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Commit 593e9372 authored by Kevin Balz's avatar Kevin Balz
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Merge branch 'feature/8-beat-detection' into 'develop' 

Resolve "Beat-Detection"

Closes #8

See merge request !14
parents 8d29140a 0bee058f
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assets/game_assets/music/pulse.txt 0 → 100644
View file @ 593e9372
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src/gameplay/beat_system.cpp
View file @ 593e9372
......@@ -8,8 +8,6 @@
namespace phase_shifter::gameplay {
namespace {
constexpr auto beat_time = 1.f;
auto smootherstep(float edge0, float edge1, float x)
{
x = std::clamp((x - edge0) / (edge1 - edge0), 0.0f, 1.0f);
......@@ -17,23 +15,40 @@ namespace phase_shifter::gameplay {
}
} // namespace
Beat_system::Beat_system(mirrage::util::Message_bus& bus) : _bus(bus) {}
Beat_system::Beat_system(mirrage::util::Message_bus& bus, mirrage::asset::Asset_manager& assets)
: _bus(bus), _assets(assets)
{
auto input = _assets.open(mirrage::asset::AID("beat:pulse")).get_or_throw();
std::string line;
int i = 0;
while(std::getline(input, line)) {
_time_stamps.push_back(static_cast<float>(atof(line.substr(1, line.length() - 4).c_str())));
i++;
}
_state.avg_beat_time = static_cast<float>(_time_stamps[_time_stamps.size() - 1]) / _time_stamps.size();
}
void Beat_system::update(mirrage::util::Time dt)
{
_acc += dt.value();
auto beat = _acc >= beat_time;
int size = static_cast<int>(_time_stamps.size());
auto beat = _beat_index + 1 < size && _acc >= _time_stamps[_beat_index + 1];
if(beat) {
_state.beats_left--;
_beat_index++;
LOG(plog::debug) << "beat";
_acc = 0;
if(_state.beats_left == 0) {
if(_beat_index + 1 >= size) {
_bus.send<Lose_msg>();
}
}
_state = {beat, _acc, beat_time - _acc, beat_time, _state.beats_left};
_state = {beat,
_beat_index >= 0 ? _acc - _time_stamps[_beat_index] : _acc,
_beat_index + 1 < size ? _time_stamps[_beat_index + 1] - _acc : 999,
_state.avg_beat_time,
size - 1 - _beat_index
};
}
auto Beat_system::graphic_time_scale() const -> float
......@@ -61,4 +76,12 @@ namespace phase_shifter::gameplay {
}
}
const std::vector<float>& Beat_system::time_stamps() const {
return _time_stamps;
}
int Beat_system::beat_index() const {
return _beat_index;
}
} // namespace phase_shifter::gameplay
src/gameplay/beat_system.hpp
View file @ 593e9372
......@@ -2,6 +2,8 @@
#include <mirrage/utils/messagebus.hpp>
#include <mirrage/utils/units.hpp>
#include <vector>
#include <mirrage/asset/asset_manager.hpp>
namespace phase_shifter::gameplay {
......@@ -17,7 +19,7 @@ namespace phase_shifter::gameplay {
// TODO: replace placeholder logic with actual beat detection
class Beat_system {
public:
Beat_system(mirrage::util::Message_bus&);
Beat_system(mirrage::util::Message_bus&, mirrage::asset::Asset_manager&);
void update(mirrage::util::Time);
......@@ -27,10 +29,16 @@ namespace phase_shifter::gameplay {
auto graphic_time_scale() const -> float;
const std::vector<float>& time_stamps() const ;
int beat_index() const;
private:
mirrage::util::Message_bus& _bus;
mirrage::asset::Asset_manager& _assets;
Beat_state _state;
float _acc = 0.f;
std::vector<float> _time_stamps;
int _beat_index = -1;
