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87 lines
2.5 KiB
87 lines
2.5 KiB
BesselAnimManager = BesselAnimManager or BaseClass()
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function BesselAnimManager:__init()
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BesselAnimManager.Instance = self
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-- obj = {
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-- start_pos
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-- key_pos
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-- end_pos
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-- start_time
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-- total_time
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-- update_func
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-- }
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self.obj_list = {}
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self.obj_index = 1
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Runner.Instance:AddRunObj(self, 3)
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end
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function BesselAnimManager:getInstance()
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if BesselAnimManager.Instance==nil then
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BesselAnimManager.New()
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end
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return BesselAnimManager.Instance
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end
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function BesselAnimManager:__delete()
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for id, obj in pairs(self.obj_list) do
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obj.update_func(1, obj.end_pos)
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end
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self.obj_list = {}
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end
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--[[
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/**
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*创建贝赛尔曲线动画，动画结束后会自动移除，不需要手动Remove
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* @param start_pos 起点
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* @param end_pos 终点
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* @param total_time 动画时长
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* @param update_func 每帧回调的函数，参数(p, pos)
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* @param key_p 关键点在起点终点连线上的投影的位置，0表示在起点处，1表示在终点处，但是可为负或大于1
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* @param key_dist 关键点到起点终点连线的距离，可有正负，表示在连线的两侧
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*/ ]]
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function BesselAnimManager:AddBesselAnimNoKey(start_pos, end_pos, total_time, update_func, key_p, key_dist)
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key_p = key_p or 0.5
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key_dist = key_dist or (Vector2.Magnitude((start_pos - end_pos)) / 3)
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local key_pos = GameMath.GetVerticlePoint(start_pos, end_pos, key_p, key_dist)
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return self:AddBesselAnimWithKey(start_pos, key_pos, end_pos, total_time, update_func)
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end
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--[[
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/**
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*创建贝赛尔曲线动画，动画结束后会自动移除，不需要手动Remove
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* @param start_pos 起点
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* @param key_pos 关键点
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* @param end_pos 终点
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* @param total_time 动画时长
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* @param update_func 每帧回调的函数，参数(p, pos)
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*/ ]]
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function BesselAnimManager:AddBesselAnimWithKey(start_pos, key_pos, end_pos, total_time, update_func)
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local obj = {
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start_pos = start_pos,
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key_pos = key_pos,
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end_pos = end_pos,
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start_time = Status.NowTime,
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total_time = total_time,
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update_func = update_func
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}
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self.obj_list[self.obj_index] = obj
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self.obj_index = self.obj_index + 1
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return self.obj_index - 1
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end
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function BesselAnimManager:Update(now_time, elapsed_time)
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for id, obj in pairs(self.obj_list) do
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local p = (now_time - obj.start_time) / obj.total_time
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if p > 1 then
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obj.update_func(p, obj.end_pos)
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self.obj_list[id] = nil
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else
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local posx,pos_y = ParticleBessel.GetCurvePoint(obj.start_pos, obj.key_pos, obj.end_pos, p)
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obj.update_func(p, posx, pos_y)
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end
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end
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end
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