verysecrethero
80 lines
3.2 KiB
C++
80 lines
3.2 KiB
C++
#include "Systems/AmmoPickupSystem.h"
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AmmoPickupSystem::AmmoPickupSystem(SystemParams params)
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: System(params)
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{
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EVENT_SUBSCRIBE_MEMBER(m_ETriggerTouch, &AmmoPickupSystem::OnTriggerTouch);
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}
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void AmmoPickupSystem::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& ammoPickupPosition = *it;
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//set the double timer value (value 3)
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ammoPickupPosition.DecreaseThisRespawnTimer -= dt;
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if (ammoPickupPosition.DecreaseThisRespawnTimer < 0.0) {
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//spawn and delete the vector item
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auto entityFile = ResourceManager::Load<EntityFile>("Schema/Entities/AmmoPickup.xml");
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EntityFileParser parser(entityFile);
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EntityID ammoPickupID = 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, ammoPickupID);
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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& newAmmoPickupEntity = EntityWrapper(m_World, ammoPickupID);
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newAmmoPickupEntity["Transform"]["Position"] = ammoPickupPosition.Pos;
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newAmmoPickupEntity["AmmoPickup"]["AmmoGain"] = ammoPickupPosition.AmmoGain;
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newAmmoPickupEntity["AmmoPickup"]["RespawnTimer"] = ammoPickupPosition.RespawnTimer;
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m_World->SetParent(newAmmoPickupEntity.ID, ammoPickupPosition.parentID);
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//erase the current element (AmmoPickupPosition)
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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 AmmoPickupSystem::OnTriggerTouch(Events::TriggerTouch& e)
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{
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if (e.Entity != LocalPlayer) {
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return false;
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}
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//TODO: add other weapontypes
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if (!e.Entity.HasComponent("AssaultWeapon")) {
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return false;
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}
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if (!e.Trigger.HasComponent("AmmoPickup")) {
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return false;
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}
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int maxWeaponAmmo = (int)e.Entity["AssaultWeapon"]["MaxAmmo"];
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int& currentAmmo = (int)e.Entity["AssaultWeapon"]["Ammo"];
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int ammoGiven = 0.01*(double)e.Trigger["AmmoPickup"]["AmmoGain"] * maxWeaponAmmo;
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//cant pick up ammopacks if you are already at MaxAmmo
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if (currentAmmo >= maxWeaponAmmo) {
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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::AmmoPickup ePlayerAmmoPickup;
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ePlayerAmmoPickup.AmmoGain = ammoGiven;
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ePlayerAmmoPickup.Player = e.Entity;
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m_EventBroker->Publish(ePlayerAmmoPickup);
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//immediately give the player the ammo
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currentAmmo = std::min(currentAmmo + ammoGiven, maxWeaponAmmo);
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//copy position, ammogain, 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 ammoPickup
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m_ETriggerTouchVector.push_back({ e.Trigger["Transform"]["Position"], e.Trigger["AmmoPickup"]["AmmoGain"],
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e.Trigger["AmmoPickup"]["RespawnTimer"], e.Trigger["AmmoPickup"]["RespawnTimer"], m_World->GetParent(e.Trigger.ID) });
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//delete the ammopickup
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m_World->DeleteEntity(e.Trigger.ID);
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return true;
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}
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