VDH
74 lines
2.0 KiB
C#
74 lines
2.0 KiB
C#
using UnityEngine;
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namespace BrewMonster
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{
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/// <summary>
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/// Straight-line projectile movement.
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/// Mirrors C++ CGfxLinearMove exactly (A3DSkillGfxEvent2.cpp:22-52).
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/// 直线弹道移动，完全镜像C++ CGfxLinearMove。
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/// </summary>
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public class CGfxLinearMove : CGfxMoveBase
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{
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protected float m_fSpeed;
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private const float _fly_speed = 20.0f / 1000.0f; // units per ms, same as C++
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public CGfxLinearMove(GfxMoveMode mode) : base(mode) { }
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/// <summary>
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/// Initialize movement from host to target.
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/// 初始化从施法者到目标的移动。
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/// </summary>
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public override void StartMove(Vector3 vHost, Vector3 vTarget)
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{
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if (m_bArea)
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{
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CalcRange((vTarget - vHost).normalized);
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m_vPos = vHost + GetRandOff();
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}
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else
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{
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m_vPos = vHost;
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}
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m_vMoveDir = vTarget - m_vPos;
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float fDist = Normalize(ref m_vMoveDir);
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float fMax = _fly_speed * m_dwMaxFlyTime;
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if (fMax >= fDist)
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{
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m_fSpeed = _fly_speed;
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}
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else
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{
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m_fSpeed = fDist / m_dwMaxFlyTime;
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}
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}
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/// <summary>
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/// Tick movement. Returns true when target is hit.
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/// 更新移动。当命中目标时返回true。
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/// </summary>
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public override bool TickMove(uint dwDeltaTime, Vector3 vHostPos, Vector3 vTargetPos)
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{
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Vector3 oldPos = m_vPos;
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Vector3 vFlyDir = vTargetPos - m_vPos;
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float fDist = Normalize(ref vFlyDir);
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float fFlyDist = m_fSpeed * dwDeltaTime;
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if (fFlyDist >= fDist)
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{
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return true; // target hit / 命中目标
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}
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m_vPos += vFlyDir * fFlyDist;
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m_vMoveDir = vFlyDir;
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return false;
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}
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}
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}
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