/// <summary>
/// 根据ChangeValue的值获取对应的值并返回
/// </summary>
/// <param name="changeValue"></param>
/// <returns></returns>
private float GetValueByChangeValue(ParaChangeValue changeValue)
{
float value = 0;
if (changeValue.argType == 0)
{
value = changeValue.arg0;
}
else if (changeValue.argType == 1)
{
Vector2 playerPos = new Vector2(Global.PlayerPos.x, Global.PlayerPos.y);
Vector2 bulletPos = _bullet.GetPosition();
float angle = MathUtil.GetAngleBetweenXAxis(playerPos - bulletPos);
value = angle;
}
else if (changeValue.argType == 2)
{
Vector2 targetPos = new Vector2(changeValue.arg0, changeValue.arg1);
Vector2 bulletPos = _bullet.GetPosition();
float angle = MathUtil.GetAngleBetweenXAxis(targetPos - bulletPos);
value = angle;
}
if (changeValue.offset != 0)
{
value += MTRandom.GetNextFloat(-changeValue.offset, changeValue.offset);
}
return(value);
}
public static int GetRandomFloat(ILuaState luaState)
{
float begin = (float)luaState.ToNumber(-2);
float end = (float)luaState.ToNumber(-1);
luaState.PushNumber(MTRandom.GetNextFloat(begin, end));
return(1);
}
public override void Start()
{
SCEffect effect;
float angle = MTRandom.GetNextFloat(0, 360);
for (int i = 0; i < MaxEffectCount; i++)
{
effect = new SCEffect();
effect.Init(angle + i * 45, i);
_effectList.Add(effect);
}
// 音效
SoundManager.GetInstance().Play("se_masterspark", 0.1f, false, true);
}
private GravitationParas CreateGravitationParas(IAffectedMovableObject affectedObj)
{
// 偏移计算
float velocityOffset = _velocityOffset == 0 ? 0 : MTRandom.GetNextFloat(-_velocityOffset, _velocityOffset);
float acceOffset = _acceOffset == 0 ? 0 : MTRandom.GetNextFloat(-_acceOffset, _acceOffset);
// 计算实际的额外运动参数
float v = _velocity + velocityOffset;
float acce = _acce + acceOffset;
float vAngle = _vAngle, accAngle = _accAngle;
// 中心吸力
if (_fieldType == GravitationType.Centripetal)
{
Vector2 affectObjectPos = affectedObj.GetPosition();
Vector2 fieldPos = _curPos;
float angle = MathUtil.GetAngleBetweenXAxis(fieldPos - affectObjectPos);
vAngle = angle;
accAngle = angle;
}
// 中心斥力
else if (_fieldType == GravitationType.Centrifugal)
{
Vector2 affectObjectPos = affectedObj.GetPosition();
Vector2 fieldPos = _curPos;
float angle = MathUtil.GetAngleBetweenXAxis(affectObjectPos - fieldPos);
vAngle = angle;
accAngle = angle;
}
// 只有普通立场才计算偏移
if (_fieldType == GravitationType.Normal)
{
float vAngleOffset = _vAngleOffset == 0 ? 0 : MTRandom.GetNextFloat(-_vAngleOffset, _vAngleOffset);
float accAngleOffset = _accAngleOffset == 0 ? 0 : MTRandom.GetNextFloat(-_accAngleOffset, _accAngleOffset);
// 计算速度方向以及加速度方向
vAngle += vAngleOffset;
accAngle += accAngleOffset;
}
GravitationParas paras = new GravitationParas
{
velocity = v,
vAngle = vAngle,
acce = acce,
accAngle = accAngle,
};
return(paras);
}
/// <summary>
/// 掉落物品
/// </summary>
/// <param name="itemDatas">结构 type,count</param>
/// <para>举例： 1,5,2,3,5,6</para>
/// <para>即生成type=1的5个，type=2的3个,type=5的6个</para>
/// <param name="centerX"></param>
/// <param name="centerY"></param>
