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#pragma once
#include "accel-classic.hpp"
#include "accel-jump.hpp"
#include "accel-natural.hpp"
#include "accel-power.hpp"
#include "accel-motivity.hpp"
#include "accel-noaccel.hpp"
namespace rawaccel {
enum class internal_mode {
classic_lgcy,
classic_gain,
jump_lgcy,
jump_gain,
natural_lgcy,
natural_gain,
power,
motivity,
noaccel
};
constexpr internal_mode make_mode(accel_mode m, bool legacy)
{
switch (m) {
case accel_mode::classic:
return legacy ? internal_mode::classic_lgcy : internal_mode::classic_gain;
case accel_mode::jump:
return legacy ? internal_mode::jump_lgcy : internal_mode::jump_gain;
case accel_mode::natural:
return legacy ? internal_mode::natural_lgcy : internal_mode::natural_gain;
case accel_mode::power:
return internal_mode::power;
case accel_mode::motivity:
return internal_mode::motivity;
default:
return internal_mode::noaccel;
}
}
constexpr internal_mode make_mode(const accel_args& args)
{
return make_mode(args.mode, args.legacy);
}
template <typename Visitor, typename Variant>
inline auto visit_accel(Visitor vis, Variant&& var)
{
switch (var.tag) {
case internal_mode::classic_lgcy: return vis(var.u.classic_l);
case internal_mode::classic_gain: return vis(var.u.classic_g);
case internal_mode::jump_lgcy: return vis(var.u.jump_l);
case internal_mode::jump_gain: return vis(var.u.jump_g);
case internal_mode::natural_lgcy: return vis(var.u.natural_l);
case internal_mode::natural_gain: return vis(var.u.natural_g);
case internal_mode::power: return vis(var.u.power);
case internal_mode::motivity: return vis(var.u.motivity);
default: return vis(var.u.noaccel);
}
}
struct accel_variant {
si_pair* lookup;
internal_mode tag = internal_mode::noaccel;
union union_t {
classic classic_g;
classic_legacy classic_l;
jump jump_g;
jump_legacy jump_l;
natural natural_g;
natural_legacy natural_l;
power power;
motivity motivity;
accel_noaccel noaccel = {};
} u = {};
accel_variant(const accel_args& args, si_pair* lut = nullptr) :
tag(make_mode(args)), lookup(lut)
{
visit_accel([&](auto& impl) {
impl = { args };
}, *this);
if (lookup && tag == internal_mode::motivity) {
u.motivity.fill(lookup);
}
}
double apply(double speed) const
{
if (lookup && tag == internal_mode::motivity) {
return u.motivity.apply(lookup, speed);
}
return visit_accel([=](auto&& impl) {
return impl(speed);
}, *this);
}
accel_variant() = default;
};
}
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