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map.cpp
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map.cpp
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// wkbre - WK (Battles) recreated game engine
// Copyright (C) 2015-2016 Adrien Geets
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// void LoadMapBCM(char *filename);
// void DrawMap();
#include "global.h"
int mapwidth, mapheight, mapedge, mapnverts, mapfogcolor; float maphiscale;
float *himap = 0; uchar *himap_byte = 0;
MapTile *maptiles;
int mapsuncolor; Vector3 mapsunvector;
DynList<Vector3> maplakes;
char mapskytexdir[256];
char lastmap[256];
texture grass, gridtex; RBatch *mapbatch;
bool usemaptexdb = 1;
bool showMapGrid = 0;
GrowList<MapPart> mparts;
uint mappartw = 32, mapparth = 32;
uint npartsw, npartsh;
texture skyboxtex[5];
///// Bit Reading /////
char *bytepos; unsigned int bitpos = 0;
int readbit()
{
int a;
if(bitpos >= 8) {bitpos = 0; bytepos++;}
a = ((*bytepos) & (1<<bitpos))?1:0;
bitpos++;
//if(bitpos >= 8) {bitpos = 0; bytepos++;}
return a;
}
int readnb(int b)
{
int a = 0, i;
for(i = 0; i < b; i++)
a |= readbit() << i;
return a;
}
///////////////////////
void InitMap()
{
grass = GetTexture("grass.tga");
gridtex = GetTexture("grid.tga");
if(usemaptexdb)
{
//mapbatch = renderer->CreateBatch(2*8192, 3*8192);
//mapbatch = renderer->CreateBatch(2*768, 3*768);
//mapbatch = renderer->CreateBatch(2*400, 3*400);
//mapbatch = renderer->CreateBatch(2*1024, 3*1024);
mapbatch = renderer->CreateBatch(4*1024, 6*1024);
}
}
void CloseMap()
{
if(!himap) return;
free(himap); himap = 0;
free(himap_byte); himap_byte = 0;
delete [] maptiles; maptiles = 0;
maplakes.clear();
for(int i = 0; i < mparts.len; i++)
{
MapPart *p = mparts.getpnt(i);
renderer->FreeMapPart(p);
delete [] p->tpt;
}
mparts.clear();
FreeMapTextures();
}
int GetMaxBits(int x)
{
for(int i = 1; i < 32; i++)
if((1 << i) > x) // > sign (not >=) intentional!
return i;
//assert(0 & (int)"no max bits found");
return 0;
}
void LoadMapBCM(char *filename, int bitoff)
{
char *fcnt, *fp; int fsize, strs;
LoadFile(filename, &fcnt, &fsize);
fp = fcnt + 12;
mapwidth = *(int*)fp; fp += 4;
mapheight = *(int*)fp; fp += 4;
mapedge = *(int*)fp; fp += 4;
strs = *(ushort*)fp; fp += 2 + strs;
maphiscale = *(float*)fp; fp += 4;
mapsuncolor = (*(uchar*)fp<<16) | ((*(uchar*)(fp+4))<<8) | (*(uchar*)(fp+8)); fp += 12;
mapsunvector.x = *(float*)fp; mapsunvector.y = *(float*)(fp+4); mapsunvector.z = *(float*)(fp+8); fp += 12;
mapfogcolor = (*(uchar*)fp<<16) | ((*(uchar*)(fp+4))<<8) | (*(uchar*)(fp+8)); fp += 12;
strs = *(ushort*)fp / 2; fp += 2;
if(strs > sizeof(mapskytexdir)) ferr("Sky texture directory path in BCM is too long.");
for(int i = 0; i < strs; i++)
{mapskytexdir[i] = *fp; fp += 2;}
mapnverts = (mapwidth+1)*(mapheight+1);
himap = (float*)malloc(mapnverts*sizeof(float));
himap_byte = (uchar*)malloc(mapnverts);
if(!(himap && himap_byte)) ferr("No mem. left for heightmap.");
bytepos = fp + 0xC000; bitpos = 0;
// Lakes
int mapnlakes = readnb(6);
for(int i = 0; i < mapnlakes; i++)
{
maplakes.add();
Vector3 *v = &maplakes.last->value; int j;
j = readnb(32); v->x = *(float*)&j;
j = readnb(32); v->y = *(float*)&j;
j = readnb(32); v->z = *(float*)&j;
readnb(2);
}
// Group name table
int nnames = readnb(16);
MapTextureGroup **grptable = new MapTextureGroup*[nnames];
for(int i = 0; i < nnames; i++)
{
int n = readnb(8);
if(!usemaptexdb)
for(int j = 0; j < n; j++) readnb(8);
else
{
char *a = new char[n+1];
for(int j = 0; j < n; j++) a[j] = readnb(8);
a[n] = 0;
for(int j = 0; j < maptexgroup.len; j++)
if(!strcmp(a, maptexgroup.getpnt(j)->name))
{grptable[i] = maptexgroup.getpnt(j); goto grpfnd;}
ferr("BCM file uses unknown texture group.");
grpfnd: delete [] a;
}
}
// ID table
int nids = readnb(16);
int *idtable = new int[nids];
for(int i = 0; i < nids; i++)
idtable[i] = readnb(32);
// Tiles
maptiles = new MapTile[mapwidth*mapheight];
MapTile *t = maptiles;
int ngrpbits = GetMaxBits(nnames);
int nidbits = GetMaxBits(nids);
//for(int z = mapheight-1; z >= 0; z--)
for(int z = 0; z < mapheight; z++)
for(int x = 0; x < mapwidth; x++)
{
int tg = readnb(ngrpbits); int ti = readnb(nidbits);
int tr = readnb(2); int tx = readbit(); int tz = readbit();
if(!usemaptexdb) continue;
MapTextureGroup *g = grptable[tg];
int id = idtable[ti];
for(int i = 0; i < g->tex->len; i++)
if(g->tex->getpnt(i)->id == id)
{t->mt = g->tex->getpnt(i); goto mtfnd;}
ferr("BCM file uses unknown texture ID.");
mtfnd: t->rot = tr; t->xflip = tx; t->zflip = tz;
t->x = x; t->z = z;
t++;
}
delete [] grptable; delete [] idtable;
// ?
