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hyperrogue/rogueviz/nilrider/level.cpp
Zeno Rogue e3c8a4c5bf nilrider:: fixed texturing in stepped
2022-05-06 19:54:55 +02:00

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namespace nilrider {
const int steps_per_block = 16;
const int texture_density = 64;
void level::init_textures() {
int tY = isize(map_tiles);
int tX = isize(map_tiles[0]);
for(int stepped: {0, 1}) {
auto& target = stepped ? unil_texture_stepped : unil_texture;
target = new texture::texture_data;
auto& tex = *target;
tex.twidth = tex.tx = tX * texture_density;
tex.theight = tex.ty = tY * texture_density;
tex.stretched = false;
tex.strx = tex.tx;
tex.stry = tex.ty;
tex.base_x = 0;
tex.base_y = 0;
tex.whitetexture();
auto getpix = [&] (int x, int y) {
int px = x / pixel_per_block;
int py = y / pixel_per_block;
if(px < 0 || py < 0 || px >= tX || py >= tY) return '!';
char bmch = map_tiles[py][px];
if(bmch == '!') return '!';
return submaps[bmch][y % pixel_per_block][x % pixel_per_block];
};
int subpixels = texture_density / pixel_per_block;
int stepdiv = texture_density / steps_per_block;
for(int y=0; y<tex.ty; y++)
for(int x=0; x<tex.tx; x++) {
color_t col;
if(!stepped) {
char c = getpix(x / subpixels, y / subpixels);
col = bcols[c];
}
else {
int mx = x % stepdiv;
int my = y % stepdiv;
int mx0, mx1, my0, my1;
if(mx < stepdiv/2) { mx0 = mx1 = 2*mx; } else {mx0 = stepdiv-2; mx1=stepdiv; }
if(my < stepdiv/2) { my0 = my1 = 2*my; } else {my0 = stepdiv-2; my1=stepdiv; }
int ax = (x/stepdiv) * stepdiv;
int ay = (y/stepdiv) * stepdiv;
ld maxh = -HUGE_VAL;
char c = '!';
for(int i=0; i<4; i++) {
hyperpoint h = mappt(ax + ((mx0 != mx1) ? (i&1?3:1)*stepdiv/2 : mx0), ay + ((my0 != my1) ? (i&2?3:1)*stepdiv/2 : my0), texture_density);
if(h[2] > maxh) {
c = getpix(((i&1?mx1:mx0) + ax) / subpixels, ((i&2?my1:my0)+ ay) / subpixels);
if(c != '!') maxh = h[2];
}
}
col = bcols[c];
if(mx0 != mx1) col = gradient(col, 0xFF000000, 0, .1, 1);
if(my0 != my1) col = gradient(col, 0xFF000000, 0, .2, 1);
}
tex.get_texture_pixel(x, y) = col;
tex.get_texture_pixel(x, y) |= 0xFF000000;
tex.get_texture_pixel(x, y) ^= hrand(0x1000000) & 0xF0F0F;
}
tex.loadTextureGL();
}
}
void level::init() {
if(initialized) return;
initialized = true;
real_minx = HUGE_VAL;
real_miny = HUGE_VAL;
real_maxx = -HUGE_VAL;
real_maxy = -HUGE_VAL;
if(flags & nrlPolar)
scale = 1;
else
scale = abs(maxx - minx) / isize(map_tiles[0]);
println(hlog, "SCALE IS ", this->scale);
init_textures();
int tY = isize(map_tiles);
int tX = isize(map_tiles[0]);
start.where = mappt(startx+.5, starty+.5, 1);
start.t = 0;
current = start;
println(hlog, "start.where = ", start.where);
println(hlog, "current.where = ", current.where, " : ", format("%p", &current));
/* start facing slightly to the right from the slope */
for(auto b: {true, false}) while(true) {
auto c = start;
