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#include "compat/debug.hpp"
#include "compat/shared-ptr-wrapper.hpp"
#include "compat/function2.hpp"
#include "src/critter.hpp"
#include "src/world.hpp"
#include "src/wall-atlas.hpp"
#include "src/nanosecond.inl"
#include "src/log.hpp"
#include "src/point.inl"
#include "loader/loader.hpp"
#include <cinttypes>
#include <cstdio>
#include <benchmark/benchmark.h>
namespace floormat {
namespace {
using enum rotation;
using fu2::function_view;
using Function = function_view<Ns() const>;
#ifndef __CLION_IDE__
constexpr auto constantly(const auto& x) noexcept {
return [x]<typename... Ts> (const Ts&...) constexpr -> const auto& { return x; };
}
#else
constexpr auto constantly(Ns x) noexcept { return [x] { return x; }; }
#endif
critter_proto make_proto(float accel)
{
critter_proto proto;
proto.atlas = loader.anim_atlas("npc-walk", loader.ANIM_PATH);
proto.name = "Player"_s;
proto.speed = accel;
proto.playable = true;
proto.offset = {};
proto.bbox_offset = {};
proto.bbox_size = Vector2ub(tile_size_xy/2);
return proto;
}
void mark_all_modified(world& w)
{
for (auto& [coord, ch] : w.chunks())
ch.mark_modified();
}
struct Start
{
StringView name, instance;
point pt;
double accel = 1;
enum rotation rotation = N;
#if 1
static constexpr bool quiet = true, verbose = false, silent = true;
#elif 1
bool quiet = !is_log_verbose();
bool verbose = false;
#elif 0
bool verbose = true;
bool quiet = false;
#elif 1
bool verbose = false;
bool quiet = false;
#elif 0
bool quiet = is_log_quiet();
bool verbose = is_log_standard() || is_log_verbose();
#else
bool quiet = is_log_quiet() || is_log_standard();
bool verbose = is_log_verbose();
#endif
};
struct Expected
{
point pt;
Ns time;
};
struct Grace
{
Ns time = Ns{250};
uint32_t distance_L2 = 24;
static constexpr bool no_crash = true;
};
bool run(world& w, const function_view<Ns() const>& make_dt,
Start start, Expected expected, Grace grace = {})
{
constexpr auto max_time = 300*Second;
constexpr uint32_t max_steps = 800;
fm_assert(grace.time != Ns{});
fm_assert(!start.quiet | !start.verbose);
//validate_start(start);
//validate_expected(expected);
//validate_grace(grace);
fm_assert(start.accel > 1e-8);
fm_assert(start.accel <= 50);
fm_assert(start.name);
fm_assert(start.instance);
fm_assert(start.rotation < rotation_COUNT);
expected.time.stamp = uint64_t(expected.time.stamp / start.accel);
fm_assert(expected.time <= max_time);
fm_assert(grace.distance_L2 <= (uint32_t)Vector2((iTILE_SIZE2 * TILE_MAX_DIM)).length());
mark_all_modified(w);
object_id id = 0;
auto npc_ = w.ensure_player_character(id, make_proto((float)start.accel)).ptr;
auto& npc = *npc_;
auto index = npc.index();
npc.teleport_to(index, start.pt, rotation_COUNT);
Ns time{0}, saved_time{0};
auto last_pos = npc.position();
uint32_t i;
constexpr auto max_stop_frames = 250; // todo detect collisions properly and don't rely on this
uint32_t frames_stopped = 0;
if (!start.quiet) [[unlikely]]
Debug{} << "**" << start.name << start.instance << colon();
constexpr auto print_pos = [](StringView prefix, point start, point pos, Ns time, Ns dt, const critter& npc) {