int nunk = readnb(32);
readnb(32); // this should return 0x62
for(int i = 0; i < nunk; i++)
{readnb(ngrpbits); readnb(nidbits);}
// Heightmap
for(int i = 0; i < mapnverts; i++)
{
himap_byte[i] = (uchar)readnb(8);
himap[i] = (float)himap_byte[i] * maphiscale;
}
free(fcnt);
}
void LoadMapSNR(char *filename)
{
char *fcnt, *fp; int fsize;
char sfnpcx[256], sfntrn[256];
LoadFile(filename, &fcnt, &fsize, 1);
fcnt[fsize] = 0; fp = fcnt;
char wwl[MAX_LINE_SIZE], *word[MAX_WORDS_IN_LINE]; int nwords;
while(*fp)
{
fp = GetLine(fp, wwl);
nwords = GetWords(wwl, word);
if(!nwords) continue;
if(!strcmp(word[0], "SCENARIO_DIMENSIONS"))
{mapwidth = atoi(word[1]); mapheight = atoi(word[2]);}
else if(!strcmp(word[0], "SCENARIO_EDGE_WIDTH"))
mapedge = atoi(word[1]);
else if(!strcmp(word[0], "SCENARIO_HEIGHT_SCALE_FACTOR"))
maphiscale = atof(word[1]);
else if(!strcmp(word[0], "SCENARIO_HEIGHTMAP"))
strcpy_s(sfnpcx, 255, word[1]);
else if(!strcmp(word[0], "SCENARIO_FOG_COLOUR"))
mapfogcolor = (atoi(word[1]) << 16) | (atoi(word[2]) << 8) | atoi(word[3]);
else if(!strcmp(word[0], "SCENARIO_TERRAIN"))
strcpy_s(sfntrn, 255, word[1]);
else if(!strcmp(word[0], "SCENARIO_SUN_COLOUR"))
mapsuncolor = (atoi(word[1]) << 16) | (atoi(word[2]) << 8) | atoi(word[3]);
else if(!strcmp(word[0], "SCENARIO_SUN_VECTOR"))
mapsunvector = Vector3(atof(word[1]), atof(word[2]), atof(word[3]));
else if(!strcmp(word[0], "SCENARIO_SKY_TEXTURES_DIRECTORY"))
strcpy_s(mapskytexdir, 255, word[1]);
else if(!strcmp(word[0], "SCENARIO_LAKE"))
{maplakes.add(); maplakes.last->value = Vector3(atof(word[1]), atof(word[2]), atof(word[3]));}
}
free(fcnt);
// Tiles
maptiles = new MapTile[mapwidth*mapheight];
if(!usemaptexdb) goto notiles;
LoadFile(sfntrn, &fcnt, &fsize, 1);
fcnt[fsize] = 0; fp = fcnt;
while(*fp)
{
fp = GetLine(fp, wwl);
nwords = GetWords(wwl, word);
if(!nwords) continue;
int x = atoi(word[1]) - 1, z = mapheight - atoi(word[3]);
MapTile *t = maptiles + z * mapwidth + x;
MapTextureGroup *g; int id = atoi(word[7]);
for(int i = 0; i < maptexgroup.len; i++)
if(!strcmp(maptexgroup.getpnt(i)->name, word[5]))
{g = maptexgroup.getpnt(i); goto tgfnd;}
ferr("TRN file uses unknown texture group.");
tgfnd: for(int i = 0; i < g->tex->len; i++)
if(g->tex->getpnt(i)->id == id)
{t->mt = g->tex->getpnt(i); goto idfnd;}
ferr("TRN file uses unknown texture ID.");
idfnd: t->rot = atoi(word[9]);
t->xflip = atoi(word[11]);
t->zflip = atoi(word[13]);
t->x = x; t->z = z;
}
free(fcnt);
notiles:
// Heightmap
mapnverts = (mapwidth+1)*(mapheight+1);
himap = (float*)malloc(mapnverts*sizeof(float));
himap_byte = (uchar*)malloc(mapnverts);
if(!(himap && himap_byte)) ferr("No mem. left for heightmap.");
Bitmap *bm = LoadBitmap(sfnpcx);
if(bm->form != BMFORMAT_P8)
ferr("SNR heightmap must be an 8 bpp bitmap file!");
if((bm->w != mapwidth + 1) || (bm->h != mapheight + 1))
ferr("SNR heightmap bitmap has size (%i, %i), but (%i, %i) is expected.", bm->w, bm->h, mapwidth+1, mapheight+1);
memcpy(himap_byte, bm->pix, mapnverts);
for(int i = 0; i < mapnverts; i++)
himap[i] = (float)himap_byte[i] * maphiscale;
