Game-Decompilation/mzm
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Some credits code

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This commit is contained in:
y.demaisonregne 2023-03-12 01:31:20 +01:00
parent fd8a05f4c4
commit 242341edc6
7 changed files with 349 additions and 6 deletions

2
README.md

@ -2,7 +2,7 @@
This is a work in progress decompilation of Metroid - Zero Mission.
2213/2721 functions decompiled (81.33%, 508 left)
2223/2721 functions decompiled (81.70%, 498 left)
Progress can be seen here : https://docs.google.com/spreadsheets/d/1X8XarD5evY8ZI7r_GQqh1pYmdVMbBcINYfRBUlogmKY/edit#gid=0
**This decomp is not shiftable, don't use it as a base to work on anything**

10
include/constants/ending_and_gallery.h

@ -7,3 +7,13 @@
#define ENDING_IMAGE_OAM_SET_CLEAR_TIME 0
#define ENDING_IMAGE_OAM_SET_YOUR_RATE 1
#define ENDING_IMAGE_OAM_SET_COLLECTING 2
#define CREDIT_LINE_TYPE_BLUE 0
#define CREDIT_LINE_TYPE_RED 1
#define CREDIT_LINE_TYPE_WHITE_BIG 2
#define CREDIT_LINE_TYPE_WHITE_SMALL 3
#define CREDIT_LINE_TYPE_END 6
#define CREDIT_LINE_TYPE_ALL_RIGHTS 10
#define CREDIT_LINE_TYPE_THE_COPYRIGHT 11
#define CREDIT_LINE_TYPE_SCENARIO 12
#define CREDIT_LINE_TYPE_RESERVED 13

11
include/data/ending_and_gallery_data.h

@ -10,11 +10,11 @@ extern const u16 sEndingImageTextPAL[14 * 16];
// ...
extern const u16* const sEndingWhitePalPointers[4];
extern const u32 sEndingImageNumbersMiscGFX[218];
// ...
extern const u32 sEndingImageNumbersMiscGFX[218];
extern const u16 sEndingImage_549eec[19];
// ...
@ -46,7 +46,12 @@ extern const u32* const sEndingImagesTopHalfTileTablePointers[NUMBER_OF_ENDING_I
extern const u32* const sEndingImagesLowerHalfTileTablePointers[NUMBER_OF_ENDING_IMAGES];
extern const u16* const sEndingImagesPalPointers[NUMBER_OF_ENDING_IMAGES];
// ...
extern const struct CreditsEntry sCredits[240];
extern const u16* const sEndingWhitePalPointers[4];
extern const u8 sEndingImage_54e2dc[8];
extern const u8 sEndingImage_54e2e4[12];
extern const u32 sCreditsCharactersGFX[615];

13
include/data/internal_ending_and_gallery_data.h Normal file

@ -0,0 +1,13 @@
#ifndef INTERNAL_ENDING_AND_GALLERY_DATA
#define INTERNAL_ENDING_AND_GALLERY_DATA
#include "types.h"
typedef u8 (*CreditsFunc_T)(void);
extern const CreditsFunc_T sCreditsFunctionPointers[3];
extern const CreditsFunc_T sEndScreenFunctionPointers[1];
extern const CreditsFunc_T sEndingImageFunctionPointers[1];
extern const CreditsFunc_T sUnlockedOptionsFunctionPointers[2];
#endif /* INTERNAL_ENDING_AND_GALLERY_DATA */

5
include/structs/ending_and_gallery.h

@ -14,6 +14,11 @@ struct EndingImageOam {
const u16* const pFrame;
};
struct CreditsEntry {
u8 type;
u8 text[35];
};
struct EndingData {
u8 stage;
u8 unk_1;

