277 lines
11 KiB
C#
277 lines
11 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Numerics;
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using SDL2;
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using SkinnerBox.Entities;
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using SlatedGameToolkit.Framework.AssetSystem;
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using SlatedGameToolkit.Framework.Graphics.Render;
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using SlatedGameToolkit.Framework.Graphics.Textures;
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using SlatedGameToolkit.Framework.Graphics.Window;
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using SlatedGameToolkit.Framework.Input.Devices;
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using SlatedGameToolkit.Framework.StateSystem;
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using SlatedGameToolkit.Framework.StateSystem.States;
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using SlatedGameToolkit.Framework.Utilities.Collections.Pooling;
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using SlatedGameToolkit.Framework.Utilities;
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namespace SkinnerBox.States.Gameplay
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{
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public class GamePlayState : IState
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{
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private MeshBatchRenderer renderer;
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private AssetManager assets;
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private StateManager stateManager;
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private Random random;
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//Cursor information
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private float widthFactor, heightFactor;
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private float serverTargetPos; //Last left click position
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//Entities
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private ServerEntity server;
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private ObjectPool<WarningEntity> warningPool;
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private List<WarningEntity> activeWarnings = new List<WarningEntity>();
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private ObjectPool<PacketEntity> packetPool;
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private List<PacketEntity> activePackets = new List<PacketEntity>();
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private PacketSpawnInfo packetSpawnInfo;
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private const float packetSafeMargin = 1/2f;
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private ObjectPool<DownloadEntity> downloadPool;
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private List<DownloadEntity> activeDownloads = new List<DownloadEntity>();
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private DownloadSpawnInfo downloadSpawnInfo;
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private const float downloadSafeMargin = 1.5f;
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private int viewHeight;
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public GamePlayState(MeshBatchRenderer renderer, AssetManager asset)
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{
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this.assets = asset;
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this.renderer = renderer;
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packetPool = new ObjectPool<PacketEntity>(CreatePacket);
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warningPool = new ObjectPool<WarningEntity>(createWarning);
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downloadPool = new ObjectPool<DownloadEntity>(createDownload);
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}
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public bool Activate()
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{
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Keyboard.keyboardUpdateEvent += KeyInputListener;
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Mouse.mouseUpdateEvent += MouseInput;
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serverTargetPos = 0.5f * Game.WIDTH_UNITS;
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server = new ServerEntity((Texture)assets["serverunit.png"], serverTargetPos, 0.1f);
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random = new Random();
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packetSpawnInfo = new PacketSpawnInfo(2, 1, (float)(random.NextDouble() * Game.WIDTH_UNITS), 1f, 0.2f, 3f);
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downloadSpawnInfo = new DownloadSpawnInfo(4, 6, 3, 1, 4, 2);
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return true;
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}
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public PacketEntity CreatePacket() {
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return new PacketEntity((Texture)assets["packet.png"]);
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}
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public WarningEntity createWarning() {
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return new WarningEntity((Texture)assets["warning.png"]);
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}
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public DownloadEntity createDownload() {
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return new DownloadEntity((Texture)assets["drag.png"], (Texture)assets["downloadbar.png"]);
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}
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public bool Deactivate()
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{
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Keyboard.keyboardUpdateEvent -= KeyInputListener;
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Mouse.mouseUpdateEvent -= MouseInput;
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return true;
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}
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public void Deinitialize()
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{
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}
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public string getName()
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{
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return "GamePlayState";
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}
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public void Initialize(StateManager manager)
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{
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this.stateManager = manager;
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int vw, vh, vx, vy;
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WindowContextsManager.CurrentGL.GetViewport(out vx, out vy, out vw, out vh);
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CalculateScaleFactors(vw, vh);
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}
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public void Render(double delta)
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{
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renderer.Begin(Matrix4x4.Identity, delta);
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foreach (WarningEntity warn in activeWarnings)
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{
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renderer.Draw(warn);
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}
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foreach (PacketEntity packet in activePackets)
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{
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renderer.Draw(packet);
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}
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foreach(DownloadEntity download in activeDownloads) {
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renderer.Draw(download);
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renderer.Draw(download.progressMesh);
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}
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renderer.Draw(server);
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renderer.End();
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}
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public void Update(double timeStep)
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{
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#region ServerUpdate
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if (Mouse.LeftButtonPressed) {
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serverTargetPos = widthFactor * Mouse.X;
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}
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if (serverTargetPos < server.CenterX)
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{
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server.CenterX -= ((float)timeStep * server.Speed);
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if (server.CenterX < serverTargetPos) server.CenterX = serverTargetPos;
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} else if (serverTargetPos > server.CenterX)
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{
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server.CenterX += ((float)timeStep * server.Speed);
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if (server.X > serverTargetPos) server.CenterX = serverTargetPos;
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}
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#endregion
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#region PacketUpdate
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packetSpawnInfo.timeElapsed += (float) timeStep;
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if (packetSpawnInfo.timeElapsed >= packetSpawnInfo.period) {
