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authorAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
committerAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
commit675b4aa878f16291ce33fced48a2bc7425f635ae (patch)
tree409914df27a98f65adf866da669429c4de141b6f /src/ItemGrid.cpp
parentLineBlockTracer: Using the coord-based block faces. (diff)
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Diffstat (limited to 'src/ItemGrid.cpp')
-rw-r--r--src/ItemGrid.cpp665
1 files changed, 665 insertions, 0 deletions
diff --git a/src/ItemGrid.cpp b/src/ItemGrid.cpp
new file mode 100644
index 000000000..e9b86173e
--- /dev/null
+++ b/src/ItemGrid.cpp
@@ -0,0 +1,665 @@
+
+// ItemGrid.cpp
+
+// Implements the cItemGrid class representing a storage for items in a XY grid (chests, dispensers, inventory etc.)
+
+#include "Globals.h"
+#include "ItemGrid.h"
+#include "Items/ItemHandler.h"
+#include "Noise.h"
+
+
+
+
+
+cItemGrid::cItemGrid(int a_Width, int a_Height) :
+ m_Width(a_Width),
+ m_Height(a_Height),
+ m_NumSlots(a_Width * a_Height),
+ m_Slots(new cItem[a_Width * a_Height]),
+ m_IsInTriggerListeners(false)
+{
+}
+
+
+
+
+
+cItemGrid::~cItemGrid()
+{
+ delete[] m_Slots;
+}
+
+
+
+
+
+int cItemGrid::GetSlotNum(int a_X, int a_Y) const
+{
+ if (
+ (a_X < 0) || (a_X >= m_Width) ||
+ (a_Y < 0) || (a_Y >= m_Height)
+ )
+ {
+ LOGWARNING("%s: coords out of range: (%d, %d) in grid of size (%d, %d)",
+ __FUNCTION__, a_X, a_Y, m_Width, m_Height
+ );
+ return -1;
+ }
+ return a_X + m_Width * a_Y;
+}
+
+
+
+
+
+void cItemGrid::GetSlotCoords(int a_SlotNum, int & a_X, int & a_Y) const
+{
+ if ((a_SlotNum < 0) || (a_SlotNum >= m_NumSlots))
+ {
+ LOGWARNING("%s: SlotNum out of range: %d in grid of range %d",
+ __FUNCTION__, a_SlotNum, m_NumSlots
+ );
+ a_X = -1;
+ a_Y = -1;
+ return;
+ }
+ a_X = a_SlotNum % m_Width;
+ a_Y = a_SlotNum / m_Width;
+}
+
+
+
+
+
+const cItem & cItemGrid::GetSlot(int a_X, int a_Y) const
+{
+ return GetSlot(GetSlotNum(a_X, a_Y));
+}
+
+
+
+
+
+const cItem & cItemGrid::GetSlot(int a_SlotNum) const
+{
+ if ((a_SlotNum < 0) || (a_SlotNum >= m_NumSlots))
+ {
+ LOGWARNING("%s: Invalid slot number, %d out of %d slots",
+ __FUNCTION__, a_SlotNum, m_NumSlots
+ );
+ return m_Slots[0];
+ }
+ return m_Slots[a_SlotNum];
+}
+
+
+
+
+
+void cItemGrid::SetSlot(int a_X, int a_Y, const cItem & a_Item)
+{
+ SetSlot(GetSlotNum(a_X, a_Y), a_Item);
+}
+
+
+
+
+
+void cItemGrid::SetSlot(int a_X, int a_Y, short a_ItemType, char a_ItemCount, short a_ItemDamage)
+{
