Kayne Ruse
444 lines
13 KiB
C++
444 lines
13 KiB
C++
/* Copyright: (c) Kayne Ruse 2013
|
|
*
|
|
* 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 "in_world.hpp"
|
|
|
|
#include "channels.hpp"
|
|
|
|
#include <algorithm>
|
|
#include <cmath>
|
|
#include <stdexcept>
|
|
|
|
//-------------------------
|
|
//Public access members
|
|
//-------------------------
|
|
|
|
InWorld::InWorld(
|
|
ConfigUtility* const argConfig,
|
|
UDPNetworkUtility* const argNetwork,
|
|
int* const argClientIndex,
|
|
int* const argAccountIndex,
|
|
int* const argCharacterIndex
|
|
):
|
|
config(*argConfig),
|
|
network(*argNetwork),
|
|
clientIndex(*argClientIndex),
|
|
accountIndex(*argAccountIndex),
|
|
characterIndex(*argCharacterIndex)
|
|
{
|
|
//setup the utility objects
|
|
buttonImage.LoadSurface(config["dir.interface"] + "button_menu.bmp");
|
|
buttonImage.SetClipH(buttonImage.GetClipH()/3);
|
|
font.LoadSurface(config["dir.fonts"] + "pk_white_8.bmp");
|
|
|
|
//pass the utility objects
|
|
disconnectButton.SetImage(&buttonImage);
|
|
disconnectButton.SetFont(&font);
|
|
shutDownButton.SetImage(&buttonImage);
|
|
shutDownButton.SetFont(&font);
|
|
|
|
//set the button positions
|
|
disconnectButton.SetX(50);
|
|
disconnectButton.SetY(50 + buttonImage.GetClipH() * 0);
|
|
shutDownButton.SetX(50);
|
|
shutDownButton.SetY(50 + buttonImage.GetClipH() * 1);
|
|
|
|
//set the button texts
|
|
disconnectButton.SetText("Disconnect");
|
|
shutDownButton.SetText("Shut Down");
|
|
|
|
//load the tilesheet
|
|
//TODO: add the tilesheet to the map system?
|
|
tileSheet.Load(config["dir.tilesets"] + "terrain.bmp", 12, 15);
|
|
|
|
//TODO: move this into it's own function
|
|
//request a sync
|
|
SerialPacket packet;
|
|
char buffer[PACKET_STRING_SIZE];
|
|
packet.meta.type = SerialPacket::Type::SYNCHRONIZE;
|
|
packet.clientInfo.clientIndex = clientIndex;
|
|
packet.clientInfo.accountIndex = accountIndex;
|
|
packet.clientInfo.characterIndex = characterIndex;
|
|
serialize(&packet, buffer);
|
|
network.Send(Channels::SERVER, buffer, PACKET_BUFFER_SIZE);
|
|
|
|
//debug
|
|
// RequestRegion(0, 0);
|
|
}
|
|
|
|
InWorld::~InWorld() {
|
|
//
|
|
}
|
|
|
|
//-------------------------
|
|
//Frame loop
|
|
//-------------------------
|
|
|
|
void InWorld::FrameStart() {
|
|
//
|
|
}
|
|
|
|
void InWorld::Update(double delta) {
|
|
SerialPacket packet;
|
|
|
|
//suck in all waiting packets
|
|
while(network.Receive()) {
|
|
deserialize(&packet, network.GetInData());
|
|
packet.meta.srcAddress = network.GetInPacket()->address;
|
|
HandlePacket(packet);
|
|
}
|
|
|
|
//update the characters
|
|
for (auto& it : playerCharacters) {
|
|
it.second.Update(delta);
|
|
}
|
|
//TODO: sort the players and entities by Y position
|
|
|
|
//update the camera
|
|
if(localCharacter) {
|
|
camera.x = localCharacter->GetPosition().x - camera.marginX;
|
|
camera.y = localCharacter->GetPosition().y - camera.marginY;
|
|
}
|
|
|
|
//check the map
|
|
UpdateMap();
|
|
}
|
|
|
|
void InWorld::FrameEnd() {
|
|
//
|
|
}
|
|
|
|
void InWorld::RenderFrame() {
|
|
// SDL_FillRect(GetScreen(), 0, 0);
|
|
Render(GetScreen());
|
|
SDL_Flip(GetScreen());
|
|
fps.Calculate();
|
|
}
|
|
|
|
void InWorld::Render(SDL_Surface* const screen) {
|
|
//draw the map
|
|
for (auto it = regionPager.GetContainer()->begin(); it != regionPager.GetContainer()->end(); it++) {