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packetSpawnInfo.timeElapsed = 0;
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//do spawning
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for(int i = 0; i < packetSpawnInfo.perSpawn; i++) {
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PacketEntity packet = packetPool.Retrieve();
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packet.CenterX = packetSpawnInfo.batchLocation;
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packet.Y = i * packet.Height + packetSpawnInfo.distanceBetween + Game.HEIGHT_UNITS + packetSpawnInfo.speed * (2/3f);
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packet.velocity = packetSpawnInfo.speed;
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packet.Color = Color.Blue;
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activePackets.Add(packet);
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}
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//Spawn Warning
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WarningEntity warning = warningPool.Retrieve();
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warning.CenterX = packetSpawnInfo.batchLocation;
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warning.LifeTime = packetSpawnInfo.period * (2/3f);
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warning.Y = Game.HEIGHT_UNITS - warning.Height;
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activeWarnings.Add(warning);
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//Prepare next batch
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packetSpawnInfo.batchLocation = (float)(packetSpawnInfo.batchLocation + (random.NextDouble() - 1/2f) * packetSpawnInfo.jumpDistance * 2);
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if (packetSpawnInfo.batchLocation > Game.WIDTH_UNITS - packetSafeMargin) {
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packetSpawnInfo.batchLocation = Game.WIDTH_UNITS - packetSafeMargin;
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} else if (packetSpawnInfo.batchLocation < packetSafeMargin) packetSpawnInfo.batchLocation = packetSafeMargin;
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}
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for (int i = 0; i < activePackets.Count; i++)
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{
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PacketEntity packet = activePackets[i];
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packet.Update(timeStep);
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if (packet.HitBox.IntersectsWith(server.HitBox) && packet.velocity > 0) {
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packet.velocity *= -2f;
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packet.Color = Color.Cyan;
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}
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if (packet.Y <= 0 - packet.Height) {
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packetPool.Release(packet);
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activePackets.RemoveAt(i);
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i--;
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continue;
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}
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if (packet.Y >= Game.HEIGHT_UNITS && packet.velocity < 0) {
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packetPool.Release(packet);
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activePackets.RemoveAt(i);
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i--;
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}
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}
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#endregion
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#region DownloadUpdate
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downloadSpawnInfo.elapsedSinceSpawn += (float)timeStep;
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if (downloadSpawnInfo.elapsedSinceSpawn >= downloadSpawnInfo.period) {
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downloadSpawnInfo.elapsedSinceSpawn = 0;
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if (activeDownloads.Count < downloadSpawnInfo.maximumAmount) {
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DownloadEntity download = downloadPool.Retrieve();
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download.Size = (int)(downloadSpawnInfo.generalSize + ((random.NextDouble() - 1/2f) * 2f * downloadSpawnInfo.sizeRange));
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download.X = (float)(random.NextDouble() * (Game.WIDTH_UNITS - download.Width));
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download.Y = (float)(downloadSafeMargin + random.NextDouble() * (Game.HEIGHT_UNITS - 2 * downloadSafeMargin));
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download.mesh.X = download.X;
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download.mesh.Y = download.Y;
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download.stepSize = downloadSpawnInfo.stepSize;
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download.health = downloadSpawnInfo.health;
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activeDownloads.Add(download);
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}
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}
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for (int i = 0; i < activeDownloads.Count; i++)
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{
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DownloadEntity download = activeDownloads[i];
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download.timeElapsed.Value += (float)timeStep;
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if (Mouse.RightButtonPressed) {
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Vector2 rightMousePos;
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rightMousePos.X = widthFactor * Mouse.X;
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rightMousePos.Y = heightFactor * (viewHeight - Mouse.Y);
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if (download.HitBox.Contains(rightMousePos)) {
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download.Input(rightMousePos.X - download.X);
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}
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}
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if (download.progressValue.Value >= download.Width)
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{
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downloadPool.Release(download);
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activeDownloads.RemoveAt(i);
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i--;
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Console.WriteLine("YAY");
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continue;
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}
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if (download.timeElapsed.Value >= download.health)
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{
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downloadPool.Release(download);
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activeDownloads.RemoveAt(i);
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i--;
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Console.WriteLine("AW");
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continue;
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}
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}
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#endregion
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#region WarningCleanup
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for (int i = 0; i < activeWarnings.Count; i++)
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{
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WarningEntity warn = activeWarnings[i];
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warn.aliveTime.Value += (float) timeStep;
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if (warn.aliveTime.Value >= warn.LifeTime) {
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warningPool.Release(warn);
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activeWarnings.RemoveAt(i);
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i--;
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}
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}
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#endregion
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}
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public void KeyInputListener(SDL.SDL_Keycode keycode, bool down) {
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}
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public void MouseInput(bool leftDown, bool rightDown, bool middle, int x, int y, int scrollX, int scrollY) {
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}
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public void WindowResize(int width, int height) {
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WindowContextsManager.CurrentWindowContext.GetDrawableDimensions();
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int vw, vh, vx, vy;
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WindowContextsManager.CurrentGL.GetViewport(out vx, out vy, out vw, out vh);
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CalculateScaleFactors(vw, vh);
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}
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private void CalculateScaleFactors(int width, int height) {
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viewHeight = height;
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this.widthFactor = Game.WIDTH_UNITS * (1f / width);
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this.heightFactor = Game.HEIGHT_UNITS * (1f / height);
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}
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}
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} |