osb/source/game/StarWorldTiles.hpp

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2023-06-20 04:33:09 +00:00
#ifndef STAR_WORLD_TILES_HPP
#define STAR_WORLD_TILES_HPP
#include "StarGameTypes.hpp"
#include "StarXXHash.hpp"
#include "StarLiquidTypes.hpp"
#include "StarTileDamage.hpp"
#include "StarTileSectorArray.hpp"
#include "StarCollisionGenerator.hpp"
#include "StarWorldLayout.hpp"
#include "StarVersion.hpp"
namespace Star {
struct WorldTile {
WorldTile();
// Copy constructor and operator= do not preserve collision cache.
WorldTile(WorldTile const& worldTile);
WorldTile& operator=(WorldTile const& worldTile);
MaterialId material(TileLayer layer) const;
ModId mod(TileLayer layer) const;
MaterialColorVariant materialColor(TileLayer layer) const;
tuple<MaterialId, MaterialHue, MaterialColorVariant> materialAndColor(TileLayer layer) const;
bool isConnectable(TileLayer layer, bool materialOnly) const;
bool isColliding(CollisionSet const& collisionSet) const;
MaterialId foreground;
MaterialHue foregroundHueShift;
ModId foregroundMod;
MaterialHue foregroundModHueShift;
MaterialColorVariant foregroundColorVariant;
MaterialId background;
MaterialHue backgroundHueShift;
ModId backgroundMod;
MaterialHue backgroundModHueShift;
MaterialColorVariant backgroundColorVariant;
CollisionKind collision;
bool collisionCacheDirty;
StaticList<CollisionBlock, CollisionGenerator::MaximumCollisionsPerSpace> collisionCache;
BiomeIndex blockBiomeIndex;
BiomeIndex environmentBiomeIndex;
bool biomeTransition;
TileDamageStatus foregroundDamage;
TileDamageStatus backgroundDamage;
// If block is part of a dungeon then that affects spawns/drops,
// as well as governing block protection
DungeonId dungeonId;
};
struct ServerTile : public WorldTile {
static VersionNumber const CurrentSerializationVersion;
ServerTile();
ServerTile(ServerTile const& serverTile);
ServerTile& operator=(ServerTile const& serverTile);
void write(DataStream& ds) const;
void read(DataStream& ds, VersionNumber serializationVersion);
// Updates collision, clears cache, and if the collision kind does not
// support liquid destroys it.
bool updateCollision(CollisionKind kind);
LiquidStore liquid;
// If set, a plant or object is rooted to the tile and tile damage
// should be redirected to this position
Maybe<Vec2I> rootSource;
};
typedef TileSectorArray<ServerTile, WorldSectorSize> ServerTileSectorArray;
typedef shared_ptr<ServerTileSectorArray> ServerTileSectorArrayPtr;
struct ClientTile : public WorldTile {
ClientTile();
ClientTile(ClientTile const& clientTile);
ClientTile& operator=(ClientTile const& clientTile);
bool backgroundLightTransparent;
bool foregroundLightTransparent;
LiquidLevel liquid;
float gravity;
};
typedef TileSectorArray<ClientTile, WorldSectorSize> ClientTileSectorArray;
typedef shared_ptr<ClientTileSectorArray> ClientTileSectorArrayPtr;
// Tile structure to transfer all data from client to server
struct NetTile {
NetTile();
MaterialId background;
MaterialHue backgroundHueShift;
MaterialColorVariant backgroundColorVariant;
ModId backgroundMod;
MaterialHue backgroundModHueShift;
MaterialId foreground;
MaterialHue foregroundHueShift;
MaterialColorVariant foregroundColorVariant;
ModId foregroundMod;
MaterialHue foregroundModHueShift;
CollisionKind collision;
BiomeIndex blockBiomeIndex;
BiomeIndex environmentBiomeIndex;
LiquidNetUpdate liquid;
DungeonId dungeonId;
};
DataStream& operator>>(DataStream& ds, NetTile& tile);
DataStream& operator<<(DataStream& ds, NetTile const& tile);
// Just the parts of a tile that are used to render. The members here are laid
// out specifically to avoid padding bytes so that a fast path can be taken
// when hashing for chunk render caching.
