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Decompile lib func_us_801BD268
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gamezter committed Feb 20, 2025
1 parent 4ef3136 commit be54d96
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Showing 2 changed files with 226 additions and 4 deletions.
5 changes: 2 additions & 3 deletions include/entity.h
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Original file line number Diff line number Diff line change
Expand Up @@ -2663,12 +2663,11 @@ typedef struct {
} ET_Chair;

typedef struct {
/* 0x7C */ u16 : 16;
/* 0x7E */ u16 : 16;
/* 0x7C */ struct Primitive* unk7C;
/* 0x80 */ u16 unk80;
/* 0x82 */ u16 : 16;
/* 0x84 */ u8 unk84;
/* 0x85 */ u8 : 8;
/* 0x85 */ u8 unk85;
/* 0x86 */ u8 : 8;
/* 0x87 */ u8 unk87;
/* 0x88 */ struct Entity* unk88;
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225 changes: 224 additions & 1 deletion src/st/lib/unk_3C57C.c
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Original file line number Diff line number Diff line change
Expand Up @@ -9,10 +9,233 @@ INCLUDE_ASM("st/lib/nonmatchings/unk_3C57C", func_us_801BCC10);

INCLUDE_ASM("st/lib/nonmatchings/unk_3C57C", func_us_801BCFD4);

extern s32 D_psp_092A5510;
extern s32 D_psp_092A5560;
extern s32 D_psp_092A55C0;

// Lesser Demon minion spawn?
// Seems like the vertical tractor beam effect that spawns
// Mudmen, Skeleton, Ectoplasm
INCLUDE_ASM("st/lib/nonmatchings/unk_3C57C", func_us_801BD268);
void func_us_801BD268(void) {
Entity* tempEntity;
Primitive* prim;
s32 primIndex;
s32 entityId;
s16 xOffset;

FntPrint("eff_step %x\n", g_CurrentEntity->ext.et_801BDAE4.unk84);
FntPrint("eff_timer %x\n", g_CurrentEntity->ext.et_801BDAE4.unk85);
switch (g_CurrentEntity->ext.et_801BDAE4.unk84) {
case 0:
primIndex = g_api.AllocPrimitives(PRIM_G4, 0x1E);
if (primIndex != -1) {
g_CurrentEntity->flags |= FLAG_HAS_PRIMS;
g_CurrentEntity->primIndex = primIndex;
prim = &g_PrimBuf[primIndex];
g_CurrentEntity->ext.et_801BDAE4.unk7C = prim;
while (prim != NULL) {
prim->priority = g_CurrentEntity->zPriority + 8;
prim->drawMode = DRAW_HIDE;
prim->p3 = 0;
prim = prim->next;
}
} else {
g_CurrentEntity->ext.et_801BDAE4.unk84 = 6;
}
g_CurrentEntity->ext.et_801BDAE4.unk84++;
break;

case 1:
prim = g_CurrentEntity->ext.et_801BDAE4.unk7C;
prim->p3 = 2;
PGREY(prim, 0) = 0;
PGREY(prim, 1) = 0;
PGREY(prim, 2) = 0x60;
PGREY(prim, 3) = 0x60;
prim->r2 += 0x40;
prim->r3 += 0x40;
prim->y0 = 0x120;
prim->y1 = 0x100;
prim->y2 = 0x140;
prim->y3 = 0x120;
if (g_CurrentEntity->facingLeft) {
xOffset = -8;
} else {
xOffset = 8;
}
prim->x0 = g_CurrentEntity->posX.i.hi - 1 + xOffset;
prim->x1 = prim->x0 + 2;
prim->x2 = prim->x0;
prim->x3 = prim->x1;
prim->v0 = 1;
prim->priority = g_CurrentEntity->zPriority + 4;
prim->drawMode =
DRAW_TPAGE2 | DRAW_TPAGE | DRAW_COLORS | DRAW_UNK02 | DRAW_TRANSP;
prim->u1 = 1;
prim = prim->next;

prim->p3 = 2;
PGREY(prim, 0) = 0;
PGREY(prim, 1) = 0;
PGREY(prim, 2) = 0x60;
PGREY(prim, 3) = 0x60;
prim->r2 += 0x40;
prim->r3 += 0x40;
prim->x0 = g_CurrentEntity->posX.i.hi + 1 + xOffset;
prim->x1 = prim->x0 - 2;
prim->x2 = prim->x0;
prim->x3 = prim->x1;
prim->y0 = 0x140;
prim->y1 = 0x120;
prim->y2 = 0x160;
prim->y3 = 0x140;
prim->v0 = 1;
prim->priority = g_CurrentEntity->zPriority - 2;
prim->drawMode = DRAW_TPAGE | DRAW_COLORS | DRAW_UNK02 | DRAW_TRANSP;
prim->u1 = 0;
g_CurrentEntity->ext.et_801BDAE4.unk85 = 0x18;
g_CurrentEntity->ext.et_801BDAE4.unk84 = 3;
break;

