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Try to correctly interpolate chase camera viewpoint as angle changes

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This commit is contained in:
James R 2023-10-17 01:22:47 -07:00
parent de5b151985
commit c758a8ad27
3 changed files with 16 additions and 6 deletions
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10
src/r_fps.c
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@ -140,10 +140,6 @@ void R_InterpolateView(fixed_t frac)
prevview = newview;
}
viewx = R_LerpFixed(prevview->x, newview->x, frac);
viewy = R_LerpFixed(prevview->y, newview->y, frac);
viewz = R_LerpFixed(prevview->z, newview->z, frac);
viewangle = R_LerpAngle(prevview->angle, newview->angle, frac);
aimingangle = R_LerpAngle(prevview->aim, newview->aim, frac);
viewroll = R_LerpAngle(prevview->roll, newview->roll, frac);
@ -151,6 +147,12 @@ void R_InterpolateView(fixed_t frac)
viewsin = FINESINE(viewangle>>ANGLETOFINESHIFT);
viewcos = FINECOSINE(viewangle>>ANGLETOFINESHIFT);
fixed_t zoom = R_LerpFixed(prevview->zoom, newview->zoom, frac);
viewx = R_LerpFixed(prevview->x, newview->x, frac) - FixedMul(viewcos, zoom);
viewy = R_LerpFixed(prevview->y, newview->y, frac) - FixedMul(viewsin, zoom);
viewz = R_LerpFixed(prevview->z, newview->z, frac);
viewplayer = newview->player;
viewsector = R_PointInSubsector(viewx, viewy)->sector;

1
src/r_fps.h
View file

@ -48,6 +48,7 @@ struct viewvars_t {
fixed_t x;
fixed_t y;
fixed_t z;
fixed_t zoom;
boolean sky;
sector_t *sector;
player_t *player;

11
src/r_main.cpp
View file

@ -1244,6 +1244,7 @@ void R_SetupFrame(int s)
newview->x = r_viewmobj->x;
newview->y = r_viewmobj->y;
newview->z = r_viewmobj->z;
newview->zoom = 0;
R_SetupCommonFrame(player, r_viewmobj->subsector);
}
@ -1252,9 +1253,13 @@ void R_SetupFrame(int s)
{
r_viewmobj = NULL;
newview->x = thiscam->x;
newview->y = thiscam->y;
fixed_t x = player->mo ? player->mo->x : thiscam->x;
fixed_t y = player->mo ? player->mo->y : thiscam->y;
newview->x = x;
newview->y = y;
newview->z = thiscam->z + (thiscam->height>>1);
newview->zoom = FixedHypot(thiscam->x - x, thiscam->y - y);
R_SetupCommonFrame(player, thiscam->subsector);
}
@ -1267,6 +1272,7 @@ void R_SetupFrame(int s)
newview->x = r_viewmobj->x;
newview->y = r_viewmobj->y;
newview->z = player->viewz;
newview->zoom = 0;
R_SetupCommonFrame(player, r_viewmobj->subsector);
}
@ -1297,6 +1303,7 @@ void R_SkyboxFrame(int s)
newview->x = r_viewmobj->x;
newview->y = r_viewmobj->y;
newview->z = r_viewmobj->z; // 26/04/17: use actual Z position instead of spawnpoint angle!
newview->zoom = 0;
if (mapheaderinfo[gamemap-1])
{