420 lines
11 KiB
C++
420 lines
11 KiB
C++
#include <raylib.h>
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#include <raymath.h>
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#define RAYGUI_IMPLEMENTATION
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#include "includes/raygui.h"
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#include <iostream>
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#include <vector>
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#include <fstream>
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#include <unordered_map>
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#include <cstdint>
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#include <cstring>
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#include <thread>
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#include <chrono>
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#include "PlayerController.hpp"
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#include "net/NetworkManager.hpp"
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constexpr int WORLD_SIZE = 100;
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constexpr float WORLD_SCALE = 10.0f;
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constexpr float MOVE_SPEED = 15.0f;
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struct Heightmap {
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std::vector<float> data;
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int size{0};
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float getHeight(float x, float z) const {
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auto hx = static_cast<int>((x / WORLD_SIZE + 0.5f) * (size - 1));
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auto hz = static_cast<int>((z / WORLD_SIZE + 0.5f) * (size - 1));
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if (hx < 0 || hx >= size || hz < 0 || hz >= size) return 0.0f;
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return data[hz * size + hx];
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}
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bool load(const std::string& filename) {
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std::ifstream file(filename, std::ios::binary);
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if (!file) return false;
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int32_t fileSize;
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file.read(reinterpret_cast<char*>(&fileSize), sizeof(fileSize));
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size = fileSize;
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data.resize(size * size);
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file.read(reinterpret_cast<char*>(data.data()), data.size() * sizeof(float));
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return true;
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}
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Mesh generateMesh() const {
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auto mesh = Mesh{};
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int vertexCount = size * size;
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int triangleCount = (size - 1) * (size - 1) * 2;
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mesh.vertexCount = vertexCount;
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mesh.triangleCount = triangleCount;
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mesh.vertices = (float*)MemAlloc(vertexCount * 3 * sizeof(float));
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mesh.texcoords = (float*)MemAlloc(vertexCount * 2 * sizeof(float));
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mesh.normals = (float*)MemAlloc(vertexCount * 3 * sizeof(float));
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mesh.indices = (unsigned short*)MemAlloc(triangleCount * 3 * sizeof(unsigned short));
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// Generate vertices
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for (int z = 0; z < size; z++) {
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for (int x = 0; x < size; x++) {
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int idx = z * size + x;
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mesh.vertices[idx * 3] = (float(x) / (size - 1) - 0.5f) * WORLD_SIZE;
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mesh.vertices[idx * 3 + 1] = data[idx];
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mesh.vertices[idx * 3 + 2] = (float(z) / (size - 1) - 0.5f) * WORLD_SIZE;
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mesh.texcoords[idx * 2] = static_cast<float>(x) / size;
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mesh.texcoords[idx * 2 + 1] = static_cast<float>(z) / size;
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}
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}
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// Generate indices
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int triIdx = 0;
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for (int z = 0; z < size - 1; z++) {
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for (int x = 0; x < size - 1; x++) {
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int topLeft = z * size + x;
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int topRight = topLeft + 1;
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int bottomLeft = (z + 1) * size + x;
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int bottomRight = bottomLeft + 1;
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mesh.indices[triIdx++] = topLeft;
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mesh.indices[triIdx++] = bottomLeft;
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mesh.indices[triIdx++] = topRight;
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mesh.indices[triIdx++] = topRight;
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mesh.indices[triIdx++] = bottomLeft;
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mesh.indices[triIdx++] = bottomRight;
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}
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}
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// Calculate normals
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for (int i = 0; i < vertexCount; i++) {
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mesh.normals[i * 3] = 0;
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mesh.normals[i * 3 + 1] = 1;
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mesh.normals[i * 3 + 2] = 0;
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}
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UploadMesh(&mesh, false);
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return mesh;
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}
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};
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enum GameState {
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STATE_LOGIN,
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STATE_CONNECTING,
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STATE_PLAYING
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};
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class Game {
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PlayerController playerController;
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Model terrainModel;
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Model playerModel;
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Heightmap heightmap;
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NetworkManager network;
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Vector3 playerPos{0, 0, 0};
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Texture2D terrainTexture;
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std::unordered_map<std::string, Texture2D> playerTextures;
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std::unordered_map<uint32_t, Model> remotePlayerModels;
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// Login UI state
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GameState gameState = STATE_LOGIN;
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char usernameBuffer[32] = "";
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bool editMode = false;
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std::string loginError = "";
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std::string currentUsername = "";
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// Heartbeat timing
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float lastHeartbeatTime = 0.0f;
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const float HEARTBEAT_INTERVAL = 5.0f; // Send heartbeat every 5 seconds
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public:
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Game() {
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InitWindow(1280, 720, "Multiplayer Terrain Game");
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SetTargetFPS(60);
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// Load heightmap
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if (!heightmap.load("../assets/heightmap.bin")) {
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std::cerr << "Failed to load heightmap\n";
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}
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// Load textures
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terrainTexture = LoadTexture("../assets/textures/black.png");
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// Load all player color textures