310
src/ending_and_gallery.c

@ -3,6 +3,7 @@
#include "data/shortcut_pointers.h"
#include "data/ending_and_gallery_data.h"
#include "data/internal_ending_and_gallery_data.h"
#include "constants/audio.h"
#include "constants/ending_and_gallery.h"
@ -339,9 +340,22 @@ void EndScreenVBlank(void)
write16(REG_BG3HOFS, gBG3XPosition & 0x1FF);
}
/**
* @brief 853c0 | a8 | V-blank code for the unlocked options
*
*/
void UnlockedOptionsVBlank(void)
{
dma_set(3, gOamData, OAM_BASE, (DMA_ENABLE | DMA_32BIT) << 16 | OAM_SIZE / 4);
write16(REG_DISPCNT, ENDING_DATA.dispcnt);
write16(REG_BLDCNT, ENDING_DATA.bldcnt);
write16(REG_BLDALPHA, gWrittenToBLDALPHA_H << 8 | gWrittenToBLDALPHA_L);
write16(REG_BLDY, gWrittenToBLDY_NonGameplay);
write16(REG_WIN0H, ENDING_DATA.oamXPositions[0] << 8 | ENDING_DATA.oamXPositions[1]);
write16(REG_WIN0V, ENDING_DATA.oamYPositions[0] << 8 | ENDING_DATA.oamYPositions[1]);
}
/**
@ -417,7 +431,78 @@ void CreditsInit(void)
u8 CreditsDisplayLine(u32 line)
{
// https://decomp.me/scratch/tfc6g
u8 i;
u16 tile;
u32 ret_0;
u32 ret_1;
const struct CreditsEntry* pCredits;
pCredits = sCredits;
pCredits += line;
for (i = 0; i < ARRAY_SIZE(ENDING_DATA.creditLineTilemap_1); i++)
{
ENDING_DATA.creditLineTilemap_1[i] = 0;
ENDING_DATA.creditLineTilemap_2[i] = 0;
}
if (pCredits->type != CREDIT_LINE_TYPE_BLUE)
tile = 13 << 12;
else if (pCredits->type == CREDIT_LINE_TYPE_RED)
tile = 15 << 12;
else
tile = 14 << 12;
ret_0 = 0;
ret_1 = 0;
switch (pCredits->type)
{
case CREDIT_LINE_TYPE_BLUE:
case CREDIT_LINE_TYPE_RED:
case CREDIT_LINE_TYPE_WHITE_SMALL:
break;
case CREDIT_LINE_TYPE_END:
ret_0 = 9;
break;
case CREDIT_LINE_TYPE_ALL_RIGHTS:
for (i = 0; i < 20; i++)
ENDING_DATA.creditLineTilemap_1[i + 6] = i + tile + 0xC0;
ret_0 = 1;
ret_1 = 0x10;
break;
case CREDIT_LINE_TYPE_THE_COPYRIGHT:
for (i = 0; i < 20; i++)
ENDING_DATA.creditLineTilemap_1[i + 6] = i + tile + 0xE0;
ret_0 = 1;
break;
case 5:
ret_0 = 1;
break;
case CREDIT_LINE_TYPE_SCENARIO:
for (i = 0; i < 20; i++)
ENDING_DATA.creditLineTilemap_1[i + 6] = i + tile + 0x100;
ret_0 = 1;
break;
case CREDIT_LINE_TYPE_RESERVED:
for (i = 0; i < 20; i++)
ENDING_DATA.creditLineTilemap_1[i + 6] = i + tile + 0x120;
ret_0 = 1;
break;
case CREDIT_LINE_TYPE_WHITE_BIG:
break;
}
return ret_0 | ret_1;
}
/**
@ -1152,7 +1237,99 @@ void EndingImageInit(void)
void EndingImageDisplayText(void)
{
// https://decomp.me/scratch/ZtTF7
u16* dst;
const u16* src;
i32 i;
i32 nextSlot;
i32 currSlot;
u32 partCount;
u16 part;
u8 palette;
dst = (u16*)gOamData;
currSlot = 0;
nextSlot = 0;
for (i = 0; i < ENDING_DATA.oamLength; i++)
{
if (ENDING_DATA.unk_124[i] <= 1)
continue;
if (ENDING_DATA.unk_160[i] < 64)
ENDING_DATA.unk_160[i]++;
palette = 0;
if (i > 5)
{
if (ENDING_DATA.unk_160[i] < 4)
palette = 11;
else if (ENDING_DATA.unk_160[i] < 8)
palette = 12;
else if (ENDING_DATA.unk_160[i] < 12)
palette = 13;
}
else if (i == 5)
{
ENDING_DATA.unk_160[i] &= 0x3F;
palette = sEndingImage_54e2dc[ENDING_DATA.unk_160[i] / 8];
}
src = ENDING_DATA.oamFramePointers[i];
partCount = *src++;
currSlot += partCount & 0xFF;
for (; nextSlot < currSlot; nextSlot++)
{
part = *src++;
*dst++ = part;
gOamData[nextSlot].split.y = part + ENDING_DATA.oamYPositions[i];
part = *src++;
*dst++ = part;
gOamData[nextSlot].split.x = (part + ENDING_DATA.oamXPositions[i]) & 0x1FF;
*dst++ = *src++;
