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cuberite-2a/src/Map.cpp

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// Map.cpp
#include "Globals.h"
#include "Map.h"
#include "ClientHandle.h"
#include "World.h"
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#include "Chunk.h"
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#include "Entities/Player.h"
#include "FastRandom.h"
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cMapDecorator::cMapDecorator(cMap * a_Map, eType a_Type, int a_X, int a_Z, int a_Rot)
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: m_Map(a_Map)
, m_Type(a_Type)
, m_PixelX(a_X)
, m_PixelZ(a_Z)
, m_Rot(a_Rot)
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, m_Player(nullptr)
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{
}
cMapDecorator::cMapDecorator(cMap * a_Map, cPlayer * a_Player)
: m_Map(a_Map)
, m_Type(E_TYPE_PLAYER)
, m_Player(a_Player)
{
Update();
}
void cMapDecorator::Update(void)
{
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if (m_Player != nullptr)
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{
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ASSERT(m_Map != nullptr);
unsigned int PixelWidth = m_Map->GetPixelWidth();
int InsideWidth = (m_Map->GetWidth() / 2) - 1;
int InsideHeight = (m_Map->GetHeight() / 2) - 1;
int PixelX = (int) (m_Player->GetPosX() - m_Map->GetCenterX()) / PixelWidth;
int PixelZ = (int) (m_Player->GetPosZ() - m_Map->GetCenterZ()) / PixelWidth;
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// Center of pixel
m_PixelX = (2 * PixelX) + 1;
m_PixelZ = (2 * PixelZ) + 1;
if ((PixelX > -InsideWidth) && (PixelX <= InsideWidth) && (PixelZ > -InsideHeight) && (PixelZ <= InsideHeight))
{
double Yaw = m_Player->GetYaw();
if (m_Map->GetDimension() == dimNether)
{
cFastRandom Random;
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Int64 WorldAge = m_Player->GetWorld()->GetWorldAge();
// TODO 2014-02-19 xdot: Refine
m_Rot = Random.NextInt(16, (int) WorldAge);
}
else
{
m_Rot = (int) (Yaw * 16) / 360;
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}
m_Type = E_TYPE_PLAYER;
}
else
{
if ((abs(PixelX) > 320.0) || (abs(PixelZ) > 320.0))
{
// TODO 2014-02-18 xdot: Remove decorator
}
m_Rot = 0;
m_Type = E_TYPE_PLAYER_OUTSIDE;
// Move to border
if (PixelX <= -InsideWidth)
{
m_PixelX = (2 * -InsideWidth) + 1;
}
if (PixelZ <= -InsideHeight)
{
m_PixelZ = (2 * -InsideHeight) + 1;
}
if (PixelX > InsideWidth)
{
m_PixelX = (2 * InsideWidth) + 1;
}
if (PixelZ > InsideHeight)
{
m_PixelZ = (2 * InsideHeight) + 1;
}
}
}
}
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cMap::cMap(unsigned int a_ID, cWorld * a_World)
: m_ID(a_ID)
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, m_Width(cChunkDef::Width * 8)
, m_Height(cChunkDef::Width * 8)
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, m_Scale(3)
, m_CenterX(0)
, m_CenterZ(0)
, m_World(a_World)
{
m_Data.assign(m_Width * m_Height, E_BASE_COLOR_TRANSPARENT);
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Printf(m_Name, "map_%i", m_ID);
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}
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cMap::cMap(unsigned int a_ID, int a_CenterX, int a_CenterZ, cWorld * a_World, unsigned int a_Scale)
: m_ID(a_ID)
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, m_Width(cChunkDef::Width * 8)
, m_Height(cChunkDef::Width * 8)
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, m_Scale(a_Scale)
, m_CenterX(a_CenterX)
, m_CenterZ(a_CenterZ)
, m_World(a_World)
{
m_Data.assign(m_Width * m_Height, E_BASE_COLOR_TRANSPARENT);
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Printf(m_Name, "map_%i", m_ID);
}
void cMap::UpdateRadius(int a_PixelX, int a_PixelZ, unsigned int a_Radius)
{
int PixelRadius = a_Radius / GetPixelWidth();
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unsigned int StartX = Clamp(a_PixelX - PixelRadius, 0, (int)m_Width);
unsigned int StartZ = Clamp(a_PixelZ - PixelRadius, 0, (int)m_Height);
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unsigned int EndX = Clamp(a_PixelX + PixelRadius, 0, (int)m_Width);
unsigned int EndZ = Clamp(a_PixelZ + PixelRadius, 0, (int)m_Height);
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for (unsigned int X = StartX; X < EndX; ++X)
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{
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for (unsigned int Z = StartZ; Z < EndZ; ++Z)
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{
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int dX = X - a_PixelX;
int dZ = Z - a_PixelZ;
if ((dX * dX) + (dZ * dZ) < (PixelRadius * PixelRadius))
{
UpdatePixel(X, Z);
}
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}
}
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}
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void cMap::UpdateRadius(cPlayer & a_Player, unsigned int a_Radius)
{
unsigned int PixelWidth = GetPixelWidth();
int PixelX = (int) (a_Player.GetPosX() - m_CenterX) / PixelWidth + (m_Width / 2);
int PixelZ = (int) (a_Player.GetPosZ() - m_CenterZ) / PixelWidth + (m_Height / 2);
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UpdateRadius(PixelX, PixelZ, a_Radius);
}
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bool cMap::UpdatePixel(unsigned int a_X, unsigned int a_Z)
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{
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unsigned int PixelWidth = GetPixelWidth();