+ SetSlot(GetSlotNum(a_X, a_Y), cItem(a_ItemType, a_ItemCount, a_ItemDamage));
+}
+
+
+
+
+
+void cItemGrid::SetSlot(int a_SlotNum, const cItem & a_Item)
+{
+ if ((a_SlotNum < 0) || (a_SlotNum >= m_NumSlots))
+ {
+ LOGWARNING("%s: Invalid slot number %d out of %d slots",
+ __FUNCTION__, a_SlotNum, m_NumSlots
+ );
+ return;
+ }
+ m_Slots[a_SlotNum] = a_Item;
+ TriggerListeners(a_SlotNum);
+}
+
+
+
+
+
+void cItemGrid::SetSlot(int a_SlotNum, short a_ItemType, char a_ItemCount, short a_ItemDamage)
+{
+ SetSlot(a_SlotNum, cItem(a_ItemType, a_ItemCount, a_ItemDamage));
+}
+
+
+
+
+
+void cItemGrid::EmptySlot(int a_X, int a_Y)
+{
+ EmptySlot(GetSlotNum(a_X, a_Y));
+}
+
+
+
+
+
+void cItemGrid::EmptySlot(int a_SlotNum)
+{
+ if ((a_SlotNum < 0) || (a_SlotNum >= m_NumSlots))
+ {
+ LOGWARNING("%s: Invalid slot number %d out of %d slots",
+ __FUNCTION__, a_SlotNum, m_NumSlots
+ );
+ return;
+ }
+
+ // Check if already empty:
+ if (m_Slots[a_SlotNum].IsEmpty())
+ {
+ return;
+ }
+
+ // Empty and notify
+ m_Slots[a_SlotNum].Empty();
+ TriggerListeners(a_SlotNum);
+}
+
+
+
+
+
+bool cItemGrid::IsSlotEmpty(int a_SlotNum) const
+{
+ if ((a_SlotNum < 0) || (a_SlotNum >= m_NumSlots))
+ {
+ LOGWARNING("%s: Invalid slot number %d out of %d slots",
+ __FUNCTION__, a_SlotNum, m_NumSlots
+ );
+ return true;
+ }
+ return m_Slots[a_SlotNum].IsEmpty();
+}
+
+
+
+
+
+bool cItemGrid::IsSlotEmpty(int a_X, int a_Y) const
+{
+ return IsSlotEmpty(GetSlotNum(a_X, a_Y));
+}
+
+
+
+
+
+void cItemGrid::Clear(void)
+{
+ for (int i = 0; i < m_NumSlots; i++)
+ {
+ m_Slots[i].Empty();
+ TriggerListeners(i);
+ }
+}
+
+
+
+
+
+int cItemGrid::HowManyCanFit(const cItem & a_ItemStack, bool a_AllowNewStacks)
+{
+ char NumLeft = a_ItemStack.m_ItemCount;
+ int MaxStack = ItemHandler(a_ItemStack.m_ItemType)->GetMaxStackSize();
+ for (int i = m_NumSlots - 1; i >= 0; i--)
+ {
+ if (m_Slots[i].IsEmpty())
+ {
+ if (a_AllowNewStacks)
+ {
+ NumLeft -= MaxStack;
+ }
+ }
+ else if (m_Slots[i].IsStackableWith(a_ItemStack))
+ {
+ NumLeft -= MaxStack - m_Slots[i].m_ItemCount;
+ }
+ if (NumLeft <= 0)
+ {
+ // All items fit
+ return a_ItemStack.m_ItemCount;
+ }
+ } // for i - m_Slots[]
+ return a_ItemStack.m_ItemCount - NumLeft;
+}
+
+
+
+
+
+int cItemGrid::AddItemToSlot(const cItem & a_ItemStack, int a_Slot, int a_Num, int a_MaxStack)
+{
+ int PrevCount = 0;
+ if (m_Slots[a_Slot].IsEmpty())
+ {
+ m_Slots[a_Slot] = a_ItemStack;
+ PrevCount = 0;
+ }
+ else
+ {
+ PrevCount = m_Slots[a_Slot].m_ItemCount;
+ }
+ m_Slots[a_Slot].m_ItemCount = std::min(a_MaxStack, PrevCount + a_Num);
