private void UpdateOxygen()
{
if (!MySession.Static.Settings.EnableOxygen)
{
return;
}
// Try to find grids that might contain oxygen
var entities = new List <MyEntity>();
var aabb = PositionComp.WorldAABB;
MyGamePruningStructure.GetAllTopMostEntitiesInBox <MyEntity>(ref aabb, entities);
bool lowOxygenDamage = true;
bool noOxygenDamage = true;
bool isInEnvironment = true;
EnvironmentOxygenLevel = MyOxygenProviderSystem.GetOxygenInPoint(PositionComp.GetPosition());
var cockpit = Parent as MyCockpit;
if (cockpit != null && cockpit.BlockDefinition.IsPressurized)
{
if (Sync.IsServer && MySession.Static.SurvivalMode)
{
if (!Definition.NeedsOxygen && m_suitOxygenAmount > Definition.OxygenConsumption)
{
m_suitOxygenAmount -= Definition.OxygenConsumption;
if (m_suitOxygenAmount < 0f)
{
m_suitOxygenAmount = 0f;
}
}
if (cockpit.OxygenLevel > 0f)
{
if (Definition.NeedsOxygen)
{
if (cockpit.OxygenAmount >= Definition.OxygenConsumption)
{
cockpit.OxygenAmount -= Definition.OxygenConsumption;
noOxygenDamage = false;
lowOxygenDamage = false;
}
}
else
{
float oxygenTransferred = Math.Min(SuitOxygenAmountMissing, cockpit.OxygenAmount);
oxygenTransferred = Math.Min(oxygenTransferred, MyOxygenConstants.OXYGEN_REGEN_PER_SECOND);
cockpit.OxygenAmount -= oxygenTransferred;
SuitOxygenAmount += oxygenTransferred;
noOxygenDamage = false;
lowOxygenDamage = false;
}
}
}
EnvironmentOxygenLevel = cockpit.OxygenLevel;
isInEnvironment = false;
}
else
{
Vector3D pos = PositionComp.WorldMatrix.Translation;
if (m_headBoneIndex != -1)
{
pos = (BoneAbsoluteTransforms[m_headBoneIndex] * WorldMatrix).Translation;
}
foreach (var entity in entities)
{
var grid = entity as MyCubeGrid;
// Oxygen can be present on small grids as well because of mods
if (grid != null)
{
var oxygenBlock = grid.GridSystems.OxygenSystem.GetSafeOxygenBlock(pos);
if (oxygenBlock.Room != null)
{
if (oxygenBlock.Room.OxygenLevel(grid.GridSize) > Definition.PressureLevelForLowDamage)
{
if (Definition.NeedsOxygen)
{
lowOxygenDamage = false;
}
}
if (oxygenBlock.Room.IsPressurized)
{
EnvironmentOxygenLevel = oxygenBlock.Room.OxygenLevel(grid.GridSize);
if (oxygenBlock.Room.OxygenAmount > Definition.OxygenConsumption)
{
if (Definition.NeedsOxygen)
{
noOxygenDamage = false;
oxygenBlock.PreviousOxygenAmount = oxygenBlock.OxygenAmount() - Definition.OxygenConsumption;
oxygenBlock.OxygenChangeTime = MySandboxGame.TotalGamePlayTimeInMilliseconds;
oxygenBlock.Room.OxygenAmount -= Definition.OxygenConsumption;
}
break;
}
}
else
{
EnvironmentOxygenLevel = oxygenBlock.Room.EnvironmentOxygen;
if (EnvironmentOxygenLevel > Definition.OxygenConsumption)
{
if (Definition.NeedsOxygen)
{
noOxygenDamage = false;
}
break;
}
}
isInEnvironment = false;
}
}
}
}
if (MySession.LocalCharacter == this)
{
if (m_oldSuitOxygenLevel >= 0.25f && SuitOxygenLevel < 0.25f)
{
MyHud.Notifications.Add(m_lowOxygenNotification);
}
else if (m_oldSuitOxygenLevel >= 0.05f && SuitOxygenLevel < 0.05f)
{
MyHud.Notifications.Add(m_criticalOxygenNotification);
}
}
m_oldSuitOxygenLevel = SuitOxygenLevel;
// Cannot early exit before calculations because of UI
if (!Sync.IsServer || MySession.Static.CreativeMode)
{
return;
}
//TODO(AF) change this to a constant
//Try to refill the suit from bottles in inventory
if (SuitOxygenLevel < 0.3f && !Definition.NeedsOxygen)
{
var items = Inventory.GetItems();
bool bottlesUsed = false;
foreach (var item in items)
{
var oxygenContainer = item.Content as MyObjectBuilder_OxygenContainerObject;
if (oxygenContainer != null)
{
if (oxygenContainer.OxygenLevel == 0f)
{
continue;
}
var physicalItem = MyDefinitionManager.Static.GetPhysicalItemDefinition(oxygenContainer) as MyOxygenContainerDefinition;
float oxygenAmount = oxygenContainer.OxygenLevel * physicalItem.Capacity;
float transferredAmount = Math.Min(oxygenAmount, SuitOxygenAmountMissing);
oxygenContainer.OxygenLevel = (oxygenAmount - transferredAmount) / physicalItem.Capacity;
if (oxygenContainer.OxygenLevel < 0f)
{
oxygenContainer.OxygenLevel = 0f;
}
if (oxygenContainer.OxygenLevel > 1f)
{
Debug.Fail("Incorrect value");
}
Inventory.UpdateOxygenAmount();
Inventory.SyncOxygenContainerLevel(item.ItemId, oxygenContainer.OxygenLevel);
bottlesUsed = true;
SuitOxygenAmount += transferredAmount;
if (SuitOxygenLevel == 1f)
{
break;
}
}
}
if (bottlesUsed)
{
if (MySession.LocalCharacter == this)
{
ShowRefillFromBottleNotification();
}
else
{
SyncObject.SendRefillFromBottle();
}
}
}
// No oxygen found in room, try to get it from suit
if (noOxygenDamage || lowOxygenDamage)
{
if (!Definition.NeedsOxygen && m_suitOxygenAmount > Definition.OxygenConsumption)
{
m_suitOxygenAmount -= Definition.OxygenConsumption;
if (m_suitOxygenAmount < 0f)
{
m_suitOxygenAmount = 0f;
}
noOxygenDamage = false;
lowOxygenDamage = false;
}
if (isInEnvironment)
{
if (EnvironmentOxygenLevel > Definition.PressureLevelForLowDamage)
{
lowOxygenDamage = false;
}
if (EnvironmentOxygenLevel > 0f)
{
noOxygenDamage = false;
}
}
}
if (noOxygenDamage)
{
DoDamage(Definition.DamageAmountAtZeroPressure, MyDamageType.LowPressure, true);
}
else if (lowOxygenDamage)
{
DoDamage(1f, MyDamageType.Asphyxia, true);
}
SyncObject.UpdateOxygen(SuitOxygenAmount);
}
