AI SwiftUI

Can ChatGPT draw a Christmas tree in SwiftUI?

Here’s the prompt I gave ChatGPT:

Draw a Christmas tree using SwiftUI

Here’s the code I got:

struct ChristmasTree: View {
    var body: some View {
        ZStack {
            // draw the tree trunk
                .frame(width: 20, height: 100)

            // draw the tree branches
            ForEach(0..<5) { i in
                HStack(spacing: 5) {
                    ForEach(0..<5-i) { j in
                            .frame(width: 10, height: 10)
                .offset(x: 0, y: -10 * CGFloat(i))

            // draw the star on top of the tree
                .frame(width: 10, height: 10)
                .offset(x: 0, y: -50)

The only major issue syntax-wise is that Triangle() isn’t defined – where did it get that?

A quick visit to Hacking with Swift had this nice snippet, which I dropped in.

struct Triangle: Shape {
    func path(in rect: CGRect) -> Path {
        var path = Path()

        path.move(to: CGPoint(x: rect.midX, y: rect.minY))
        path.addLine(to: CGPoint(x: rect.minX, y: rect.maxY))
        path.addLine(to: CGPoint(x: rect.maxX, y: rect.maxY))
        path.addLine(to: CGPoint(x: rect.midX, y: rect.minY))

        return path

Now we can compile and…. tada!

A Christmas tree in SwiftUI drawn by ChatGPT

Not great, but darn impressive! 🎄🤯

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