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#include "engine.h"
VAR(importcuberemip, 0, 1024, 2048);
struct cubeloader
{
enum
{
DEFAULT_LIQUID = 1,
DEFAULT_WALL,
DEFAULT_FLOOR,
DEFAULT_CEIL
};
enum // block types, order matters!
{
C_SOLID = 0, // entirely solid cube [only specifies wtex]
C_CORNER, // half full corner of a wall
C_FHF, // floor heightfield using neighbour vdelta values
C_CHF, // idem ceiling
C_SPACE, // entirely empty cube
C_SEMISOLID, // generated by mipmapping
C_MAXTYPE
};
struct c_sqr
{
uchar type; // one of the above
char floor, ceil; // height, in cubes
uchar wtex, ftex, ctex; // wall/floor/ceil texture ids
uchar vdelta; // vertex delta, used for heightfield cubes
uchar utex; // upper wall tex id
};
struct c_persistent_entity // map entity
{
short x, y, z; // cube aligned position
short attr1;
uchar type; // type is one of the above
uchar attr2, attr3, attr4;
};
struct c_header // map file format header
{
char head[4]; // "CUBE"
int version; // any >8bit quantity is little endian
int headersize; // sizeof(header)
int sfactor; // in bits
int numents;
char maptitle[128];
uchar texlists[3][256];
int waterlevel;
int reserved[15];
};
c_sqr *world;
int ssize;
int x0, x1, y0, y1, z0, z1;
c_sqr *o[4];
int lastremip;
int progress;
void create_ent(c_persistent_entity &ce)
{
if(ce.type>=7) ce.type++; // grenade ammo
if(ce.type>=8) ce.type++; // pistol ammo
if(ce.type==16) ce.type = ET_MAPMODEL;
else if(ce.type>=ET_MAPMODEL && ce.type<16) ce.type++;
if(ce.type>=ET_ENVMAP) ce.type++;
if(ce.type>=ET_PARTICLES) ce.type++;
if(ce.type>=ET_SOUND) ce.type++;
if(ce.type>=ET_SPOTLIGHT) ce.type++;
extentity &e = *entities::newentity();
entities::getents().add(&e);
e.type = ce.type;
e.o = vec(ce.x*4+worldsize/4, ce.y*4+worldsize/4, ce.z*4+worldsize/2);
e.light.color = vec(1, 1, 1);
e.light.dir = vec(0, 0, 1);
e.attr1 = ce.attr1;
e.attr2 = ce.attr2;
switch(e.type)
{
case ET_MAPMODEL:
e.o.z += ce.attr3*4;
e.attr3 = e.attr4 = 0;
break;
case ET_LIGHT:
e.attr1 *= 4;
if(!ce.attr3 && !ce.attr4) { e.attr3 = e.attr4 = e.attr2; break; }
// fall through
default:
e.attr3 = ce.attr3;
e.attr4 = ce.attr4;
break;
}
switch(e.type)
{
case ET_PLAYERSTART:
case ET_MAPMODEL:
case ET_GAMESPECIFIC+12: // teleport
case ET_GAMESPECIFIC+13: // monster
e.attr1 = (int(e.attr1)+180)%360;
break;
}
e.attr5 = 0;
}
cube &getcube(int x, int y, int z)
{
return lookupcube(ivec(x*4+worldsize/4, y*4+worldsize/4, z*4+worldsize/2), 4);
}
int neighbours(c_sqr &t)
{
o[0] = &t;
o[1] = &t+1;
o[2] = &t+ssize;
o[3] = &t+ssize+1;
int best = 0xFFFF;
loopi(4) if(o[i]->vdelta<best) best = o[i]->vdelta;
return best;
}
void preprocess_cubes() // pull up heighfields to where they don't cross cube boundaries
{
for(;;)
{
bool changed = false;
loop(x, ssize)
{
loop(y, ssize)
{
c_sqr &t = world[x+y*ssize];
if(t.type==C_FHF || t.type==C_CHF)
{
int bottom = (neighbours(t)&(~3))+4;
loopj(4) if(o[j]->vdelta>bottom) { o[j]->vdelta = bottom; changed = true; }
}
}
}
if(!changed) break;
}
}
int getfloorceil(c_sqr &s, int &floor, int &ceil)
