Merge branch 'entity' (early part) (read more)

I've had some issues with the entity system I created, so I'm trying to
revert it right now, while also retaining the other few tweaks I've made.
This commit is contained in:
Kayne Ruse
2014-04-15 22:38:53 +10:00
11 changed files with 429 additions and 91 deletions
+75
View File
@@ -0,0 +1,75 @@
/* Copyright: (c) Kayne Ruse 2013, 2014
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#ifndef BBOX_HPP_
#define BBOX_HPP_
#include <type_traits>
#include <stdexcept>
#include <algorithm>
//TODO: This is supposed to interact with the vector
class BBox {
public:
double x, y;
double w, h;
BBox() = default;
BBox(double i, double j, double k, double l): x(i), y(j), w(k), h(l) {};
~BBox() = default;
BBox& operator=(BBox const&) = default;
double Size() {
return std::max(w*h,0.0);
}
bool IsCollision(BBox rhs) {
return not (
x >= rhs.x + rhs.w ||
y >= rhs.y + rhs.h ||
rhs.x >= x + w ||
rhs.y >= y + h
);
}
BBox Intersection(BBox rhs) {
if (!IsCollision(rhs)) {
return {0, 0, 0, 0};
}
BBox ret;
ret.x = std::max(x, rhs.x);
ret.y = std::max(y, rhs.y);
ret.w = std::min(x+w, rhs.x+rhs.w) - ret.x;
ret.h = std::min(y+h, rhs.y+rhs.h) - ret.y;
return ret;
}
double operator[](size_t i) {
if (i >= 4)
throw(std::domain_error("Out of range"));
return *(&x+i);
}
};
//This is explicitly a POD
static_assert(std::is_pod<BBox>::value, "BBox is not a POD");
#endif
+1
View File
@@ -31,6 +31,7 @@
#pragma pack(push, 0)
//TODO: update the code here to match the entity code
union NetworkPacket {
//types of packets
enum class Type {
+4 -1
View File
@@ -22,6 +22,7 @@
#ifndef VECTOR2_HPP_
#define VECTOR2_HPP_
#include <type_traits>
#include <stdexcept>
#include <cmath>
@@ -29,7 +30,6 @@ class Vector2 {
public:
double x, y;
//This is explicitly a POD
Vector2() = default;
Vector2(double i, double j): x(i), y(j) {};
~Vector2() = default;
@@ -112,4 +112,7 @@ template<typename T> Vector2 operator/(T t, Vector2 v) { return v / t; }
template<typename T> bool operator==(T t, Vector2 v) { return v == t; }
template<typename T> bool operator!=(T t, Vector2 v) { return v != t; }
//This is explicitly a POD
static_assert(std::is_pod<Vector2>::value, "Vector2 is not a POD");
#endif
+29
View File
@@ -0,0 +1,29 @@
/* Copyright: (c) Kayne Ruse 2014
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#include "client.hpp"
#include <type_traits>
//This is explicitly a POD
static_assert(std::is_pod<Client>::value, "Client is not a POD");
unsigned int Client::uidCounter;
+32
View File
@@ -0,0 +1,32 @@
/* Copyright: (c) Kayne Ruse 2014
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#ifndef CLIENT_HPP_
#define CLIENT_HPP_
#include "SDL/SDL_net.h"
struct Client {
IPaddress address;
static unsigned int uidCounter;
};
#endif
+29
View File
@@ -0,0 +1,29 @@
/* Copyright: (c) Kayne Ruse 2014
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#include "entity.hpp"
#include <type_traits>
//This is explicitly a POD
static_assert(std::is_pod<Entity>::value, "Entity is not a POD");
unsigned int Entity::uidCounter;
+47
View File
@@ -0,0 +1,47 @@
/* Copyright: (c) Kayne Ruse 2014
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#ifndef ENTITY_HPP_
#define ENTITY_HPP_
//POD members
#include "vector2.hpp"
#include "bbox.hpp"
struct Entity {
enum Type {
PLAYER,
PORTAL,
ITEMS,
CHEST,
DOOR,
};
Type type;
int mapIndex;
Vector2 position;
Vector2 motion;
BBox bbox;
unsigned int externalID;
static unsigned int uidCounter;
};
#endif
+24
View File
@@ -0,0 +1,24 @@
/* Copyright: (c) Kayne Ruse 2014
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#include "player_entity.hpp"
unsigned int PlayerEntity::uidCounter;
+52
View File
@@ -0,0 +1,52 @@
/* Copyright: (c) Kayne Ruse 2014
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#ifndef PLAYERENTITY_HPP_
#define PLAYERENTITY_HPP_
#include <string>
struct PlayerEntity {
//metadata
int clientIndex;
std::string handle;
