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fix: add range checks to npc combat skill behavior (#2003)

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* fix: add range checks to npc combat skill behavior

tested that all enemies now cast skills smartly based on range to targets, and do not cast skills if they are out of range.

fixes an issue where the spider queen could attack you outside the normal range

fixes an issue where entering happy flower caused you to need to restart the client

fixes #965

* feedback
This commit is contained in:
David Markowitz
2026-06-18 23:27:49 -07:00
committed by GitHub
parent ce9d4e823c
commit 56504d9447
7 changed files with 74 additions and 10 deletions
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30
dGame/dBehaviors/NpcCombatSkillBehavior.cpp
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@@ -5,20 +5,40 @@
void NpcCombatSkillBehavior::Calculate(BehaviorContext* context, RakNet::BitStream& bit_stream, BehaviorBranchContext branch) {
context->skillTime = this->m_npcSkillTime;
const auto* const targetEntity = Game::entityManager->GetEntity(branch.target);
const auto* const sourceEntity = Game::entityManager->GetEntity(context->caster);
for (auto* behavior : this->m_behaviors) {
behavior->Calculate(context, bit_stream, branch);
bool cast = true;
// Check that the target is within the cast range
if (targetEntity && sourceEntity && this->m_maxRange != 0.0f) {
const auto targetPos = targetEntity->GetPosition();
const auto sourcePos = sourceEntity->GetPosition();
const auto distance = NiPoint3::DistanceSquared(targetPos, sourcePos);
cast = distance >= this->m_minRange && distance <= this->m_maxRange;
}
if (cast) {
for (auto* behavior : this->m_behaviors) {
behavior->Calculate(context, bit_stream, branch);
}
} else {
// We failed to find a valid target, do not continue the behavior
context->foundTarget = false;
}
}
void NpcCombatSkillBehavior::Load() {
this->m_npcSkillTime = GetFloat("npc skill time");
this->m_minRange = GetFloat("min range") * 0.9f; // Make the min and max 10% smaller to account for server/client position disagreements
this->m_minRange *= this->m_minRange;
this->m_maxRange = GetFloat("max range") * 0.9f; // Make the min and max 10% smaller to account for server/client position disagreements
this->m_maxRange *= this->m_maxRange;
const auto parameters = GetParameterNames();
for (const auto& parameter : parameters) {
if (parameter.first.rfind("behavior", 0) == 0) {
auto* action = GetAction(parameter.second);
for (const auto& [parameter, value] : parameters) {
if (parameter.rfind("behavior", 0) == 0) {
auto* action = GetAction(value);
this->m_behaviors.push_back(action);
}

1
dGame/dBehaviors/NpcCombatSkillBehavior.h
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@@ -9,6 +9,7 @@ public:
float m_npcSkillTime;
float m_maxRange{};
float m_minRange{};
/*
* Inherited