{
floor = s.floor;
ceil = s.ceil;
int cap = 0;
switch(s.type)
{
case C_SOLID: floor = ceil; break;
case C_FHF: floor -= (cap = neighbours(s)&(~3))/4; break;
case C_CHF: ceil += (cap = neighbours(s)&(~3))/4; break;
}
return cap;
}
void boundingbox()
{
x0 = y0 = ssize;
x1 = y1 = 0;
z0 = 128;
z1 = -128;
loop(x, ssize) loop(y, ssize)
{
c_sqr &t = world[x+y*ssize];
if(t.type!=C_SOLID)
{
if(x<x0) x0 = x;
if(y<y0) y0 = y;
if(x>x1) x1 = x;
if(y>y1) y1 = y;
int floor, ceil;
getfloorceil(t, floor, ceil);
if(floor<z0) z0 = floor;
if(ceil>z1) z1 = ceil;
}
}
}
void hf(int x, int y, int z, int side, int dir, int cap)
{
cube &c = getcube(x, y, z);
loopi(2) loopj(2) edgeset(cubeedge(c, 2, i, j), side, dir*(o[(j<<1)+i]->vdelta-cap)*2+side*8);
}
bool cornersolid(int z, c_sqr *s) { return s->type==C_SOLID || z<s->floor || z>=s->ceil; }
void createcorner(cube &c, int lstart, int lend, int rstart, int rend)
{
int ledge = edgemake(lstart, lend);
int redge = edgemake(rstart, rend);
cubeedge(c, 1, 0, 0) = ledge;
cubeedge(c, 1, 1, 0) = ledge;
cubeedge(c, 1, 0, 1) = redge;
cubeedge(c, 1, 1, 1) = redge;
}
void create_cubes()
{
preprocess_cubes();
boundingbox();
lastremip = allocnodes;
progress = 0;
for(int x = x0-1; x<=x1+1; x++) for(int y = y0-1; y<=y1+1; y++)
{
c_sqr &s = world[x+y*ssize];
int floor, ceil, cap = getfloorceil(s, floor, ceil);
for(int z = z0-1; z<=z1+1; z++)
{
cube &c = getcube(x, y, z);
c.texture[O_LEFT] = c.texture[O_RIGHT] = c.texture[O_BACK] = c.texture[O_FRONT] = s.type!=C_SOLID && z<ceil ? s.wtex : s.utex;
c.texture[O_BOTTOM] = s.ctex;
c.texture[O_TOP] = s.ftex;
if(z>=floor && z<ceil)
{
setfaces(c, F_EMPTY);
}
else if(s.type==C_CORNER)
{
c_sqr *ts, *bs, *ls, *rs;
bool tc = cornersolid(z, ts = &s-ssize);
bool bc = cornersolid(z, bs = &s+ssize);
bool lc = cornersolid(z, ls = &s-1);
bool rc = cornersolid(z, rs = &s+1);
if (tc && lc && !bc && !rc) createcorner(c, 0, 8, 0, 0); // TOP LEFT
else if(tc && !lc && !bc && rc) createcorner(c, 0, 0, 0, 8); // TOP RIGHT
else if(!tc && lc && bc && !rc) createcorner(c, 0, 8, 8, 8); // BOT LEFT
else if(!tc && !lc && bc && rc) createcorner(c, 8, 8, 0, 8); // BOT RIGHT
else // fix texture on ground of a corner
{
if (ts->floor-1==z && bs->floor-1!=z) { c.texture[O_TOP] = ts->ftex; }
else if (ts->floor-1!=z && bs->floor-1==z) { c.texture[O_TOP] = bs->ftex; }
if (ts->ceil==z && bs->ceil!=z) { c.texture[O_BOTTOM] = ts->ctex; }
else if (ts->ceil!=z && bs->ceil==z) { c.texture[O_BOTTOM] = bs->ctex; }
}
}
}
switch(s.type)
{
case C_FHF: hf(x, y, floor-1, 1, -1, cap); break;
case C_CHF: hf(x, y, ceil, 0, 1, cap); break;
}
if(importcuberemip && (allocnodes - lastremip) * 8 > importcuberemip * 1024)
{
mpremip(true);
lastremip = allocnodes;
}
if((progress++&0x7F)==0)
{
float bar = float((y1-y0+2)*(x-x0+1) + y-y0+1) / float((y1-y0+2)*(x1-x0+2));
defformatstring(text, "creating cubes... %d%%", int(bar*100));
renderprogress(bar, text);
}
}
}
void load_cube_world(char *mname)
{
int loadingstart = SDL_GetTicks();
string pakname, cgzname;