};
} // namespace phase_shifter::gameplay
src/meta_system.cpp
View file @ 593e9372
......@@ -32,7 +32,7 @@ namespace phase_shifter {
, _audio()
, _renderer(engine.renderer_factory().create_renderer(_entities, engine.render_pass_mask()))
, _model_loading(std::make_unique<renderer::Loading_system>(_entities, engine.assets()))
, _beat_system(std::make_unique<gameplay::Beat_system>(engine.bus()))
, _beat_system(std::make_unique<gameplay::Beat_system>(engine.bus(), engine.assets()))
, _level_system(std::make_unique<level::Level_system>(_entities, engine.assets()))
, _movement_system(std::make_unique<gameplay::Movement_system>(
engine.bus(), _entities, *_beat_system, *_level_system))
......
src/ui/hud_system.cpp
View file @ 593e9372
......@@ -14,9 +14,10 @@ namespace phase_shifter::ui {
namespace {
constexpr auto hud_height = 100;
constexpr auto bar_height = 90;
constexpr auto beat_bar_height = 80;
constexpr auto bar_height = 80;
constexpr auto beat_bar_height = 79;
constexpr auto bar_speed = 100;
constexpr auto beat_bar_length = 300.0f;
} // namespace
Hud_system::Hud_system(mirrage::gui::Gui& gui,
......@@ -27,9 +28,8 @@ namespace phase_shifter::ui {
//_circle_texture = _gui.load_texture("tex:circle"_aid);
}
void Hud_system::update(mirrage::util::Time dt)
{
_offset = _beat_system.beat_state().time_to_beat * bar_speed;
void Hud_system::update(mirrage::util::Time dt) {
_passed += dt.value();
}
void Hud_system::draw()
......@@ -63,20 +63,27 @@ namespace phase_shifter::ui {
ImGui::PushStyleColor(ImGuiCol_Border, "#00000000"_imcolor.Value); // Hide Border
ImVec2 cursor = ImGui::GetCursorScreenPos();
cursor.y += hud_height / 2.f - 10;
auto beat_state = _beat_system.beat_state();
auto line_offset = bar_speed * beat_state.avg_beat_time;
auto beats = std::clamp(beat_state.beats_left, 0, 5);
auto beat_state = _beat_system.beat_state();
auto beats = _beat_system.time_stamps();
auto beat_index = _beat_system.beat_index() + 1;
//auto line_offset = bar_speed * beat_state.avg_beat_time;
//auto beats = std::clamp(beat_state.beats_left, 0, 5);
ImGui::BeginChild("Line", {viewport.z, bar_height}, true);
ImDrawList* drawList = ImGui::GetWindowDrawList();
for(int i = 0; i < beats; i++) {
auto x_offset = _offset + i * line_offset;
auto height = beat_bar_height * (1.f - glm::smoothstep(0.f, beats * line_offset, x_offset));
while (beat_index < static_cast<int>(beats.size())) {
auto x_offset = (beats[beat_index] - _passed) * bar_speed;
auto height = beat_bar_height * (1.f - glm::smoothstep(0.f, beat_bar_length, x_offset));
ImVec2 p(cursor.x + viewport.z / 2 - x_offset, cursor.y - height / 2.f);
drawList->AddLine(p, {p.x, p.y + height}, 0xFFFFFFFF, 1);
p.x = cursor.x + viewport.z / 2 + x_offset;
drawList->AddLine(p, {p.x, p.y + height}, 0xFFFFFFFF, 1);
if(x_offset > beat_bar_length + 50) {
break;
}
beat_index++;
}
ImVec2 middle(cursor.x + viewport.z / 2, cursor.y - bar_height / 2.f);
......
src/ui/hud_system.hpp
View file @ 593e9372
......@@ -24,7 +24,7 @@ namespace phase_shifter::ui {
private:
mirrage::gui::Gui& _gui;
mirrage::ecs::Entity_manager& _ecs;
float _offset = 0;
float _passed = 0;
const phase_shifter::gameplay::Beat_system& _beat_system;
};
......
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