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-rw-r--r--src/Simulator/IncrementalRedstoneSimulator.cpp73
1 files changed, 39 insertions, 34 deletions
diff --git a/src/Simulator/IncrementalRedstoneSimulator.cpp b/src/Simulator/IncrementalRedstoneSimulator.cpp
index 08a0f42c6..f12c29211 100644
--- a/src/Simulator/IncrementalRedstoneSimulator.cpp
+++ b/src/Simulator/IncrementalRedstoneSimulator.cpp
@@ -683,11 +683,13 @@ void cIncrementalRedstoneSimulator::HandleRedstoneWire(int a_BlockX, int a_Block
void cIncrementalRedstoneSimulator::HandleRedstoneRepeater(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_MyState)
{
+ // Create a variable holding my meta to avoid multiple lookups.
NIBBLETYPE a_Meta = m_World.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ);
- bool IsOn = ((a_MyState == E_BLOCK_REDSTONE_REPEATER_ON) ? true : false); // Cache if repeater is on.
- bool IsSelfPowered = IsRepeaterPowered(a_BlockX, a_BlockY, a_BlockZ, a_Meta & 0x3); // Cache if repeater is powered.
- bool IsLocked = IsRepeaterLocked(a_BlockX, a_BlockY, a_BlockZ, a_Meta & 0x3); // Cache if repeater is locked.
+ // Do the same for being on, self powered or locked.
+ bool IsOn = (a_MyState == E_BLOCK_REDSTONE_REPEATER_ON);
+ bool IsSelfPowered = IsRepeaterPowered(a_BlockX, a_BlockY, a_BlockZ, a_Meta);
+ bool IsLocked = IsRepeaterLocked(a_BlockX, a_BlockY, a_BlockZ, a_Meta);
if (IsSelfPowered && !IsOn && !IsLocked) // Queue a power change if powered, but not on and not locked.
{
@@ -1151,7 +1153,8 @@ bool cIncrementalRedstoneSimulator::AreCoordsLinkedPowered(int a_BlockX, int a_B
-
+// IsRepeaterPowered tests if a repeater should be powered by testing for power sources behind the repeater.
+// It takes the coordinates of the repeater the the meta value.
bool cIncrementalRedstoneSimulator::IsRepeaterPowered(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_Meta)
{
// Repeaters cannot be powered by any face except their back; verify that this is true for a source
@@ -1160,7 +1163,7 @@ bool cIncrementalRedstoneSimulator::IsRepeaterPowered(int a_BlockX, int a_BlockY
{
if (!itr->a_BlockPos.Equals(Vector3i(a_BlockX, a_BlockY, a_BlockZ))) { continue; }
- switch (a_Meta)
+ switch (a_Meta & 0x3)
{
case 0x0:
{
@@ -1190,7 +1193,7 @@ bool cIncrementalRedstoneSimulator::IsRepeaterPowered(int a_BlockX, int a_BlockY
{
if (!itr->a_BlockPos.Equals(Vector3i(a_BlockX, a_BlockY, a_BlockZ))) { continue; }
- switch (a_Meta)
+ switch (a_Meta & 0x3)
{
case 0x0:
{
@@ -1226,42 +1229,44 @@ bool cIncrementalRedstoneSimulator::IsRepeaterLocked(int a_BlockX, int a_BlockY,
// Change checking direction according to meta rotation.
switch (a_Meta & 0x3) //compare my direction to my neighbor's
{
- // If N/S check E/W <<<<<
- case 0x0:
- case 0x2:
- {
- if (m_World.GetBlock(a_BlockX + 1, a_BlockY, a_BlockZ) == E_BLOCK_REDSTONE_REPEATER_ON) // Is right neighbor a
- {
- NIBBLETYPE otherRepeaterDir = m_World.GetBlockMeta(a_BlockX + 1, a_BlockY, a_BlockZ) & 0x3;
- if (otherRepeaterDir == 0x1) { return true; }
- }
+ // If the repeater is facing one direction, do one thing.
+ case 0x0:
+ case 0x2:
+ {
+ if (m_World.GetBlock(a_BlockX + 1, a_BlockY, a_BlockZ) == E_BLOCK_REDSTONE_REPEATER_ON) // Is right neighbor a
+ {
+ NIBBLETYPE otherRepeaterDir = m_World.GetBlockMeta(a_BlockX + 1, a_BlockY, a_BlockZ) & 0x3;
+ if (otherRepeaterDir == 0x1) { return true; }
+ }
- if (m_World.GetBlock(a_BlockX - 1, a_BlockY, a_BlockZ) == E_BLOCK_REDSTONE_REPEATER_ON)
- {
- NIBBLETYPE otherRepeaterDir = m_World.GetBlockMeta(a_BlockX -1, a_BlockY, a_BlockZ) & 0x3;
- if (otherRepeaterDir == 0x3) { return true; }
- }
+ if (m_World.GetBlock(a_BlockX - 1, a_BlockY, a_BlockZ) == E_BLOCK_REDSTONE_REPEATER_ON)
+ {
+ NIBBLETYPE otherRepeaterDir = m_World.GetBlockMeta(a_BlockX -1, a_BlockY, a_BlockZ) & 0x3;
+ if (otherRepeaterDir == 0x3) { return true; }
+ }
break;
- }
+ }
- // If E/W check N/S
+ // If another, do the other.
case 0x1:
case 0x3:
+ {
+ if (m_World.GetBlock(a_BlockX, a_BlockY, a_BlockZ + 1) == E_BLOCK_REDSTONE_REPEATER_ON)
+ {
+ NIBBLETYPE otherRepeaterDir = m_World.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ + 1) & 0x3;
+ if (otherRepeaterDir == 0x0) { return true; }
+ }
+
+ if (m_World.GetBlock(a_BlockX, a_BlockY, a_BlockZ -1) == E_BLOCK_REDSTONE_REPEATER_ON)
+ {
+ NIBBLETYPE otherRepeaterDir = m_World.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ - 1) & 0x3;
+ if (otherRepeaterDir == 0x2) { return true; }
+ }
- if (m_World.GetBlock(a_BlockX, a_BlockY, a_BlockZ + 1) == E_BLOCK_REDSTONE_REPEATER_ON)
- {
- NIBBLETYPE otherRepeaterDir = m_World.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ + 1) & 0x3;
- if (otherRepeaterDir == 0x0) { return true; }
- }
-
- if (m_World.GetBlock(a_BlockX, a_BlockY, a_BlockZ -1) == E_BLOCK_REDSTONE_REPEATER_ON)
- {
- NIBBLETYPE otherRepeaterDir = m_World.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ - 1) & 0x3;
- if (otherRepeaterDir == 0x2) { return true; }
- }
- break;
+ break;
+ }
}
return false;