diff options
Diffstat (limited to 'src/Entities/Compoments/AIAggresssiveComponent.cpp')
-rw-r--r-- | src/Entities/Compoments/AIAggresssiveComponent.cpp | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/Entities/Compoments/AIAggresssiveComponent.cpp b/src/Entities/Compoments/AIAggresssiveComponent.cpp new file mode 100644 index 000000000..de8c8d2a9 --- /dev/null +++ b/src/Entities/Compoments/AIAggresssiveComponent.cpp @@ -0,0 +1,150 @@ + +#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules +#include "AIAggressiveComponent.h" +#include "../Entities/Player.h" +#include "../Tracer.h" + + + +void cAIAggressiveComponent::Tick(float a_Dt, cChunk & a_Chunk) +{ + super::Tick(a_Dt, a_Chunk); + + if (m_EMState == CHASING) + { + CheckEventLostPlayer(); + } + else + { + CheckEventSeePlayer(); + } + + if (m_Target == NULL) + return; + + cTracer LineOfSight(m_Self->GetWorld()); + Vector3d AttackDirection(m_Target->GetPosition() - m_Self->GetPosition()); + + if (ReachedFinalDestination() && !LineOfSight.Trace(m_Self->GetPosition(), AttackDirection, (int)AttackDirection.Length())) + { + // Attack if reached destination, target isn't null, and have a clear line of sight to target (so won't attack through walls) + Attack(a_Dt / 1000); + } +} + + +void cAIAggressiveComponent::Attack(float a_Dt) +{ + float attack_interval = m_Self->GetAttackInterval(); + attack_interval += a_Dt * m_Self->GetAttackRate(); + + if ((m_Target != NULL) && (attack_interval > 3.0)) + { + // Setting this higher gives us more wiggle room for attackrate + attack_interval = 0.0f; + m_Target->TakeDamage(dtMobAttack, m_Self, m_Self->GetAttackDamage(), 0); + } + + m_Self->SetAttackInterval(attack_interval); +} + + +bool cAIAggressiveComponent::IsMovingToTargetPosition() +{ + // Difference between destination x and target x is negligible (to 10^-12 precision) + if (fabsf((float)m_Self->m_FinalDestination.x - (float)m_Target->GetPosX()) < std::numeric_limits<float>::epsilon()) + { + return false; + } + // Difference between destination z and target z is negligible (to 10^-12 precision) + else if (fabsf((float)m_Self->m_FinalDestination.z - (float)m_Target->GetPosZ()) > std::numeric_limits<float>::epsilon()) + { + return false; + } + return true; +} + + +bool cAIAggressiveComponent::ReachedFinalDestination() +{ + if ((m_Self->GetPosition() - m_Self->m_FinalDestination).Length() <= m_Self->GetAttackRange()) + { + return true; + } + + return false; +} + + +/// Event Checkers +//Checks to see if EventSeePlayer should be fired +//monster sez: Do I see the player +void cAIAggressiveComponent::CheckEventSeePlayer(void) +{ + // TODO: Rewrite this to use cWorld's DoWithPlayers() + cPlayer * Closest = m_Self->GetWorld()->FindClosestPlayer(m_Self->GetPosition(), (float)m_Self->GetSightDistance(), false); + + if (Closest != NULL) + { + EventSeePlayer(Closest); + } +} + + +void cAIAggressiveComponent::CheckEventLostPlayer(void) +{ + if (m_Target != NULL) + { + if ((m_Target->GetPosition() - m_Self->GetPosition()).Length() > m_Self->GetSightDistance()) + { + EventLosePlayer(); + } + } + else + { + EventLosePlayer(); + } +} + + +/// Event Handlers +void cAIAggressiveComponent::EventSeePlayer(cEntity * a_Entity) +{ + if (!((cPlayer *)a_Entity)->IsGameModeCreative()) + { + m_Target = a_Entity; + m_EMState = CHASING; + } +} + + +void cAIAggressiveComponent::EventLosePlayer(void) +{ + m_Target = NULL; + m_EMState = IDLE; +} + + +/// State Logic +void cAIAggressiveComponent::InStateChasing(float a_Dt) +{ + + if (m_Target != NULL) + { + if (m_Target->IsPlayer()) + { + if (((cPlayer *)m_Target)->IsGameModeCreative()) + { + m_EMState = IDLE; + return; + } + } + + if (!IsMovingToTargetPosition()) + { + m_Self->MoveToPosition(m_Target->GetPosition()); + } + } +} + + |