void AI::collisionHandler(std::vector<GameObject *> &m_GOList)
{
if(collisionChecking(pos + Vector3(collisionMesh.ColBox.x, ModelPos.y, 0), m_GOList))
{
if(vel.x > 0)
{
vel.x = 0;
}
}
if(collisionChecking(pos + Vector3(-collisionMesh.ColBox.x, ModelPos.y, 0), m_GOList))
{
if(vel.x < 0)
{
vel.x = 0;
}
}
if(collisionChecking(pos + Vector3(0, ModelPos.y, collisionMesh.ColBox.z), m_GOList))
{
if(vel.z > 0)
{
vel.z = 0;
}
}
if(collisionChecking(pos + Vector3(0, ModelPos.y, -collisionMesh.ColBox.z), m_GOList))
{
if(vel.z < 0)
{
vel.z = 0;
}
}
}
void Physics3DWorld::stepSimulate(float dt)
{
if (_btPhyiscsWorld)
{
setGhostPairCallback();
//should sync kinematic node before simulation
for (auto it : _physicsComponents)
{
it->preSimulate();
}
_btPhyiscsWorld->stepSimulation(dt, 3);
//sync dynamic node after simulation
for (auto it : _physicsComponents)
{
it->postSimulate();
}
if (needCollisionChecking())
collisionChecking();
}
}
void AI::aiStateHandling(double &dt, Vector3 &playerPos, std::vector<GameObject*> &m_GOList)
{
Mtx44 rotation;
rotation.SetToRotation(CalAnglefromPosition(Lookat, pos, true), 0.f, 1.f, 0.f);
Vector3 L, R, C;
C = rotation * Vector3(0.f, ModelPos.y, 50.f);
L = rotation * Vector3(-15.f, ModelPos.y, 15.f);
R = rotation * Vector3(15.f, ModelPos.y, 15.f);
switch (e_State)
{
case WALKING:
{
//Have the AI partol a certain area
//Need Pathfinding i think
destination = playerPos;
if (b_isDestinationWithinFOV && b_isDestinationVisible)
{
//If player is infront and near player, then ai will switch to attack state
if ((playerPos - pos).LengthSquared() < d_detectionRange)
{
currentLookat.x = playerPos.x;
currentLookat.z = playerPos.z;
destination = playerPos;
prevPosition = pos;
e_State = ATTACK;
break;
}
//if ai saw player but is too far way, the ai will investigate
else if ((playerPos - pos).LengthSquared() >= d_detectionRange && (playerPos - pos).LengthSquared() <= d_detectionRangeMax)
{
destination.x = playerPos.x;
destination.z = playerPos.z;
destination = playerPos;
prevPosition = pos;
e_State = ALERT;
break;
}
}
SensorUpdate(dt, collisionChecking(pos + L, m_GOList), collisionChecking(pos + C, m_GOList), collisionChecking(pos + R, m_GOList));
}
break;
case ALERT:
{
//If destination is not visible
if (!b_isDestinationVisible)
{
//use sensor update 2 to get to the destination
SensorUpdate2(dt, collisionChecking(pos + L, m_GOList), collisionChecking(pos + C, m_GOList), collisionChecking(pos + R, m_GOList));
}
//If player is infront and near player, then ai will switch to attack state
if (isVisible(pos, Lookat, getDetectionAngle(), playerPos) && (playerPos - pos).LengthSquared() < d_detectionRange)
{
currentLookat.x = playerPos.x;
currentLookat.z = playerPos.z;
destination = playerPos;
}
if (b_isDestinationVisible && b_isDestinationWithinFOV && destination == playerPos)
{
e_State = ATTACK;
}
if(b_isDestinationVisible && b_isDestinationWithinFOV)
{
moveToDestination(dt);
}
if((pos - destination).LengthSquared() < 300)
{
e_State = WALKING;
}
}
break;
case ATTACK:
{
destination = playerPos;
//if enemy is holding a weapon
if (holding != NULL)
{
if (holding->isWeapon)
{
WeaponsObject *WO = dynamic_cast<WeaponsObject*>(holding);
//Enemy is holding a gun
if (WO->isGun)
{
//Make enemy stay at the same pos
if (b_isDestinationVisible && b_isDestinationWithinFOV && (playerPos - pos).LengthSquared() < d_detectionRange)
{
currentLookat.x = playerPos.x;
currentLookat.z = playerPos.z;
b_SHOOTLA = true;
}
else
{
b_SHOOTLA = false;
if (!b_isDestinationVisible)
{
SensorUpdate2(dt, collisionChecking(pos + L, m_GOList), collisionChecking(pos + C, m_GOList), collisionChecking(pos + R, m_GOList));
}
else
{
moveToDestination(dt);
}
}
}
else
{
if (!b_isDestinationVisible)
{
SensorUpdate2(dt, collisionChecking(pos + L, m_GOList), collisionChecking(pos + C, m_GOList), collisionChecking(pos + R, m_GOList));
}
else
{
moveToDestination(dt);
}
}
}
else
{
if (!b_isDestinationVisible)
{
SensorUpdate2(dt, collisionChecking(pos + L, m_GOList), collisionChecking(pos + C, m_GOList), collisionChecking(pos + R, m_GOList));
}
else
{
moveToDestination(dt);
}
}
}
//Enemy is not holding a weapon
else
{
if (!b_isDestinationVisible)
{
SensorUpdate2(dt, collisionChecking(pos + L, m_GOList), collisionChecking(pos + C, m_GOList), collisionChecking(pos + R, m_GOList));
}
else
{
moveToDestination(dt);
}
}
break;
}
default:
break;
}
}