FreeBitmap(bm);
}
void GetMapVertexNormal(Vector3 *out, int vx, int vz)
{
Vector3 r(0,0,0);
float a, b, c, d, h;
h = himap[vz*(mapwidth+1)+vx];
if(vz > 0) a = himap[(vz-1)*(mapwidth+1) +vx ] - h;
if(vx > 0) b = himap[ vz *(mapwidth+1) +vx-1] - h;
if(vz < mapheight) c = himap[(vz+1)*(mapwidth+1) +vx ] - h;
if(vx < mapwidth) d = himap[ vz *(mapwidth+1) +vx+1] - h;
if(vx > 0 && vz > 0) r += Vector3( b, 5, -a);
if(vx > 0 && vz < mapheight) r += Vector3( b, 5, c);
if(vx < mapwidth && vz < mapheight) r += Vector3(-d, 5, c);
if(vx < mapwidth && vz > 0) r += Vector3(-d, 5, -a);
*out = r.normal();
}
uint GetMapVertexColor(int vx, int vz)
{
uint rc; Vector3 n, s;
GetMapVertexNormal(&n, vx, vz);
s = mapsunvector.normal();
float dp = n.dot(s);
//float i = (dp + 1) / 4 + 0.5f;
float i = (dp + 1) / 2;
//float i = 1 - acos(dp) / M_PI;
//float i = (dp <= 0.28f) ? 0.28f : dp;
//float i = (dp > 0) ? dp : 0;
//float i = (dp+1) * 3 / 8 + 0.25f;
if((vx < mapedge) || (vx > mapwidth-mapedge) ||
(vz < mapedge) || (vz > mapheight-mapedge) )
i /= 2.0f;
uchar b = i * 255;
rc = 0xFF000000 | (b) | (b<<8) | (b<<16);
return renderer->ConvertColor(rc);
}
void SetTileWaterLevel(int sx, int sz, float wl, DynListEntry<Vector3> *lake)
{
MapTile *t = &(maptiles[sz*mapwidth+sx]);
t->waterlev = wl;
t->lake = lake;
if(wl > himap[sz*(mapwidth+1)+sx])
if(wl > himap[sz*(mapwidth+1)+sx+1])
if(wl > himap[(sz+1)*(mapwidth+1)+sx])
if(wl > himap[(sz+1)*(mapwidth+1)+sx+1])
t->fullWater = 1;
}
bool IsFillableWithWater(int sx, int sz, float wl)
{
if((sx < 0) || (sx >= mapwidth) || (sz < 0) || (sz >= mapheight)) return 0;
MapTile *t = &(maptiles[sz*mapwidth+sx]);
if(t->lake) if(wl <= t->waterlev)
return 0;
if(wl <= himap[sz*(mapwidth+1)+sx])
if(wl <= himap[sz*(mapwidth+1)+sx+1])
if(wl <= himap[(sz+1)*(mapwidth+1)+sx])
if(wl <= himap[(sz+1)*(mapwidth+1)+sx+1])
return 0;
return 1;
}
void FillLineWithWater(int sx, int sz, float wl, DynListEntry<Vector3> *lake)
{
//if((sx < 0) || (sx >= mapwidth) || (sz < 0) || (sz >= mapheight)) return;
if(!IsFillableWithWater(sx, sz, wl)) return;
SetTileWaterLevel(sx, sz, wl, lake);
// 1. Fill the line.
int x, xmin, xmax;
for(x = sx - 1; IsFillableWithWater(x, sz, wl); x--)
SetTileWaterLevel(x, sz, wl, lake);
xmin = x + 1;
for(x = sx + 1; IsFillableWithWater(x, sz, wl); x++)
SetTileWaterLevel(x, sz, wl, lake);
xmax = x - 1;
// 2. Check above and below the line to fill additional lines.
for(x = xmin; x <= xmax; x++)
{
FillLineWithWater(x, sz-1, wl, lake);
FillLineWithWater(x, sz+1, wl, lake);
}
}
void FloodfillWater()
{
// Reset water height for every tile
for(int i = 0; i < mapwidth*mapheight; i++)
{
maptiles[i].waterlev = -1;
maptiles[i].lake = 0;
maptiles[i].fullWater = 0;
}
for(DynListEntry<Vector3> *e = maplakes.first; e; e = e->next)
{
Vector3 *lake = &e->value;
FillLineWithWater(lake->x / 5, mapheight - lake->z / 5, lake->y, e);
}
}
void CreateMapPart(int x, int y, int w, int h)
{
MapPart *p = mparts.addp();
p->x = x; p->y = y; p->w = w; p->h = h;
p->minhi = 255*maphiscale; p->maxhi = 0;
// Determinate minimum and maximum height.
