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rogueviz/balls: improvement

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This commit is contained in:
Zeno Rogue 2020-09-11 11:09:10 +02:00
parent 6d8cc0eadc
commit ec6068944f
1 changed files with 43 additions and 16 deletions
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59
rogueviz/balls.cpp
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@ -9,6 +9,10 @@
namespace rogueviz { namespace rogueviz {
namespace balls {
bool on = true;
struct ball { struct ball {
hyperpoint at; hyperpoint at;
hyperpoint vel; hyperpoint vel;
@ -21,10 +25,8 @@ ld r_big_ball = 1;
hpcshape shSmallBall, shBigBall, shShell; hpcshape shSmallBall, shBigBall, shShell;
bool init = false; void initialize(int max_ball) {
on = true;
void initialize() {
init = true;
cgi.make_ball(shSmallBall, r_small_ball, 2); cgi.make_ball(shSmallBall, r_small_ball, 2);
cgi.make_ball(shBigBall, r_big_ball, 4); cgi.make_ball(shBigBall, r_big_ball, 4);
@ -33,7 +35,7 @@ void initialize() {
shShell.flags |= POLY_TRIANGLES; shShell.flags |= POLY_TRIANGLES;
auto pt = [] (int i, int j) { auto pt = [] (int i, int j) {
cgi.hpcpush(direct_exp(cspin(0, 2, -30*degree) * cspin(0, 2, 90*degree) * cspin(0, 1, j * degree) * cspin(0, 2, i * M_PI / 2 / 16) * ztangent(r_big_ball))); cgi.hpcpush(direct_exp(/* cspin(0, 2, -30*degree) **/ cspin(2, 1, 90*degree) * cspin(0, 1, j * degree) * cspin(0, 2, i * M_PI / 2 / 16) * ztangent(r_big_ball)));
}; };
for(int i=0; i<16; i++) for(int i=0; i<16; i++)
@ -48,9 +50,9 @@ void initialize() {
cgi.finishshape(); cgi.finishshape();
cgi.extra_vertices(); cgi.extra_vertices();
for(int a=-3; a<=3; a++) for(int a=-max_ball; a<=max_ball; a++)
for(int b=-3; b<=3; b++) for(int b=-max_ball; b<=max_ball; b++)
for(int c=-3; c<=3; c++) for(int c=-max_ball; c<=max_ball; c++)
{ {
hyperpoint h = point3(0.21*a + 1e-2, 0.21*b, 0.21*c); hyperpoint h = point3(0.21*a + 1e-2, 0.21*b, 0.21*c);
@ -63,13 +65,13 @@ void initialize() {
} }
bool draw_balls(cell *c, const transmatrix& V) { bool draw_balls(cell *c, const shiftmatrix& V) {
if(!init) initialize(); if(!on) return false;
if(c == currentmap->gamestart()) { if(c == currentmap->gamestart()) {
for(auto& b: balls) for(auto& b: balls)
queuepoly(V * rgpushxto0(b.at), shSmallBall, 0xFFFFFFFF); queuepoly(V * rgpushxto0(b.at), shSmallBall, 0xFFFFFFFF);
queuepoly(Id, shShell, 0x0000F0FF); queuepoly(V, shShell, 0x0000F0FF);
} }
return false; return false;
@ -104,6 +106,7 @@ ld elastic_out = .2;
ld gravity = 1; ld gravity = 1;
bool turn(int delta) { bool turn(int delta) {
if(!on) return false;
for(int i=0; i<delta; i++) { for(int i=0; i<delta; i++) {
for(auto& b: balls) { for(auto& b: balls) {
/* gravity direction: z */ /* gravity direction: z */
@ -118,7 +121,7 @@ bool turn(int delta) {
b.vel -= b.at * e2; b.vel -= b.at * e2;
} }
hyperpoint v = inverse_exp(b.at); hyperpoint v = inverse_exp(shiftless(b.at));
ld d = hypot_d(3, v); ld d = hypot_d(3, v);
ld rbs = r_big_ball - r_small_ball; ld rbs = r_big_ball - r_small_ball;
if(d > rbs) { if(d > rbs) {
@ -142,12 +145,12 @@ bool turn(int delta) {
for(auto& b1: balls) for(auto& b1: balls)
for(auto& b2: balls) { for(auto& b2: balls) {
if(&b2 == &b1) break; if(&b2 == &b1) break;
hyperpoint dif = inverse_exp(gpushxto0(b1.at) * b2.at); hyperpoint dif = inverse_exp(shiftless(gpushxto0(b1.at) * b2.at));
ld d = hypot_d(3, dif); ld d = hypot_d(3, dif);
if(d < r_small_ball * 2) { if(d < r_small_ball * 2) {
hyperpoint ort1 = (dif / d); hyperpoint ort1 = (dif / d);
ld vel1 = +inner(gpushxto0(b1.at) * b1.vel, ort1); ld vel1 = +inner(gpushxto0(b1.at) * b1.vel, ort1);
hyperpoint ort2 = inverse_exp(gpushxto0(b2.at) * b1.at) / d; hyperpoint ort2 = inverse_exp(shiftless(gpushxto0(b2.at) * b1.at)) / d;
ld vel2 = +inner(gpushxto0(b2.at) * b2.vel, ort2); ld vel2 = +inner(gpushxto0(b2.at) * b2.vel, ort2);
ld vels = vel1 + vel2; ld vels = vel1 + vel2;
if(vels < 0) continue; if(vels < 0) continue;
@ -162,8 +165,32 @@ bool turn(int delta) {
return false; return false;
} }
auto celldemo = addHook(hooks_drawcell, 100, draw_balls) + int args() {
addHook(shmup::hooks_turn, 100, turn); using namespace arg;
if(0) ;
else if(argis("-ball-physics")) {
start_game();
check_cgi();
cgi.require_shapes();
shift();
initialize(argi());
View = cspin(1, 2, M_PI/2);
}
else return 1;
return 0;
}
auto celldemo = addHook(hooks_drawcell, 100, draw_balls) +
addHook(shmup::hooks_turn, 100, turn) +
addHook(hooks_args, 100, args) +
addHook(hooks_clearmemory, 40, [] () {
balls.clear();
on = false;
});
} }
}