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int BlockX = m_CenterX + ((a_X - (m_Width / 2)) * PixelWidth);
int BlockZ = m_CenterZ + ((a_Z - (m_Height / 2)) * PixelWidth);
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int ChunkX, ChunkZ;
cChunkDef::BlockToChunk(BlockX, BlockZ, ChunkX, ChunkZ);
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int RelX = BlockX - (ChunkX * cChunkDef::Width);
int RelZ = BlockZ - (ChunkZ * cChunkDef::Width);
class cCalculatePixelCb :
public cChunkCallback
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{
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cMap * m_Map;
int m_RelX, m_RelZ;
ColorID m_PixelData;
public:
cCalculatePixelCb(cMap * a_Map, int a_RelX, int a_RelZ)
: m_Map(a_Map), m_RelX(a_RelX), m_RelZ(a_RelZ), m_PixelData(E_BASE_COLOR_TRANSPARENT) {}
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virtual bool Item(cChunk * a_Chunk) override
{
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if (a_Chunk == nullptr)
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{
return false;
}
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unsigned int PixelWidth = m_Map->GetPixelWidth();
if (m_Map->GetDimension() == dimNether)
{
// TODO 2014-02-22 xdot: Nether maps
return false;
}
typedef std::map<ColorID, unsigned int> ColorCountMap;
ColorCountMap ColorCounts;
// Count surface blocks
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for (unsigned int X = m_RelX; X < m_RelX + PixelWidth; ++X)
{
for (unsigned int Z = m_RelZ; Z < m_RelZ + PixelWidth; ++Z)
{
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// unsigned int WaterDepth = 0;
BLOCKTYPE TargetBlock = E_BLOCK_AIR;
NIBBLETYPE TargetMeta = 0;
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int Height = a_Chunk->GetHeight(X, Z);
while (Height > 0)
{
a_Chunk->GetBlockTypeMeta(X, Height, Z, TargetBlock, TargetMeta);
// TODO 2014-02-22 xdot: Check if block color is transparent
if (TargetBlock == E_BLOCK_AIR)
{
--Height;
continue;
}
// TODO 2014-02-22 xdot: Check if block is liquid
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/*
else if (false)
{
--Height;
++WaterDepth;
continue;
}
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*/
break;
}
// TODO 2014-02-22 xdot: Query block color
ColorID Color = E_BASE_COLOR_BROWN;
// Debug - Temporary
switch (TargetBlock)
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{
case E_BLOCK_GRASS:
{
Color = E_BASE_COLOR_LIGHT_GREEN; break;
}
case E_BLOCK_STATIONARY_WATER:
case E_BLOCK_WATER:
{
Color = E_BASE_COLOR_BLUE; break;
}
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}
++ColorCounts[Color];
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}
}
// Find dominant color
ColorID PixelColor = E_BASE_COLOR_TRANSPARENT;
unsigned int MaxCount = 0;
for (ColorCountMap::iterator it = ColorCounts.begin(); it != ColorCounts.end(); ++it)
{
if (it->second > MaxCount)
{
PixelColor = it->first;
MaxCount = it->second;
}
}
// TODO 2014-02-22 xdot: Adjust brightness
unsigned int dColor = 1;
m_PixelData = PixelColor + dColor;
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return false;
}
ColorID GetPixelData(void) const
{
return m_PixelData;
}
} CalculatePixelCb(this, RelX, RelZ);
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ASSERT(m_World != nullptr);
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m_World->DoWithChunk(ChunkX, ChunkZ, CalculatePixelCb);
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SetPixel(a_X, a_Z, CalculatePixelCb.GetPixelData());
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return true;
}
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void cMap::UpdateDecorators(void)
{
for (cMapDecoratorList::iterator it = m_Decorators.begin(); it != m_Decorators.end(); ++it)
{
it->Update();
}
}
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void cMap::AddPlayer(cPlayer * a_Player, Int64 a_WorldAge)
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{
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cClientHandle * Handle = a_Player->GetClientHandle();
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if (Handle == nullptr)
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{
return;
}
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cMapClient MapClient;
MapClient.m_LastUpdate = a_WorldAge;
MapClient.m_SendInfo = true;
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MapClient.m_Handle = Handle;
MapClient.m_DataUpdate = 0;
MapClient.m_NextDecoratorUpdate = 0;
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m_Clients.push_back(MapClient);
cMapDecorator PlayerDecorator(this, a_Player);
m_Decorators.push_back(PlayerDecorator);
}
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void cMap::RemoveInactiveClients(Int64 a_WorldAge)
{
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for (cMapClientList::iterator it = m_Clients.begin(); it != m_Clients.end();)
{
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if (it->m_LastUpdate < a_WorldAge)
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{
// Remove associated decorators
for (cMapDecoratorList::iterator it2 = m_Decorators.begin(); it2 != m_Decorators.end();)
{
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if (it2->GetPlayer()->GetClientHandle() == it->m_Handle)
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{
// Erase decorator
cMapDecoratorList::iterator temp = it2;
++it2;
m_Decorators.erase(temp);
}
else
{
++it2;
}
}
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// Erase client
