void detonate_if(const entity_id& id, const transformr& where, const logic_step& step) {
step.get_cosmos()[id].dispatch_on_having_all<invariants::explosive>([&](const auto typed_handle) {
detonate({
step, id, typed_handle.template get<invariants::explosive>(), where
});
});
}
void demolitions_system::advance_cascade_explosions(const logic_step step) {
auto& cosm = step.get_cosmos();
const auto& clk = cosm.get_clock();
cosm.for_each_having<components::cascade_explosion>(
[&](const auto it) {
const auto& cascade_def = it.template get<invariants::cascade_explosion>();
auto& cascade = it.template get<components::cascade_explosion>();
auto& when_next = cascade.when_next_explosion;
if (clk.now >= when_next) {
auto rng = cosm.get_nontemporal_rng_for(it);
{
const auto next_explosion_in_ms = rng.randval(cascade_def.explosion_interval_ms);
when_next = clk.now;
when_next.step += next_explosion_in_ms / clk.dt.in_milliseconds();
}
{
const auto angle_displacement = rng.randval_h(cascade_def.max_explosion_angle_displacement);
const auto& body = it.template get<components::rigid_body>();
auto vel = body.get_velocity();
vel.rotate(angle_displacement, vec2());
body.set_velocity(vel);
}
auto expl_in = cascade_def.explosion;
expl_in *= rng.randval_vm(1.f, cascade_def.explosion_scale_variation);
expl_in.instantiate(
step,
it.get_logic_transform(),
damage_cause(it)
);
--cascade.explosions_left;
if (0 == cascade.explosions_left) {
step.queue_deletion_of(it, "Cascade explosions exhausted");
}
}
}
);
}
void demolitions_system::detonate_fuses(const logic_step step) {
auto& cosm = step.get_cosmos();
const auto& clk = cosm.get_clock();
cosm.for_each_having<components::hand_fuse>(
[&](const auto& it) {
const auto fuse_logic = fuse_logic_provider(it, step);
fuse_logic.advance_arming_and_defusing();
auto& fuse = fuse_logic.fuse;
const auto& fuse_def = fuse_logic.fuse_def;
if (fuse.armed()) {
{
auto& when_beep = fuse.when_last_beep;
if (!when_beep.was_set()) {
when_beep = clk.now;
/* Don't play the beep effect for the first time. */
}
else {
const auto beep = beep_math { fuse, fuse_def, clk };
if (beep.should_beep_again()) {
fuse_def.beep_sound.start(
step,
sound_effect_start_input::fire_and_forget(fuse_logic.fused_transform),
always_predictable_v
);
when_beep = clk.now;
}
}
}
const auto when_armed = fuse.when_armed;
const auto& fuse_def = it.template get<invariants::hand_fuse>();
if (clk.is_ready(fuse_def.fuse_delay_ms, when_armed)) {
detonate_if(it, step);
}
}
}
);
}