DBG_nospace << prefix
<< " " << pos
<< " time:" << time
<< " dt:" << dt
<< " dist:" << point::distance_l2(pos, start)
<< " delta:" << npc.delta
<< " frac:" << npc.offset_frac;
};
auto fail = [b = grace.no_crash](const char* file, int line) {
if (b) [[likely]]
return false;
else
fm_emit_assert_fail("false", file, line);
};
for (i = 0; true; i++)
{
const auto dt = Ns{make_dt()};
if (dt == Ns{}) [[unlikely]]
{
if (start.verbose) [[unlikely]]
Debug{} << "| dt == 0, breaking";
break;
}
if (start.verbose) [[unlikely]]
print_pos(" ", expected.pt, npc.position(), time, dt, npc);
fm_assert(dt >= Millisecond*1e-1);
fm_assert(dt <= Second * 1000);
npc.update_movement(index, dt, start.rotation);
const auto pos = npc.position();
const bool same_pos = pos == last_pos;
last_pos = pos;
time += dt;
if (same_pos)
{
frames_stopped++;
if (frames_stopped >= max_stop_frames) [[unlikely]]
{
if (!start.quiet) [[unlikely]]
{
print_pos("->", expected.pt, pos, time, dt, npc);
DBG_nospace << "===>"
<< " iters,"
<< " time:" << time
<< " distance:" << point::distance_l2(last_pos, expected.pt) << " px"
<< Debug::newline;
}
break;
}
}
else
{
frames_stopped = 0;
saved_time = time;
}
if (time > max_time) [[unlikely]]
{
if (!start.quiet) [[unlikely]]
print_pos("*", start.pt, last_pos, time, dt, npc);
Error{standard_error()} << "!!! fatal: timeout" << max_time << "reached!";
return fail(__FILE__, __LINE__);
}
if (i > max_steps) [[unlikely]]
{
if (!start.quiet) [[unlikely]]
print_pos("*", start.pt, last_pos, time, dt, npc);
if (!start.silent)
Error{ standard_error()} << "!!! fatal: position doesn't converge after" << i << "iterations!";
return fail(__FILE__, __LINE__);
}
}
if (const auto dist_l2 = point::distance_l2(last_pos, expected.pt);
dist_l2 > grace.distance_L2) [[unlikely]]
{
Error{standard_error()} << "!!! fatal: distance" << dist_l2 << "pixels" << "over grace distance of" << grace.distance_L2;
return fail(__FILE__, __LINE__);
}
else if (start.verbose) [[unlikely]]
Debug{} << "*" << "distance:" << dist_l2 << "pixels";
if (expected.time != Ns{}) [[likely]]
{
const auto time_diff = Ns{Math::abs((int64_t)expected.time.stamp - (int64_t)saved_time.stamp)};
if (time_diff > grace.time)
{
Error{ standard_error(), Debug::Flag::NoSpace }
<< "!!! fatal: wrong time " << saved_time
<< " expected:" << expected.time
<< " diff:" << time_diff
<< " for " << start.name << "/" << start.instance;
return fail(__FILE__, __LINE__);
}
}
return true;
}
void test1(StringView instance_name, const Function& make_dt, double accel)
{
const auto W = wall_image_proto{ loader.wall_atlas("empty"), 0 };
auto w = world();
w[{{0,0,0}, {8,9}}].t.wall_north() = W;
w[{{0,1,0}, {8,0}}].t.wall_north() = W;
bool ret = run(w, make_dt,
Start{
.name = "test1"_s,
.instance = instance_name,
.pt = {{0,0,0}, {8,15}, {-8, 8}},
.accel = accel,
.rotation = N,
},
Expected{
.pt = {{0,0,0}, {8, 9}, {-6,-15}}, // distance_L2 == 3
.time = 6950*Millisecond,
},
Grace{
.time = 300*Millisecond,
});
//fm_assert(ret);
(void)ret;
}
void test2(StringView instance_name, const Function& make_dt, double accel)
