114 lines
2.5 KiB
C++
114 lines
2.5 KiB
C++
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#pragma once
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#include "ItemHandler.h"
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#include "../Entities/Player.h"
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#include "../LineBlockTracer.h"
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class cItemLilypadHandler:
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public cItemHandler
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{
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using Super = cItemHandler;
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public:
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cItemLilypadHandler(int a_ItemType):
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Super(a_ItemType)
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{
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}
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virtual bool IsPlaceable(void) override
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{
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return false; // Set as not placeable so OnItemUse is called
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}
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virtual bool OnItemUse(
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cWorld * a_World,
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cPlayer * a_Player,
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cBlockPluginInterface & a_PluginInterface,
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const cItem & a_HeldItem,
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const Vector3i a_ClickedBlockPos,
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eBlockFace a_ClickedBlockFace
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) override
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{
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if (a_ClickedBlockFace > BLOCK_FACE_NONE)
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{
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// Clicked on a face of a submerged block; vanilla allows placement, so should we
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auto PlacePos = AddFaceDirection(a_ClickedBlockPos, a_ClickedBlockFace);
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a_World->SetBlock(PlacePos, E_BLOCK_LILY_PAD, 0);
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if (!a_Player->IsGameModeCreative())
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{
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a_Player->GetInventory().RemoveOneEquippedItem();
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}
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return true;
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}
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class cCallbacks:
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public cBlockTracer::cCallbacks
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{
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public:
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cCallbacks():
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m_HasHitFluid(false)
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{
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}
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virtual bool OnNextBlock(int a_CBBlockX, int a_CBBlockY, int a_CBBlockZ, BLOCKTYPE a_CBBlockType, NIBBLETYPE a_CBBlockMeta, eBlockFace a_CBEntryFace) override
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{
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if (IsBlockWater(a_CBBlockType))
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{
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if ((a_CBBlockMeta != 0) || (a_CBEntryFace == BLOCK_FACE_NONE)) // The hit block should be a source. The FACE_NONE check is clicking whilst submerged
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{
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return false;
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}
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AddFaceDirection(a_CBBlockX, a_CBBlockY, a_CBBlockZ, BLOCK_FACE_YP); // Always place pad at top of water block
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if (
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!IsBlockWater(a_CBBlockType) &&
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cBlockInfo::FullyOccupiesVoxel(a_CBBlockType)
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)
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{
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// Can't place lilypad on air / in another block!
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return true;
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}
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m_HasHitFluid = true;
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m_Pos.Set(a_CBBlockX, a_CBBlockY, a_CBBlockZ);
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return true;
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}
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return false;
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}
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Vector3i m_Pos;
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bool m_HasHitFluid;
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} Callbacks;
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auto Start = a_Player->GetEyePosition() + a_Player->GetLookVector();
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auto End = a_Player->GetEyePosition() + a_Player->GetLookVector() * 5;
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cLineBlockTracer::Trace(*a_Player->GetWorld(), Callbacks, Start.x, Start.y, Start.z, End.x, End.y, End.z);
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if (Callbacks.m_HasHitFluid)
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{
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a_World->SetBlock(Callbacks.m_Pos, E_BLOCK_LILY_PAD, 0);
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if (!a_Player->IsGameModeCreative())
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{
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a_Player->GetInventory().RemoveOneEquippedItem();
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}
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return true;
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}
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return false;
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}
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};
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