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hyperrogue/sky.cpp

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9.7 KiB
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#include "hyper.h"
namespace hr {
#if MAXMDIM >= 4
EX ld camera_level;
EX int get_skybrightness(int mul IS(1)) {
ld s = 1 - mul * (camera_level - cgi.WALL) / -2;
if(s > 1) return 255;
if(s < 0) return 0;
return int(s * 255);
}
struct sky_item {
cell *c;
transmatrix T;
color_t color;
sky_item(cell *_c, const struct transmatrix _T, color_t _color) : c(_c), T(_T), color(_color) {}
};
struct dqi_sky : drawqueueitem {
vector<sky_item> sky;
void draw();
virtual color_t outline_group() { return 3; }
// singleton
dqi_sky() { hr::sky = this; }
~dqi_sky() { hr::sky = NULL; }
};
EX struct dqi_sky *sky;
EX void prepare_sky() {
sky = NULL;
if(euclid) {
if(WDIM == 3 || GDIM == 2) return;
transmatrix T = ggmatrix(currentmap->gamestart());
T = gpushxto0(tC0(T)) * T;
queuepoly(T, cgi.shEuclideanSky, 0x0044e4FF);
queuepolyat(T * zpush(cgi.SKY+0.5) * xpush(cgi.SKY+0.5), cgi.shSun, 0xFFFF00FF, PPR::SKY);
}
else {
sky = &queuea<dqi_sky> (PPR::SKY);
}
}
void dqi_sky::draw() {
if(!vid.usingGL || sky.empty()) return;
vector<glhr::colored_vertex> skyvertices;
int sk = get_skybrightness();
unordered_map<cell*, color_t> colors;
#ifdef USE_UNORDERED_MAP
colors.reserve(isize(sky));
#endif
for(sky_item& si: sky) colors[si.c] = darkena(gradient(0, si.color, 0, sk, 255), 0, 0xFF);
hyperpoint skypoint = cpush0(2, cgi.SKY);
vector<glhr::colored_vertex> this_poly;
// I am not sure why, but extra projection martix introduced in stereo
// causes some vertices to not be drawn. Thus we apply separately
transmatrix Tsh = Id;
if(global_projection)
Tsh = xpush(vid.ipd * global_projection/2);
for(sky_item& si: sky) {
auto c = si.c;
for(int i=0; i<c->type; i++) {
if(1) {
cellwalker cw0(c, i);
cellwalker cw = cw0;
do {
cw += wstep; cw++;
if(cw.at < c || !colors.count(si.c)) goto next;
}
while(cw != cw0);
this_poly.clear();
transmatrix T1 = Tsh * si.T;
do {
this_poly.emplace_back(T1 * skypoint, colors[cw.at]);
T1 = T1 * currentmap->adj(cw.at, cw.spin);
cw += wstep; cw++;
}
while(cw != cw0);
int k = isize(this_poly);
for(int j=2; j<k; j++) {
skyvertices.push_back(this_poly[0]);
skyvertices.push_back(this_poly[j-1]);
skyvertices.push_back(this_poly[j]);
}
}
next: ;
}
}
for(auto& v: skyvertices) for(int i=0; i<3; i++) v.color[i] *= 2;
for(int ed = current_display->stereo_active() ? -1 : 0; ed<2; ed+=2) {
if(global_projection && global_projection != ed) continue;
current_display->next_shader_flags = GF_VARCOLOR;
current_display->set_all(ed);
if(global_projection)
glhr::projection_multiply(glhr::tmtogl(xpush(-vid.ipd * global_projection/2)));