struct RenderTile {
MaterialId foreground;
ModId foregroundMod;
MaterialId background;
ModId backgroundMod;
MaterialHue foregroundHueShift;
MaterialHue foregroundModHueShift;
MaterialColorVariant foregroundColorVariant;
TileDamageType foregroundDamageType;
uint8_t foregroundDamageLevel;
MaterialHue backgroundHueShift;
MaterialHue backgroundModHueShift;
MaterialColorVariant backgroundColorVariant;
TileDamageType backgroundDamageType;
uint8_t backgroundDamageLevel;
LiquidId liquidId;
uint8_t liquidLevel;
template <typename Hasher>
void hashPushTerrain(Hasher& hasher) const;
template <typename Hasher>
void hashPushLiquid(Hasher& hasher) const;
};
DataStream& operator>>(DataStream& ds, RenderTile& tile);
DataStream& operator<<(DataStream& ds, RenderTile const& tile);
typedef MultiArray<RenderTile, 2> RenderTileArray;
inline WorldTile::WorldTile()
: foreground(NullMaterialId),
foregroundHueShift(),
foregroundMod(NoModId),
foregroundModHueShift(),
foregroundColorVariant(DefaultMaterialColorVariant),
background(NullMaterialId),
backgroundHueShift(),
backgroundMod(NoModId),
backgroundModHueShift(),
backgroundColorVariant(DefaultMaterialColorVariant),
collision(CollisionKind::Null),
collisionCacheDirty(true),
blockBiomeIndex(),
environmentBiomeIndex(),
dungeonId(NoDungeonId) {}
inline WorldTile::WorldTile(WorldTile const& worldTile) {
*this = worldTile;
}
inline WorldTile& WorldTile::operator=(WorldTile const& worldTile) {
foreground = worldTile.foreground;
foregroundHueShift = worldTile.foregroundHueShift;
foregroundMod = worldTile.foregroundMod;
foregroundModHueShift = worldTile.foregroundModHueShift;
foregroundColorVariant = worldTile.foregroundColorVariant;
background = worldTile.background;
backgroundHueShift = worldTile.backgroundHueShift;
backgroundMod = worldTile.backgroundMod;
backgroundModHueShift = worldTile.backgroundModHueShift;
backgroundColorVariant = worldTile.backgroundColorVariant;
// Don't bother copying collision cache
collisionCacheDirty = true;
collision = worldTile.collision;
blockBiomeIndex = worldTile.blockBiomeIndex;
environmentBiomeIndex = worldTile.environmentBiomeIndex;
foregroundDamage = worldTile.foregroundDamage;
backgroundDamage = worldTile.backgroundDamage;
dungeonId = worldTile.dungeonId;
return *this;
}
inline MaterialId WorldTile::material(TileLayer layer) const {
if (layer == TileLayer::Foreground)
return foreground;
else
return background;
}
inline ModId WorldTile::mod(TileLayer layer) const {
if (layer == TileLayer::Foreground)
return foregroundMod;
else
return backgroundMod;
}
inline MaterialColorVariant WorldTile::materialColor(TileLayer layer) const {
if (layer == TileLayer::Foreground)
return foregroundColorVariant;
else
return backgroundColorVariant;
}
inline tuple<MaterialId, MaterialHue, MaterialColorVariant> WorldTile::materialAndColor(TileLayer layer) const {
if (layer == TileLayer::Foreground)
return std::tuple<MaterialId, MaterialHue, MaterialColorVariant>{
foreground, foregroundHueShift, foregroundColorVariant};
else
return std::tuple<MaterialId, MaterialHue, MaterialColorVariant>{
background, backgroundHueShift, backgroundColorVariant};
}
inline ClientTile::ClientTile() : backgroundLightTransparent(true), foregroundLightTransparent(true), gravity() {}
inline ClientTile::ClientTile(ClientTile const& clientTile) : WorldTile() {
*this = clientTile;
}
inline ClientTile& ClientTile::operator=(ClientTile const& clientTile) {
WorldTile::operator=(clientTile);
backgroundLightTransparent = clientTile.backgroundLightTransparent;
foregroundLightTransparent = clientTile.foregroundLightTransparent;
liquid = clientTile.liquid;
gravity = clientTile.gravity;
return *this;
}
inline NetTile::NetTile()
: background(NullMaterialId),
backgroundHueShift(),
backgroundColorVariant(),
backgroundMod(NoModId),
backgroundModHueShift(),
foreground(NullMaterialId),
foregroundHueShift(),
foregroundColorVariant(),
foregroundMod(NoModId),
foregroundModHueShift(),
collision(),
blockBiomeIndex(),
environmentBiomeIndex(),
dungeonId(NoDungeonId) {}
template <typename Hasher>
inline void RenderTile::hashPushTerrain(Hasher& hasher) const {
// Do the fast path hash if the last (terrain relevant) field is at byte 20, because that means
// there are no padding bytes between any field and we can simply pass the
// entire tile as one block of memory.
static size_t const TerrainEndOffset = offsetof(RenderTile, liquidId);
static size_t const TotalTerrainSize =
sizeof(MaterialId) * 2 + sizeof(ModId) * 2 + sizeof(MaterialHue) * 4 + sizeof(MaterialColorVariant) * 2 * sizeof(TileDamageType) * 2 + 2;
#ifdef STAR_DEBUG
static bool const FastHash = false;
#else
static bool const FastHash = TerrainEndOffset == TotalTerrainSize;
#endif
if (FastHash) {
hasher.push((char const*)this, TerrainEndOffset);
} else {
char buffer[TotalTerrainSize];
size_t bufferSize = 0;
auto hashTilePart = [&](void const* data, size_t size) {
memcpy(buffer + bufferSize, data, size);
bufferSize += size;
};
hashTilePart(&foreground, sizeof(foreground));
hashTilePart(&foregroundMod, sizeof(foregroundMod));
hashTilePart(&background, sizeof(background));
hashTilePart(&backgroundMod, sizeof(backgroundMod));
hashTilePart(&foregroundHueShift, sizeof(foregroundHueShift));
hashTilePart(&foregroundModHueShift, sizeof(foregroundModHueShift));
hashTilePart(&foregroundColorVariant, sizeof(foregroundColorVariant));
hashTilePart(&foregroundDamageType, sizeof(foregroundDamageType));
hashTilePart(&foregroundDamageLevel, sizeof(foregroundDamageLevel));
hashTilePart(&backgroundHueShift, sizeof(backgroundHueShift));
hashTilePart(&backgroundModHueShift, sizeof(backgroundModHueShift));
hashTilePart(&backgroundColorVariant, sizeof(backgroundColorVariant));
hashTilePart(&backgroundDamageType, sizeof(backgroundDamageType));
hashTilePart(&backgroundDamageLevel, sizeof(backgroundDamageLevel));
hasher.push(buffer, TotalTerrainSize);
}
}
template <typename Hasher>
inline void RenderTile::hashPushLiquid(Hasher& hasher) const {
char buffer[sizeof(liquidLevel) + sizeof(liquidId)];
memcpy(buffer, &liquidLevel, sizeof(liquidLevel));
memcpy(buffer + sizeof(liquidLevel), &liquidId, sizeof(liquidId));
hasher.push(buffer, sizeof(liquidLevel) + sizeof(liquidId));
}
}
#endif