|
|
tileSheet.DrawRegionTo(screen, *it, camera.x, camera.y);
|
|
}
|
|
|
|
//draw characters
|
|
for (auto& it : playerCharacters) {
|
|
it.second.DrawTo(screen, camera.x, camera.y);
|
|
}
|
|
|
|
//draw UI
|
|
disconnectButton.DrawTo(screen);
|
|
shutDownButton.DrawTo(screen);
|
|
font.DrawStringTo(to_string_custom(fps.GetFrameRate()), screen, 0, 0);
|
|
}
|
|
|
|
//-------------------------
|
|
//Event handlers
|
|
//-------------------------
|
|
|
|
void InWorld::QuitEvent() {
|
|
//exit the game AND the server
|
|
RequestDisconnect();
|
|
SetNextScene(SceneList::MAINMENU);
|
|
}
|
|
|
|
void InWorld::MouseMotion(SDL_MouseMotionEvent const& motion) {
|
|
disconnectButton.MouseMotion(motion);
|
|
shutDownButton.MouseMotion(motion);
|
|
}
|
|
|
|
void InWorld::MouseButtonDown(SDL_MouseButtonEvent const& button) {
|
|
disconnectButton.MouseButtonDown(button);
|
|
shutDownButton.MouseButtonDown(button);
|
|
}
|
|
|
|
void InWorld::MouseButtonUp(SDL_MouseButtonEvent const& button) {
|
|
if (disconnectButton.MouseButtonUp(button) == Button::State::HOVER) {
|
|
RequestDisconnect();
|
|
}
|
|
if (shutDownButton.MouseButtonUp(button) == Button::State::HOVER) {
|
|
RequestShutDown();
|
|
}
|
|
}
|
|
|
|
void InWorld::KeyDown(SDL_KeyboardEvent const& key) {
|
|
switch(key.keysym.sym) {
|
|
case SDLK_ESCAPE: {
|
|
QuitEvent();
|
|
}
|
|
break;
|
|
|
|
//player movement
|
|
case SDLK_LEFT:
|
|
if (localCharacter) {
|
|
localCharacter->AdjustDirection(PlayerCharacter::Direction::WEST);
|
|
SendPlayerUpdate();
|
|
}
|
|
break;
|
|
|
|
case SDLK_RIGHT:
|
|
if (localCharacter) {
|
|
localCharacter->AdjustDirection(PlayerCharacter::Direction::EAST);
|
|
SendPlayerUpdate();
|
|
}
|
|
break;
|
|
|
|
case SDLK_UP:
|
|
if (localCharacter) {
|
|
localCharacter->AdjustDirection(PlayerCharacter::Direction::NORTH);
|
|
SendPlayerUpdate();
|
|
}
|
|
break;
|
|
|
|
case SDLK_DOWN:
|
|
if (localCharacter) {
|
|
localCharacter->AdjustDirection(PlayerCharacter::Direction::SOUTH);
|
|
SendPlayerUpdate();
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void InWorld::KeyUp(SDL_KeyboardEvent const& key) {
|
|
switch(key.keysym.sym) {
|
|
//player movement
|
|
case SDLK_LEFT:
|
|
if (localCharacter) {
|
|
localCharacter->AdjustDirection(PlayerCharacter::Direction::EAST);
|
|
SendPlayerUpdate();
|
|
}
|
|
break;
|
|
|
|
case SDLK_RIGHT:
|
|
if (localCharacter) {
|
|
localCharacter->AdjustDirection(PlayerCharacter::Direction::WEST);
|
|
SendPlayerUpdate();
|
|
}
|
|
break;
|
|
|
|
case SDLK_UP:
|
|
if (localCharacter) {
|
|
localCharacter->AdjustDirection(PlayerCharacter::Direction::SOUTH);
|
|
SendPlayerUpdate();
|
|
}
|
|
break;
|
|
|
|
case SDLK_DOWN:
|
|
if (localCharacter) {
|
|
localCharacter->AdjustDirection(PlayerCharacter::Direction::NORTH);
|
|
SendPlayerUpdate();
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
//-------------------------
|
|
//Network handlers
|
|
//-------------------------
|
|
|
|
void InWorld::HandlePacket(SerialPacket packet) {
|
|
switch(packet.meta.type) {
|
|
case SerialPacket::Type::DISCONNECT:
|
|
HandleDisconnect(packet);
|
|
break;
|
|
case SerialPacket::Type::REGION_CONTENT:
|
|
HandleRegionContent(packet);
|
|
break;
|
|
case SerialPacket::Type::CHARACTER_UPDATE:
|
|
HandleCharacterUpdate(packet);
|
|
