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Code Issues Releases Wiki Activity

rogueviz::flocking:: added swarming (numerical precision visualization)

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Zeno Rogue
2021-04-23 20:58:49 +02:00
parent ada99f6a35
commit 7086c16c04
1 changed files with 66 additions and 10 deletions
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76
rogueviz/flocking.cpp
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@@ -50,7 +50,7 @@ namespace flocking {
int N;
bool draw_lines = false;
bool draw_lines = false, draw_tails = false;
int follow = 0;
string follow_names[3] = {"nothing", "specific boid", "center of mass"};
@@ -73,6 +73,8 @@ namespace flocking {
ld check_range = 2.5;
bool swarm;
char shape = 'b';
vector<tuple<shiftpoint, shiftpoint, color_t> > lines;
@@ -89,7 +91,7 @@ namespace flocking {
void simulate(int delta) {
int iter = 0;
while(delta > precision && iter < 100) {
while(delta > precision && iter < (swarm ? 10000 : 100)) {
simulate(precision); delta -= precision;
iter++;
}
@@ -109,8 +111,19 @@ namespace flocking {
}
lines.clear();
if(swarm) for(int i=0; i<N; i++) {
vertexdata& vd = vdata[i];
auto m = vd.m;
apply_parallel_transport(m->at, m->ori, xtangent(0.01)); // max_speed * d));
fixmatrix(m->at);
parallelize(N, [&monsat, &d, &vels, &pats, &oris] (int a, int b) { for(int i=a; i<b; i++) {
virtualRebase(m);
}
if(!swarm) parallelize(N, [&monsat, &d, &vels, &pats, &oris] (int a, int b) { for(int i=a; i<b; i++) {
vertexdata& vd = vdata[i];
auto m = vd.m;
@@ -223,7 +236,7 @@ namespace flocking {
} return 0; });
for(int i=0; i<N; i++) {
if(!swarm) for(int i=0; i<N; i++) {
vertexdata& vd = vdata[i];
auto m = vd.m;
// these two functions compute new base and at, based on pats[i]
@@ -310,7 +323,17 @@ namespace flocking {
if(0) ;
else if(argis("-flocking")) {
PHASEFROM(2);
shift(); N = argi();
shift(); N = argi(); swarm = false;
init();
}
else if(argis("-swarming")) {
PHASEFROM(2);
shift(); N = argi(); swarm = true;
init();
}
else if(argis("-flocktails")) {
PHASEFROM(2);
draw_tails = true;
init();
}
else if(argis("-cohf")) {
@@ -443,6 +466,8 @@ namespace flocking {
dialog::add_action(runGeometryExperiments);
dialog::addBoolItem_action("draw forces", draw_lines, 'l');
dialog::addBoolItem_action("draw tails", draw_tails, 't');
dialog::addSelItem("follow", follow_names[follow], 'f');
dialog::add_action([] () { follow++; follow %= 3; });
@@ -466,6 +491,17 @@ namespace flocking {
v.push_back(named_dialog("flocking", show));
}
bool drawVertex(const shiftmatrix &V, cell *c, shmup::monster *m) {
if(draw_tails) {
int i = m->pid;
vertexdata& vd = vdata[i];
vid.linewidth *= 3;
queueline(V * m->at * C0, V * m->at * xpush0(-3), vd.cp.color2 & 0xFFFFFFF3F, 6);
vid.linewidth /= 3;
}
return false;
}
void init() {
if(!bounded) {
addMessage("Flocking simulation needs a bounded space.");
@@ -476,6 +512,7 @@ namespace flocking {
rv_hook(shmup::hooks_turn, 100, turn);
rv_hook(hooks_frame, 100, flock_marker);
rv_hook(hooks_o_key, 80, o_key);
rv_hook(shmup::hooks_draw, 90, drawVertex);
vdata.resize(N);
@@ -496,20 +533,39 @@ namespace flocking {
}
}
}
ld angle;
if(swarm) angle = hrand(1000);
printf("setting up...\n");
for(int i=0; i<N; i++) {
vertexdata& vd = vdata[i];
// set initial base and at to random cell and random position there
createViz(i, v[hrand(isize(v))], Id);
createViz(i, v[swarm ? 0 : hrand(isize(v))], Id);
vd.m->pat.T = Id;
rotate_object(vd.m->pat.T, vd.m->ori, random_spin());
apply_parallel_transport(vd.m->pat.T, vd.m->ori, xtangent(hrandf() / 2));
rotate_object(vd.m->pat.T, vd.m->ori, random_spin());
if(swarm) {
rotate_object(vd.m->pat.T, vd.m->ori, spin(angle));
apply_parallel_transport(vd.m->pat.T, vd.m->ori, xtangent(i * -0.015));
}
else {
rotate_object(vd.m->pat.T, vd.m->ori, random_spin());
apply_parallel_transport(vd.m->pat.T, vd.m->ori, xtangent(hrandf() / 2));
rotate_object(vd.m->pat.T, vd.m->ori, random_spin());
}
vd.name = its(i+1);
vd.cp = dftcolor;
vd.cp.color2 = ((hrand(0x1000000) << 8) + 0xFF) | 0x808080FF;
if(swarm)
vd.cp.color2 =
(rainbow_color(0.5, i * 1. / N) << 8) | 0xFF;
else
vd.cp.color2 =
((hrand(0x1000000) << 8) + 0xFF) | 0x808080FF;
vd.cp.shade = shape;
vd.m->vel = ini_speed;
vd.m->at = vd.m->pat.T;