if(c.tick(this) == b) break;
start.heading_angle -= 1 * degree;
}
for(int s=0; s<3; s++) {
cgi.bshape(s == 0 ? shFloor : s == 1 ? shPlanFloor : shStepFloor, PPR::WALL);
shFloor.flags |= POLY_TRIANGLES;
shPlanFloor.flags |= POLY_TRIANGLES;
shStepFloor.flags |= POLY_TRIANGLES;
int prec = 16;
if(s == 2) prec *= 4;
int cdiv = prec / steps_per_block;
auto pt = [&] (int x, int y, int qx, int qy) {
if(s == 0) uniltinf.tvertices.push_back(glhr::makevertex(x * 1. / tX / prec, y * 1. / tY / prec, 0));
if(s == 2) {
ld ax = x, ay = y;
if(qx) {
if(x % cdiv == cdiv/2+1) qx = 0;
}
else {
ax -= (x % cdiv);
ax += .5;
ax += (x % cdiv) * (cdiv/2-1.) / (cdiv/2);
}
if(qy) {
if(y % cdiv == cdiv/2+1) qy = 0;
}
else {
ay -= (y % cdiv);
ay += .5;
ay += (y % cdiv) * (cdiv/2-1.) / (cdiv/2);
}
uniltinf_stepped.tvertices.push_back(glhr::makevertex((ax+qx) / tX / prec, (ay+qy) / tY / prec, 0));
}
hyperpoint h = mappt(x, y, prec);
if(s == 2) {
if(x % cdiv == cdiv/2+1) x += cdiv/2 - 1;
if(y % cdiv == cdiv/2+1) y += cdiv/2 - 1;
int gx = x/cdiv*cdiv + (x%cdiv) * 2;
int gy = y/cdiv*cdiv + (y%cdiv) * 2;
hyperpoint gh = mappt(gx, gy, prec);
int ax = x/cdiv*cdiv + cdiv/2;
int ay = y/cdiv*cdiv + cdiv/2;
hyperpoint ah = mappt(ax, ay, prec);
gh[0] = gh[0] - ah[0];
gh[1] = gh[1] - ah[1];
gh[2] = 0;
gh = sym_to_heis(gh);
h = rgpushxto0(ah) * gh;
ld delta = 0;
// make sure steps are below the actual level
for(int z=0; z<4; z++) {
int zx = x/cdiv*cdiv + ((z&1)?cdiv:0);
int zy = y/cdiv*cdiv + ((z&2)?cdiv:0);
hyperpoint zh = mappt(zx, zy, prec);
hyperpoint uh;
uh[0] = zh[0] - ah[0];
uh[1] = zh[1] - ah[1];
uh[2] = 0; uh[3] = 1;
uh = sym_to_heis(uh);
uh = rgpushxto0(ah) * uh;
delta = max(delta, uh[2] - zh[2]);
}
h[2] -= delta;
}
real_minx = min(real_minx, h[0]);
real_maxx = max(real_maxx, h[0]);
real_miny = min(real_miny, h[1]);
real_maxy = max(real_maxy, h[1]);
if(s == 1) h[2] = h[3] = 1;
cgi.hpcpush(h);
};
for(int y=0; y<tY * prec; y++)
for(int x=0; x<tX * prec; x++) {
char bmch = map_tiles[y/prec][x/prec];
if(bmch == '!') continue;
int qx = 0, qy = 0;
if(s == 2) {
if(x % cdiv == (cdiv/2)) qx++;
if(x % cdiv > (cdiv/2)) qx+=2;
if(y % cdiv == (cdiv/2)) qy++;
if(y % cdiv > (cdiv/2)) qy+=2;
if(qx + qy > 1) continue;
}
pt(x, y, qx, qy);
pt(x, y+1, qx, qy);
pt(x+1, y, qx, qy);
pt(x+1, y+1, qx, qy);
pt(x+1, y, qx, qy);
pt(x, y+1, qx, qy);
}
cgi.finishshape();
}
if(1) {
cgi.bshape(shField, PPR::WALL);
shField.flags |= POLY_TRIANGLES;
auto pt = [&] (hyperpoint p) {
hyperpoint h = mappt(p[0], p[1], 16);
h[2] += p[2];
cgi.hpcpush(h);
// cgi.hpcpush(hyperpoint(rand() % 10 - 5, rand() % 10 - 5, rand() % 10 - 5, 1));
};
for(int y=0; y<tY * 16; y++)
for(int x=0; x<tX * 16; x++) {
int bx = x / 16;
int by = y / 16;
char bmch = map_tiles[by][bx];
if(bmch == 'f' && (x&1) && (y&1)) {
for(int s=0; s<4; s++) {
hyperpoint st = point3(x+.1, y+.1, 0);
hyperpoint a = spin(90*degree*s) * point3(.1, .1, 0);
