From 41d96010184e501b89d3a81c424587615e8e67d0 Mon Sep 17 00:00:00 2001
From: Lactozilla <jp6781615@gmail.com>
Date: Tue, 30 Jan 2024 18:57:24 -0300
Subject: [PATCH] Interpolate polyobjects properly for the software renderer
---
src/r_fps.c | 17 +++++++++++++++++
src/r_fps.h | 1 +
2 files changed, 18 insertions(+)
diff --git a/src/r_fps.c b/src/r_fps.c
index de450aaa7..c8ceab760 100644
--- a/src/r_fps.c
+++ b/src/r_fps.c
@@ -482,6 +482,7 @@ void R_CreateInterpolator_Polyobj(thinker_t *thinker, polyobj_t *polyobj)
interp->polyobj.oldcx = interp->polyobj.bakcx = polyobj->centerPt.x;
interp->polyobj.oldcy = interp->polyobj.bakcy = polyobj->centerPt.y;
+ interp->polyobj.oldangle = interp->polyobj.bakangle = polyobj->angle;
}
void R_CreateInterpolator_DynSlope(thinker_t *thinker, pslope_t *slope)
@@ -505,6 +506,15 @@ void R_InitializeLevelInterpolators(void)
levelinterpolators = NULL;
}
+static void RecalculatePolyobjectSegAngles(polyobj_t *polyobj)
+{
+ for (size_t i = 0; i < polyobj->segCount; i++)
+ {
+ seg_t *seg = polyobj->segs[i];
+ seg->angle = R_PointToAngle2(seg->v1->x, seg->v1->y, seg->v2->x, seg->v2->y);
+ }
+}
+
static void UpdateLevelInterpolatorState(levelinterpolator_t *interp)
{
size_t i;
@@ -535,10 +545,13 @@ static void UpdateLevelInterpolatorState(levelinterpolator_t *interp)
interp->polyobj.bakvertices[i * 2 ] = interp->polyobj.polyobj->vertices[i]->x;
interp->polyobj.bakvertices[i * 2 + 1] = interp->polyobj.polyobj->vertices[i]->y;
}
+ RecalculatePolyobjectSegAngles(interp->polyobj.polyobj);
interp->polyobj.oldcx = interp->polyobj.bakcx;
interp->polyobj.oldcy = interp->polyobj.bakcy;
+ interp->polyobj.oldangle = interp->polyobj.bakangle;
interp->polyobj.bakcx = interp->polyobj.polyobj->centerPt.x;
interp->polyobj.bakcy = interp->polyobj.polyobj->centerPt.y;
+ interp->polyobj.bakangle = interp->polyobj.polyobj->angle;
break;
case LVLINTERP_DynSlope:
FV3_Copy(&interp->dynslope.oldo, &interp->dynslope.bako);
@@ -624,8 +637,10 @@ void R_ApplyLevelInterpolators(fixed_t frac)
interp->polyobj.polyobj->vertices[ii]->x = R_LerpFixed(interp->polyobj.oldvertices[ii * 2 ], interp->polyobj.bakvertices[ii * 2 ], frac);
interp->polyobj.polyobj->vertices[ii]->y = R_LerpFixed(interp->polyobj.oldvertices[ii * 2 + 1], interp->polyobj.bakvertices[ii * 2 + 1], frac);
}
+ RecalculatePolyobjectSegAngles(interp->polyobj.polyobj);
interp->polyobj.polyobj->centerPt.x = R_LerpFixed(interp->polyobj.oldcx, interp->polyobj.bakcx, frac);
interp->polyobj.polyobj->centerPt.y = R_LerpFixed(interp->polyobj.oldcy, interp->polyobj.bakcy, frac);
+ interp->polyobj.polyobj->angle = R_LerpAngle(interp->polyobj.oldangle, interp->polyobj.bakangle, frac);
break;
case LVLINTERP_DynSlope:
R_LerpVector3(&interp->dynslope.oldo, &interp->dynslope.bako, frac, &interp->dynslope.slope->o);
@@ -679,8 +694,10 @@ void R_RestoreLevelInterpolators(void)
interp->polyobj.polyobj->vertices[ii]->x = interp->polyobj.bakvertices[ii * 2 ];
interp->polyobj.polyobj->vertices[ii]->y = interp->polyobj.bakvertices[ii * 2 + 1];
}
+ RecalculatePolyobjectSegAngles(interp->polyobj.polyobj);
interp->polyobj.polyobj->centerPt.x = interp->polyobj.bakcx;
interp->polyobj.polyobj->centerPt.y = interp->polyobj.bakcy;
+ interp->polyobj.polyobj->angle = interp->polyobj.bakangle;
break;
case LVLINTERP_DynSlope:
FV3_Copy(&interp->dynslope.slope->o, &interp->dynslope.bako);
diff --git a/src/r_fps.h b/src/r_fps.h
index f43d29f30..cd40b0a9a 100644
--- a/src/r_fps.h
+++ b/src/r_fps.h
@@ -108,6 +108,7 @@ typedef struct levelinterpolator_s {
fixed_t *bakvertices;
size_t vertices_size;
fixed_t oldcx, oldcy, bakcx, bakcy;
+ angle_t oldangle, bakangle;
} polyobj;
struct {
pslope_t *slope;