verysecrethero
67 lines
2.9 KiB
C++
67 lines
2.9 KiB
C++
#include "Systems/PickupSpawnSystem.h"
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PickupSpawnSystem::PickupSpawnSystem(World* m_World, EventBroker* eventBroker)
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: System(m_World, eventBroker)
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{
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EVENT_SUBSCRIBE_MEMBER(m_ETriggerTouch, &PickupSpawnSystem::OnTriggerTouch);
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}
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void PickupSpawnSystem::Update(double dt)
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{
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for (auto it = m_ETriggerTouchVector.begin(); it != m_ETriggerTouchVector.end(); ++it)
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{
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auto& healthPickupPosition = *it;
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//set the double timer value (value 3)
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healthPickupPosition.DecreaseThisRespawnTimer -= dt;
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if (healthPickupPosition.DecreaseThisRespawnTimer < 0) {
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//spawn and delete the vector item
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auto entityFile = ResourceManager::Load<EntityFile>("Schema/Entities/HealthPickup.xml");
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EntityFileParser parser(entityFile);
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EntityID healthPickupID = parser.MergeEntities(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 = EntityWrapper(m_World, healthPickupID);
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m_EventBroker->Publish(ePickupSpawned);
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//set values from the old entity to the new entity
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auto& newHealthPickupEntity = EntityWrapper(m_World, healthPickupID);
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newHealthPickupEntity["Transform"]["Position"] = healthPickupPosition.Pos;
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newHealthPickupEntity["HealthPickup"]["HealthGain"] = healthPickupPosition.HealthGain;
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newHealthPickupEntity["HealthPickup"]["RespawnTimer"] = healthPickupPosition.RespawnTimer;
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//erase the current element (healthPickupPosition)
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m_ETriggerTouchVector.erase(it);
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break;
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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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double healthGiven = 0.01*(double)e.Trigger["HealthPickup"]["HealthGain"] * (double)e.Entity["Health"]["MaxHealth"];
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//cant pick up healthpacks if you are already at MaxHealth
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if ((double)e.Entity["Health"]["Health"] >= (double)e.Entity["Health"]["MaxHealth"]) {
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return false;
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}
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//personEntered = e.Entity, thingEntered = e.Trigger
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Events::PlayerHealthPickup ePlayerHealthPickup;
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ePlayerHealthPickup.HealthAmount = healthGiven;
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ePlayerHealthPickup.Player = e.Entity;
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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)e.Trigger["Transform"]["Position"] ,e.Trigger["HealthPickup"]["HealthGain"],
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e.Trigger["HealthPickup"]["RespawnTimer"],e.Trigger["HealthPickup"]["RespawnTimer"] });
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//delete the healthpickup
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m_World->DeleteEntity(e.Trigger.ID);
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return true;
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}
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