for(int b = 0; b < h+1; b++)
for(int a = 0; a < w+1; a++)
{
float m = himap[(b+y)*(mapwidth+1)+(a+x)];
if(m > p->maxhi) p->maxhi = m;
if(m < p->minhi) p->minhi = m;
}
if(usemaptexdb)
{
// Group tiles in corresponding texture list
p->tpt = new DynList<MapTile*>[maptexfilenames.len];
for(int b = 0; b < h; b++)
for(int a = 0; a < w; a++)
{
MapTile *t = &maptiles[(b+y)*mapwidth+a+x];
p->tpt[t->mt->tfid].add(t);
t->pl = p->tpt;
t->ple = p->tpt[t->mt->tfid].last;
}
}
renderer->CreateMapPart(p, x, y, w, h);
}
void InitMapParts()
{
int mqx = mapwidth / mappartw, mrx = mapwidth % mappartw;
int mqy = mapheight / mapparth, mry = mapheight % mapparth;
npartsw = mqx + (mrx ? 1 : 0);
npartsh = mqy + (mry ? 1 : 0);
for(int y = 0; y < mqy; y++)
{
for(int x = 0; x < mqx; x++)
CreateMapPart(x*mappartw, y*mapparth, mappartw, mapparth);
if(mrx)
CreateMapPart(mqx*mappartw, y*mapparth, mrx, mapparth);
}
if(mry)
{
for(int x = 0; x < mqx; x++)
CreateMapPart(x*mappartw, mqy*mapparth, mappartw, mry);
if(mrx)
CreateMapPart(mqx*mappartw, mqy*mapparth, mrx, mry);
}
}
extern char newmapname[128];
void LoadMap(char *filename, int bitoff)
{
if(himap) CloseMap();
char *nwp = strrchr(filename, '\\');
if(!nwp) nwp = filename; else nwp++;
if(usemaptexdb)
{
char ln[512];
strcpy(ln, "Maps\\Map_Textures\\");
strcat(ln, nwp);
strcpy(strrchr(ln, '.')+1, "lttt");
//printf("LTTT filename is: %s\n", ln);
if(FileExists(ln)) LoadLTTT(ln);
LoadMapTextures();
FreeLTTT();
}
strcpy_s(lastmap, 255, filename);
strcpy_s(newmapname, 127, nwp);
char *nmne = strrchr(newmapname, '.');
if(nmne) *nmne = 0;
char *fe = strrchr(filename, '.');
if((tolower(fe[1]) == 'b') && (tolower(fe[2]) == 'c') && (tolower(fe[3]) == 'm'))
LoadMapBCM(filename, bitoff);
else LoadMapSNR(filename);
InitMapParts();
FloodfillWater();
// Load skybox textures
static char* skyfilenames[5] = { "sky_front.tga", "sky_right.tga", "sky_back.tga", "sky_left.tga", "sky_top.tga" };
char stn[512];
strcpy(stn, mapskytexdir);
char *pp = stn + strlen(stn);
for (int i = 0; i < 5; i++) {
strcpy(pp, skyfilenames[i]);
printf(stn);
skyboxtex[i] = LoadTexture(stn, 1, 1);
}
}
void DrawPart(MapPart *p)
{
renderer->DrawPart(p);
}
bool IsPartInFrontOfCam(int px, int py)
{
Vector3 v1((px+0)*mappartw, 0, (py+0)*mapparth),
v2((px+1)*mappartw, 0, (py+0)*mapparth),
v3((px+1)*mappartw, 0, (py+1)*mapparth),
v4((px+0)*mappartw, 0, (py+1)*mapparth),
t1, t2, t3, t4;
//Matrix m = mWorld * matView;
TransformVector3(&t1, &v1, &matrix);
TransformVector3(&t2, &v2, &matrix);
TransformVector3(&t3, &v3, &matrix);
TransformVector3(&t4, &v4, &matrix);
return (t1.z > 0) || (t2.z > 0) || (t3.z > 0) || (t4.z > 0);
}
bool IsTPInScreen(Vector3 &v)
{
Vector3 t;
TransformVector3(&t, &v, &matrix);
t.x /= t.z; t.y /= t.z;
if(abs(t.x) >= 1.2) return 0;
if(abs(t.y) >= 1.15) return 0;
if(t.z <= -1.5 || t.z >= farzvalue) return 0;
return 1;
}
bool IsTileInScreen(MapTile *c)
{
Vector3 v(c->x, himap[c->z*(mapwidth+1)+c->x], c->z);
if(IsTPInScreen(v)) return 1;
v = Vector3(c->x+1, himap[c->z*(mapwidth+1)+c->x+1], c->z);
if(IsTPInScreen(v)) return 1;
v = Vector3(c->x+1, himap[(c->z+1)*(mapwidth+1)+c->x+1], c->z+1);
if(IsTPInScreen(v)) return 1;
v = Vector3(c->x, himap[(c->z+1)*(mapwidth+1)+c->x], c->z+1);
if(IsTPInScreen(v)) return 1;
return 0;
}
