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authorTiger Wang <ziwei.tiger@outlook.com>2020-04-16 23:27:04 +0200
committerGitHub <noreply@github.com>2020-04-16 23:27:04 +0200
commitede56a5750a1880107589076a67ba68b78608427 (patch)
tree19f6d727c59b2103cf97aae70903838c65c6f40b /src/Simulator/IncrementalRedstoneSimulator/ObserverHandler.h
parentUsing Super. (diff)
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Diffstat (limited to '')
-rw-r--r--src/Simulator/IncrementalRedstoneSimulator/ObserverHandler.h106
1 files changed, 106 insertions, 0 deletions
diff --git a/src/Simulator/IncrementalRedstoneSimulator/ObserverHandler.h b/src/Simulator/IncrementalRedstoneSimulator/ObserverHandler.h
new file mode 100644
index 000000000..cb5bc74fc
--- /dev/null
+++ b/src/Simulator/IncrementalRedstoneSimulator/ObserverHandler.h
@@ -0,0 +1,106 @@
+
+#pragma once
+
+#include "RedstoneHandler.h"
+#include "../../Blocks/BlockObserver.h"
+
+
+
+
+
+class cObserverHandler : public cRedstoneHandler
+{
+public:
+
+ inline static bool IsOn(NIBBLETYPE a_Meta)
+ {
+ return (a_Meta & 0x8) == 0x8;
+ }
+
+ static bool ShouldPowerOn(cWorld & a_World, const Vector3i a_Position, NIBBLETYPE a_Meta, cIncrementalRedstoneSimulatorChunkData * a_Data)
+ {
+ BLOCKTYPE BlockType;
+ NIBBLETYPE BlockMeta;
+ if (!a_World.GetBlockTypeMeta(a_Position + cBlockObserverHandler::GetObservingFaceOffset(a_Meta), BlockType, BlockMeta))
+ {
+ return false;
+ }
+
+ // Cache the last seen block type and meta in the power data for this position
+ auto Observed = PoweringData(BlockType, BlockMeta);
+ auto Previous = a_Data->ExchangeUpdateOncePowerData(a_Position, Observed);
+
+ // Determine if to signal an update based on the block previously observed changed
+ return (Previous.PoweringBlock != Observed.PoweringBlock) || (Previous.PowerLevel != Observed.PowerLevel);
+ }
+
+ virtual unsigned char GetPowerDeliveredToPosition(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, Vector3i a_QueryPosition, BLOCKTYPE a_QueryBlockType) const override
+ {
+ if (IsOn(a_Meta) && (a_QueryPosition == (a_Position + cBlockObserverHandler::GetSignalOutputOffset(a_Meta))))
+ {
+ return 15;
+ }
+
+ return 0;
+ }
+
+ virtual unsigned char GetPowerLevel(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta) const override
+ {
+ return IsOn(a_BlockType) ? 15 : 0;
+ }
+
+ virtual cVector3iArray Update(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, PoweringData a_PoweringData) const override
+ {
+ // LOGD("Evaluating Lenny the observer (%i %i %i)", a_Position.x, a_Position.y, a_Position.z);
+
+ auto Data = static_cast<cIncrementalRedstoneSimulator *>(a_World.GetRedstoneSimulator())->GetChunkData();
+ auto DelayInfo = Data->GetMechanismDelayInfo(a_Position);
+
+ if (DelayInfo == nullptr)
+ {
+ if (!ShouldPowerOn(a_World, a_Position, a_Meta, Data))
+ {
+ return {};
+ }
+
+ // From rest, we've determined there was a block update
+ // Schedule power-on 1 tick in the future
+ Data->m_MechanismDelays[a_Position] = std::make_pair(1, true);
+
+ return {};
+ }
+
+ int DelayTicks;
+ bool ShouldPowerOn;
+ std::tie(DelayTicks, ShouldPowerOn) = *DelayInfo;
+
+ if (DelayTicks != 0)
+ {
+ return {};
+ }
+
+ if (ShouldPowerOn)
+ {
+ // Remain on for 1 tick before resetting
+ *DelayInfo = std::make_pair(1, false);
+ a_World.SetBlockMeta(a_Position.x, a_Position.y, a_Position.z, a_Meta | 0x8, a_Meta);
+ }
+ else
+ {
+ // We've reset. Erase delay data in preparation for detecting further updates
+ Data->m_MechanismDelays.erase(a_Position);
+ a_World.SetBlockMeta(a_Position.x, a_Position.y, a_Position.z, a_Meta & ~0x8, a_Meta);
+ }
+
+ return { a_Position + cBlockObserverHandler::GetSignalOutputOffset(a_Meta) };
+ }
+
+ virtual cVector3iArray GetValidSourcePositions(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta) const override
+ {
+ UNUSED(a_World);
+ UNUSED(a_Position);
+ UNUSED(a_BlockType);
+ UNUSED(a_BlockType);
+ return {};
+ }
+};