45 (can't remember if you can do even multiples like 30 or 40)

Hoax is a good example, the background smoke in the battle scenes renders with a black background