bool IsWaterTileInScreen(MapTile *c)
{
Vector3 v(c->x, c->waterlev, c->z);
if(IsTPInScreen(v)) return 1;
v = Vector3(c->x+1, c->waterlev, c->z);
if(IsTPInScreen(v)) return 1;
v = Vector3(c->x+1, c->waterlev, c->z+1);
if(IsTPInScreen(v)) return 1;
v = Vector3(c->x, c->waterlev, c->z+1);
if(IsTPInScreen(v)) return 1;
return 0;
}
void CheckAndDrawPart(int px, int py)
{
if((px >= 0) && (px < npartsw) && (py >= 0) && (py < npartsh))
if(IsPartInFrontOfCam(px, py))
DrawPart(mparts.getpnt(py*npartsw+px));
}
void DrawMap()
{
renderer->BeginMapDrawing();
int cx = (int)camerapos.x / 5 + mapedge, cy = mapheight-2*mapedge-((int)camerapos.z / 5) + mapedge;
int px = cx / (int)mappartw, py = cy / (int)mapparth;
int sw = (farzvalue / (mappartw*5)) + 1;
int sh = (farzvalue / (mapparth*5)) + 1;
if(!usemaptexdb)
{
SetTexture(0, showMapGrid ? gridtex : grass);
for(int dy = -sh; dy <= sh; dy++)
for(int dx = -sw; dx <= sw; dx++)
CheckAndDrawPart(px + dx, py + dy);
}
else
{
renderer->BeginBatchDrawing();
mapbatch->begin();
if(showMapGrid) SetTexture(0, gridtex);
for(int i = 0; i < maptexfilenames.len; i++)
{int tns = 1;
for(int dy = -sh; dy <= sh; dy++)
for(int dx = -sw; dx <= sw; dx++)
{
int tx = px + dx, ty = py + dy;
if(!((tx >= 0) && (tx < npartsw) && (ty >= 0) && (ty < npartsh)))
continue;
if(!IsPartInFrontOfCam(tx, ty))
continue;
MapPart *mp = mparts.getpnt(ty*npartsw+tx);
for(DynListEntry<MapTile*> *e = mp->tpt[i].first; e; e = e->next)
{
MapTile *c = e->value;
if(!IsTileInScreen(c)) continue;
MapTexture *t = c->mt;
if(tns)
{
if(!showMapGrid)
SetTexture(0, t->t);
tns = 0;
}
batchVertex *bv; ushort *bi; uint fi;
mapbatch->next(4, 6, &bv, &bi, &fi);
int a = c->rot, f = ((c->zflip&1)?1:0) ^ ((c->xflip&1)?3:0);
/*
int difcol = -1;
if((c->x < mapedge) || (c->x >= mapwidth-mapedge) ||
(c->z < mapedge) || (c->z >= mapwidth-mapedge) )
difcol = 0xFF808080;
difcol = renderer->ConvertColor(difcol);
*/
float tu[4], tv[4];
tu[((0^f)+a)&3] = (t->x+0.5f) / 256.f; tv[((0^f)+a)&3] = (t->y+0.5f) / 256.f;
tu[((1^f)+a)&3] = (t->x+t->w-0.5f) / 256.f; tv[((1^f)+a)&3] = (t->y+0.5f) / 256.f;
tu[((2^f)+a)&3] = (t->x+t->w-0.5f) / 256.f; tv[((2^f)+a)&3] = (t->y+t->h-0.5f) / 256.f;
tu[((3^f)+a)&3] = (t->x+0.5f) / 256.f; tv[((3^f)+a)&3] = (t->y+t->h-0.5f) / 256.f;
bv[0].x = c->x;
bv[0].y = himap[(c->z+0)*(mapwidth+1)+c->x+0];
bv[0].z = c->z;
bv[0].color = GetMapVertexColor(c->x, c->z); //difcol;
if(showMapGrid) {bv[0].u = 0; bv[0].v = 0;}
else {bv[0].u = tu[0]; bv[0].v = tv[0];}
bv[1].x = c->x + 1;
bv[1].y = himap[(c->z+0)*(mapwidth+1)+c->x+1];
bv[1].z = c->z;
bv[1].color = GetMapVertexColor(c->x+1, c->z); //difcol;
if(showMapGrid) {bv[1].u = 1; bv[1].v = 0;}
else {bv[1].u = tu[1]; bv[1].v = tv[1];}
bv[2].x = c->x + 1;
bv[2].y = himap[(c->z+1)*(mapwidth+1)+c->x+1];
bv[2].z = c->z + 1;
bv[2].color = GetMapVertexColor(c->x+1, c->z+1); //difcol;
if(showMapGrid) {bv[2].u = 1; bv[2].v = 1;}
else {bv[2].u = tu[2]; bv[2].v = tv[2];}
bv[3].x = c->x;
bv[3].y = himap[(c->z+1)*(mapwidth+1)+c->x+0];
bv[3].z = c->z + 1;
bv[3].color = GetMapVertexColor(c->x, c->z+1); //difcol;
if(showMapGrid) {bv[3].u = 0; bv[3].v = 1;}
else {bv[3].u = tu[3]; bv[3].v = tv[3];}
bi[0] = fi+0; bi[1] = fi+3; bi[2] = fi+1;
bi[3] = fi+1; bi[4] = fi+3; bi[5] = fi+2;
}
} mapbatch->flush();}
