Kayne Ruse
328 lines
9.0 KiB
C++
328 lines
9.0 KiB
C++
/* Copyright: (c) Kayne Ruse 2013
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*/
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#include "in_world.hpp"
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#include "channels.hpp"
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#include <stdexcept>
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//-------------------------
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//Public access members
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//-------------------------
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InWorld::InWorld(ConfigUtility* const argConfig, UDPNetworkUtility* const argNetwork, int* const argClientIndex):
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config(*argConfig),
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network(*argNetwork),
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clientIndex(*argClientIndex)
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{
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//setup the utility objects
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image.LoadSurface(config["dir.interface"] + "button_menu.bmp");
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image.SetClipH(image.GetClipH()/3);
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font.LoadSurface(config["dir.fonts"] + "pk_white_8.bmp");
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//pass the utility objects
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disconnectButton.SetImage(&image);
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disconnectButton.SetFont(&font);
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shutDownButton.SetImage(&image);
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shutDownButton.SetFont(&font);
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//set the button positions
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disconnectButton.SetX(50);
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disconnectButton.SetY(50 + image.GetClipH() * 0);
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shutDownButton.SetX(50);
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shutDownButton.SetY(50 + image.GetClipH() * 1);
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//set the button texts
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disconnectButton.SetText("Disconnect");
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shutDownButton.SetText("Shut Down");
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//create the server-side player object
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NetworkPacket packet;
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packet.meta.type = NetworkPacket::Type::PLAYER_NEW;
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packet.playerInfo.clientIndex = clientIndex;
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snprintf(packet.playerInfo.handle, PACKET_STRING_SIZE, "%s", config["player.handle"].c_str());
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snprintf(packet.playerInfo.avatar, PACKET_STRING_SIZE, "%s", config["player.avatar"].c_str());
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packet.playerInfo.position = {0,0};
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packet.playerInfo.motion = {0,0};
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//send it
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char buffer[sizeof(NetworkPacket)];
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serialize(&packet, buffer);
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network.Send(Channels::SERVER, buffer, sizeof(NetworkPacket));
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//request a sync
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packet.meta.type = NetworkPacket::Type::SYNCHRONIZE;
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serialize(&packet, buffer);
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network.Send(Channels::SERVER, buffer, sizeof(NetworkPacket));
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}
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InWorld::~InWorld() {
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//
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}
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//-------------------------
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//Frame loop
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//-------------------------
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void InWorld::FrameStart() {
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//
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}
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void InWorld::Update(double delta) {
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//suck in all waiting packets
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NetworkPacket packet;
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while(network.Receive()) {
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deserialize(&packet, network.GetInData());
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packet.meta.srcAddress = network.GetInPacket()->address;
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HandlePacket(packet);
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}
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for (auto& it : playerCharacters) {
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it.second.Update(delta);
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}
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}
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void InWorld::FrameEnd() {
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//
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}
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void InWorld::Render(SDL_Surface* const screen) {
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for (auto& it : playerCharacters) {
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it.second.DrawTo(screen);
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}
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disconnectButton.DrawTo(screen);
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shutDownButton.DrawTo(screen);
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}
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//-------------------------
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//Event handlers
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//-------------------------
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void InWorld::QuitEvent() {
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//exit the game AND the server
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RequestDisconnect();
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}
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void InWorld::MouseMotion(SDL_MouseMotionEvent const& motion) {
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disconnectButton.MouseMotion(motion);
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shutDownButton.MouseMotion(motion);
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}
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void InWorld::MouseButtonDown(SDL_MouseButtonEvent const& button) {
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disconnectButton.MouseButtonDown(button);
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shutDownButton.MouseButtonDown(button);
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}
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void InWorld::MouseButtonUp(SDL_MouseButtonEvent const& button) {
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if (disconnectButton.MouseButtonUp(button) == Button::State::HOVER) {
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RequestDisconnect();
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}
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if (shutDownButton.MouseButtonUp(button) == Button::State::HOVER) {
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RequestShutDown();
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}
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}
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void InWorld::KeyDown(SDL_KeyboardEvent const& key) {
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switch(key.keysym.sym) {
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case SDLK_ESCAPE: {
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QuitEvent();
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}
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break;
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//player movement
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case SDLK_LEFT:
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if (localCharacter) {
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localCharacter->AdjustDirection(PlayerCharacter::Direction::WEST);
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SendState();
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}
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break;
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case SDLK_RIGHT:
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if (localCharacter) {
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localCharacter->AdjustDirection(PlayerCharacter::Direction::EAST);
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SendState();
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}
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break;
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case SDLK_UP:
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if (localCharacter) {
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localCharacter->AdjustDirection(PlayerCharacter::Direction::NORTH);
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SendState();
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}
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break;
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case SDLK_DOWN:
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if (localCharacter) {
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localCharacter->AdjustDirection(PlayerCharacter::Direction::SOUTH);
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SendState();
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}
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break;
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}
