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When recording low resolution (non-longtics) Vanilla demos, carry

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forward the error from angleturn caused by the reduced resolution, so
that consecutive errors can accumulate, possibly making turning slightly
smoother.

Subversion-branch: /trunk/chocolate-doom
Subversion-revision: 1770
This commit is contained in:
Simon Howard 2009-12-28 20:57:20 +00:00
parent 51948fd78f
commit 2e6406e083
1 changed files with 12 additions and 2 deletions
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14
src/g_game.c
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@ -650,10 +650,20 @@ void G_BuildTiccmd (ticcmd_t* cmd)
if (lowres_turn)
{
// round angleturn to the nearest 256 boundary
static signed short carry = 0;
signed short desired_angleturn;
desired_angleturn = cmd->angleturn + carry;
// round angleturn to the nearest 256 unit boundary
// for recording demos with single byte values for turn
cmd->angleturn = (cmd->angleturn + 128) & 0xff00;
cmd->angleturn = (desired_angleturn + 128) & 0xff00;
// Carry forward the error from the reduced resolution to the
// next tic, so that successive small movements can accumulate.
carry = desired_angleturn - cmd->angleturn;
}
}