102 lines
4.2 KiB
C++
102 lines
4.2 KiB
C++
#include "Systems/PickupSpawnSystem.h"
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PickupSpawnSystem::PickupSpawnSystem(SystemParams params)
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: System(params)
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{
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if (IsServer) {
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EVENT_SUBSCRIBE_MEMBER(m_ETriggerTouch, &PickupSpawnSystem::OnTriggerTouch);
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EVENT_SUBSCRIBE_MEMBER(m_ETriggerLeave, &PickupSpawnSystem::OnTriggerLeave);
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}
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}
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void PickupSpawnSystem::Update(double dt)
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{
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if (IsServer) {
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auto it = m_ETriggerTouchVector.begin();
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while (it != m_ETriggerTouchVector.end()) {
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auto& somePickup = *it;
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somePickup.DecreaseThisRespawnTimer -= dt;
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if (somePickup.DecreaseThisRespawnTimer < 0.0) {
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//spawn the new healthPickup
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auto entityFile = ResourceManager::Load<EntityFile>("Schema/Entities/HealthPickup.xml");
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EntityWrapper healthPickup = entityFile->MergeInto(m_World);
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//let the world know a pickup has spawned (graphics effects, etc)
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Events::PickupSpawned ePickupSpawned;
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ePickupSpawned.Pickup = healthPickup;
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m_EventBroker->Publish(ePickupSpawned);
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//copy values from the old entity to the new entity
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auto& newHealthPickupEntity = healthPickup;
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newHealthPickupEntity["Transform"]["Position"] = somePickup.Pos;
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newHealthPickupEntity["HealthPickup"]["HealthGain"] = somePickup.HealthGain;
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newHealthPickupEntity["HealthPickup"]["RespawnTimer"] = somePickup.RespawnTimer;
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m_World->SetParent(newHealthPickupEntity.ID, somePickup.parentID);
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//erase the current element (somePickup)
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it = m_ETriggerTouchVector.erase(it);
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} else {
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it++;
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}
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}
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//still touching PickupAtMaximum?
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for (auto& it = m_PickupAtMaximum.begin(); it != m_PickupAtMaximum.end(); ++it) {
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if (!it->player.Valid()) {
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m_PickupAtMaximum.erase(it);
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break;
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}
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if ((double)it->player["Health"]["Health"] < (double)it->player["Health"]["MaxHealth"]) {
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DoPickup(it->player, it->trigger);
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m_PickupAtMaximum.erase(it);
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break;
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}
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}
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}
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}
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bool PickupSpawnSystem::OnTriggerTouch(Events::TriggerTouch& e)
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{
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if (!e.Trigger.HasComponent("HealthPickup")) {
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return false;
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}
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//if at maxhealth, save the trigger-touch to a vector since standing inside it will not re-trigger the trigger
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if ((double)e.Entity["Health"]["Health"] >= (double)e.Entity["Health"]["MaxHealth"]) {
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m_PickupAtMaximum.push_back({ e.Entity, e.Trigger });
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return false;
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}
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DoPickup(e.Entity, e.Trigger);
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return true;
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}
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bool PickupSpawnSystem::OnTriggerLeave(Events::TriggerLeave& e)
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{
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if (!e.Trigger.HasComponent("HealthPickup")) {
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return false;
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}
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//triggerleave erases possible m_PickupAtMaximum
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for (auto& it = m_PickupAtMaximum.begin(); it != m_PickupAtMaximum.end(); ++it) {
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if (it->trigger.ID == e.Trigger.ID && it->player.ID == e.Entity.ID) {
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m_PickupAtMaximum.erase(it);
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break;
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}
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}
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return true;
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}
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void PickupSpawnSystem::DoPickup(EntityWrapper &player, EntityWrapper &trigger)
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{
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double healthGiven = 0.01*(double)trigger["HealthPickup"]["HealthGain"] * (double)player["Health"]["MaxHealth"];
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//only the server will increase the players hp and set it in the next delta
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Events::PlayerHealthPickup ePlayerHealthPickup;
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ePlayerHealthPickup.HealthAmount = healthGiven;
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ePlayerHealthPickup.Player = player;
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m_EventBroker->Publish(ePlayerHealthPickup);
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//copy position, healthgain, respawntimer (twice since one of the values will be counted down to 0, the other will be set in the new object)
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//we need to copy all values since each value can be different for each healthPickup
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m_ETriggerTouchVector.push_back({ (glm::vec3)trigger["Transform"]["Position"], trigger["HealthPickup"]["HealthGain"],
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trigger["HealthPickup"]["RespawnTimer"], trigger["HealthPickup"]["RespawnTimer"], m_World->GetParent(trigger.ID) });
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//delete the healthpickup
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m_World->DeleteEntity(trigger.ID);
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}
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