mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-12-15 23:21:46 +00:00
163 lines
3.3 KiB
C++
163 lines
3.3 KiB
C++
/*
|
|
** r_3dfloors.cpp
|
|
** software 3D floors addon
|
|
**
|
|
** by kgsws
|
|
*/
|
|
|
|
#include "templates.h"
|
|
#include "doomdef.h"
|
|
#include "p_local.h"
|
|
#include "c_dispatch.h"
|
|
#include "r_local.h"
|
|
#include "r_bsp.h"
|
|
#include "r_plane.h"
|
|
#include "c_cvars.h"
|
|
#include "r_3dfloors.h"
|
|
|
|
// external variables
|
|
int fake3D;
|
|
F3DFloor *fakeFloor;
|
|
fixed_t fakeHeight;
|
|
fixed_t fakeAlpha;
|
|
int fakeActive = 0;
|
|
fixed_t sclipBottom;
|
|
fixed_t sclipTop;
|
|
HeightLevel *height_top = NULL;
|
|
HeightLevel *height_cur = NULL;
|
|
int CurrentMirror = 0;
|
|
int CurrentSkybox = 0;
|
|
|
|
CVAR(Int, r_3dfloors, true, 0);
|
|
|
|
// private variables
|
|
int height_max = -1;
|
|
TArray<HeightStack> toplist;
|
|
ClipStack *clip_top = NULL;
|
|
ClipStack *clip_cur = NULL;
|
|
|
|
void R_3D_DeleteHeights()
|
|
{
|
|
height_cur = height_top;
|
|
while(height_cur) {
|
|
height_top = height_cur;
|
|
height_cur = height_cur->next;
|
|
M_Free(height_top);
|
|
}
|
|
height_max = -1;
|
|
height_top = height_cur = NULL;
|
|
}
|
|
|
|
void R_3D_AddHeight(secplane_t *add, sector_t *sec)
|
|
{
|
|
HeightLevel *near;
|
|
HeightLevel *curr;
|
|
fixed_t height;
|
|
|
|
height = add->ZatPoint(viewx, viewy);
|
|
if(height >= sec->CenterCeiling()) return;
|
|
if(height <= sec->CenterFloor()) return;
|
|
|
|
fakeActive = 1;
|
|
|
|
if(height_max >= 0) {
|
|
near = height_top;
|
|
while(near && near->height < height) near = near->next;
|
|
if(near) {
|
|
if(near->height == height) return;
|
|
curr = (HeightLevel*)M_Malloc(sizeof(HeightLevel));
|
|
curr->height = height;
|
|
curr->prev = near->prev;
|
|
curr->next = near;
|
|
if(near->prev) near->prev->next = curr;
|
|
else height_top = curr;
|
|
near->prev = curr;
|
|
} else {
|
|
curr = (HeightLevel*)M_Malloc(sizeof(HeightLevel));
|
|
curr->height = height;
|
|
curr->prev = height_cur;
|
|
curr->next = NULL;
|
|
height_cur->next = curr;
|
|
height_cur = curr;
|
|
}
|
|
} else {
|
|
height_top = height_cur = (HeightLevel*)M_Malloc(sizeof(HeightLevel));
|
|
height_top->height = height;
|
|
height_top->prev = NULL;
|
|
height_top->next = NULL;
|
|
}
|
|
height_max++;
|
|
}
|
|
|
|
void R_3D_NewClip()
|
|
{
|
|
ClipStack *curr;
|
|
// extern short floorclip[MAXWIDTH];
|
|
// extern short ceilingclip[MAXWIDTH];
|
|
|
|
curr = (ClipStack*)M_Malloc(sizeof(ClipStack));
|
|
curr->next = 0;
|
|
memcpy(curr->floorclip, floorclip, sizeof(short) * MAXWIDTH);
|
|
memcpy(curr->ceilingclip, ceilingclip, sizeof(short) * MAXWIDTH);
|
|
curr->ffloor = fakeFloor;
|
|
assert(fakeFloor->floorclip == NULL);
|
|
assert(fakeFloor->ceilingclip == NULL);
|
|
fakeFloor->floorclip = curr->floorclip;
|
|
fakeFloor->ceilingclip = curr->ceilingclip;
|
|
if(clip_top) {
|
|
clip_cur->next = curr;
|
|
clip_cur = curr;
|
|
} else {
|
|
clip_top = clip_cur = curr;
|
|
}
|
|
}
|
|
|
|
void R_3D_ResetClip()
|
|
{
|
|
clip_cur = clip_top;
|
|
while(clip_cur)
|
|
{
|
|
assert(clip_cur->ffloor->floorclip != NULL);
|
|
assert(clip_cur->ffloor->ceilingclip != NULL);
|
|
clip_cur->ffloor->ceilingclip = clip_cur->ffloor->floorclip = NULL;
|
|
clip_top = clip_cur;
|
|
clip_cur = clip_cur->next;
|
|
M_Free(clip_top);
|
|
}
|
|
clip_cur = clip_top = NULL;
|
|
}
|
|
|
|
void R_3D_EnterSkybox()
|
|
{
|
|
HeightStack current;
|
|
|
|
current.height_top = height_top;
|
|
current.height_cur = height_cur;
|
|
current.height_max = height_max;
|
|
|
|
toplist.Push(current);
|
|
|
|
height_top = NULL;
|
|
height_cur = NULL;
|
|
height_max = -1;
|
|
|
|
CurrentSkybox++;
|
|
}
|
|
|
|
void R_3D_LeaveSkybox()
|
|
{
|
|
HeightStack current;
|
|
|
|
current.height_top = NULL;
|
|
current.height_cur = NULL;
|
|
current.height_max = -1;
|
|
|
|
toplist.Pop(current);
|
|
|
|
height_top = current.height_top;
|
|
height_cur = current.height_cur;
|
|
height_max = current.height_max;
|
|
|
|
CurrentSkybox--;
|
|
}
|
|
|