break;
|
|
case SerialPacket::Type::CHARACTER_NEW:
|
|
HandleCharacterNew(packet);
|
|
break;
|
|
case SerialPacket::Type::CHARACTER_DELETE:
|
|
HandleCharacterDelete(packet);
|
|
break;
|
|
//handle errors
|
|
default:
|
|
throw(std::runtime_error(std::string() + "Unknown SerialPacket::Type encountered in InWorld: " + to_string_custom(int(packet.meta.type))));
|
|
break;
|
|
}
|
|
}
|
|
|
|
void InWorld::HandleDisconnect(SerialPacket packet) {
|
|
network.Unbind(Channels::SERVER);
|
|
clientIndex = -1;
|
|
accountIndex = -1;
|
|
characterIndex = -1;
|
|
SetNextScene(SceneList::MAINMENU);
|
|
}
|
|
|
|
void InWorld::HandleRegionContent(SerialPacket packet) {
|
|
//replace existing regions
|
|
regionPager.UnloadRegion(packet.regionInfo.x, packet.regionInfo.y);
|
|
regionPager.PushRegion(packet.regionInfo.region);
|
|
packet.regionInfo.region = nullptr;
|
|
}
|
|
|
|
void InWorld::HandleCharacterUpdate(SerialPacket packet) {
|
|
if (playerCharacters.find(packet.characterInfo.characterIndex) == playerCharacters.end()) {
|
|
HandleCharacterNew(packet);
|
|
return;
|
|
}
|
|
|
|
//update only if the message didn't originate from here
|
|
if (packet.characterInfo.clientIndex != clientIndex) {
|
|
playerCharacters[packet.characterInfo.characterIndex].SetPosition(packet.characterInfo.position);
|
|
playerCharacters[packet.characterInfo.characterIndex].SetMotion(packet.characterInfo.motion);
|
|
}
|
|
playerCharacters[packet.characterInfo.characterIndex].ResetDirection();
|
|
}
|
|
|
|
void InWorld::HandleCharacterNew(SerialPacket packet) {
|
|
if (playerCharacters.find(packet.characterInfo.characterIndex) != playerCharacters.end()) {
|
|
throw(std::runtime_error("Cannot create duplicate characters"));
|
|
}
|
|
|
|
//TODO: set the player's handle
|
|
//TODO: use a reference, don't use a lookup for every call
|
|
playerCharacters[packet.characterInfo.characterIndex].GetSprite()->LoadSurface(config["dir.sprites"] + packet.characterInfo.avatar, 4, 4);
|
|
playerCharacters[packet.characterInfo.characterIndex].SetPosition(packet.characterInfo.position);
|
|
playerCharacters[packet.characterInfo.characterIndex].SetMotion(packet.characterInfo.motion);
|
|
playerCharacters[packet.characterInfo.characterIndex].ResetDirection();
|
|
|
|
//catch this client's player object
|
|
if (packet.characterInfo.characterIndex == characterIndex && !localCharacter) {
|
|
localCharacter = &playerCharacters[characterIndex];
|
|
|
|
//setup the camera
|
|
camera.width = GetScreen()->w;
|
|
camera.height = GetScreen()->h;
|
|
//center on the player's character
|
|
camera.marginX = (GetScreen()->w / 2 - localCharacter->GetSprite()->GetImage()->GetClipW() / 2);
|
|
camera.marginY = (GetScreen()->h / 2 - localCharacter->GetSprite()->GetImage()->GetClipH() / 2);
|
|
}
|
|
}
|
|
|
|
void InWorld::HandleCharacterDelete(SerialPacket packet) {
|
|
//TODO: authenticate when own character is being deleted
|
|
|
|
playerCharacters.erase(packet.characterInfo.characterIndex);
|
|
|
|
//catch this client's player object
|
|
if (packet.characterInfo.characterIndex == characterIndex) {
|
|
characterIndex = -1;
|
|
localCharacter = nullptr;
|
|
}
|
|
}
|
|
|
|
//-------------------------
|
|
//Server control
|
|
//-------------------------
|
|
|
|
void InWorld::SendPlayerUpdate() {
|
|
SerialPacket packet;
|
|
