public void GatherResource(ResourceNode resource)
{
if (_isDead)
{
return;
}
if (!canGather)
{
return;
}
if (resource.Equals(GatheringTarget))
{
return;
}
if (GatheringTarget)
{
GatheringTarget.RemoveGatherer(teamId);
}
_enemyUnit = null;
_isGathering = false;
inResourceRange = false;
// Get a Random point around the resource within the gathering radius
// var vector2 = Random.insideUnitCircle.normalized * resource.gatherRadius;
// var destination = resource.transform.position + new Vector3(vector2.x, 0, vector2.y);
var resourcePosition = resource.transform.position;
var randomPosition = Random.insideUnitCircle * resource.gatherRadius;
var destination = resourcePosition + new Vector3(randomPosition.x, 0, randomPosition.y);
NavMesh.SamplePosition(destination, out var hit, 3f, NavMesh.AllAreas);
GatheringTarget = resource;
MoveTo(hit.position, false);
_currentState = UnitState.Gathering;
}
public void MoveTo(Vector3 destination, bool forceChangeState = true)
{
if (_isDead)
{
return;
}
if (forceChangeState)
{
switch (_currentState)
{
case UnitState.Combat:
_enemyUnit = null;
_isAttacking = false;
break;
case UnitState.Gathering:
inResourceRange = false;
_isGathering = false;
GatheringTarget.RemoveGatherer(teamId);
GatheringTarget = null;
break;
case UnitState.Idle:
case UnitState.Moving:
_currentState = UnitState.Moving;
_animator.SetInteger("unitState", 1);
break;
case UnitState.Building:
inBuildingRange = false;
_isBuilding = false;
BuildingTarget.RemoveBuilder();
BuildingTarget = null;
break;
default:
throw new ArgumentOutOfRangeException();
}
_agent.stoppingDistance = 0;
}
_animator.SetInteger("unitState", 1);
_agent.speed = moveSpeed.GetValue();
_agent.SetDestination(destination);
}
public void Attack(Building enemy)
{
if (_isAttacking)
{
return;
}
if (enemy.teamId == teamId)
{
return;
}
switch (_currentState)
{
case UnitState.Gathering:
GatheringTarget.RemoveGatherer(teamId);
_isGathering = false;
GatheringTarget = null;
inResourceRange = false;
break;
case UnitState.Building:
BuildingTarget.RemoveBuilder();
_isBuilding = false;
BuildingTarget = null;
inBuildingRange = false;
break;
case UnitState.Idle:
break;
case UnitState.Moving:
break;
case UnitState.Combat:
break;
default:
throw new ArgumentOutOfRangeException();
}
_enemyUnit = null;
_enemyBuilding = enemy;
_currentState = UnitState.Combat;
_agent.stoppingDistance = attackRadius.GetValue();
}
private void Update()
{
if (_isDead)
{
return;
}
if (Math.Abs(_currentAttackRadius - attackRadius.GetValue()) > 0)
{
_currentAttackRadius = attackRadius.GetValue();
UpdateAttackRange();
}
if (_currentState == UnitState.Moving && _agent.remainingDistance <= 0)
{
_currentState = UnitState.Idle;
_animator.SetInteger("unitState", 0);
}
if (_currentState == UnitState.Moving || _currentState == UnitState.Idle)
{
if (_detectedEnemyUnits.Count > 0)
{
_enemyUnit = _detectedEnemyUnits[0];
_currentState = UnitState.Combat;
}
else if (_detectecEnemyBuildings.Count > 0)
{
_enemyBuilding = _detectecEnemyBuildings[0];
_currentState = UnitState.Combat;
}
}
if (_currentState == UnitState.Combat)
{
if (_agent.remainingDistance >= attackRadius.GetValue())
{
_animator.SetInteger("unitState", 1);
}
if (_enemyUnit)
{
if (_enemyUnit._isDead)
{
_detectedEnemyUnits.Remove(_enemyUnit);
_enemyUnit = null;
_isAttacking = false;
return;
}
var dist = Vector3.Distance(_enemyUnit.transform.position, transform.position);
if (dist <= attackRadius.GetValue())
{
FaceTransform(_enemyUnit.transform);
if (!_isAttacking)
{
_isAttacking = true;
StartCoroutine(AttackTarget());
}
}
else
{
GoToTarget(dist);
}
}
else if (_enemyBuilding)
{
if (_enemyBuilding.IsDead)
{
_detectecEnemyBuildings.Remove(_enemyBuilding);
_enemyBuilding = null;
_isAttacking = false;
return;
}
var dist = Vector3.Distance(_enemyBuilding.transform.position, transform.position);
if (dist <= attackRadius.GetValue())
{
FaceTransform(_enemyBuilding.transform);
if (!_isAttacking)
{
_isAttacking = true;
StartCoroutine(AttackTarget());
}
}
else
{
GoToTarget(dist);
}
}
else
{
_currentState = UnitState.Idle;
_animator.SetInteger("unitState", 0);
}
}
if (_currentState == UnitState.Gathering)
{
if (!GatheringTarget)
{
_isGathering = false;
inResourceRange = false;
_currentState = UnitState.Idle;
_animator.SetInteger("unitState", 0);
}
// Physics.SphereCast(transform.position, _gatheringTarget.gatherRadius, out var hit, gameObject.layer);
else if (inResourceRange)
{
if (!_isGathering && _agent.remainingDistance <= GatheringTarget.gatherRadius)
{
_animator.SetInteger("unitState", 2);
GatheringTarget.AddGatherer(teamId);
_isGathering = true;
}
FaceTransform(GatheringTarget.transform);
}
}
if (_currentState == UnitState.Building)
{
if (!BuildingTarget)
{
_isBuilding = false;
inBuildingRange = false;
_currentState = UnitState.Idle;
_animator.SetInteger("unitState", 0);
}
else if (inBuildingRange)
{
if (!_isBuilding && _agent.remainingDistance <= BuildingTarget.buildingRadius)
{
_animator.SetInteger("unitState", 2);
BuildingTarget.AddBuilder();
_isBuilding = true;
}
FaceTransform(BuildingTarget.transform);
}
}
if (_currentHitPoints < maxHitPoints)
{
if (!_unitHealthBar.gameObject.activeInHierarchy)
{
_unitHealthBar.gameObject.SetActive(true);
}
}
else if (_currentState == UnitState.Idle && !_isSelected)
{
_unitHealthBar.gameObject.SetActive(false);
}
}