cMapClientList::iterator temp = it;
++it;
m_Clients.erase(temp);
}
else
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{
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++it;
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}
}
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}
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void cMap::StreamNext(cMapClient & a_Client)
{
cClientHandle * Handle = a_Client.m_Handle;
if (a_Client.m_SendInfo)
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{
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Handle->SendMapInfo(m_ID, m_Scale);
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a_Client.m_SendInfo = false;
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return;
}
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++a_Client.m_NextDecoratorUpdate;
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if (a_Client.m_NextDecoratorUpdate >= 4)
{
// TODO 2014-02-19 xdot
// This is dangerous as the player object may have been destroyed before the decorator is erased from the list
UpdateDecorators();
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Handle->SendMapDecorators(m_ID, m_Decorators, m_Scale);
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a_Client.m_NextDecoratorUpdate = 0;
}
else
{
++a_Client.m_DataUpdate;
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unsigned int Y = (a_Client.m_DataUpdate * 11) % m_Width;
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const Byte * Colors = &m_Data[Y * m_Height];
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Handle->SendMapColumn(m_ID, Y, 0, Colors, m_Height, m_Scale);
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}
}
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void cMap::UpdateClient(cPlayer * a_Player)
{
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ASSERT(a_Player != nullptr);
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cClientHandle * Handle = a_Player->GetClientHandle();
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if (Handle == nullptr)
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{
return;
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}
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Int64 WorldAge = a_Player->GetWorld()->GetWorldAge();
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RemoveInactiveClients(WorldAge - 5);
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// Linear search for client state
for (cMapClientList::iterator it = m_Clients.begin(); it != m_Clients.end(); ++it)
{
if (it->m_Handle == Handle)
{
it->m_LastUpdate = WorldAge;
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StreamNext(*it);
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return;
}
}
// New player, construct a new client state
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AddPlayer(a_Player, WorldAge);
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}
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void cMap::EraseData(void)
{
m_Data.assign(m_Width * m_Height, 0);
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}
eDimension cMap::GetDimension(void) const
{
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ASSERT(m_World != nullptr);
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return m_World->GetDimension();
}
void cMap::Resize(unsigned int a_Width, unsigned int a_Height)
{
if ((m_Width == a_Width) && (m_Height == a_Height))
{
return;
}
m_Width = a_Width;
m_Height = a_Height;
m_Data.assign(m_Width * m_Height, 0);
}
void cMap::SetPosition(int a_CenterX, int a_CenterZ)
{
m_CenterX = a_CenterX;
m_CenterZ = a_CenterZ;
}
void cMap::SetScale(unsigned int a_Scale)
{
if (m_Scale == a_Scale)
{
return;
}
m_Scale = a_Scale;
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for (cMapClientList::iterator it = m_Clients.begin(); it != m_Clients.end(); ++it)
{
it->m_SendInfo = true;
}
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}
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bool cMap::SetPixel(unsigned int a_X, unsigned int a_Z, cMap::ColorID a_Data)
{
if ((a_X < m_Width) && (a_Z < m_Height))
{
m_Data[a_Z + (a_X * m_Height)] = a_Data;
return true;
}
else
{
return false;
}
}
cMap::ColorID cMap::GetPixel(unsigned int a_X, unsigned int a_Z)
{
if ((a_X < m_Width) && (a_Z < m_Height))
{
return m_Data[a_Z + (a_X * m_Height)];
}
else
{
return E_BASE_COLOR_TRANSPARENT;
}
}
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void cMap::SendTo(cClientHandle & a_Client)
{
a_Client.SendMapInfo(m_ID, m_Scale);
for (unsigned int i = 0; i < m_Width; ++i)
{
const Byte* Colors = &m_Data[i * m_Height];
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a_Client.SendMapColumn(m_ID, i, 0, Colors, m_Height, m_Scale);
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}
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a_Client.SendMapDecorators(m_ID, m_Decorators, m_Scale);
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}
unsigned int cMap::GetNumPixels(void) const
{
return m_Width * m_Height;
}
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size_t cMap::GetNumDecorators(void) const
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{
return m_Decorators.size();
}
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unsigned int cMap::GetPixelWidth(void) const
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{
return (int) pow(2.0, (double) m_Scale);
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}