damus

nostr ios client
git clone git://jb55.com/damus
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swift_code_10.swift (2360B)

      1 import FlatBuffers
      2 import Foundation
      3 
      4 func run() {
      5   // create a `FlatBufferBuilder`, which will be used to serialize objects
      6   let builder = FlatBufferBuilder(initialSize: 1024)
      7 
      8   let weapon1Name = builder.create(string: "Sword")
      9   let weapon2Name = builder.create(string: "Axe")
     10 
     11   // start creating the weapon by calling startWeapon
     12   let weapon1Start = Weapon.startWeapon(&builder)
     13   Weapon.add(name: weapon1Name, &builder)
     14   Weapon.add(damage: 3, &builder)
     15   // end the object by passing the start point for the weapon 1
     16   let sword = Weapon.endWeapon(&builder, start: weapon1Start)
     17 
     18   let weapon2Start = Weapon.startWeapon(&builder)
     19   Weapon.add(name: weapon2Name, &builder)
     20   Weapon.add(damage: 5, &builder)
     21   let axe = Weapon.endWeapon(&builder, start: weapon2Start)
     22 
     23   // Create a FlatBuffer `vector` that contains offsets to the sword and axe
     24   // we created above.
     25   let weaponsOffset = builder.createVector(ofOffsets: [sword, axe])
     26 
     27   // Name of the Monster.
     28   let name = builder.create(string: "Orc")
     29 
     30   let pathOffset = fbb.createVector(ofStructs: [
     31     Vec3(x: 0, y: 0),
     32     Vec3(x: 5, y: 5),
     33   ])
     34 
     35   // startVector(len, elementSize: MemoryLayout<Offset>.size)
     36   // for o in offsets.reversed() {
     37   //   push(element: o)
     38   // }
     39   // endVector(len: len)
     40 
     41   let orc = Monster.createMonster(
     42     &builder,
     43     pos: Vec3(x: 1, y: 2),
     44     hp: 300,
     45     nameOffset: name,
     46     color: .red,
     47     weaponsVectorOffset: weaponsOffset,
     48     equippedType: .weapon,
     49     equippedOffset: axe,
     50     pathOffset: pathOffset)
     51 
     52   // let start = Monster.startMonster(&builder)
     53   // Monster.add(pos: Vec3(x: 1, y: 2), &builder)
     54   // Monster.add(hp: 300, &builder)
     55   // Monster.add(name: name, &builder)
     56   // Monster.add(color: .red, &builder)
     57   // Monster.addVectorOf(weapons: weaponsOffset, &builder)
     58   // Monster.add(equippedType: .weapon, &builder)
     59   // Monster.addVectorOf(paths: weaponsOffset, &builder)
     60   // Monster.add(equipped: axe, &builder)
     61   // var orc = Monster.endMonster(&builder, start: start)
     62 
     63   // Call `finish(offset:)` to instruct the builder that this monster is complete.
     64   builder.finish(offset: orc)
     65   // This must be called after `finish()`.
     66   // `sizedByteArray` returns the finished buf of type [UInt8].
     67   let buf = builder.sizedByteArray
     68 
     69   // or you can use to get an object of type Data
     70   let bufData = ByteBuffer(data: builder.sizedBuffer)
     71 }