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Interpolate minecart marks

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Fixes STJr/SRB2#906

Uses the old displacement of the minecart to position the mark relative
to its destination. It's not completely correct, but it works.
This commit is contained in:
Eidolon 2023-01-25 20:37:04 -06:00
parent 6c54af3774
commit add018cb83
1 changed files with 15 additions and 0 deletions
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15
src/p_user.c
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@ -11038,6 +11038,21 @@ static void P_MinecartThink(player_t *player)
S_StartSound(minecart, minecart->info->activesound);
}
}
// Mark interpolation; the old positions need to be relative to the displacement from the minecart _after_ it's moved.
// This isn't quite correct (it captures the landing wobble) but it works well enough
if (detleft)
{
detleft->old_x = detleft->x - (minecart->old_x - minecart->old_x2);
detleft->old_y = detleft->y - (minecart->old_y - minecart->old_y2);
detleft->old_z = detleft->z - (minecart->old_z - minecart->old_z2);
}
if (detright)
{
detright->old_x = detright->x - (minecart->old_x - minecart->old_x2);
detright->old_y = detright->y - (minecart->old_y - minecart->old_y2);
detright->old_z = detright->z - (minecart->old_z - minecart->old_z2);
}
}
else
{