std::string avatar;
//statistics
int level;
int exp;
int maxHP;
int health;
int maxMP;
int mana;
int attack;
int defence;
int intelligence;
int resistance;
float accuracy;
float evasion;
float luck;
//uid
static unsigned int uidCounter;
};
#endif
+114 -57
View File
@@ -51,9 +51,11 @@ int runSQLScript(sqlite3* db, std::string fname) {
void ServerApplication::Init(int argc, char** argv) {
cout << "Beginning startup" << endl;
int ret = 0;
//load config
//initial setup
Client::uidCounter = 0;
Entity::uidCounter = 0;
PlayerEntity::uidCounter = 0;
config.Load("rsc\\config.cfg");
//Init SDL
@@ -70,7 +72,7 @@ void ServerApplication::Init(int argc, char** argv) {
cout << "Initialized SDL_net" << endl;
//Init SQL
ret = sqlite3_open_v2(config["server.dbname"].c_str(), &database, SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, nullptr);
int ret = sqlite3_open_v2(config["server.dbname"].c_str(), &database, SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, nullptr);
if (ret != SQLITE_OK || !database) {
throw(runtime_error(string() + "Failed to initialize SQL: " + sqlite3_errmsg(database) ));
}
@@ -97,12 +99,13 @@ void ServerApplication::Init(int argc, char** argv) {
cout << "Initialized lua's setup script" << endl;
//setup the map object
mapPager.SetRegionWidth(REGION_WIDTH);
mapPager.SetRegionHeight(REGION_HEIGHT);
mapPager.SetRegionDepth(REGION_DEPTH);
mapPager.GetGenerator()->SetLuaState(luaState);
mapPager.GetFormat()->SetLuaState(luaState);
mapPager.GetFormat()->SetSaveDir("save/mapname/");
regionPager.SetRegionWidth(REGION_WIDTH);
regionPager.SetRegionHeight(REGION_HEIGHT);
regionPager.SetRegionDepth(REGION_DEPTH);
regionPager.GetGenerator()->SetLuaState(luaState);
regionPager.GetFormat()->SetLuaState(luaState);
//TODO: config parameter
regionPager.GetFormat()->SetSaveDir("save/mapname/");
//TODO: pass args to the generator & format as needed
//NOTE: I might need to rearrange the init process so that lua & SQL can interact
// with the map system as needed.
@@ -130,6 +133,7 @@ void ServerApplication::Loop() {
HandlePacket(packet);
}
//give the computer a break
//TODO: remove this?
SDL_Delay(10);
}
}
@@ -137,9 +141,7 @@ void ServerApplication::Loop() {
void ServerApplication::Quit() {
cout << "Shutting down" << endl;
//empty the members
mapPager.UnloadAll();
//TODO: player manager
//TODO: client manager
regionPager.UnloadAll();
//APIs
lua_close(luaState);
@@ -207,44 +209,54 @@ void ServerApplication::HandleBroadcastRequest(NetworkPacket packet) {
void ServerApplication::HandleJoinRequest(NetworkPacket packet) {
//register the new client
ClientEntry c;
c.address = packet.meta.srcAddress;
clientMap[clientCounter] = c;
clientMap[Client::uidCounter] = {packet.meta.srcAddress};
//send the client their info
//send the client their index
char buffer[PACKET_BUFFER_SIZE];
packet.meta.type = NetworkPacket::Type::JOIN_RESPONSE;
packet.clientInfo.index = clientCounter;
packet.clientInfo.index = Client::uidCounter;
serialize(&packet, buffer);
network.Send(&clientMap[clientCounter].address, buffer, PACKET_BUFFER_SIZE);
//bounce this packet
network.Send(&packet.meta.srcAddress, buffer, PACKET_BUFFER_SIZE);
//finished this routine
clientCounter++;
Client::uidCounter++;
cout << "Connect, total: " << clientMap.size() << endl;
}
void ServerApplication::HandleDisconnect(NetworkPacket packet) {
//disconnect the specified client
//TODO: authenticate who is disconnecting/kicking
//disconnect the specified client
char buffer[PACKET_BUFFER_SIZE];
serialize(&packet, buffer);
network.Send(&clientMap[packet.clientInfo.index].address, buffer, PACKET_BUFFER_SIZE);
clientMap.erase(packet.clientInfo.index);
//delete players from all clients
//prep the delete packet
NetworkPacket delPacket;
delPacket.meta.type = NetworkPacket::Type::PLAYER_DELETE;
erase_if(playerMap, [&](std::pair<int, PlayerEntry> it) -> bool {
//TODO: can this use DeletePlayer() instead?
