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hyperrogue/usershapes.cpp
2020-07-03 14:42:33 +02:00

113 lines
3.0 KiB
C++

// HyperRogue -- user-defined shapes
// Copyright (C) 2011-2019 Zeno Rogue, see 'hyper.cpp' for details
/** \file usershapes.cpp
* \brief user-defined shapes
*/
#include "hyper.h"
#if CAP_SHAPES
namespace hr {
EX int usershape_changes;
EX array<map<int, usershape*>, mapeditor::USERSHAPEGROUPS> usershapes;
EX void initShape(int sg, int id) {
if(!usershapes[sg][id]) {
usershape *us = new usershape;
usershapes[sg][id] = us;
for(int i=0; i<USERLAYERS; i++) {
us->d[i].prio = PPR((sg == 3 ? 1:50) + i);
us->d[i].rots = 1;
us->d[i].sym = 0;
us->d[i].shift = C0;
us->d[i].spin = Cx1;
us->d[i].color = 0;
us->d[i].zlevel = 0;
}
}
}
EX basic_textureinfo user_triangles_texture;
void geometry_information::pushShape(usershapelayer& ds) {
if(ds.list.empty()) return;
if(GDIM == 3) last->flags |= POLY_TRIANGLES;
transmatrix T = rgpushxto0(ds.shift) * rspintox(ds.spin);
int z = GDIM == 3 ? 3 : 1;
for(int r=0; r<ds.rots; r++) {
for(int i=0; i<isize(ds.list)/z*z; i++)
hpcpush(T * spin(2*M_PI*r/ds.rots) * ds.list[i]);
if(ds.sym) {
transmatrix mirrortrans = Id; mirrortrans[1][1] = -1;
for(int i=isize(ds.list)-1; i>=0; i--)
hpcpush(T * spin(2*M_PI*r/ds.rots) * mirrortrans * ds.list[i]);
}
}
if(GDIM == 2) hpcpush(T * ds.list[0]);
#if MAXMDIM >= 4 && CAP_GL
if(GDIM == 3) {
auto& utt = user_triangles_texture;
utt.texture_id = floor_textures->renderedTexture;
ds.texture_offset = isize(utt.tvertices);
for(int i=0; i<isize(ds.list)-2; i+=3) {
hyperpoint h = orthogonal_of_C0(ds.list[i], ds.list[i+1], ds.list[i+2]);
ld rad = hypot_d(3, h);
ld factor = 0.49 + (0.17 * h[2] + 0.13 * h[1] + 0.20 * h[0]) / rad;
for(int i=0; i<3; i++)
utt.tvertices.push_back(glhr::makevertex(-1, factor, 0));
}
}
#endif
}
void geometry_information::prepare_usershapes() {
hpc.resize(prehpc);
last = NULL;
DEBB(DF_POLY, ("hpc = ", prehpc));
user_triangles_texture.tvertices.clear();
for(int i=0; i<mapeditor::USERSHAPEGROUPS; i++) for(auto usp: usershapes[i]) {
auto us = usp.second;
if(!us) continue;
for(int l=0; l<USERLAYERS; l++) {
bshape(ushr[&us->d[l]], us->d[l].prio);
pushShape(us->d[l]);
finishshape();
}
}
static int qhpc0;
int qhpc = isize(hpc);
if(qhpc != qhpc0 && (debugflags & (DF_GEOM | DF_POLY))) {
println(hlog, "qhpc = ", qhpc0=qhpc, " (", prehpc, "+", qhpc-prehpc, ")");
println(hlog, "shapes = ", isize(allshapes));
int inve=0, issi=0, vcon=0, ccon=0;
for(auto sh: allshapes) {
if(sh->flags & POLY_INVERSE) inve++;
if(sh->flags & POLY_ISSIDE) issi++;
if(sh->flags & POLY_VCONVEX) vcon++;
if(sh->flags & POLY_CCONVEX) ccon++;
}
println(hlog, format("inverse = %d isside = %d vcon = %d ccon = %d", inve, issi, vcon, ccon));
}
initPolyForGL();
}
}
#endif