mapbatch->end();
}
}
float GetHeight(float ipx, float ipy)
{
float x = mapedge + ipx / 5.0f, y = mapheight - (mapedge + ipy / 5.0f);
if(x < 0) x = 0; if(x >= mapwidth) x = mapwidth - 0.001f;
if(y < 0) y = 0; if(y >= mapheight) y = mapheight - 0.001f;
float h1 = himap[(int)y*(mapwidth+1)+(int)x], h2 = himap[(int)y*(mapwidth+1)+(int)x+1];
float h3 = himap[((int)y+1)*(mapwidth+1)+(int)x], h4 = himap[((int)y+1)*(mapwidth+1)+(int)x+1];
int rx = x; int ry = y;
float qx = x - rx, qy = y - ry;
float h5 = h1 * (1.0f-qx) + h2 * qx;
float h6 = h3 * (1.0f-qx) + h4 * qx;
float hr = h5 * (1.0f-qy) + h6 * qy;
return hr;
}
int lakedifcolor = 0x80FFFFFF;
void DrawLakes()
{
if(!usemaptexdb) return;
renderer->BeginLakeDrawing();
int cx = (int)camerapos.x / 5 + mapedge, cy = mapheight-2*mapedge-((int)camerapos.z / 5) + mapedge;
int px = cx / (int)mappartw, py = cy / (int)mapparth;
int sw = (farzvalue / (mappartw*5)) + 1;
int sh = (farzvalue / (mapparth*5)) + 1;
renderer->BeginBatchDrawing();
mapbatch->begin();
//SetTexture(0, gridtex);
NoTexture(0);
lakedifcolor = renderer->ConvertColor((mapfogcolor & 0xFFFFFF) | 0x80000000);
for(int dy = -sh; dy <= sh; dy++)
for(int dx = -sw; dx <= sw; dx++)
{
int tx = px + dx, ty = py + dy;
if(!((tx >= 0) && (tx < npartsw) && (ty >= 0) && (ty < npartsh)))
continue;
if(!IsPartInFrontOfCam(tx, ty))
continue;
MapPart *mp = mparts.getpnt(ty*npartsw+tx);
for(int i = 0; i < maptexfilenames.len; i++)
for(DynListEntry<MapTile*> *e = mp->tpt[i].first; e; e = e->next)
{
MapTile *c = e->value;
if(!c->lake) continue;
if(!IsWaterTileInScreen(c)) continue;
batchVertex *bv; ushort *bi; uint fi;
mapbatch->next(4, 6, &bv, &bi, &fi);
bv[0].x = c->x;
bv[0].y = c->waterlev;
bv[0].z = c->z;
bv[0].color = lakedifcolor;
bv[0].u = 0; bv[0].v = 0;
bv[1].x = c->x + 1;
bv[1].y = c->waterlev;
bv[1].z = c->z;
bv[1].color = lakedifcolor;
bv[1].u = 1; bv[1].v = 0;
bv[2].x = c->x + 1;
bv[2].y = c->waterlev;
bv[2].z = c->z + 1;
bv[2].color = lakedifcolor;
bv[2].u = 1; bv[2].v = 1;
bv[3].x = c->x;
bv[3].y = c->waterlev;
bv[3].z = c->z + 1;
bv[3].color = lakedifcolor;
bv[3].u = 0; bv[3].v = 1;
bi[0] = fi+0; bi[1] = fi+3; bi[2] = fi+1;
bi[3] = fi+1; bi[4] = fi+3; bi[5] = fi+2;
}
}
mapbatch->flush();
mapbatch->end();
}
void CreateMinimap(Bitmap &bhm, int bmpwh, bool drawedge)
{
bhm.w = bhm.h = bmpwh; bhm.form = BMFORMAT_R8G8B8;
bhm.pix = (uchar*)malloc(bmpwh*bmpwh*3); bhm.pal = 0;
memset(bhm.pix, 0, bmpwh*bmpwh*3);
int ltw = drawedge ? mapwidth : (mapwidth - 2*mapedge); int lvw = ltw + 1;
int lth = drawedge ? mapheight : (mapheight - 2*mapedge); int lvh = lth + 1;
int mmw, mmh;
if(ltw > lth) {mmw = bmpwh; mmh = lth * bmpwh / ltw;}
else {mmh = bmpwh; mmw = ltw * bmpwh / lth;}
int sx = bmpwh/2-mmw/2, sy = bmpwh/2-mmh/2;
int mmedge = drawedge ? 0 : mapedge;
for(int y = sy; y < sy+mmh; y++)
for(int x = sx; x < sx+mmw; x++)
{
int v = ((y-sy) * lvh / mmh + mmedge) * (mapwidth+1) + (x-sx) * lvw / mmw + mmedge;
int t = ((y-sy) * lth / mmh + mmedge) * mapwidth + (x-sx) * ltw / mmw + mmedge;
bhm.pix[3*(y*bmpwh+x)+0] = 0;
bhm.pix[3*(y*bmpwh+x)+1] = himap_byte[v] * 3 / 4 + 64;
bhm.pix[3*(y*bmpwh+x)+2] = maptiles[t].lake ? 255 /*bhm.pix[3*(y*bmpwh+x)+1]*/ : 0;
}
}
void SaveMapSNR(char *filename)
{
char tbuf[512];
char *fnwoext = strdup(filename);