hyperpoint b = spin(90*degree*(s+1)) * point3(.1, .1, 0);
hyperpoint hi = point3(0, 0, 1);
for(int z=0; z<3; z++) {
ld z1 = (3-z) / 3.;
ld z2 = (2-z) / 3.;
pt(st + a * z1 + hi*z);
pt(st + b * z1 + hi*z);
pt(st + a * z2 + hi*(z+1));
pt(st + a * z2 + hi*(z+1));
pt(st + b * z1 + hi*z);
pt(st + b * z2 + hi*(z+1));
}
}
}
}
cgi.finishshape();
}
if(1) {
cgi.bshape(shCastle, PPR::WALL);
shCastle.flags |= POLY_TRIANGLES;
for(int y=0; y<tY; y++)
for(int x=0; x<tX; x++) {
char bmch = map_tiles[y][x];
if(bmch == 'r') {
for(int s=0; s<4; s++) {
hyperpoint ctr = mappt(x+.5, y+.5, 1);
ctr[2] += safe_alt(ctr) + .5 * scale;
ld need = safe_alt(ctr, -1) / scale / scale;
int max_y = need * 2 + 1;
hyperpoint a = spin(90*degree*s) * point3(1, 0, 0);
hyperpoint b = spin(90*degree*s) * point3(0, 1, 0);
auto pt = [&] (ld af, ld bf, ld yf) {
hyperpoint ha = a * af * scale; ha[3] = 1;
hyperpoint hb = b * bf * scale; hb[3] = 1;
hyperpoint res = rgpushxto0(ctr) * rgpushxto0(ha) * rgpushxto0(hb) * point31(0, 0, yf * scale * scale);
cgi.hpcpush(res);
};
auto ptf = [&] (ld af, ld bf, ld yf) {
pt(af, bf, yf);
castle_tinf.tvertices.push_back(glhr::makevertex(bf, yf*4, 0));
};
auto ptc = [&] (ld af, ld bf, ld yf, ld xt, ld yt) {
pt(af, bf, yf);
castle_tinf.tvertices.push_back(glhr::makevertex(xt, yt, 0));
};
for(int w=0; w<2; w++)
for(int as=0; as<8; as++)
for(int y=0; y<max_y; y++) {
ld xf = w ? .4 : .5;
ld y1 = -y/2.;
ld y2 = -(y+1)/2.;
ld asd = (as-4) / 8.;
ld asd1 = (as-3) / 8.;
auto oasd = asd / 4;
if(w) asd *= .8, asd1 *= .8, oasd *= .8 * .8;
ptf(xf, asd, y1 - oasd);
ptf(xf, asd1, y1 - oasd);
ptf(xf, asd, y2 - oasd);
ptf(xf, asd, y2 - oasd);
ptf(xf, asd1, y1 - oasd);
ptf(xf, asd1, y2 - oasd);
}
ld x1 = 1/32.;
ld x2 = 1/4. + x1;
ld y1 = 1/32.;
ld y2 = 1/8. + x1;
for(int as=0; as<8; as++) {
ld asd = (as-4) / 8.;
ld asd1 = (as-3) / 8.;
ld asdw = asd * .8;
ld asdw1 = asd1 * .8;
ld asd2 = (as-5) / 8.;
//ld asdw2 = asd2 * .8;
ld oasd = asd / 4;
ld oasdw = oasd * .8 * .8;
ld oasd2 = asd2 / 4;
ld oasdw2 = oasd2 * .8 * .8;
/* tops */
ptc(.5, asd, -oasd, x1, y1);
ptc(.5, asd1, - oasd, x1, y2);
ptc(.4, asdw, -oasdw, x2, y1);
ptc(.4, asdw, -oasdw, x2, y1);
ptc(.5, asd1, - oasd, x1, y2);
ptc(.4, asdw1, -oasdw, x2, y2);
/* sides */
ptc(.5, asd, -oasd, x1, y1);
ptc(.5, asd, -oasd2, x1, y2);
ptc(.4, asdw, -oasdw, x2, y1);
ptc(.4, asdw, -oasdw, x2, y1);
ptc(.5, asd, -oasd2, x1, y2);
ptc(.4, asdw, -oasdw2, x2, y2);
}
}
}
if(bmch == 'o') {
hyperpoint h = mappt(x+.5, y+.5, 1);
h[2] += safe_alt(h) + 1;
statues.emplace_back(statue{rgpushxto0(h), &shBall, 0xFFFFFFFF});
}
if(bmch == 'x') {
hyperpoint h = mappt(x+.5, y+.5, 1);
statues.emplace_back(statue{rgpushxto0(h), &shGeostatue, 0xFFFFFFFF});
}
if(bmch == '*') {
hyperpoint h = mappt(x+.5, y+.5, 1);
h[2] += safe_alt(h, .5, .85);
triangledata d;
d.where = h;
d.x = x;
d.y = y;
for(int i=0; i<7; i++)
d.colors[i] = gradient(0xFFD500FF, 0xFF, 0, i, 8);
