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#include <kurator/sim/weapons.h>
#include <entt/entt.hpp>
#include <kurator/sim/events.h>
#include <kurator/sim/FloatingMovement.h>
#include <kurator/sim/HitPoints.h>
#include <kurator/sim/State.h>
#include <kurator/universe/TurretType.h>
namespace kurator
{
namespace sim
{
static bool consume(float& dt, double& target);
static bool reload_(float& dt, Turret& turret);
void
Turret::shoot_at(State& ctx, const entt::entity& target, const double distance)
{
float remaining_dt = ctx.clock.dt;
while (reload_(remaining_dt, *this)) {
auto& target_points = ctx.registry.get<HitPoints>(target);
const auto& movement = ctx.registry.get<FloatingMovement>(target);
auto damage = type.effective_damage(distance, movement.speed.magnitude());
if (damage > 0.0) {
damage = target_points.deal(damage);
ctx.dispatcher.trigger(Hit{damage, owner, target});
}
delay = type.rate_of_fire;
if (--rounds < 1)
reload = type.reload;
}
}
void
update_turrets(State& ctx)
{
auto turrets = ctx.registry.view<Turret>();
for (auto&& [entity, turret] : turrets.each()) {
if (!ctx.registry.valid(turret.owner)) {
ctx.registry.destroy(entity);
continue;
}
float remaining_dt = ctx.clock.dt;
while (remaining_dt > 0.0) {
if (reload_(remaining_dt, turret))
break;
}
}
}
bool
consume(float& dt, double& target)
{
if (target <= 0.0)
return true;
const auto _dt = dt;
dt -= target;
target -= _dt;
return target <= 0.0;
}
bool
reload_(float& dt, Turret& turret) // at this point move it to the class?
{
if (turret.rounds < 1 && consume(dt, turret.reload))
turret.rounds = turret.type.rounds;
return turret.rounds > 0 && consume(dt, turret.delay);
}
} // namespace sim
} // namespace kurator
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