gOamData[nextSlot].split.paletteNum = palette;
dst++;
}
}
if (ENDING_DATA.unk_141)
{
if (ENDING_DATA.unk_17D++ > 70)
ENDING_DATA.unk_17D = 0;
palette = sEndingImage_54e2e4[ENDING_DATA.unk_17D / 6];
src = sEndingImage_549eec;
partCount = *src++;
currSlot += partCount & 0xFF;
for (; nextSlot < currSlot; nextSlot++)
{
part = *src++;
*dst++ = part;
gOamData[nextSlot].split.y = part + 59;
part = *src++;
*dst++ = part;
gOamData[nextSlot].split.x = (part + 48) & 0x1FF;
*dst++ = *src++;
gOamData[nextSlot].split.paletteNum = palette;
dst++;
}
}
gNextOamSlot = nextSlot;
}
/**
@ -1412,9 +1589,142 @@ u8 UnlockedOptionsPopUp(void)
return ended;
}
/**
* @brief 871dc | 208 | Subroutine for the credits
*
* @return u32 bool, ended
*/
u32 CreditsSubroutine(void)
{
u32 ended;
u32 subroutineResult;
ended = FALSE;
ENDING_DATA.unk_6 = 0;
gNextOamSlot = 0;
switch (gGameModeSub1)
{
case 0:
CreditsInit();
gGameModeSub1++;
break;
case 2:
subroutineResult = sCreditsFunctionPointers[ENDING_DATA.stage]();
if (subroutineResult)
{
ENDING_DATA.stage++;
ENDING_DATA.unk_1 = 0;
ENDING_DATA.endScreenTimer = 0;
ENDING_DATA.timer = 0;
if (subroutineResult > 1)
gGameModeSub1++;
}
ResetFreeOAM();
break;
case 7:
case 11:
if (gWrittenToBLDY_NonGameplay < 16)
gWrittenToBLDY_NonGameplay++;
else
gGameModeSub1++;
break;
case 4:
EndScreenInit();
gGameModeSub1++;
break;
case 6:
if (sEndScreenFunctionPointers[ENDING_DATA.stage]())
gGameModeSub1++;
break;
case 8:
EndingImageInit();
gGameModeSub1++;
break;
case 5:
case 9:
case 13:
if (gWrittenToBLDY_NonGameplay != 0)
gWrittenToBLDY_NonGameplay--;
else
{
ENDING_DATA.bldcnt = 0;
gGameModeSub1++;
}
break;
case 10:
if (sEndingImageFunctionPointers[ENDING_DATA.stage]())
{
if (gEndingFlags & (ENDING_FLAG_UNKNOWN | ENDING_FLAG_FIRST_TIME_ATTACK_CLEAR |
ENDING_FLAG_FIRST_HARD_MODE_CLEAR | ENDING_FLAG_FIRST_CLEAR))
{
ENDING_DATA.bldcnt = BLDCNT_BG0_FIRST_TARGET_PIXEL | BLDCNT_BG1_FIRST_TARGET_PIXEL |
BLDCNT_BG2_FIRST_TARGET_PIXEL | BLDCNT_BG3_FIRST_TARGET_PIXEL | BLDCNT_OBJ_FIRST_TARGET_PIXEL |
BLDCNT_BACKDROP_FIRST_TARGET_PIXEL | BLDCNT_ALPHA_BLENDING_EFFECT | BLDCNT_BRIGHTNESS_INCREASE_EFFECT;
gWrittenToBLDY_NonGameplay = 0;
gGameModeSub1++;
}
else
{
gDisableSoftreset = FALSE;
ended++;
}
}
ResetFreeOAM();
break;
case 1:
case 3:
gGameModeSub1++;
break;
case 15:
if (gEndingFlags & (ENDING_FLAG_UNKNOWN | ENDING_FLAG_FIRST_TIME_ATTACK_CLEAR |
ENDING_FLAG_FIRST_HARD_MODE_CLEAR | ENDING_FLAG_FIRST_CLEAR))
{
gGameModeSub1++;
break;
}
gDisableSoftreset = FALSE;
ended++;
break;
case 12:
UnlockedOptionsInit();
gGameModeSub1++;
break;
case 14:
subroutineResult = sUnlockedOptionsFunctionPointers[ENDING_DATA.stage]();
if (subroutineResult)
{
gEndingFlags = 0;
ENDING_DATA.stage++;
ENDING_DATA.unk_1 = 0;
ENDING_DATA.endScreenTimer = 0;
ENDING_DATA.timer = 0;
if (subroutineResult > 1)
gGameModeSub1++;
}
ResetFreeOAM();
break;
}
return ended;
}
/**

4
src/intro.c

@ -429,11 +429,11 @@ void IntroShipFlyingTowardsCameraProcessOAM(void)
*dst++ = *src++;
dst++;
ProcessComplexOam(i, xPosition, yPosition, INTRO_DATA.rotation, INTRO_DATA.scaling, TRUE, 0); // Undefined
ProcessComplexOam(i, xPosition, yPosition, INTRO_DATA.rotation, INTRO_DATA.scaling, TRUE, 0);
}
gNextOamSlot = i;
CalculateOamPart4(INTRO_DATA.rotation, INTRO_DATA.scaling, 0); // Undefined
CalculateOamPart4(INTRO_DATA.rotation, INTRO_DATA.scaling, 0);
}
/**