ilyakooo0/metal-metaballs
1
0
Fork 0
mirror of https://github.com/ilyakooo0/metal-metaballs.git synced 2024-09-11 10:35:56 +03:00
Code Issues Projects Releases Wiki Activity

Put the metaballs in circles.

Browse Source
This commit is contained in:
vinivendra 2016-02-25 15:41:04 -05:00
parent 5b0bad6c8f
commit 500614ebfd
1 changed files with 22 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
PixelImage/ViewController.swift
View File

@ -23,27 +23,25 @@ class ViewController: UIViewController, MetaballDataSource {
let recognizer = UIPanGestureRecognizer(target: self, action: "handlePan:")
view.addGestureRecognizer(recognizer)
let lowX = screenWidth / 3
let highX = screenWidth - lowX
let lowY = screenHeight / 4
let highY = screenHeight - lowY
let positions =
[CGPoint(x: lowX, y: lowY),
CGPoint(x: highX, y: lowY),
CGPoint(x: highX, y: highY),
CGPoint(x: lowX, y: highY)]
var positions = [CGPoint]()
positions.append(CGPoint(x: Double(screenWidth) / 2, y: Double(screenHeight) / 2))
for i in 1...5 {
let sine = sin(Double(i) * 2 * M_PI / 5)
let cosine = cos(Double(i) * 2 * M_PI / 5)
positions.append(CGPoint(x: Double(screenWidth) / 2 + sine * 150,
y: Double(screenHeight) / 2 + cosine * 150))
}
let colors =
[UIColor(red255: 90, green: 170, blue: 170, alpha: 1.0),
UIColor(red255: 90, green: 170, blue: 170, alpha: 1.0),
[UIColor(red255: 110, green: 220, blue: 220, alpha: 1.0),
UIColor(red255: 250, green: 235, blue: 50, alpha: 1.0),
UIColor(red255: 110, green: 220, blue: 220, alpha: 1.0),
UIColor(red255: 250, green: 235, blue: 50, alpha: 1.0)]
UIColor(red255: 90, green: 170, blue: 170, alpha: 1.0),
UIColor(red255: 90, green: 170, blue: 170, alpha: 1.0),
UIColor(red255: 110, green: 220, blue: 220, alpha: 1.0)]
let metaballs = zip(positions, colors).map { Metaball(position: $0.0, color: $0.1) }
metaballGraph = Graph(vertices: metaballs)
metaballGraph.addEdge(0, 1)
metaballGraph.addEdge(0, 3)
metaballGraph.addEdge(1, 2)
metaballGraph.addEdge(2, 3)
let metaballViewFrame = screenRect
renderer = MetalMetaballRenderer(dataSource: self, frame: metaballViewFrame)
@ -54,10 +52,18 @@ class ViewController: UIViewController, MetaballDataSource {
metaballView.addSubview(metaball)
}
addEdge(0, 1)
addEdge(0, 2)
addEdge(0, 3)
addEdge(0, 4)
addEdge(0, 5)
delay {
self.removeEdge(0, 1)
self.removeEdge(0, 2)
self.removeEdge(0, 3)
self.removeEdge(0, 4)
self.removeEdge(0, 5)
}
renderer.state = .Running