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Fix controls on aarch64

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Cast the rotation values to a short before assigning to the tangles
struct to avoid the FCVTZU instruction which strips the negative sign
from kicking in.

Fixes #161
This commit is contained in:
Jacob Coby 2024-04-26 17:07:24 -04:00
parent 19896370d9
commit 147078b3a6
1 changed files with 7 additions and 7 deletions
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14
physics/physics.cpp
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@ -1,5 +1,5 @@
/*
* Descent 3
* Descent 3
* Copyright (C) 2024 Parallax Software
*
* This program is free software: you can redistribute it and/or modify
@ -401,9 +401,9 @@ bool PhysicsDoSimRot(object *obj, float frame_time, matrix *orient, vector *rott
// Fixed rate rotaters
if (obj->mtype.phys_info.flags & PF_FIXED_ROT_VELOCITY) {
tangles.p = rotvel->x * frame_time;
tangles.h = rotvel->y * frame_time;
tangles.b = rotvel->z * frame_time;
tangles.p = (short)(rotvel->x * frame_time);
tangles.h = (short)(rotvel->y * frame_time);
tangles.b = (short)(rotvel->z * frame_time);
vm_AnglesToMatrix(&rotmat, tangles.p, tangles.h, tangles.b);
*orient = *orient * rotmat; // ObjSetOrient below
@ -665,9 +665,9 @@ bool PhysicsDoSimRot(object *obj, float frame_time, matrix *orient, vector *rott
}
// Apply rotation to the "un-rollbanked" object
tangles.p = rotvel->x * frame_time;
tangles.h = rotvel->y * frame_time;
tangles.b = rotvel->z * frame_time;
tangles.p = (short)(rotvel->x * frame_time); // Casting to short is required for aarch64 to avoid FCVTZU instruction which strips the negative sign
tangles.h = (short)(rotvel->y * frame_time);
tangles.b = (short)(rotvel->z * frame_time);
vm_AnglesToMatrix(&rotmat, tangles.p, tangles.h, tangles.b);
*orient = *orient * rotmat; // ObjSetOrient is below