//delete PlayerEntity, Entity, and client side players
erase_if(playerMap, [&](std::pair<unsigned int, PlayerEntity> playerIter) -> bool {
//find the internal players to delete
if (it.second.clientIndex == packet.clientInfo.index) {
delPacket.playerInfo.playerIndex = it.first;
if (playerIter.second.clientIndex == packet.clientInfo.index) {
//send the delete player command to all clients
delPacket.playerInfo.playerIndex = playerIter.first;
PumpPacket(delPacket);
//erase the corresponding Entity
erase_if(entityMap, [&](std::pair<unsigned int, Entity> entityIter) -> bool {
return entityIter.second.type == Entity::Type::PLAYER && entityIter.second.externalID == playerIter.first;
});
//delete this player object
return true;
}
//don't delete this player object
return false;
});
@@ -253,19 +265,40 @@ void ServerApplication::HandleDisconnect(NetworkPacket packet) {
}
void ServerApplication::HandleSynchronize(NetworkPacket packet) {
//send all the server's data to this client
//TODO: compensate for large distances
//send all the server's data to this client
NetworkPacket newPacket;
char buffer[PACKET_BUFFER_SIZE];
//players
//TODO: map?
//entities
for (auto& it : entityMap) {
//what are we sending?
switch(it.second.type) {
case Entity::Type::PLAYER:
//TODO: update the network code to match the entity code
newPacket.meta.type = NetworkPacket::Type::PLAYER_UPDATE;
for (auto& it : playerMap) {
newPacket.playerInfo.playerIndex = it.first;
snprintf(newPacket.playerInfo.handle, PACKET_STRING_SIZE, "%s", it.second.handle.c_str());
snprintf(newPacket.playerInfo.avatar, PACKET_STRING_SIZE, "%s", it.second.avatar.c_str());
snprintf(newPacket.playerInfo.handle, PACKET_STRING_SIZE, "%s", playerMap[it.second.externalID].handle.c_str());
snprintf(newPacket.playerInfo.avatar, PACKET_STRING_SIZE, "%s", playerMap[it.second.externalID].avatar.c_str());
newPacket.playerInfo.position = it.second.position;
newPacket.playerInfo.motion = it.second.motion;
break;
case Entity::Type::PORTAL:
//TODO
break;
case Entity::Type::ITEMS:
//TODO
break;
case Entity::Type::CHEST:
//TODO
break;
case Entity::Type::DOOR:
//TODO
break;
}
serialize(&newPacket, buffer);
network.Send(&clientMap[packet.clientInfo.index].address, buffer, PACKET_BUFFER_SIZE);
}
@@ -284,47 +317,70 @@ void ServerApplication::HandleShutdown(NetworkPacket packet) {
}
void ServerApplication::HandlePlayerNew(NetworkPacket packet) {
//create the new player object
PlayerEntry newPlayer;
newPlayer.clientIndex = packet.playerInfo.clientIndex;
newPlayer.mapIndex = 0;
newPlayer.handle = packet.playerInfo.handle;
newPlayer.avatar = packet.playerInfo.avatar;
newPlayer.position = {0,0};
newPlayer.motion = {0,0};
//register the new Entity
entityMap[Entity::uidCounter] = {
Entity::Type::PLAYER,
0,
{0, 0},
{0, 0},
{0, 0, 0, 0},
PlayerEntity::uidCounter
};
//push this player
playerMap[playerCounter] = newPlayer;
//register the new PlayerEntity
playerMap[PlayerEntity::uidCounter] = {
packet.playerInfo.clientIndex,
packet.playerInfo.handle,
packet.playerInfo.avatar,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0.0,
0.0,
0.0
};
//send the client their info
packet.playerInfo.playerIndex = playerCounter;
packet.playerInfo.position = playerMap[playerCounter].position;
packet.playerInfo.motion = playerMap[playerCounter].motion;
packet.playerInfo.playerIndex = PlayerEntity::uidCounter;
packet.playerInfo.position = entityMap[Entity::uidCounter].position;
packet.playerInfo.motion = entityMap[Entity::uidCounter].motion;
//actually send to everyone
PumpPacket(packet);
//finish this routine
playerCounter++;
Entity::uidCounter++;
PlayerEntity::uidCounter++;
}
void ServerApplication::HandlePlayerDelete(NetworkPacket packet) {
if (playerMap.find(packet.playerInfo.playerIndex) == playerMap.end()) {
//TODO: remove this?
