//called by event in pistol_shot clip
void Fire(SpriteAnimationEvent evt)
{
//if not hold shot button, then just leave
if ( !Input.GetMouseButton(0) )
return;
//get the position of barrel in local space, event will fired when the all the compoents in clip transformed.
SpriteTransform barrelTransform = spriteRenderer.GetSpriteTransform("/root/barrel");
//the bullet spawn position in local space
SpriteTransform bulletSpawnTransform = spriteRenderer.GetSpriteTransform("/root/barrel/bulletSpawnPosition");
if ( barrelTransform != null && bulletSpawnTransform != null )
{
//transform two positions into world space
Vector3 barrelPosition = transform.TransformPoint( barrelTransform.position );
Vector3 bulletSpawnPosition = transform.TransformPoint( bulletSpawnTransform.position );
//set they in same plane
barrelPosition.z = 0f;
bulletSpawnPosition.z = 0f;
//angle of bullet, then it fired
float bulletAngle = Mathf.Sign( bulletSpawnPosition.y - barrelPosition.y ) * Vector3.Angle( (bulletSpawnPosition - barrelPosition), Vector3.right);
//Instantiate the bullet with the position and the rotation
GameObject bullet = Object.Instantiate( bullecPrototype, bulletSpawnPosition, Quaternion.Euler(0f,0f,bulletAngle) ) as GameObject;
//set the bullet movement direction
bullet.GetComponent<Bullet>().direction = (bulletSpawnPosition - barrelPosition).normalized;
}
}
private void FireAnimationEvent(SpriteAnimationState state, int idx)
{
//计算当前时间与最后次更新的时间差
float t = state.time - state.lastTime;
//计算出步进了几个tick
int step = (int)(t / state._clip.tick);
//保存起始的帧索引
int li = state.lastFrameIndex;
//事件数组的长度
int e = state._clip.events.Length;
//搜索时间内的事件
for (float st = state.lastTime; st < state.time; st += state._clip.tick)
{
//得到当前时间的索引
int currFrameIdx = (int)state.curve.Evaluate(st);
//检查是否和上次不一致,如果是则进行一个线性事件搜索
if (li != currFrameIdx)
{
for (int ei = 0; ei < e; ei++)
{
if (state._clip.events[ei].frameIndex == currFrameIdx)
{
SpriteAnimationEvent evt = state._clip.events[ei];
evtList.Add(evt);
break;
}
}
}
state.lastFrameIndex = li = currFrameIdx;
}
if (state.lastFrameIndex != idx)
{
for (int ei = 0; ei < e; ei++)
{
if (state._clip.events[ei].frameIndex == idx)
{
SpriteAnimationEvent evt = state._clip.events[ei];
evtList.Add(evt);
break;
}
}
}
}
public static void SetAnimationClipEvents(SpriteAnimationClip clip, SpriteAnimationEvent[] events)
{
clip.events = events;
clip.CalcEvents();
}
//SpriteAnimation's event handler
//Define two event in clip named Mummy_Attack
//When you play this clip, that will call function StartActtack and EndAttack
void StartAttack( SpriteAnimationEvent evt)
{
//get component's SpriteTransform named "hitbox"
//we use the "hitbox"'s move track to do attacking raycast collision detection
SpriteTransform tran = spriteRenderer.GetSpriteTransform("hitbox");
//transform hitbox position from local space to world space
Matrix4x4 trs = Matrix4x4.TRS(
new Vector3(tran.position.x, tran.position.y),
Quaternion.Euler(0, 0, tran.rotation),
tran.scale);
trs = transform.localToWorldMatrix * trs;
atkHit.startPos = trs.MultiplyPoint( Vector3.zero );
//fill attack hit info
atkHit.currPos = atkHit.startPos;
atkHit.direction.x = moveDirection;
atkHit.attacker = gameObject;
atkHit.attackNo++;
}
void EndAttack( SpriteAnimationEvent evt)
{
}
void EndAttack( SpriteAnimationEvent evt)
{
isNeedAttackcollisionDetect = false;
}
//
public void EndAttack(SpriteAnimationEvent evt)
{
doAttackCollisionDetect = false;
}
//Attack handler, here just called by event in animation clip.
//Usually, you should do collision detection here, or call this function after objects have collision.
public void StartAttack(SpriteAnimationEvent evt)
{
doAttackCollisionDetect = true;
if (moveTarget.targetObject.moveTarget != null)
moveTarget.targetObject.moveTarget = new MoveTarget(this);
//target get damage
moveTarget.targetObject.Damage();
}