{
const auto W = wall_image_proto{ loader.wall_atlas("empty"), 0 };
auto w = world();
w[{{-1,-1,0}, {13,13}}].t.wall_north() = W;
w[{{-1,-1,0}, {13,13}}].t.wall_west() = W;
w[{{1,1,0}, {4,5}}].t.wall_north() = W;
w[{{1,1,0}, {5,4}}].t.wall_west() = W;
bool ret = run(w, make_dt,
Start{
.name = "test2"_s,
.instance = instance_name,
.pt = {{-1,-1,0}, {13,14}, {-15,-29}},
.accel = accel,
.rotation = SE,
},
Expected{
.pt = {{1,1,0}, {4, 4}, {8,8}},
.time = 35'100*Millisecond,
},
Grace{
.time = 500*Millisecond,
.distance_L2 = 8,
});
//fm_assert(ret);
(void)ret;
}
void test_critter()
{
test1("dt=16.667 accel=1", constantly(Millisecond * 16.667), 1);
test1("dt=16.667 accel=2", constantly(Millisecond * 16.667), 2);
test1("dt=16.667 accel=5", constantly(Millisecond * 16.667), 5);
test1("dt=16.667 accel=0.5", constantly(Millisecond * 16.667), 0.5);
test1("dt=33.334 accel=1", constantly(Millisecond * 33.334), 1);
test1("dt=33.334 accel=2", constantly(Millisecond * 33.334), 2);
test1("dt=33.334 accel=5", constantly(Millisecond * 33.334), 5);
test1("dt=33.334 accel=10", constantly(Millisecond * 33.334), 10);
test1("dt=50.000 accel=1", constantly(Millisecond * 50.000), 1);
test1("dt=50.000 accel=2", constantly(Millisecond * 50.000), 2);
test1("dt=50.000 accel=5", constantly(Millisecond * 50.000), 5);
test1("dt=100.00 accel=1", constantly(Millisecond * 100.00), 1);
test1("dt=100.00 accel=2", constantly(Millisecond * 100.00), 2);
test1("dt=100.00 accel=0.5", constantly(Millisecond * 100.00), 0.5);
test1("dt=200.00 accel=1", constantly(Millisecond * 200.00), 1);
test1("dt=1.0000 accel=1", constantly(Millisecond * 1.0000), 1);
test1("dt=1.0000 accel=0.5", constantly(Millisecond * 1.0000), 0.5);
test2("dt=16.667 accel=1", constantly(Millisecond * 16.667), 1);
test2("dt=16.667 accel=2", constantly(Millisecond * 16.667), 2);
test2("dt=16.667 accel=5", constantly(Millisecond * 16.667), 5);
test2("dt=16.667 accel=0.5", constantly(Millisecond * 16.667), 0.5);
test2("dt=33.334 accel=1", constantly(Millisecond * 33.334), 1);
test2("dt=33.334 accel=2", constantly(Millisecond * 33.334), 2);
test2("dt=33.334 accel=5", constantly(Millisecond * 33.334), 5);
test2("dt=33.334 accel=10", constantly(Millisecond * 33.334), 10);
test2("dt=50.000 accel=1", constantly(Millisecond * 50.000), 1);
test2("dt=50.000 accel=2", constantly(Millisecond * 50.000), 2);
test2("dt=50.000 accel=5", constantly(Millisecond * 50.000), 5);
test2("dt=100.00 accel=1", constantly(Millisecond * 100.00), 1);
test2("dt=100.00 accel=2", constantly(Millisecond * 100.00), 2);
test2("dt=100.00 accel=0.5", constantly(Millisecond * 100.00), 0.5);
test2("dt=200.00 accel=1", constantly(Millisecond * 200.00), 1);
test2("dt=1.0000 accel=1", constantly(Millisecond * 1.0000), 1);
test2("dt=1.0000 accel=0.5", constantly(Millisecond * 1.0000), 0.5);
}
void Critter_move(benchmark::State& st)
{
for (int i = 0; i < 3; i++)
test_critter();
for (auto _ : st)
test_critter();
}
BENCHMARK(Critter_move)->Unit(benchmark::kMicrosecond);
} // namespace
} // namespace floormat
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