96 lines
3.4 KiB
Swift
96 lines
3.4 KiB
Swift
//
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/**
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* Copyright (c) 2018 Razeware LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* Notwithstanding the foregoing, you may not use, copy, modify, merge, publish,
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* distribute, sublicense, create a derivative work, and/or sell copies of the
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* Software in any work that is designed, intended, or marketed for pedagogical or
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* instructional purposes related to programming, coding, application development,
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* or information technology. Permission for such use, copying, modification,
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* merger, publication, distribution, sublicensing, creation of derivative works,
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* or sale is expressly withheld.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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import Foundation
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class GrassScene: Scene {
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let ground = Model(name: "ground.obj")
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var grass1: Nature!
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var grass2: Nature!
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var grass3: Nature!
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let grassSize: Float = 5
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override func setupScene() {
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skybox = Skybox(textureName: nil)
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ground.tiling = 16
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add(node: ground)
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var grass: [Nature] = []
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var position: Float = 0
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var instanceCount = 180000
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var width: Float = 10
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while instanceCount > 0 {
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let g = setupGrass(instanceCount: instanceCount, width: width)
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grass.append(g)
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add(node: g)
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g.position.z = position
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position += grassSize
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instanceCount /= 2
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width *= 1.3
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}
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inputController.player = camera
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camera.position.z = -1
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camera.position.y = 1
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}
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func setupGrass(instanceCount: Int, width: Float) -> Nature {
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let grassCount = 7
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var textureNames: [String] = []
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for i in 1...grassCount {
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textureNames.append("grass" + String(format: "%02d", i))
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}
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let morphCount = 4
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var morphTargetNames: [String] = []
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for i in 1...morphCount {
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morphTargetNames.append("grass" + String(format: "%02d", i))
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}
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let grass = Nature(name: "grass", instanceCount: instanceCount,
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textureNames: textureNames,
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morphTargetNames: morphTargetNames)
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for i in 0..<instanceCount {
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var transform = Transform()
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transform.position.x = .random(in: -width..<width)
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transform.position.z = .random(in: 0..<grassSize)
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transform.rotation.y = .random(in: -Float.pi..<Float.pi)
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let textureId = Int.random(in: 0..<textureNames.count)
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let morphId = Int.random(in: 0..<morphCount)
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grass.updateBuffer(instance: i, transform: transform,
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textureID: textureId, morphTargetID: morphId)
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}
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return grass
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}
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}
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