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playerTextures["red"] = LoadTexture("../assets/textures/red.png");
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playerTextures["green"] = LoadTexture("../assets/textures/green.png");
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playerTextures["orange"] = LoadTexture("../assets/textures/orange.png");
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playerTextures["purple"] = LoadTexture("../assets/textures/purple.png");
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playerTextures["white"] = LoadTexture("../assets/textures/white.png");
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// Create terrain model
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auto terrainMesh = heightmap.generateMesh();
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terrainModel = LoadModelFromMesh(terrainMesh);
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terrainModel.materials[0].maps[MATERIAL_MAP_DIFFUSE].texture = terrainTexture;
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// Create player cube (texture will be set when we know our color)
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auto cubeMesh = GenMeshCube(1.0f, 2.0f, 1.0f);
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playerModel = LoadModelFromMesh(cubeMesh);
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}
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~Game() {
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// Send logout if we're connected
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if (gameState == STATE_PLAYING && network.isConnected()) {
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network.sendLogout();
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}
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UnloadTexture(terrainTexture);
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for (auto& [color, texture] : playerTextures) {
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UnloadTexture(texture);
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}
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UnloadModel(terrainModel);
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UnloadModel(playerModel);
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for (auto& [id, model] : remotePlayerModels) {
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UnloadModel(model);
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}
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CloseWindow();
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}
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void run() {
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while (!WindowShouldClose()) {
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update();
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render();
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}
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// Clean logout when window is closing
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if (gameState == STATE_PLAYING && network.isConnected()) {
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network.sendLogout();
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// Give the network time to send the packet
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std::this_thread::sleep_for(std::chrono::milliseconds(100));
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}
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}
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private:
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void update() {
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switch (gameState) {
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case STATE_LOGIN:
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// Login screen - no game updates
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break;
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case STATE_CONNECTING:
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// Check if we've received a response from the server
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if (network.isConnected()) {
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gameState = STATE_PLAYING;
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currentUsername = std::string(usernameBuffer);
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} else if (network.hasLoginError()) {
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gameState = STATE_LOGIN;
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loginError = network.getLoginError();
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}
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break;
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case STATE_PLAYING:
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updateGame();
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break;
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}
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}
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void updateGame() {
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if (!network.isConnected()) {
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// Player disconnected, go back to login
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gameState = STATE_LOGIN;
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loginError = "Disconnected from server";
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return;
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}
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// Get server position and update player controller
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playerPos = network.getPosition();
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playerController.setPlayerPosition(playerPos);
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// Set player texture based on assigned color
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if (network.isConnected() && playerTextures.count(network.getPlayerColor()) > 0) {
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playerModel.materials[0].maps[MATERIAL_MAP_DIFFUSE].texture = playerTextures[network.getPlayerColor()];
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}
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// Update remote player models
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auto remotePlayers = network.getRemotePlayers();
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for (const auto& [id, player] : remotePlayers) {
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if (remotePlayerModels.find(id) == remotePlayerModels.end()) {
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// Create new model for this player
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auto cubeMesh = GenMeshCube(1.0f, 2.0f, 1.0f);
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remotePlayerModels[id] = LoadModelFromMesh(cubeMesh);
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}
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// Always update texture in case color changed
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if (playerTextures.count(player.color) > 0) {
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remotePlayerModels[id].materials[0].maps[MATERIAL_MAP_DIFFUSE].texture = playerTextures[player.color];
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}
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}
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// Remove models for players who left
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for (auto it = remotePlayerModels.begin(); it != remotePlayerModels.end();) {
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if (remotePlayers.find(it->first) == remotePlayers.end()) {
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UnloadModel(it->second);
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it = remotePlayerModels.erase(it);
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} else {
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++it;
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}
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}
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// Update player controller (handles camera)
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float deltaTime = GetFrameTime();
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playerController.update(deltaTime);
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// Get movement input from player controller
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Vector3 moveInput = playerController.getMoveInput();
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// Send normalized movement direction to server (server handles speed)
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if (moveInput.x != 0 || moveInput.z != 0) {
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network.sendMove(moveInput.x, 0, moveInput.z);
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lastHeartbeatTime = GetTime(); // Reset heartbeat timer when moving
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}
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// Send periodic heartbeats when not moving
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float currentTime = GetTime();
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if (currentTime - lastHeartbeatTime >= HEARTBEAT_INTERVAL) {
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network.sendHeartbeat();
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lastHeartbeatTime = currentTime;
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}