glapplymatrix(Id);
glhr::prepare(skyvertices);
glhr::set_fogbase(1.0 + 5 / sightranges[geometry]);
glhr::set_depthtest(model_needs_depth() && prio < PPR::SUPERLINE);
glhr::set_depthwrite(model_needs_depth() && prio != PPR::TRANSPARENT_SHADOW && prio != PPR::EUCLIDEAN_SKY);
glDrawArrays(GL_TRIANGLES, 0, isize(skyvertices));
}
}
color_t skycolor(cell *c) {
int cd = (euclid || stdhyperbolic) ? getCdata(c, 1) : 0;
int z = (cd * 5) & 127;
if(z >= 64) z = 127 - z;
if(c->land == laHell)
return z < 32 ? gradient(0x400000, 0xFF0000, 0, z, 32) : gradient(0xFF0000, 0xFFFF00, 32, z, 63);
else
return gradient(0x4040FF, 0xFFFFFF, 0, z, 63);
}
void celldrawer::draw_ceiling() {
if(pmodel != mdPerspective || sphere) return;
switch(ceiling_category(c)) {
/* ceilingless levels */
case 1: {
if(euclid) return;
if(fieldpattern::fieldval_uniq(c) % 3 == 0) {
queuepolyat(V * zpush(cgi.SKY+1), cgi.shNightStar, 0xFFFFFFFF, PPR::SKY);
}
if(sky) sky->sky.emplace_back(sky_item{c, V, 0x00000F});
if(c->land == laAsteroids) {
if(fieldpattern::fieldval_uniq(c) % 9 < 3) {
queuepolyat(V * zpush(-1-cgi.SKY), cgi.shNightStar, 0xFFFFFFFF, PPR::SKY);
}
int sk = get_skybrightness(-1);
auto sky = draw_shapevec(c, V * MirrorZ, cgi.shFullFloor.levels[SIDE_SKY], 0x000000FF + 0x100 * (sk/17), PPR::SKY);
if(sky) sky->tinf = NULL, sky->flags |= POLY_INTENSE;
}
return;
}
case 2: {
if(euclid) return;
color_t col;
switch(c->land) {
case laWineyard:
col = 0x4040FF;
if(emeraldval(c) / 4 == 11) {
queuepolyat(V * zpush(cgi.SKY+1), cgi.shSun, 0xFFFF00FF, PPR::SKY);
}
break;
case laPower:
col = c->landparam ? 0xFF2010 : 0x000020;
break;
case laDesert:
case laRedRock:
col = 0x4040FF;
break;
case laAlchemist:
col = fcol;
break;
case laVariant: {
int b = getBits(c);
col = 0x404040;
for(int a=0; a<21; a++)
if((b >> a) & 1)
col += variant::features[a].color_change;
col = col & 0x00FF00;
break;
}
case laDragon:
col = c->wall == waChasm ? 0xFFFFFF : 0x4040FF;
break;
default:
col = skycolor(c);
}
if(sky) sky->sky.emplace_back(c, V, col);
return;
}
case 3: {
if(sky) sky->sky.emplace_back(c, V, 0);
if(camera_level <= cgi.WALL) return;
if(c->land == laMercuryRiver) fcol = linf[laTerracotta].color, fd = 1;
if(qfi.fshape) draw_shapevec(c, V, qfi.fshape->levels[SIDE_WALL], darkena(fcol, fd, 0xFF), PPR::WALL);
forCellIdEx(c2, i, c)
if(ceiling_category(c2) != 3) {
color_t wcol2 = gradient(0, wcol, 0, .8, 1);
placeSidewall(c, i, SIDE_HIGH, V, darkena(wcol2, fd, 0xFF));
placeSidewall(c, i, SIDE_HIGH2, V, darkena(wcol2, fd, 0xFF));
placeSidewall(c, i, SIDE_SKY, V, darkena(wcol2, fd, 0xFF));
}
return;
}
case 4: {
if(sky) sky->sky.emplace_back(c, V, 0x00000F);
if(camera_level <= cgi.HIGH2) return;