+ int toReturn = m_Slots[a_Slot].m_ItemCount - PrevCount;
+ TriggerListeners(a_Slot);
+ return toReturn;
+}
+
+
+
+
+
+int cItemGrid::AddItem(cItem & a_ItemStack, bool a_AllowNewStacks, int a_PrioritarySlot)
+{
+ int NumLeft = a_ItemStack.m_ItemCount;
+ int MaxStack = ItemHandler(a_ItemStack.m_ItemType)->GetMaxStackSize();
+
+ // Try prioritarySlot first:
+ if (
+ (a_PrioritarySlot != -1) &&
+ (
+ m_Slots[a_PrioritarySlot].IsEmpty() ||
+ m_Slots[a_PrioritarySlot].IsStackableWith(a_ItemStack)
+ )
+ )
+ {
+ NumLeft -= AddItemToSlot(a_ItemStack, a_PrioritarySlot, NumLeft, MaxStack);
+ }
+
+ // Scan existing stacks:
+ for (int i = m_NumSlots - 1; i >= 0; i--)
+ {
+ if (m_Slots[i].IsStackableWith(a_ItemStack))
+ {
+ NumLeft -= AddItemToSlot(a_ItemStack, i, NumLeft, MaxStack);
+ }
+ if (NumLeft <= 0)
+ {
+ // All items fit
+ return a_ItemStack.m_ItemCount;
+ }
+ } // for i - m_Slots[]
+
+ if (!a_AllowNewStacks)
+ {
+ return (a_ItemStack.m_ItemCount - NumLeft);
+ }
+
+ for (int i = m_NumSlots - 1; i >= 0; i--)
+ {
+ if (m_Slots[i].IsEmpty())
+ {
+ NumLeft -= AddItemToSlot(a_ItemStack, i, NumLeft, MaxStack);
+ }
+ if (NumLeft <= 0)
+ {
+ // All items fit
+ return a_ItemStack.m_ItemCount;
+ }
+ } // for i - m_Slots[]
+ return (a_ItemStack.m_ItemCount - NumLeft);
+}
+
+
+
+
+
+int cItemGrid::AddItems(cItems & a_ItemStackList, bool a_AllowNewStacks, int a_PrioritarySlot)
+{
+ int TotalAdded = 0;
+ for (cItems::iterator itr = a_ItemStackList.begin(); itr != a_ItemStackList.end();)
+ {
+ int NumAdded = AddItem(*itr, a_AllowNewStacks, a_PrioritarySlot);
+ if (itr->m_ItemCount == NumAdded)
+ {
+ itr = a_ItemStackList.erase(itr);
+ }
+ else
+ {
+ itr->m_ItemCount -= NumAdded;
+ ++itr;
+ }
+ TotalAdded += NumAdded;
+ }
+ return TotalAdded;
+}
+
+
+
+
+
+int cItemGrid::ChangeSlotCount(int a_SlotNum, int a_AddToCount)
+{
+ if ((a_SlotNum < 0) || (a_SlotNum >= m_NumSlots))
+ {
+ LOGWARNING("%s: Invalid slot number %d out of %d slots, ignoring the call, returning -1",
+ __FUNCTION__, a_SlotNum, m_NumSlots
+ );
+ return -1;
+ }
+
+ if (m_Slots[a_SlotNum].IsEmpty())
+ {
+ // The item is empty, it's not gonna change
+ return 0;
+ }
+
+ if (m_Slots[a_SlotNum].m_ItemCount <= -a_AddToCount)
+ {
+ // Trying to remove more items than there already are, make the item empty
+ m_Slots[a_SlotNum].Empty();
+ TriggerListeners(a_SlotNum);
+ return 0;
+ }
+
+ m_Slots[a_SlotNum].m_ItemCount += a_AddToCount;
+ TriggerListeners(a_SlotNum);
+ return m_Slots[a_SlotNum].m_ItemCount;