if (entityMap.find(packet.playerInfo.playerIndex) == entityMap.end()) {
throw(std::runtime_error("Cannot delete a non-existant player"));
}
//delete players
erase_if(playerMap, [&](pair<int, PlayerEntry> it) -> bool {
if (it.first == packet.playerInfo.playerIndex) {
//prep the delete packet
NetworkPacket delPacket;
//data to delete one specific player
delPacket.meta.type = NetworkPacket::Type::PLAYER_DELETE;
delPacket.playerInfo.playerIndex = it.first;
//delete the specified Entity, PlayerEntity
erase_if(entityMap, [&](std::pair<unsigned int, Entity> entityIter) -> bool {
//find the specified Entity
if (entityIter.first == packet.playerInfo.playerIndex) {
//send to all
delPacket.playerInfo.playerIndex = entityIter.first;
PumpPacket(delPacket);
//erase matching PlayerEntity
erase_if(playerMap, [&](std::pair<unsigned int, PlayerEntity> playerIter) -> bool {
return playerIter.first == entityIter.second.externalID;
});
return true;
}
return false;
@@ -332,13 +388,14 @@ void ServerApplication::HandlePlayerDelete(NetworkPacket packet) {
}
void ServerApplication::HandlePlayerUpdate(NetworkPacket packet) {
if (playerMap.find(packet.playerInfo.playerIndex) == playerMap.end()) {
//TODO: Lookup the reference once, and operate on that instead of looking it up 3 times
if (entityMap.find(packet.playerInfo.playerIndex) == entityMap.end()) {
throw(std::runtime_error("Cannot update a non-existant player"));
}
//server is the slave to the clients, but only for now
playerMap[packet.playerInfo.playerIndex].position = packet.playerInfo.position;
playerMap[packet.playerInfo.playerIndex].motion = packet.playerInfo.motion;
//TODO: the server needs it's own movement system too
entityMap[packet.playerInfo.playerIndex].position = packet.playerInfo.position;
entityMap[packet.playerInfo.playerIndex].motion = packet.playerInfo.motion;
PumpPacket(packet);
}
@@ -346,7 +403,7 @@ void ServerApplication::HandlePlayerUpdate(NetworkPacket packet) {
void ServerApplication::HandleRegionRequest(NetworkPacket packet) {
char buffer[PACKET_BUFFER_SIZE];
packet.meta.type = NetworkPacket::Type::REGION_CONTENT;
packet.regionInfo.region = mapPager.GetRegion(packet.regionInfo.x, packet.regionInfo.y);
packet.regionInfo.region = regionPager.GetRegion(packet.regionInfo.x, packet.regionInfo.y);
serialize(&packet, buffer);
network.Send(&packet.meta.srcAddress, buffer, PACKET_BUFFER_SIZE);
}
+16 -27
View File
@@ -22,6 +22,11 @@
#ifndef SERVERAPPLICATION_HPP_
#define SERVERAPPLICATION_HPP_
//server specific stuff
#include "client.hpp"
#include "entity.hpp"
#include "player_entity.hpp"
//maps
#include "map_generator.hpp"
#include "map_file_format.hpp"
@@ -45,19 +50,6 @@
#include <map>
#include <string>
struct ClientEntry {
IPaddress address;
};
struct PlayerEntry {
int clientIndex;
int mapIndex;
std::string handle;
std::string avatar;
Vector2 position;
Vector2 motion;
};
//The main application class
class ServerApplication {
public:
@@ -83,29 +75,26 @@ private:
void HandlePlayerUpdate(NetworkPacket);
void HandleRegionRequest(NetworkPacket);
//TODO: a function that sends to players in a certain proximity
void PumpPacket(NetworkPacket);
//maps
RegionPager<LuaGenerator, LuaFormat> mapPager;
//networking
//APIs
UDPNetworkUtility network;
//database
sqlite3* database = nullptr;
//lua
lua_State* luaState = nullptr;
//server tables
std::map<unsigned int, Client> clientMap;
std::map<unsigned int, Entity> entityMap;
std::map<unsigned int, PlayerEntity> playerMap;
//maps
//TODO: I need to handle multiple map objects
RegionPager<LuaGenerator, LuaFormat> regionPager;
//misc
bool running = true;
ConfigUtility config;
std::map<int, ClientEntry> clientMap;
std::map<int, PlayerEntry> playerMap;
int clientCounter = 0;
int playerCounter = 0;
};
#endif