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Update r_plane.c

This commit is contained in:
Jaime Passos 2019-12-11 12:36:54 -03:00
parent f51253a0a8
commit be13f463f0
1 changed files with 27 additions and 22 deletions
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49
src/r_plane.c
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@ -135,6 +135,21 @@ INT32 ds_waterofs;
static INT32 wtofs=0;
static boolean itswater;
static fixed_t ripple_xfrac;
static fixed_t ripple_yfrac;
static void R_PlaneRipple(visplane_t *plane, INT32 y, fixed_t plheight)
{
fixed_t distance = FixedMul(plheight, yslope[y]);
const INT32 yay = (wtofs + (distance>>9) ) & 8191;
// ripples da water texture
angle_t angle = (plane->viewangle + plane->plangle)>>ANGLETOFINESHIFT;
ds_bgofs = FixedDiv(FINESINE(yay), (1<<12) + (distance>>11))>>FRACBITS;
angle = (angle + 2048) & 8191; // 90 degrees
ripple_xfrac = FixedMul(FINECOSINE(angle), (ds_bgofs<<FRACBITS));
ripple_yfrac = FixedMul(FINESINE(angle), (ds_bgofs<<FRACBITS));
}
#endif
void R_MapPlane(INT32 y, INT32 x1, INT32 x2)
@ -181,14 +196,8 @@ void R_MapPlane(INT32 y, INT32 x1, INT32 x2)
#ifndef NOWATER
if (itswater)
{
const INT32 yay = (wtofs + (distance>>9) ) & 8191;
// ripples da water texture
ds_bgofs = FixedDiv(FINESINE(yay), (1<<12) + (distance>>11))>>FRACBITS;
angle = (currentplane->viewangle + currentplane->plangle + xtoviewangle[x1])>>ANGLETOFINESHIFT;
angle = (angle + 2048) & 8191; // 90 degrees
ds_xfrac += FixedMul(FINECOSINE(angle), (ds_bgofs<<FRACBITS));
ds_yfrac += FixedMul(FINESINE(angle), (ds_bgofs<<FRACBITS));
// Needed for ds_bgofs
R_PlaneRipple(currentplane, y, planeheight);
#ifdef ESLOPE
if (currentplane->slope)
@ -197,7 +206,12 @@ void R_MapPlane(INT32 y, INT32 x1, INT32 x2)
ds_svp = &ds_sv[y];
ds_szp = &ds_sz[y];
}
else
#endif
{
ds_xfrac += ripple_xfrac;
ds_yfrac += ripple_yfrac;
}
if (y+ds_bgofs>=viewheight)
ds_bgofs = viewheight-y-1;
@ -842,7 +856,6 @@ static UINT8 *R_GetTextureFlat(levelflat_t *levelflat, boolean leveltexture, boo
return flat;
}
// Lactokaiju
#ifdef ESLOPE
static void R_SlopeVectors(visplane_t *pl, INT32 i, float fudge)
{
@ -924,7 +937,7 @@ d.z = (v1.x * v2.y) - (v1.y * v2.x)
}
else
{
// I'm essentially multiplying the vectors by FRACUNIT...
// Lactozilla: I'm essentially multiplying the vectors by FRACUNIT...
ds_su[i].x *= SFMULT;
ds_su[i].y *= SFMULT;
ds_su[i].z *= SFMULT;
@ -1209,6 +1222,7 @@ void R_DrawSinglePlane(visplane_t *pl)
if (itswater)
{
INT32 i;
fixed_t plheight = abs(P_GetZAt(pl->slope, pl->viewx, pl->viewy) - pl->viewz);
fixed_t rxoffs = xoffs;
fixed_t ryoffs = yoffs;
@ -1216,18 +1230,9 @@ void R_DrawSinglePlane(visplane_t *pl)
for (i = pl->high; i < pl->low; i++)
{
// Fuck it
fixed_t plheight = abs(P_GetZAt(pl->slope, pl->viewx, pl->viewy) - pl->viewz);
fixed_t distance = FixedMul(plheight, yslope[i]);
const INT32 yay = (wtofs + (distance>>9) ) & 8191;
// ripples da water texture
ds_bgofs = FixedDiv(FINESINE(yay), (1<<12) + (distance>>11))>>FRACBITS;
angle = (pl->viewangle + pl->plangle)>>ANGLETOFINESHIFT;
angle = (angle + 2048) & 8191; // 90 degrees
xoffs = rxoffs + FixedMul(FINECOSINE(angle), (ds_bgofs<<FRACBITS));
yoffs = ryoffs + FixedMul(FINESINE(angle), (ds_bgofs<<FRACBITS));
R_PlaneRipple(pl, i, plheight);
xoffs = rxoffs + ripple_xfrac;
yoffs = ryoffs + ripple_yfrac;
R_SlopeVectors(pl, i, fudgecanyon);
}