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Decompile glassCalculateOpacity

This commit is contained in:
Ryan Dwyer 2021-05-19 21:35:56 +10:00
parent 6941cdd793
commit 97dcc62f2d
2 changed files with 21 additions and 67 deletions
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86
src/game/propobj.c
View File

@ -16016,72 +16016,26 @@ glabel func0f07079c
/* f070928: 27bd00c8 */ addiu $sp,$sp,0xc8
);
GLOBAL_ASM(
glabel glassCalculateOpacity
/* f07092c: 27bdffe8 */ addiu $sp,$sp,-24
/* f070930: 3c02800a */ lui $v0,%hi(g_Vars+0x284)
/* f070934: 8c42a244 */ lw $v0,%lo(g_Vars+0x284)($v0)
/* f070938: afbf0014 */ sw $ra,0x14($sp)
/* f07093c: afa5001c */ sw $a1,0x1c($sp)
/* f070940: afa60020 */ sw $a2,0x20($sp)
/* f070944: afa70024 */ sw $a3,0x24($sp)
/* f070948: c4840000 */ lwc1 $f4,0x0($a0)
/* f07094c: c4461bb0 */ lwc1 $f6,0x1bb0($v0)
/* f070950: c4880004 */ lwc1 $f8,0x4($a0)
/* f070954: c44a1bb4 */ lwc1 $f10,0x1bb4($v0)
/* f070958: 46062001 */ sub.s $f0,$f4,$f6
/* f07095c: c4900008 */ lwc1 $f16,0x8($a0)
/* f070960: c4521bb8 */ lwc1 $f18,0x1bb8($v0)
/* f070964: 460a4081 */ sub.s $f2,$f8,$f10
/* f070968: 46000102 */ mul.s $f4,$f0,$f0
/* f07096c: 24421bb0 */ addiu $v0,$v0,7088
/* f070970: 46128381 */ sub.s $f14,$f16,$f18
/* f070974: 46021182 */ mul.s $f6,$f2,$f2
/* f070978: 46062200 */ add.s $f8,$f4,$f6
/* f07097c: 460e7282 */ mul.s $f10,$f14,$f14
/* f070980: 0c012974 */ jal sqrtf
/* f070984: 460a4300 */ add.s $f12,$f8,$f10
/* f070988: c7ae0020 */ lwc1 $f14,0x20($sp)
/* f07098c: c7a2001c */ lwc1 $f2,0x1c($sp)
/* f070990: c7ac0024 */ lwc1 $f12,0x24($sp)
/* f070994: 4600703c */ c.lt.s $f14,$f0
/* f070998: 8fbf0014 */ lw $ra,0x14($sp)
/* f07099c: 27bd0018 */ addiu $sp,$sp,0x18
/* f0709a0: 45020004 */ bc1fl .L0f0709b4
/* f0709a4: 4602003c */ c.lt.s $f0,$f2
/* f0709a8: 1000001a */ b .L0f070a14
/* f0709ac: 240300ff */ addiu $v1,$zero,0xff
/* f0709b0: 4602003c */ c.lt.s $f0,$f2
.L0f0709b4:
/* f0709b4: 3c013f80 */ lui $at,0x3f80
/* f0709b8: 4502000a */ bc1fl .L0f0709e4
/* f0709bc: 44814000 */ mtc1 $at,$f8
/* f0709c0: 3c01437f */ lui $at,0x437f
/* f0709c4: 44818000 */ mtc1 $at,$f16
/* f0709c8: 00000000 */ nop
/* f0709cc: 46106482 */ mul.s $f18,$f12,$f16
/* f0709d0: 4600910d */ trunc.w.s $f4,$f18
/* f0709d4: 44032000 */ mfc1 $v1,$f4
/* f0709d8: 1000000e */ b .L0f070a14
/* f0709dc: 00000000 */ nop
/* f0709e0: 44814000 */ mtc1 $at,$f8
.L0f0709e4:
/* f0709e4: 46020181 */ sub.s $f6,$f0,$f2
/* f0709e8: 3c01437f */ lui $at,0x437f
/* f0709ec: 460c4281 */ sub.s $f10,$f8,$f12
/* f0709f0: 46027481 */ sub.s $f18,$f14,$f2
/* f0709f4: 460a3402 */ mul.s $f16,$f6,$f10
/* f0709f8: 44813000 */ mtc1 $at,$f6
/* f0709fc: 46128103 */ div.s $f4,$f16,$f18
/* f070a00: 460c2200 */ add.s $f8,$f4,$f12
/* f070a04: 46064282 */ mul.s $f10,$f8,$f6
/* f070a08: 4600540d */ trunc.w.s $f16,$f10
/* f070a0c: 44038000 */ mfc1 $v1,$f16
/* f070a10: 00000000 */ nop
.L0f070a14:
/* f070a14: 03e00008 */ jr $ra
/* f070a18: 00601025 */ or $v0,$v1,$zero
);
s32 glassCalculateOpacity(struct coord *pos, f32 xludist, f32 opadist, f32 arg3)
{
struct coord *campos = &g_Vars.currentplayer->cam_pos;
s32 opacity;
f32 xdiff = pos->x - campos->x;
f32 ydiff = pos->y - campos->y;
f32 zdiff = pos->z - campos->z;
f32 distance = sqrtf(xdiff * xdiff + ydiff * ydiff + zdiff * zdiff);
if (distance > opadist) {
opacity = 255;
} else if (distance < xludist) {
opacity = arg3 * 255;
} else {
opacity = (((distance - xludist) * (1.0f - arg3)) / (opadist - xludist) + arg3) * 255;
}
return opacity;
}
GLOBAL_ASM(
glabel func0f070a1c

2
src/include/game/propobj.h
View File

@ -135,7 +135,7 @@ void func0f07063c(struct prop *prop, bool arg1);
void func0f070698(struct prop *prop, bool arg1);
void func0f0706f8(struct prop *prop, bool arg1);
void func0f07079c(struct prop *prop, bool arg1);
s32 glassCalculateOpacity(struct coord *pos, f32 arg1, f32 arg2, f32 arg3);
s32 glassCalculateOpacity(struct coord *pos, f32 xludist, f32 opadist, f32 arg3);
u32 func0f070a1c(void);
u32 func0f070bd0(void);
void func0f070ca0(struct defaultobj *obj, void *ptr, s32 arg2, s32 arg3, union modelrodata *rodata);