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}
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void InWorld::KeyUp(SDL_KeyboardEvent const& key) {
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switch(key.keysym.sym) {
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//player movement
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case SDLK_LEFT:
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if (localCharacter) {
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localCharacter->AdjustDirection(PlayerCharacter::Direction::EAST);
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SendState();
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}
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break;
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case SDLK_RIGHT:
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if (localCharacter) {
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localCharacter->AdjustDirection(PlayerCharacter::Direction::WEST);
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SendState();
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}
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break;
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case SDLK_UP:
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if (localCharacter) {
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localCharacter->AdjustDirection(PlayerCharacter::Direction::SOUTH);
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SendState();
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}
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break;
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case SDLK_DOWN:
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if (localCharacter) {
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localCharacter->AdjustDirection(PlayerCharacter::Direction::NORTH);
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SendState();
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}
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break;
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}
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}
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void InWorld::HandlePacket(NetworkPacket packet) {
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switch(packet.meta.type) {
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case NetworkPacket::Type::DISCONNECT:
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HandleDisconnect(packet);
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break;
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case NetworkPacket::Type::PLAYER_NEW:
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HandlePlayerNew(packet);
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break;
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case NetworkPacket::Type::PLAYER_DELETE:
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HandlePlayerDelete(packet);
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break;
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case NetworkPacket::Type::PLAYER_UPDATE:
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HandlePlayerUpdate(packet);
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break;
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//handle errors
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default:
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throw(std::runtime_error("Unknown NetworkPacket::Type encountered"));
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break;
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}
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}
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void InWorld::HandleDisconnect(NetworkPacket packet) {
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network.Unbind(Channels::SERVER);
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clientIndex = -1;
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SetNextScene(SceneList::MAINMENU);
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}
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void InWorld::HandlePlayerNew(NetworkPacket packet) {
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if (playerCharacters.find(packet.playerInfo.playerIndex) != playerCharacters.end()) {
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throw(std::runtime_error("Cannot create duplicate players"));
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}
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playerCharacters[packet.playerInfo.playerIndex].GetSprite()->LoadSurface(config["dir.sprites"] + packet.playerInfo.avatar, 4, 4);
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playerCharacters[packet.playerInfo.playerIndex].SetPosition(packet.playerInfo.position);
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playerCharacters[packet.playerInfo.playerIndex].SetMotion(packet.playerInfo.motion);
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playerCharacters[packet.playerInfo.playerIndex].ResetDirection();
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//catch this client's player object
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if (packet.playerInfo.clientIndex == clientIndex && !localCharacter) {
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playerIndex = packet.playerInfo.playerIndex;
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localCharacter = &playerCharacters[playerIndex];
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}
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}
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void InWorld::HandlePlayerDelete(NetworkPacket packet) {
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if (playerCharacters.find(packet.playerInfo.playerIndex) == playerCharacters.end()) {
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throw(std::runtime_error("Cannot delete non-existant players"));
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}
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playerCharacters.erase(packet.playerInfo.playerIndex);
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//catch this client's player object
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if (packet.playerInfo.clientIndex == clientIndex) {
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playerIndex = -1;
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localCharacter = nullptr;
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}
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}
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void InWorld::HandlePlayerUpdate(NetworkPacket packet) {
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if (playerCharacters.find(packet.playerInfo.playerIndex) == playerCharacters.end()) {
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HandlePlayerNew(packet);
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return;
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}
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//update only if the message didn't originate from here
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if (packet.playerInfo.clientIndex != clientIndex) {
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playerCharacters[packet.playerInfo.playerIndex].SetPosition(packet.playerInfo.position);
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playerCharacters[packet.playerInfo.playerIndex].SetMotion(packet.playerInfo.motion);
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}
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playerCharacters[packet.playerInfo.playerIndex].ResetDirection();
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}
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void InWorld::SendState() {
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NetworkPacket packet;
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char buffer[sizeof(NetworkPacket)];
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//pack the packet
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packet.meta.type = NetworkPacket::Type::PLAYER_UPDATE;
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packet.playerInfo.clientIndex = clientIndex;
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packet.playerInfo.playerIndex = playerIndex;
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// snprintf(packet.playerInfo.handle, PACKET_STRING_SIZE, "%s", config["player.handle"].c_str());
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// snprintf(packet.playerInfo.avatar, PACKET_STRING_SIZE, "%s", config["player.avatar"].c_str());
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packet.playerInfo.position = localCharacter->GetPosition();
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packet.playerInfo.motion = localCharacter->GetMotion();
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serialize(&packet, buffer);
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network.Send(Channels::SERVER, buffer, sizeof(NetworkPacket));
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}
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void InWorld::RequestDisconnect() {
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NetworkPacket packet;
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char buffer[sizeof(NetworkPacket)];
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//send a disconnect request
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packet.meta.type = NetworkPacket::Type::DISCONNECT;
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packet.clientInfo.index = clientIndex;
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serialize(&packet, buffer);
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network.Send(Channels::SERVER, buffer, sizeof(NetworkPacket));
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}
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void InWorld::RequestShutDown() {
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NetworkPacket packet;
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char buffer[sizeof(NetworkPacket)];
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//send a shutdown request
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packet.meta.type = NetworkPacket::Type::SHUTDOWN;
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packet.clientInfo.index = clientIndex;
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serialize(&packet, buffer);
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network.Send(Channels::SERVER, buffer, sizeof(NetworkPacket));
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} |