+}
+
+
+
+
+
+int cItemGrid::ChangeSlotCount(int a_X, int a_Y, int a_AddToCount)
+{
+ return ChangeSlotCount(GetSlotNum(a_X, a_Y), a_AddToCount);
+}
+
+
+
+
+
+cItem cItemGrid::RemoveOneItem(int a_SlotNum)
+{
+ if ((a_SlotNum < 0) || (a_SlotNum >= m_NumSlots))
+ {
+ LOGWARNING("%s: Invalid slot number %d out of %d slots, ignoring the call, returning empty item",
+ __FUNCTION__, a_SlotNum, m_NumSlots
+ );
+ return cItem();
+ }
+
+ // If the slot is empty, return an empty item
+ if (m_Slots[a_SlotNum].IsEmpty())
+ {
+ return cItem();
+ }
+
+ // Make a copy of the item in slot, set count to 1 and remove one from the slot
+ cItem res = m_Slots[a_SlotNum];
+ res.m_ItemCount = 1;
+ m_Slots[a_SlotNum].m_ItemCount -= 1;
+
+ // Emptying the slot correctly if appropriate
+ if (m_Slots[a_SlotNum].m_ItemCount == 0)
+ {
+ m_Slots[a_SlotNum].Empty();
+ }
+
+ // Notify everyone of the change
+ TriggerListeners(a_SlotNum);
+
+ // Return the stored one item
+ return res;
+}
+
+
+
+
+
+cItem cItemGrid::RemoveOneItem(int a_X, int a_Y)
+{
+ return RemoveOneItem(GetSlotNum(a_X, a_Y));
+}
+
+
+
+
+
+int cItemGrid::HowManyItems(const cItem & a_Item)
+{
+ int res = 0;
+ for (int i = 0; i < m_NumSlots; i++)
+ {
+ if (m_Slots[i].IsStackableWith(a_Item))
+ {
+ res += m_Slots[i].m_ItemCount;
+ }
+ }
+ return res;
+}
+
+
+
+
+
+bool cItemGrid::HasItems(const cItem & a_ItemStack)
+{
+ int CurrentlyHave = HowManyItems(a_ItemStack);
+ return (CurrentlyHave >= a_ItemStack.m_ItemCount);
+}
+
+
+
+
+
+int cItemGrid::GetFirstEmptySlot(void) const
+{
+ return GetNextEmptySlot(-1);
+}
+
+
+
+
+
+int cItemGrid::GetFirstUsedSlot(void) const
+{
+ return GetNextUsedSlot(-1);
+}
+
+
+
+
+
+int cItemGrid::GetLastEmptySlot(void) const
+{
+ for (int i = m_NumSlots - 1; i >= 0; i--)
+ {
+ if (m_Slots[i].IsEmpty())
+ {
+ return i;
+ }
+ }
+ return -1;
+}
+
+
+
+
+
+int cItemGrid::GetLastUsedSlot(void) const
+{
+ for (int i = m_NumSlots - 1; i >= 0; i--)
+ {
+ if (!m_Slots[i].IsEmpty())
+ {
+ return i;
+ }
+ }
+ return -1;
+}
+
+
+
+
+
+int cItemGrid::GetNextEmptySlot(int a_StartFrom) const
+{
+ for (int i = a_StartFrom + 1; i < m_NumSlots; i++)
+ {
+ if (m_Slots[i].IsEmpty())
+ {
+ return i;
+ }
+ }
+ return -1;
+}
+
+
+
+
+
+int cItemGrid::GetNextUsedSlot(int a_StartFrom) const
+{
+ for (int i = a_StartFrom + 1; i < m_NumSlots; i++)
+ {
+ if (!m_Slots[i].IsEmpty())
+ {
+ return i;
+ }
+ }
+ return -1;
+}
+
+
+
+
+
+void cItemGrid::CopyToItems(cItems & a_Items) const
+{
+ for (int i = 0; i < m_NumSlots; i++)
+ {