formatstring(pakname, "cube/%s", mname);
formatstring(cgzname, "packages/%s.cgz", pakname);
stream *f = opengzfile(path(cgzname), "rb");
if(!f) { conoutf(CON_ERROR, "could not read cube map %s", cgzname); return; }
c_header hdr;
f->read(&hdr, sizeof(c_header)-sizeof(int)*16);
lilswap(&hdr.version, 4);
bool mod = false;
if(strncmp(hdr.head, "CUBE", 4))
{
if(!strncmp(hdr.head, "ACMP", 4)) mod = true;
else
{
conoutf(CON_ERROR, "map %s has malformatted header", cgzname);
delete f;
return;
}
}
else if(hdr.version>5) mod = true;
if(hdr.version>5 && !mod) { conoutf(CON_ERROR, "map %s requires a newer version of the Cube 1 importer", cgzname); delete f; return; }
if(!haslocalclients()) game::forceedit("");
emptymap(12, true, NULL);
freeocta(worldroot);
worldroot = newcubes(F_SOLID);
defformatstring(cs, "importing %s", cgzname);
renderbackground(cs);
if(hdr.version>=4)
{
f->read(&hdr.waterlevel, sizeof(int)*16);
lilswap(&hdr.waterlevel, 16);
}
else
{
hdr.waterlevel = -100000;
}
if(mod) f->seek(hdr.numents*sizeof(c_persistent_entity), SEEK_CUR);
else loopi(hdr.numents)
{
c_persistent_entity e;
f->read(&e, sizeof(c_persistent_entity));
lilswap(&e.x, 4);
if(i < MAXENTS) create_ent(e);
}
ssize = 1<<hdr.sfactor;
world = new c_sqr[ssize*ssize];
c_sqr *t = NULL;
loopk(ssize*ssize)
{
c_sqr *s = &world[k];
int type = f->getchar();
switch(type)
{
case 255:
{
int n = f->getchar();
for(int i = 0; i<n; i++, k++) memcpy(&world[k], t, sizeof(c_sqr));
k--;
break;
}
case 254: // only in MAPVERSION<=2
{
memcpy(s, t, sizeof(c_sqr));
f->getchar();
f->getchar();
break;
}
case C_SOLID:
{
s->type = C_SOLID;
s->wtex = f->getchar();
s->vdelta = f->getchar();
if(hdr.version<=2) { f->getchar(); f->getchar(); }
s->ftex = DEFAULT_FLOOR;
s->ctex = DEFAULT_CEIL;
s->utex = s->wtex;
s->floor = 0;
s->ceil = 16;
break;
}
default:
{
if(type<0 || type>=C_MAXTYPE)
{
defformatstring(t, "%d @ %d", type, k);
fatal("while reading map: type out of range: %s", t);
}
s->type = type;
s->floor = f->getchar();
s->ceil = f->getchar();
if(s->floor>=s->ceil) s->floor = s->ceil-1; // for pre 12_13
s->wtex = f->getchar();
s->ftex = f->getchar();
s->ctex = f->getchar();
if(hdr.version<=2) { f->getchar(); f->getchar(); }
s->vdelta = f->getchar();
s->utex = (hdr.version>=2) ? f->getchar() : s->wtex;
if(hdr.version>=5) f->getchar();
s->type = type;
}
}
t = s;
}
delete f;
string cfgname;
formatstring(cfgname, "packages/cube/%s.cfg", mname);
identflags |= IDF_OVERRIDDEN;
execfile("packages/cube/package.cfg");
execfile(path(cfgname));
identflags &= ~IDF_OVERRIDDEN;
create_cubes();
mpremip(true);
clearlights();
allchanged();
vector<extentity *> &ents = entities::getents();
loopv(ents) if(ents[i]->type!=ET_LIGHT) dropenttofloor(ents[i]);
entitiesinoctanodes();
conoutf("read cube map %s (%.1f seconds)", cgzname, (SDL_GetTicks()-loadingstart)/1000.0f);
startmap(NULL);
}
};
void importcube(char *name)
{
if(multiplayer()) return;
cubeloader().load_cube_world(name);
}
COMMAND(importcube, "s");
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