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// Handle color change with arrow keys
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static int currentColorIndex = -1;
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if (IsKeyPressed(KEY_LEFT) || IsKeyPressed(KEY_RIGHT)) {
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// Get current color index if not set
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if (currentColorIndex == -1) {
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auto currentColor = network.getPlayerColor();
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for (size_t i = 0; i < NetworkManager::AVAILABLE_COLORS.size(); i++) {
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if (NetworkManager::AVAILABLE_COLORS[i] == currentColor) {
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currentColorIndex = i;
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break;
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}
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}
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if (currentColorIndex == -1) currentColorIndex = 0;
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}
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// Change color index
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if (IsKeyPressed(KEY_LEFT)) {
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currentColorIndex--;
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if (currentColorIndex < 0) {
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currentColorIndex = NetworkManager::AVAILABLE_COLORS.size() - 1;
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}
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} else if (IsKeyPressed(KEY_RIGHT)) {
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currentColorIndex++;
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if (currentColorIndex >= (int)NetworkManager::AVAILABLE_COLORS.size()) {
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currentColorIndex = 0;
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}
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}
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// Send color change to server
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network.sendColorChange(NetworkManager::AVAILABLE_COLORS[currentColorIndex]);
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}
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// Handle logout
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if (IsKeyPressed(KEY_ESCAPE)) {
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network.sendLogout();
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gameState = STATE_LOGIN;
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loginError = "";
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}
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}
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void render() {
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BeginDrawing();
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ClearBackground(SKYBLUE);
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switch (gameState) {
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case STATE_LOGIN:
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renderLoginScreen();
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break;
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case STATE_CONNECTING:
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renderConnectingScreen();
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break;
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case STATE_PLAYING:
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renderGame();
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break;
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}
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EndDrawing();
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}
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void renderLoginScreen() {
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// Center the login box
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int boxWidth = 300;
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int boxHeight = 200;
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int boxX = (GetScreenWidth() - boxWidth) / 2;
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int boxY = (GetScreenHeight() - boxHeight) / 2;
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// Draw login panel
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GuiPanel((Rectangle){(float)boxX, (float)boxY, (float)boxWidth, (float)boxHeight}, "Login");
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// Username label and text box
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GuiLabel((Rectangle){(float)(boxX + 20), (float)(boxY + 50), 80, 30}, "Username:");
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if (GuiTextBox((Rectangle){(float)(boxX + 100), (float)(boxY + 50), 180, 30},
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usernameBuffer, 32, editMode)) {
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editMode = !editMode;
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}
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// Login button
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if (GuiButton((Rectangle){(float)(boxX + 100), (float)(boxY + 100), 100, 30}, "Login")) {
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if (strlen(usernameBuffer) > 0) {
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// Send login with username
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network.sendLoginWithUsername(usernameBuffer);
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gameState = STATE_CONNECTING;
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loginError = "";
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} else {
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loginError = "Please enter a username";
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}
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}
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// Error message
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if (!loginError.empty()) {
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DrawText(loginError.c_str(), boxX + 20, boxY + 150, 20, RED);
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}
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// Instructions
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DrawText("Enter your username to join the game", 10, 10, 20, WHITE);
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}
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void renderConnectingScreen() {
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DrawText("Connecting to server...",
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GetScreenWidth()/2 - 100, GetScreenHeight()/2 - 10, 20, WHITE);
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}
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void renderGame() {
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BeginMode3D(playerController.getCamera());
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// Draw terrain
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DrawModel(terrainModel, {0, 0, 0}, 1.0f, WHITE);
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// Draw player
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if (network.isConnected()) {
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DrawModel(playerModel, playerPos, 1.0f, WHITE);
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}
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// Draw remote players
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auto remotePlayers = network.getRemotePlayers();
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for (const auto& [id, player] : remotePlayers) {
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if (remotePlayerModels.find(id) != remotePlayerModels.end()) {
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DrawModel(remotePlayerModels[id], player.position, 1.0f, WHITE);
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}
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}
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EndMode3D();
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// UI
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DrawText(TextFormat("Logged in as: %s", currentUsername.c_str()), 10, 10, 20, WHITE);
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DrawText("WASD: Move | Q/E: Strafe | Right-Click: Rotate Camera", 10, 35, 20, WHITE);
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DrawText("Left/Right Arrow: Change Color | Mouse Wheel: Zoom | ESC: Logout", 10, 60, 20, WHITE);
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if (network.isConnected()) {
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std::string colorText = "Your color: " + network.getPlayerColor();
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DrawText(colorText.c_str(), 10, 85, 20, WHITE);
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}
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DrawFPS(10, 110);
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}
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};
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int main() {
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Game game;
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game.run();
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return 0;
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}
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