case 2:
prim = g_CurrentEntity->ext.et_801BDAE4.unk7C;
while (prim != NULL) {
if (prim->p3) {
func_us_801BCFD4(prim);
}
prim = prim->next;
}
prim = g_CurrentEntity->ext.et_801BDAE4.unk7C;
while (prim != NULL) {
if (g_CurrentEntity->ext.et_801BDAE4.unk80 % 2) {
if (prim->u1) {
prim->x0--;
prim->x2 = prim->x0;
prim->x1++;
prim->x3 = prim->x1;
} else {
prim->x0++;
prim->x2 = prim->x0;
prim->x1--;
prim->x3 = prim->x1;
}
}
prim->y0 -= 8;
prim->y1 -= 8;
prim->y2 -= 8;
prim->y3 -= 8;
prim = prim->next;
}
if (g_CurrentEntity->ext.et_801BDAE4.unk80 % 2) {
if (!--g_CurrentEntity->ext.et_801BDAE4.unk85) {
g_CurrentEntity->ext.et_801BDAE4.unk84++;
tempEntity = AllocEntity(&g_Entities[160], &g_Entities[192]);
if (tempEntity != NULL) {
switch (Random() & 3) {
case 0:
case 1:
#ifdef VERSION_PSP
entityId = D_psp_092A5510;
#else
entityId = 0x4D;
#endif
break;

case 2:
#ifdef VERSION_PSP
entityId = D_psp_092A55C0;
#else
entityId = 0x37;
#endif
break;

case 3:
#ifdef VERSION_PSP
entityId = D_psp_092A5560;
#else
entityId = 0x43;
#endif
break;
}
CreateEntityFromEntity(
entityId, g_CurrentEntity, tempEntity);
tempEntity->facingLeft = g_CurrentEntity->facingLeft;
if (g_CurrentEntity->facingLeft) {
tempEntity->posX.i.hi -= 8;
} else {
tempEntity->posX.i.hi += 8;
}
tempEntity->posY.i.hi += 0x30;
tempEntity->params = 0x10;
}
}
}
break;

case 3:
prim = g_CurrentEntity->ext.et_801BDAE4.unk7C;
while (prim != NULL) {
if (prim->p3) {
func_us_801BCFD4(prim);
}
prim = prim->next;
}
prim = g_CurrentEntity->ext.et_801BDAE4.unk7C;
while (prim != NULL) {
prim->y0 -= 8;
prim->y1 -= 8;
prim->y2 -= 8;
prim->y3 -= 8;
prim = prim->next;
}
if (g_CurrentEntity->ext.et_801BDAE4.unk85) {
if (!--g_CurrentEntity->ext.et_801BDAE4.unk85) {
g_CurrentEntity->ext.et_801BDAE4.unk85 = 0x18;
g_CurrentEntity->ext.et_801BDAE4.unk84--;
}
}
break;

case 4:
prim = g_CurrentEntity->ext.et_801BDAE4.unk7C;
while (prim != NULL) {
if (prim->p3) {
func_us_801BCFD4(prim);
}
prim = prim->next;
}
prim = g_CurrentEntity->ext.et_801BDAE4.unk7C;
while (prim != NULL) {
if (prim->u1) {
prim->x0++;
prim->x2 = prim->x0;
prim->x1--;
prim->x3 = prim->x1;
} else {
prim->x0--;
prim->x2 = prim->x0;
prim->x1++;
prim->x3 = prim->x1;
}
prim->y0 -= 8;
prim->y1 -= 8;
prim->y2 -= 8;
prim->y3 -= 8;
prim = prim->next;
}
if (++g_CurrentEntity->ext.et_801BDAE4.unk85 > 0x18) {
g_CurrentEntity->ext.et_801BDAE4.unk84++;
}
break;

case 5:
primIndex = g_CurrentEntity->primIndex;
g_api.FreePrimitives(primIndex);
g_CurrentEntity->flags &= ~FLAG_HAS_PRIMS;
g_CurrentEntity->ext.et_801BDAE4.unk84++;
break;
}
}

u8 func_us_801BDA34(void);
INCLUDE_ASM("st/lib/nonmatchings/unk_3C57C", func_us_801BDA34);
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