d.colors[6] = d.colors[0];
triangles.emplace_back(d);
}
}
cgi.finishshape();
}
if(flags & nrlOrder) {
sort(triangles.begin(), triangles.end(), [this] (triangledata a, triangledata b) {
return atan2(spin(120*degree)*(a.where - start.where)) < atan2(spin(120*degree)*(b.where - start.where));
});
for(auto t: triangles) println(hlog, t.where);
}
cgi.extra_vertices();
init_plan();
}
xy_float level::get_xy_f(hyperpoint h) {
if(flags & nrlPolar) {
tie(h[0], h[1]) = make_pair(atan2(h[0], h[1]), hypot(h[0], h[1]));
ld bar = (minx + maxx) / 2;
while(h[0] < bar - M_PI) h[0] += 2 * M_PI;
while(h[0] > bar + M_PI) h[0] -= 2 * M_PI;
}
int tY = isize(map_tiles);
int tX = isize(map_tiles[0]);
ld rtx = ilerp(minx, maxx, h[0]) * tX;
ld rty = ilerp(miny, maxy, h[1]) * tY;
return {rtx, rty};
}
char level::mapchar(xy_int p) {
auto x = p.first;
auto y = p.second;
int tY = isize(map_tiles);
int tX = isize(map_tiles[0]);
if(x < 0 || y < 0 || x >= tX || y >= tY) return '!';
return map_tiles[y][x];
}
/* convert ASCII map coordinates to Heisenberg coordinates */
hyperpoint level::mappt(ld x, ld y, int s) {
int tY = isize(map_tiles);
int tX = isize(map_tiles[0]);
x /= s;
y /= s;
hyperpoint h;
h[0] = lerp(minx, maxx, x / tX);
h[1] = lerp(miny, maxy, y / tY);
if(flags & nrlPolar)
tie(h[0], h[1]) = make_pair(h[1] * sin(h[0]), h[1] * cos(h[0]));
h[2] = surface(h);
h[3] = 1;
return h;
};
void level::init_plan() {
plan.emplace_back(start.where, hpxy(cos(start.heading_angle + 90*degree) * 2, sin(start.heading_angle + 90*degree) * 2));
current = start;
timer = 0;
}
ld level::safe_alt(hyperpoint h, ld mul, ld mulx) {
ld maxv = 0;
for(int x: {-1, 0, 1})
for(int y: {-1, 0, 1}) {
hyperpoint c = sym_to_heis(point31(x*.5*scale*mulx, y*.5*scale*mulx, 0));
hyperpoint j = rgpushxto0(h) * c;
maxv = max(maxv, mul * (surface(j) - j[2]));
}
return maxv;
}
bool stepped_display;
void level::draw_level(const shiftmatrix& V) {
int id = 0;
for(auto& t: triangles) {
bool gotit = current.collected_triangles & Flag(id);
id++;
if(!gotit) {
for(int i=0; i<6; i++) {
auto &poly = queuepoly(V * rgpushxto0(t.where) * cpush(2, abs(0.2 * sin(timer * 5))), shMini[i], t.colors[i]);
poly.tinf = &floor_texture_vertices[cgi.shFloor.id];
ensure_vertex_number(*poly.tinf, poly.cnt);
}
}
}
if(true) {
auto& poly = queuepoly(V, shCastle, 0xC02020FF);
poly.tinf = &castle_tinf;
castle_tinf.texture_id = castle_texture->textureid;
}
for(auto st: statues) queuepoly(V * st.T, *st.shape, st.color);
queuepoly(V, shField, 0xFFFF00FF);
if(!stepped_display) {
auto& poly = queuepoly(V, shFloor, 0xFFFFFFFF); // 0xFFFFFFFF);
poly.tinf = &uniltinf;
uniltinf.texture_id = unil_texture->textureid;
}
else {
auto& poly = queuepoly(V, shStepFloor, 0xFFFFFFFF); // 0xFFFFFFFF);
poly.tinf = &uniltinf_stepped;
uniltinf_stepped.texture_id = unil_texture_stepped->textureid;
}
}
}
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