char *ext = strrchr(fnwoext, '.');
if(ext) *ext = 0;
char *bs = strrchr(fnwoext, '\\'), *fs = strrchr(fnwoext, '/');
char *namewop;
if((bs) && (bs > fs)) namewop = bs + 1;
else if(fs) namewop = fs + 1;
else namewop = fnwoext;
FILE *fsnr = fopen(filename, "w"); if(!fsnr) ferr("Cannot open \"%s\" for writing scenario.", filename);
fprintf(fsnr, "SCENARIO_VERSION 4.00\n");
fprintf(fsnr, "SCENARIO_DIMENSIONS %u %u\n", mapwidth, mapheight);
fprintf(fsnr, "SCENARIO_EDGE_WIDTH %u\n", mapedge);
fprintf(fsnr, "SCENARIO_TEXTURE_DATABASE \"Maps\\Map_Textures\\All_Textures.dat\"\n");
fprintf(fsnr, "SCENARIO_TERRAIN \"Maps\\%s\\%s.trn\"\n", namewop, namewop);
fprintf(fsnr, "SCENARIO_HEIGHTMAP \"Maps\\%s\\%s_heightmap.pcx\"\n", namewop, namewop);
fprintf(fsnr, "SCENARIO_HEIGHT_SCALE_FACTOR %f\n", maphiscale);
fprintf(fsnr, "SCENARIO_SUN_COLOUR %u %u %u\n", (mapsuncolor>>16)&255, (mapsuncolor>>8)&255, mapsuncolor&255);
fprintf(fsnr, "SCENARIO_SUN_VECTOR %f %f %f\n", mapsunvector.x, mapsunvector.y, mapsunvector.z);
fprintf(fsnr, "SCENARIO_FOG_COLOUR %u %u %u\n", (mapfogcolor>>16)&255, (mapfogcolor>>8)&255, mapfogcolor&255);
fprintf(fsnr, "SCENARIO_SKY_TEXTURES_DIRECTORY \"%s\"\n", mapskytexdir);
fprintf(fsnr, "SCENARIO_MINIMAP \"Maps\\%s\\%s_minimap.pcx\"\n", namewop, namewop);
for(DynListEntry<Vector3> *e = maplakes.first; e; e = e->next)
{
Vector3 *l = &e->value;
fprintf(fsnr, "SCENARIO_LAKE %f %f %f 0.0000\n", l->x, l->y, l->z);
}
fclose(fsnr);
sprintf(tbuf, "%s.trn", fnwoext);
FILE *ftrn = fopen(tbuf, "w"); if(!ftrn) ferr("Cannot open \"%s\" for writing terrain.", tbuf);
for(int i = 0; i < mapwidth*mapheight; i++)
{
MapTile *t = &(maptiles[i]);
fprintf(ftrn, "X\t%u\tZ\t%u\tGROUP\t\"%s\"\tID\t%i\tROTATION\t%u\tXFLIP\t%u\tZFLIP\t%u\n",
t->x + 1, mapheight - t->z, t->mt->grp->name, t->mt->id, t->rot, t->xflip, t->zflip);
}
fclose(ftrn);
Bitmap bhm;
bhm.w = mapwidth + 1; bhm.h = mapheight + 1; bhm.form = BMFORMAT_P8;
bhm.pix = himap_byte;
bhm.pal = (uchar*)malloc(768);
for(int i = 0; i < 256; i++)
for(int j = 0; j < 3; j++)
bhm.pal[i*3+j] = i;
sprintf(tbuf, "%s_heightmap.pcx", fnwoext);
SaveBitmapPCX(&bhm, tbuf);
free(bhm.pal);
CreateMinimap(bhm);
sprintf(tbuf, "%s_minimap.pcx", fnwoext);
SaveBitmapPCX(&bhm, tbuf);
free(bhm.pix);
free(fnwoext);
}
void CreateEmptyMap(int w, int h)
{
if(himap) CloseMap();
lastmap[0] = 0;
if(usemaptexdb) LoadMapTextures();
mapwidth = w; mapheight = h;
mapnverts = (mapwidth+1)*(mapheight+1);
mapedge = 0;
mapfogcolor = 0x9FC5E6;
maphiscale = 0.25f;
mapsuncolor = 0xFFFFFF; mapsunvector = Vector3(1,1,1);
strcpy(mapskytexdir, "Maps\\Sky Textures\\Bright Cloudy Blue Sky\\");
himap = (float*)malloc(mapnverts*sizeof(float));
himap_byte = (uchar*)malloc(mapnverts);
if(!(himap && himap_byte)) ferr("No mem. left for heightmap.");
memset(himap, 0, mapnverts*sizeof(float));
memset(himap_byte, 0, mapnverts);
if(usemaptexdb)
{
maptiles = new MapTile[mapwidth*mapheight];
MapTile *t = maptiles;
MapTexture *mtx = maptexgroup.getpnt(0)->tex->getpnt(0);
for(int z = 0; z < mapheight; z++)
for(int x = 0; x < mapwidth; x++)
{
t->mt = mtx;
t->rot = 0; t->xflip = 0; t->zflip = 0;
t->x = x; t->z = z;
t++;
}
}
InitMapParts();
FloodfillWater();
}
int bwcurbyte = 0; int bwnextbit = 0;
FILE *bwfile;
void writebit(bool b)