auto ispal = [&] (cell *c0) { return c0->land == laPalace && among(c0->wall, waPalace, waClosedGate, waOpenGate); };
color_t wcol2 = 0xFFD500;
if(ispal(c)) {
forCellIdEx(c2, i, c) if(!ispal(c2))
placeSidewall(c, i, SIDE_HIGH, V, darkena(wcol2, fd, 0xFF));
}
else {
bool window = false;
forCellIdEx(c2, i, c) if(c2->wall == waPalace && ispal(c->cmodmove(i+1)) && ispal(c->cmodmove(i-1))) window = true;
if(qfi.fshape && !window) draw_shapevec(c, V, qfi.fshape->levels[SIDE_HIGH], darkena(fcol, fd, 0xFF), PPR::WALL);
if(window)
forCellIdEx(c2, i, c)
placeSidewall(c, i, SIDE_HIGH2, V, darkena(wcol2, fd, 0xFF));
}
if(among(c->wall, waClosedGate, waOpenGate) && qfi.fshape) draw_shapevec(c, V, qfi.fshape->levels[SIDE_WALL], 0x202020FF, PPR::WALL);
if(euclid) return;
if(true) {
queuepolyat(V * zpush(cgi.SKY+0.5), cgi.shNightStar, 0xFFFFFFFF, PPR::SKY);
}
break;
}
case 6: {
if(sky) sky->sky.emplace_back(c, V, skycolor(c));
if(camera_level <= cgi.HIGH2) return;
color_t wcol2 = winf[waRuinWall].color;
if(c->landparam == 1)
forCellIdEx(c2, i, c) if(c2->landparam != 1)
placeSidewall(c, i, SIDE_HIGH, V, darkena(wcol2, fd, 0xFF));
if(c->landparam != 2)
forCellIdEx(c2, i, c) if(c2->landparam == 2)
placeSidewall(c, i, SIDE_HIGH2, V, darkena(wcol2, fd, 0xFF));
if(c->landparam == 0)
if(qfi.fshape) draw_shapevec(c, V, qfi.fshape->levels[SIDE_HIGH], darkena(wcol2, fd, 0xFF), PPR::WALL);
if(c->landparam == 1)
if(qfi.fshape) draw_shapevec(c, V, qfi.fshape->levels[SIDE_WALL], darkena(wcol2, fd, 0xFF), PPR::WALL);
break;
}
case 7: {
if(sky) sky->sky.emplace_back(c, V, 0x00000F);
if(fieldpattern::fieldval_uniq(c) % 5 < 2) {
queuepolyat(V * zpush(cgi.SKY+1), cgi.shNightStar, 0xFFFFFFFF, PPR::SKY);
}
if(camera_level <= cgi.HIGH2) return;
color_t wcol2 = winf[waColumn].color;
if(c->landparam == 1)
forCellIdEx(c2, i, c) if(c2->landparam != 1)
placeSidewall(c, i, SIDE_HIGH, V, darkena(wcol2, fd, 0xFF));
if(c->landparam != 2)
forCellIdEx(c2, i, c) if(c2->landparam == 2)
placeSidewall(c, i, SIDE_HIGH2, V, darkena(wcol2, fd, 0xFF));
if(c->landparam == 0)
if(qfi.fshape) draw_shapevec(c, V, qfi.fshape->levels[SIDE_HIGH], darkena(wcol2, fd, 0xFF), PPR::WALL);
if(c->landparam == 1)
if(qfi.fshape) draw_shapevec(c, V, qfi.fshape->levels[SIDE_WALL], darkena(wcol2, fd, 0xFF), PPR::WALL);
break;
}
case 5: {
if(sky) sky->sky.emplace_back(c, V, 0x00000F);
if(camera_level <= cgi.WALL) return;
if(pseudohept(c)) {
forCellIdEx(c2, i, c)
placeSidewall(c, i, SIDE_HIGH, V, darkena(fcol, fd, 0xFF));
}
else if(qfi.fshape)
draw_shapevec(c, V, qfi.fshape->levels[SIDE_WALL], darkena(fcol, fd, 0xFF), PPR::WALL);
if(euclid) return;
if(true) {
queuepolyat(V * zpush(cgi.SKY+0.5), cgi.shNightStar, 0xFFFFFFFF, PPR::SKY);
}
}
}
}
#endif
}
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