#include "line.j"
struct Broadcast

    timer recorder
    real progress
    real tick
    integer progressLine
    Line array lines[100]
    integer lineLength = 0
    string name

    static method create takes string name returns thistype
        local thistype b = thistype.allocate()
        set b.name = name
        set b.lineLength = 0
        set b.recorder = null
        set b.progress = 0
        set b.progressLine = 0
        return b
    endmethod

    method getLength takes nothing returns integer
        return this.lineLength
    endmethod

    method add takes Line line returns thistype
        set this.lines[this.lineLength] = line
        set this.lineLength = this.lineLength + 1
        return this
    endmethod

    method ready takes real tick returns thistype
        set this.recorder = CreateTimer()
        set this.tick = tick
        return this
    endmethod

    method nextTick takes nothing returns real
        if this.getLength() == 0 then
            return - 4000 // 当前播片没有台词,立即结束
        endif
        if this.progress >= this.lines[this.progressLine].begin then
            call this.lines[this.progressLine].say()
            set this.progressLine = this.progressLine + 1
            if this.progressLine >= this.getLength() then
                return - 2000 // 播片台词播放完毕
            endif
        endif
        set this.progress = this.progress + this.tick
        return this.progress // 正常运行返回当前播片进度
    endmethod

endstruct