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match SetVecFromDirectionSpeed thanks to @Kermalis

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This commit is contained in:
Seth Barberee
2024-12-28 07:22:48 -08:00
parent e4d8d9002d
commit d376093408
1 changed files with 11 additions and 20 deletions
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31
src/code_8002774.c
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@@ -4,6 +4,13 @@
#include "structs/str_position.h"
#include "other_random.h"
typedef struct Vector
{
s32 x;
s32 y;
} Vector;
extern Vector gVectorDirections[8];
void sub_800290C(PixelPos *param_1, s32 param_2)
{
@@ -180,27 +187,11 @@ UNUSED s32 sub_8002B5C(s32 _direction1, s32 _direction2)
return direction1 & DIRECTION_MASK_CARDINAL;
}
NAKED void SetVecFromDirectionSpeed(void)
Vector SetVecFromDirectionSpeed(s8 r1, u32 r2)
{
asm_unified(
"\tpush {r4,r5,lr}\n"
"\tlsls r1, 24\n"
"\tasrs r1, 21\n"
"\tldr r3, _08002BD8\n"
"\tadds r1, r3\n"
"\tldr r5, [r1]\n"
"\tadds r3, r5, 0\n"
"\tmuls r3, r2\n"
"\tldr r1, [r1, 0x4]\n"
"\tadds r4, r1, 0\n"
"\tmuls r4, r2\n"
"\tstr r3, [r0]\n"
"\tstr r4, [r0, 0x4]\n"
"\tpop {r4,r5}\n"
"\tpop {r2}\n"
"\tbx r2\n"
"\t.align 2, 0\n"
"_08002BD8: .4byte gVectorDirections");
Vector *vec = &gVectorDirections[r1];
return (Vector){ .x = vec->x * r2, .y = vec->y * r2 };
}
s32 VecDirection8Sign(PixelPos *param_1)