+ if (!m_Slots[i].IsEmpty())
+ {
+ a_Items.push_back(m_Slots[i]);
+ }
+ } // for i - m_Slots[]
+}
+
+
+
+
+
+bool cItemGrid::DamageItem(int a_SlotNum, short a_Amount)
+{
+ if ((a_SlotNum < 0) || (a_SlotNum >= m_NumSlots))
+ {
+ LOGWARNING("%s: invalid slot number %d out of %d slots, ignoring.", __FUNCTION__, a_SlotNum, m_NumSlots);
+ return false;
+ }
+ return m_Slots[a_SlotNum].DamageItem(a_Amount);
+}
+
+
+
+
+
+bool cItemGrid::DamageItem(int a_X, int a_Y, short a_Amount)
+{
+ return DamageItem(GetSlotNum(a_X, a_Y), a_Amount);
+}
+
+
+
+
+
+void cItemGrid::GenerateRandomLootWithBooks(const cLootProbab * a_LootProbabs, int a_CountLootProbabs, int a_NumSlots, int a_Seed)
+{
+ // Calculate the total weight:
+ int TotalProbab = 1;
+ for (int i = 0; i < a_CountLootProbabs; i++)
+ {
+ TotalProbab += a_LootProbabs[i].m_Weight;
+ }
+
+ // Pick the loot items:
+ cNoise Noise(a_Seed);
+ for (int i = 0; i < a_NumSlots; i++)
+ {
+ int Rnd = (Noise.IntNoise1DInt(i) / 7);
+ int LootRnd = Rnd % TotalProbab;
+ Rnd >>= 8;
+ cItem CurrentLoot = cItem(E_ITEM_BOOK, 1, 0); // TODO: enchantment
+ for (int j = 0; j < a_CountLootProbabs; j++)
+ {
+ LootRnd -= a_LootProbabs[i].m_Weight;
+ if (LootRnd < 0)
+ {
+ CurrentLoot = a_LootProbabs[i].m_Item;
+ CurrentLoot.m_ItemCount = a_LootProbabs[i].m_MinAmount + (Rnd % (a_LootProbabs[i].m_MaxAmount - a_LootProbabs[i].m_MinAmount));
+ Rnd >>= 8;
+ break;
+ }
+ } // for j - a_LootProbabs[]
+ SetSlot(Rnd % m_NumSlots, CurrentLoot);
+ } // for i - NumSlots
+}
+
+
+
+
+
+void cItemGrid::AddListener(cListener & a_Listener)
+{
+ cCSLock Lock(m_CSListeners);
+ ASSERT(!m_IsInTriggerListeners); // Must not call this while in TriggerListeners()
+ m_Listeners.push_back(&a_Listener);
+}
+
+
+
+
+
+void cItemGrid::RemoveListener(cListener & a_Listener)
+{
+ cCSLock Lock(m_CSListeners);
+ ASSERT(!m_IsInTriggerListeners); // Must not call this while in TriggerListeners()
+ for (cListeners::iterator itr = m_Listeners.begin(), end = m_Listeners.end(); itr != end; ++itr)
+ {
+ if (*itr == &a_Listener)
+ {
+ m_Listeners.erase(itr);
+ return;
+ }
+ } // for itr - m_Listeners[]
+}
+
+
+
+
+
+void cItemGrid::TriggerListeners(int a_SlotNum)
+{
+ cListeners Listeners;
+ {
+ cCSLock Lock(m_CSListeners);
+ m_IsInTriggerListeners = true;
+ Listeners = m_Listeners;
+ }
+ for (cListeners::iterator itr = Listeners.begin(), end = Listeners.end(); itr != end; ++itr)
+ {
+ (*itr)->OnSlotChanged(this, a_SlotNum);
+ } // for itr - m_Listeners[]
+ m_IsInTriggerListeners = false;
+}
+
+
+
+