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#include "Explosion.h"
#include "../ILevelHandler.h"
#include "../../nCine/Base/Random.h"
namespace Jazz2::Actors
{
Explosion::Explosion()
: _lightBrightness(0.0f), _lightIntensity(0.0f), _lightRadiusNear(0.0f), _lightRadiusFar(0.0f), _scale(1.0f), _time(0.0f)
{
}
void Explosion::Create(ILevelHandler* levelHandler, const Vector3i& pos, Type type, float scale)
{
std::shared_ptr<Explosion> explosion = std::make_shared<Explosion>();
std::uint8_t explosionParams[8];
*(std::uint16_t*)&explosionParams[0] = (uint16_t)type;
// 2-3: unused
*(float*)&explosionParams[4] = scale;
explosion->OnActivated(ActorActivationDetails(
levelHandler,
pos,
explosionParams
));
levelHandler->AddActor(explosion);
}
Task<bool> Explosion::OnActivatedAsync(const ActorActivationDetails& details)
{
_type = (Type)*(std::uint16_t*)&details.Params[0];
_scale = *(float*)&details.Params[4];
SetState(ActorState::ForceDisableCollisions, true);
SetState(ActorState::CanBeFrozen | ActorState::CollideWithTileset | ActorState::CollideWithOtherActors | ActorState::ApplyGravitation, false);
async_await RequestMetadataAsync("Common/Explosions"_s);
// IceShrapnels are randomized below
if (_type != Type::IceShrapnel) {
SetAnimation((AnimState)_type);
}
switch (_type) {
case Type::Large: {
_lightIntensity = 0.8f;
_lightBrightness = 0.9f;
_lightRadiusFar = 55.0f * _scale;
break;
}
case Type::Pepper: {
_lightIntensity = 0.5f;
_lightBrightness = 0.2f;
_lightRadiusNear = 7.0f * _scale;
_lightRadiusFar = 14.0f * _scale;
break;
}
case Type::RF: {
_lightIntensity = 0.2f;
_lightBrightness = 0.2f;
_lightRadiusFar = 50.0f * _scale;
break;
}
case Type::RFUpgraded: {
_lightIntensity = 0.2f;
_lightBrightness = 0.2f;
_lightRadiusFar = 18.0f * _scale;
break;
}
case Type::IceShrapnel: {
SetAnimation((AnimState)((std::uint32_t)Type::IceShrapnel + Random().Fast(0, 4)));
SetState(ActorState::CollideWithTileset | ActorState::ApplyGravitation | ActorState::SkipPerPixelCollisions, true);
SetState(ActorState::ForceDisableCollisions, false);
_renderer.Initialize(ActorRendererType::FrozenMask);
_renderer.CurrentFrame = _renderer.FirstFrame + Random().Fast(0, _renderer.FrameCount);
_renderer.setAlphaF(1.0f);
float speedX = Random().FastFloat(0.5f, 2.0f);
_renderer.AnimDuration /= speedX * 0.7f;
_speed = Vector2f(speedX * _scale * (Random().NextBool() ? -1.0f : 1.0f), _scale * Random().FastFloat(-4.0f, -1.0f));
_pos += _speed * _scale * _scale;
_elasticity = 0.2f;
SetFacingLeft(_speed.X < 0.0f);
break;
}
case Type::Generator: {
// Apply random orientation
_renderer.setRotation(Random().NextFloat(0.0f, 4.0f * fPiOver2));
SetFacingLeft(Random().NextFloat() < 0.5f);
break;
}
}
_renderer.setScale(_scale);
async_return true;
}
void Explosion::OnUpdate(float timeMult)
{
_time += timeMult;
switch (_type) {
case Type::Large: {
_lightRadiusFar -= timeMult * _scale * 5.0f;
break;
}
case Type::Pepper: {
_lightIntensity -= timeMult * 0.05f;
break;
}
case Type::RF: {
float phase1 = _time * 0.16f;
float phase2 = (phase1 < fRadAngle270 ? sinf(phase1) : -1.0f);
_lightIntensity = 0.2f + phase2;
_lightBrightness = 0.2f + phase2;
_lightRadiusFar = 50.0f * _scale * (1.0f + phase2);
break;
}
case Type::RFUpgraded: {
float phase1 = _time * 0.18f;
float phase2 = (phase1 < fRadAngle270 ? sinf(phase1) : -1.0f);
_lightIntensity = 0.1f + phase2 * 0.1f;
_lightBrightness = 0.2f + phase2 * 0.4f;
_lightRadiusNear = (2.0f * _scale) + (phase1 * 1.4f);
_lightRadiusFar = (16.0f * _scale) + (phase1 * 5.0f);
break;
}
case Type::IceShrapnel: {
ActorBase::OnUpdate(timeMult);
float newAlpha = _renderer.alpha() - (0.014f * timeMult);
if (newAlpha > 0.0f) {
_renderer.setAlphaF(newAlpha);
_renderer.setScale(std::min(_scale * newAlpha * 2.0f, _scale));
} else {
DecreaseHealth(INT32_MAX);
}
break;
}
}
}
void Explosion::OnUpdateHitbox()
{
UpdateHitbox(2, 2);
}
void Explosion::OnEmitLights(SmallVectorImpl<LightEmitter>& lights)
{
if (_lightRadiusFar > 0.0f) {
auto& light1 = lights.emplace_back();
light1.Pos = _pos;
light1.Intensity = _lightIntensity;
light1.Brightness = _lightBrightness;
light1.RadiusNear = _lightRadiusNear;
light1.RadiusFar = _lightRadiusFar;
}
if (_type == Type::RFUpgraded) {
// RFUpgraded explosion uses ring light
float distance = 20.0f + (_time * 6.0f);
std::int32_t SegmentCount = (std::int32_t)(distance * 0.5f);
for (std::int32_t i = 0; i < SegmentCount; i++) {
float angle = i * fTwoPi / SegmentCount;
auto& light = lights.emplace_back();
light.Pos = _pos + Vector2f(cosf(angle) * distance, sinf(angle) * distance);
light.Intensity = _lightIntensity;
light.Brightness = _lightBrightness;
light.RadiusNear = _lightRadiusNear;
light.RadiusFar = _lightRadiusFar;
}
} else if (_type == Type::Pepper) {
auto& light2 = lights.emplace_back();
light2.Pos = _pos;
light2.Intensity = 0.1f;
light2.RadiusNear = 0.0f;
light2.RadiusFar = 160.0f * _scale;
}
}
void Explosion::OnAnimationFinished()
{
if (_type != Type::IceShrapnel) {
DecreaseHealth(INT32_MAX);
}
}
}
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