{
if(b) bwcurbyte |= 1 << bwnextbit;
bwnextbit++;
if(bwnextbit == 8)
{
fputc(bwcurbyte, bwfile);
bwcurbyte = 0;
bwnextbit = 0;
}
}
void writenb(int nb, int a)
{
for(int i = 0; i < nb; i++)
writebit(a & (1 << i));
}
void writefloat(float a) {writenb(32, *(int*)&a);}
void awrite8(FILE *f, uchar c) {fwrite(&c, 1, 1, f);}
void awrite16(FILE *f, ushort c) {fwrite(&c, 2, 1, f);}
void awrite32(FILE *f, uint c) {fwrite(&c, 4, 1, f);}
void awritefloat(FILE *f, float c) {fwrite(&c, 4, 1, f);}
void awritestr(FILE *f, char *s)
{
int l = strlen(s);
awrite16(f, l*2 + 2);
for(int i = 0; i <= l; i++)
awrite16(f, s[i]);
}
void SaveMapBCM(char *filename)
{
FILE *bcm = fopen(filename, "wb"); if(!bcm) ferr("Could not open \"%s\" for writing BCM.", filename);
fputs("TEQUILA", bcm); fputc(0, bcm); // To consume with moderation.
awrite32(bcm, 0x3F000000);
awrite32(bcm, mapwidth); awrite32(bcm, mapheight); awrite32(bcm, mapedge);
awritestr(bcm, "Maps\\Map_Textures\\All_Textures.dat");
awritefloat(bcm, maphiscale);
for(int i = 2; i >= 0; i--) awrite32(bcm, (mapsuncolor >> (i*8)) & 255);
awritefloat(bcm, mapsunvector.x); awritefloat(bcm, mapsunvector.y); awritefloat(bcm, mapsunvector.z);
for(int i = 2; i >= 0; i--) awrite32(bcm, (mapfogcolor >> (i*8)) & 255);
awritestr(bcm, mapskytexdir);
// Minimap
Bitmap b;
CreateMinimap(b);
fwrite(b.pix, 128*128*3, 1, bcm);
free(b.pix);
bwcurbyte = 0; bwnextbit = 0; bwfile = bcm;
// Lakes
if (maplakes.len >= 64)
MessageBox(hWindow, "The terrain has 64 or more lakes, but the BCM format only supports up to 63 lakes.\nOnly the first 63 lakes will be kept and saved.", appName, 48);
writenb(6, (maplakes.len >= 63) ? 63 : maplakes.len);
int nlkw = 0;
for(DynListEntry<Vector3> *e = maplakes.first; e; e = e->next)
{
writefloat(e->value.x); writefloat(e->value.y); writefloat(e->value.z);
writenb(2, 0);
if (++nlkw >= 63) break;
}
// Make a list of used groups, IDs, and textures.
GrowList<MapTextureGroup*> usedmtg;
GrowList<int> usedids;
GrowList<MapTexture*> usedtex;
for(int i = 0; i < mapwidth*mapheight; i++)
{
MapTile *t = &(maptiles[i]);
if(!usedmtg.has(t->mt->grp))
usedmtg.add(t->mt->grp);
if(!usedids.has(t->mt->id))
usedids.add(t->mt->id);
if(!usedtex.has(t->mt))
usedtex.add(t->mt);
}
// List of used texture groups
writenb(16, usedmtg.len);
for(int i = 0; i < usedmtg.len; i++)
{
MapTextureGroup *g = usedmtg[i];
int l = strlen(g->name);
writenb(8, l);
for(int i = 0; i < l; i++)
writenb(8, g->name[i]);
}
// List of used texture IDs
writenb(16, usedids.len);
for(int i = 0; i < usedids.len; i++)
writenb(32, usedids[i]);
// Determine the number of bits required for texture groups and IDs
int ngrpbits = GetMaxBits(usedmtg.len);
int nidbits = GetMaxBits(usedids.len);
// Tiles
MapTile *t = maptiles;
for(int z = 0; z < mapheight; z++)
for(int x = 0; x < mapwidth; x++)
{
writenb(ngrpbits, usedmtg.find(t->mt->grp));
writenb(nidbits, usedids.find(t->mt->id));
writenb(2, t->rot);
writenb(1, t->xflip);
writenb(1, t->zflip);
t++;
}
// Sort the used textures by group
GrowList<MapTexture*> sortedtex;
for(int i = 0; i < usedmtg.len; i++)
{
MapTextureGroup *g = usedmtg[i];
for(int j = 0; j < usedtex.len; j++)
{
MapTexture *t = usedtex[j];
if(t->grp == g)
sortedtex.add(t);
}
}
assert(usedtex.len == sortedtex.len);