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104 lines
3.1 KiB
C#
104 lines
3.1 KiB
C#
// Copyright 2014-2017 ClassicalSharp | Licensed under BSD-3
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using System;
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using ClassicalSharp.Physics;
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using OpenTK;
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namespace ClassicalSharp.Entities {
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/// <summary> Entity component that plays block step sounds. </summary>
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public sealed class SoundComponent {
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LocalPlayer p;
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Game game;
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Predicate<byte> checkSoundNonSolid, checkSoundSolid;
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public SoundComponent(Game game, Entity entity) {
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this.game = game;
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p = (LocalPlayer)entity;
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checkSoundNonSolid = CheckSoundNonSolid;
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checkSoundSolid = CheckSoundSolid;
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lastSoundPos = -Utils.MaxPos();
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}
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Vector3 lastSoundPos;
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public void Tick(bool wasOnGround) {
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Vector3 soundPos = p.interp.next.Pos;
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GetSound();
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if (!anyNonAir) soundPos = Utils.MaxPos();
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if (p.onGround && (DoPlaySound(soundPos) || !wasOnGround)) {
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game.AudioPlayer.PlayStepSound(sndType);
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lastSoundPos = soundPos;
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}
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}
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bool DoPlaySound(Vector3 soundPos) {
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float distSq = (lastSoundPos - soundPos).LengthSquared;
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bool enoughDist = distSq > 1.75f * 1.75f;
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// just play every certain block interval when not animating
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if (p.curSwing < 0.999f) return enoughDist;
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// have our legs just crossed over the '0' point?
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float oldLegRot;
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float newLegRot;
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if (game.Camera.IsThirdPerson) {
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oldLegRot = (float)Math.Cos(p.anim.walkTimeO);
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newLegRot = (float)Math.Cos(p.anim.walkTimeN);
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}
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else {
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oldLegRot = (float)Math.Sin(p.anim.walkTimeO);
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newLegRot = (float)Math.Sin(p.anim.walkTimeN);
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}
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return Math.Sign(oldLegRot) != Math.Sign(newLegRot);
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}
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bool anyNonAir = false;
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SoundType sndType = SoundType.None;
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void GetSound() {
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Vector3 pos = p.interp.next.Pos;
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AABB bounds = p.Bounds;
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sndType = SoundType.None;
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anyNonAir = false;
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// first check surrounding liquids/gas for sounds
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p.TouchesAny(bounds, checkSoundNonSolid);
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if (sndType != SoundType.None) return;
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// then check block standing on
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pos.Y -= 0.01f;
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Vector3I feetPos = Vector3I.Floor(pos);
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byte blockUnder = game.World.SafeGetBlock(feetPos);
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float maxY = feetPos.Y + game.BlockInfo.MaxBB[blockUnder].Y;
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SoundType typeUnder = game.BlockInfo.StepSounds[blockUnder];
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CollideType collideType = game.BlockInfo.Collide[blockUnder];
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if (maxY >= pos.Y && collideType == CollideType.Solid && typeUnder != SoundType.None) {
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anyNonAir = true; sndType = typeUnder; return;
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}
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// then check all solid blocks at feet
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bounds.Max.Y = bounds.Min.Y = pos.Y;
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p.TouchesAny(bounds, checkSoundSolid);
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}
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bool CheckSoundNonSolid(byte b) {
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SoundType newType = game.BlockInfo.StepSounds[b];
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CollideType collide = game.BlockInfo.Collide[b];
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if (newType != SoundType.None && collide != CollideType.Solid)
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sndType = newType;
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if (game.BlockInfo.Draw[b] != DrawType.Gas)
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anyNonAir = true;
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return false;
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}
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bool CheckSoundSolid(byte b) {
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SoundType newType = game.BlockInfo.StepSounds[b];
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if (newType != SoundType.None) sndType = newType;
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if (game.BlockInfo.Draw[b] != DrawType.Gas)
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anyNonAir = true;
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return false;
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}
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}
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} |