/**
* Attempts to add the essentia to the cell
*
* @param aspect
* @param Amount
* @return Amount not stored
*/
private long addEssentiaToCell(final Aspect aspect, final long amount, final Actionable mode) {
// Calculate amount to store
long amountToStore = Math.min(amount, this.totalEssentiaStorage - this.usedEssentiaStorage);
// Ensure we can store any
if (amountToStore == 0) {
// Cell is full
return amount;
}
// Get the slot for this aspect
int slotIndex = this.getSlotFor(aspect);
// Ensure there is somewhere to put the essentia
if (slotIndex == -1) {
return amount;
}
// Are we modulating?
if (mode == Actionable.MODULATE) {
// Get the slot
AspectStack stackToAddTo = this.storedEssentia[slotIndex];
// Is the slot null?
if (stackToAddTo == null) {
// Create the stack
stackToAddTo = new AspectStack(aspect, 0);
// Store it
this.storedEssentia[slotIndex] = stackToAddTo;
}
// Add to the stack
stackToAddTo.stackSize += amountToStore;
// Adjust the used amount
this.usedEssentiaStorage += amountToStore;
// Write the changes to the data tag
this.writeStorageChanges(slotIndex, stackToAddTo);
}
// Return the amount we could not store
return (amount - amountToStore);
}
/**
* Attempts to extract essentia from the cell.
*
* @param aspect
* @param amount
* @param mode
* @return Amount extracted.
*/
private long extractEssentiaFromCell(
final Aspect aspect, final long amount, final Actionable mode) {
// Do we have this essentia stored?
int slotIndex = this.getSlotFor(aspect);
if ((slotIndex == -1) || (this.storedEssentia[slotIndex] == null)) {
// Not stored.
return 0;
}
// Get the slot
AspectStack slotToExtractFrom = this.storedEssentia[slotIndex];
// Calculate the amount to extract
long amountToExtract = Math.min(slotToExtractFrom.stackSize, amount);
// Are we modulating?
if (mode == Actionable.MODULATE) {
// Extract from the slot
slotToExtractFrom.stackSize -= amountToExtract;
// Is the slot now empty?
if (slotToExtractFrom.stackSize == 0) {
// Null it
slotToExtractFrom = null;
// Update the storage
this.storedEssentia[slotIndex] = null;
}
// Adjust the used amount
this.usedEssentiaStorage -= amountToExtract;
// Sync the data tag
this.writeStorageChanges(slotIndex, slotToExtractFrom);
}
return amountToExtract;
}