/// <param name="halfWidth"></param>
/// <param name="halfHeight"></param>
public void DropItems(List <int> itemDatas, float centerX, float centerY, float halfWidth, float halfHeight)
{
float beginX = centerX - halfWidth;
float endX = centerX + halfWidth;
float beginY = centerY - halfHeight;
float endY = centerY + halfHeight;
ItemType itemType;
int itemCount;
for (int i = 0, len = itemDatas.Count; i < len; i += 2)
{
itemType = (ItemType)itemDatas[i];
itemCount = itemDatas[i + 1];
for (int j = 0; j < itemCount; j++)
{
CreateItemByItemType(itemType, MTRandom.GetNextFloat(beginX, endX), MTRandom.GetNextFloat(beginY, endY));
}
}
}
/// <summary>
/// 敌机在duration的持续时间内进行移动
/// <para>移动的目标地点以及方式在之前设置的范围、振幅、模式里面</para>
/// </summary>
/// <param name="duration"></param>
public virtual void DoWander(int duration)
{
// 记录移动方向是否有效的数组
List <int> availableDir = new List <int>();
int dir;
float minX, maxX, minY, maxY, toX, toY;
// 根据dirMode计算重新计算边界
Vector2 playerPos = Global.PlayerPos;
// 向左
if (_curPos.x - _wanderAmplitudeX.x >= _wanderRangeX.x)
{
availableDir.Add(0);
}
if (_curPos.x + _wanderAmplitudeX.x <= _wanderRangeX.y)
{
availableDir.Add(1);
}
if (availableDir.Count == 0)
{
toX = _curPos.x;
}
else
{
dir = MTRandom.GetNextInt(0, 1);
if (_dirMode == DirectionMode.MoveXTowardsPlayer || _dirMode == DirectionMode.MoveTowardsPlayer)
{
//往左移动
if (playerPos.x < _curPos.x)
{
dir = 0;
}
else
{
dir = 1;
}
if (availableDir.IndexOf(dir) == -1)
{
dir = 1 - dir;
}
}
else
{
dir = MTRandom.GetNextInt(0, availableDir.Count - 1);
}
// 左移动，计算左移动的最大值和最小值
if (dir == 0)
{
maxX = _curPos.x - _wanderAmplitudeX.x;
minX = _curPos.x - _wanderAmplitudeX.y < _wanderRangeX.x ? _wanderRangeX.x : _curPos.x - _wanderAmplitudeX.y;
}
else
{
minX = _curPos.x + _wanderAmplitudeX.x;
maxX = _curPos.x + _wanderAmplitudeX.y > _wanderRangeX.y ? _wanderRangeX.y : _curPos.x + _wanderAmplitudeX.y;
}
toX = MTRandom.GetNextFloat(minX, maxX);
}
// 计算Y的范围 0 = 下, 1 = 上
availableDir.Clear();
// 往下
if (_curPos.y - _wanderAmplitudeY.x >= _wanderRangeY.x)
{
availableDir.Add(0);
}
// 往上
if (_curPos.y + _wanderAmplitudeY.x <= _wanderRangeY.y)
{
availableDir.Add(1);
}
if (availableDir.Count == 0)
{
toY = _curPos.y;
}
else
{
if (_dirMode == DirectionMode.MoveYTowardsPlayer || _dirMode == DirectionMode.MoveTowardsPlayer)
{
//往下移动
if (playerPos.y < _curPos.y)
{
dir = 0;
}
else
{
dir = 1;
}
if (availableDir.IndexOf(dir) == -1)
{
dir = 1 - dir;
}
}
else
{
dir = MTRandom.GetNextInt(0, availableDir.Count - 1);
}
// 向下移动
if (dir == 0)
{
maxY = _curPos.y - _wanderAmplitudeY.x;
minY = _curPos.y - _wanderAmplitudeY.y < _wanderRangeY.x ? _wanderRangeY.x : _curPos.y - _wanderAmplitudeY.y;
}
else
{
minY = _curPos.y + _wanderAmplitudeY.x;
maxY = _curPos.y + _wanderAmplitudeY.y > _wanderRangeY.y ? _wanderRangeY.y : _curPos.y + _wanderAmplitudeY.y;
}
toY = MTRandom.GetNextFloat(minY, maxY);
}
MoveTo(toX, toY, duration, _wanderMode);
//Logger.Log("wander from " + _curPos + " to " + new Vector2(toX, toY));
}
