| 54 | |
| 55 | |
| 56 | class Block( |
| 57 | var start: Int = 0, |
| 58 | var startConstraint: ((Block?, Block, List<Block>) -> Int)? = null, |
| 59 | var duration: Int = -1, |
| 60 | var durationConstraint: ((Block?, Block, List<Block>) -> Int)? = null, |
| 61 | val name: String = "", |
| 62 | val apply: suspend SequenceScope<Any>.() -> Unit |
| 63 | ) { |
| 64 | // children for the purposes of figuring out the duration |
| 65 | // start of these is relative to the start of this |
| 66 | val childrenDuration = mutableListOf<Block>() |
| 67 | val childrenStart = mutableListOf<Block>() |
| 68 | val children = mutableListOf<Block>() |
| 69 | |
| 70 | var parent: Block? = null |
| 71 | |
| 72 | |
| 73 | var effectiveStart = 0 |
| 74 | |
| 75 | var seq = sequence(apply).iterator() |
| 76 | |
| 77 | fun reset() { |
| 78 | seq = sequence(apply).iterator() |
| 79 | } |
| 80 | |
| 81 | fun and(b: BlockBuilder.() -> Unit): Block { |
| 82 | BlockBuilder(this).apply(b) |
| 83 | return this |
| 84 | } |
| 85 | |
| 86 | fun preFixDurations() { |
| 87 | startConstraint?.let { |
| 88 | // if (childrenStart.size > 0) |
| 89 | start = it(parent, this, childrenStart) |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | fun postFixDurations() { |
| 94 | durationConstraint?.let { |
| 95 | duration = it(parent, this, childrenDuration) |
| 96 | if (duration < 0) duration = 0 |
| 97 | } |
| 98 | |
| 99 | } |
| 100 | |
| 101 | fun runAtTime(realTime: Double): Boolean { |
| 102 | _block.set(null) |
| 103 | time = realTime |
| 104 | return inBlock(this) { |
| 105 | if (!seq.hasNext()) |
| 106 | false |
| 107 | else { |
| 108 | seq.next() |
| 109 | true |
| 110 | } |
| 111 | } |
| 112 | } |
| 113 | |