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Only draw thing if its in the subsector

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This commit is contained in:
Magnus Norddahl 2016-11-08 05:48:45 +01:00
parent d0f0500f0d
commit 2e2d6da00f
2 changed files with 20 additions and 6 deletions
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22
src/r_poly.cpp
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@ -152,9 +152,9 @@ void RenderPolyBsp::RenderSubsector(subsector_t *sub)
for (AActor *thing = sub->sector->thinglist; thing != nullptr; thing = thing->snext)
{
if ((thing->renderflags & RF_SPRITETYPEMASK) == RF_WALLSPRITE)
AddWallSprite(thing);
AddWallSprite(thing, sub);
else
AddSprite(thing);
AddSprite(thing, sub);
}
}
@ -273,7 +273,7 @@ bool RenderPolyBsp::IsThingCulled(AActor *thing)
return false;
}
void RenderPolyBsp::AddSprite(AActor *thing)
void RenderPolyBsp::AddSprite(AActor *thing, subsector_t *sub)
{
if (IsThingCulled(thing))
return;
@ -308,6 +308,20 @@ void RenderPolyBsp::AddSprite(AActor *thing)
{ pos.X + ViewSin * spriteHalfWidth, pos.Y - ViewCos * spriteHalfWidth }
};
// Is this sprite inside? (To do: clip the points)
for (int i = 0; i < 2; i++)
{
for (uint32_t i = 0; i < sub->numlines; i++)
{
seg_t *line = &sub->firstline[i];
double nx = line->v1->fY() - line->v2->fY();
double ny = line->v2->fX() - line->v1->fX();
double d = -(line->v1->fX() * nx + line->v1->fY() * ny);
if (pos.X * nx + pos.Y * ny + d > 0.0)
return;
}
}
//double depth = 1.0;
//visstyle_t visstyle = GetSpriteVisStyle(thing, depth);
// Rumor has it that AlterWeaponSprite needs to be called with visstyle passed in somewhere around here..
@ -347,7 +361,7 @@ void RenderPolyBsp::AddSprite(AActor *thing)
TriangleDrawer::draw(worldToClip, vertices, 4, TriangleDrawMode::Fan, false, 0, viewwidth, cliptop, clipbottom, tex);
}
void RenderPolyBsp::AddWallSprite(AActor *thing)
void RenderPolyBsp::AddWallSprite(AActor *thing, subsector_t *sub)
{
if (IsThingCulled(thing))
return;

4
src/r_poly.h
View file

@ -62,8 +62,8 @@ private:
void AddLine(seg_t *line, sector_t *frontsector);
TriVertex PlaneVertex(vertex_t *v1, sector_t *sector, const secplane_t &plane);
void AddSprite(AActor *thing);
void AddWallSprite(AActor *thing);
void AddSprite(AActor *thing, subsector_t *sub);
void AddWallSprite(AActor *thing, subsector_t *sub);
bool IsThingCulled(AActor *thing);
visstyle_t GetSpriteVisStyle(AActor *thing, double z);
FTexture *GetSpriteTexture(AActor *thing, /*out*/ bool &flipX);