char buffer[PACKET_BUFFER_SIZE];
|
|
|
|
//pack the packet
|
|
packet.meta.type = SerialPacket::Type::CHARACTER_UPDATE;
|
|
packet.characterInfo.clientIndex = clientIndex;
|
|
packet.characterInfo.accountIndex = accountIndex;
|
|
packet.characterInfo.characterIndex = characterIndex;
|
|
packet.characterInfo.position = localCharacter->GetPosition();
|
|
packet.characterInfo.motion = localCharacter->GetMotion();
|
|
|
|
serialize(&packet, buffer);
|
|
network.Send(Channels::SERVER, buffer, PACKET_BUFFER_SIZE);
|
|
}
|
|
|
|
void InWorld::RequestDisconnect() {
|
|
SerialPacket packet;
|
|
char buffer[PACKET_BUFFER_SIZE];
|
|
|
|
//send a disconnect request
|
|
packet.meta.type = SerialPacket::Type::DISCONNECT;
|
|
packet.clientInfo.clientIndex = clientIndex;
|
|
packet.clientInfo.accountIndex = accountIndex;
|
|
packet.clientInfo.characterIndex = characterIndex;
|
|
serialize(&packet, buffer);
|
|
network.Send(Channels::SERVER, buffer, PACKET_BUFFER_SIZE);
|
|
}
|
|
|
|
void InWorld::RequestShutDown() {
|
|
SerialPacket packet;
|
|
char buffer[PACKET_BUFFER_SIZE];
|
|
|
|
//send a shutdown request
|
|
packet.meta.type = SerialPacket::Type::SHUTDOWN;
|
|
packet.clientInfo.clientIndex = clientIndex;
|
|
packet.clientInfo.accountIndex = accountIndex;
|
|
packet.clientInfo.characterIndex = characterIndex;
|
|
serialize(&packet, buffer);
|
|
network.Send(Channels::SERVER, buffer, PACKET_BUFFER_SIZE);
|
|
}
|
|
|
|
void InWorld::RequestRegion(int mapIndex, int x, int y) {
|
|
SerialPacket packet;
|
|
char buffer[PACKET_BUFFER_SIZE];
|
|
|
|
//pack the region's data
|
|
packet.meta.type = SerialPacket::Type::REGION_REQUEST;
|
|
packet.regionInfo.mapIndex = mapIndex;
|
|
packet.regionInfo.x = x;
|
|
packet.regionInfo.y = y;
|
|
serialize(&packet, buffer);
|
|
network.Send(Channels::SERVER, buffer, PACKET_BUFFER_SIZE);
|
|
}
|
|
|
|
//-------------------------
|
|
//Utilities
|
|
//-------------------------
|
|
|
|
//TODO: convert this into a more generic function?; using parameters for the bounds
|
|
void InWorld::UpdateMap() {
|
|
//these represent the zone of regions that the client needs loaded, including the mandatory buffers (+1/-1)
|
|
int xStart = snapToBase(REGION_WIDTH, camera.x/tileSheet.GetTileW()) - REGION_WIDTH;
|
|
int xEnd = snapToBase(REGION_WIDTH, (camera.x+camera.width)/tileSheet.GetTileW()) + REGION_WIDTH;
|
|
|
|
int yStart = snapToBase(REGION_HEIGHT, camera.y/tileSheet.GetTileH()) - REGION_HEIGHT;
|
|
int yEnd = snapToBase(REGION_HEIGHT, (camera.y+camera.height)/tileSheet.GetTileH()) + REGION_HEIGHT;
|
|
|
|
//prune distant regions
|
|
for (auto it = regionPager.GetContainer()->begin(); it != regionPager.GetContainer()->end(); /* EMPTY */) {
|
|
//check if the region is outside off this area
|
|
if ((*it)->GetX() < xStart || (*it)->GetX() > xEnd || (*it)->GetY() < yStart || (*it)->GetY() > yEnd) {
|
|
|
|
//clunky, but the alternative was time consuming
|
|
int tmpX = (*it)->GetX();
|
|
int tmpY = (*it)->GetY();
|
|
++it;
|
|
|
|
regionPager.UnloadRegion(tmpX, tmpY);
|
|
continue;
|
|
}
|
|
++it;
|
|
}
|
|
|
|
//request empty regions within this zone
|
|
for (int i = xStart; i <= xEnd; i += REGION_WIDTH) {
|
|
for (int j = yStart; j <= yEnd; j += REGION_HEIGHT) {
|
|
if (!regionPager.FindRegion(i, j)) {
|
|
RequestRegion(0, i, j);
|
|
}
|
|
}
|
|
}
|
|
}
|