78 lines
1.6 KiB
C++
78 lines
1.6 KiB
C++
#include "MapBlock.h"
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int mapBlock[65536];
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MapBlock::MapBlock()
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{
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}
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void BlockManager::addNode(int id, int meta, int x, int y, int z)
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{
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Position2D block = BlockUtilities::getBlockFromNodeCoordinates(x, z);
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int localX = x - block.x * 16;
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int localZ = z - block.z * 16;
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mapBlocks[block.x][block.z].mapBlock[256 * y + localZ * 16 + localX] = id;
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}
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MapBlock mapBlocks[16][16];
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BlockManager::BlockManager()
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{
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}
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int BlockManager::getNodeAt(int x, int y, int z)
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{
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// Math explanation for future reference:
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// The x and z coordinates need to be have block.[AXIS] * 16 subtracted from them
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// so that the coordinates passed to the function are local block coordinates instead
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// of global node coordinates (e.g. 1, and not 17)
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if(x < 0 || y < 0 || z < 0)
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{
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return 0;
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}
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Position2D block = BlockUtilities::getBlockFromNodeCoordinates(x, z);
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int localX = x - block.x * 16;
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int localZ = z - block.z * 16;
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return mapBlocks[block.x][block.z].mapBlock[256 * y + localZ * 16 + localX];
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}
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bool BlockManager::isAir(int x, int y, int z)
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{
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return getNodeAt(x, y, z) == 0;
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}
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bool BlockManager::isNodeClear(int x, int y, int z)
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{
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if(getNodeAt(x, y, z) == 0)
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return true;
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if(getNodeAt(x, y, z) == 20)
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return true;
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return false;
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}
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BlockUtilities::BlockUtilities()
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{
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}
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Position2D BlockUtilities::getBlockFromNodeCoordinates(int x, int z)
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{
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Position2D pos2d;
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//pos2d.x = floor(x / 16);
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//pos2d.z = floor(z / 16);
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pos2d.x = x >> 4;
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pos2d.z = z >> 4;
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return pos2d;
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}
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