add examples

7 files changed, 50 insertions, 8 deletions

diff --git a/Cargo.lock b/Cargo.lock
index e46a92d..bccfffc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1682,6 +1682,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2db585e1d738fc771bf08a151420d3ed193d9d895a36df7f6f8a9456b911ddc"
 
 [[package]]
+name = "lazy_static"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
+
+[[package]]
 name = "libc"
 version = "0.2.178"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1904,6 +1910,7 @@ dependencies = [
  "egui-snarl",
  "enum_dispatch",
  "itertools",
+ "lazy_static",
  "log",
  "rfd",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index 3f87f95..41d3c4a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,6 +11,7 @@ egui-snarl = { version = "0.9", features = ["serde", "egui-probe"] }
 # encase = "0.12.0"
 enum_dispatch = "0.3.13"
 itertools = "0.14.0"
+lazy_static = "1.5.0"
 log = { version = "0.4.29", features = ["serde", "std"] }
 rfd = "0.17.2"
 serde = { version = "1.0", features = ["derive"] }
diff --git a/src/examples/circle.nt.json b/src/examples/circle.nt.json
new file mode 100644
index 0000000..7b23fd6
--- /dev/null
+++ b/src/examples/circle.nt.json
@@ -0,0 +1 @@
+{"nodes":{"0":{"value":{"Input":"UV"},"pos":{"x":23.0,"y":276.0},"open":true},"1":{"value":{"Output":null},"pos":{"x":719.9373,"y":317.1626},"open":true},"2":{"value":{"Builtin":{"BinArithmetic":"Subtract"}},"pos":{"x":262.84097,"y":291.12704},"open":true},"3":{"value":{"Constant":{"Float":0.5}},"pos":{"x":32.98228,"y":373.1446},"open":true},"4":{"value":{"Builtin":{"Length":null}},"pos":{"x":442.7501,"y":315.54358},"open":true},"5":{"value":{"Builtin":{"Step":null}},"pos":{"x":600.6585,"y":313.66373},"open":true},"6":{"value":{"Constant":{"Float":0.25}},"pos":{"x":405.15283,"y":393.55762},"open":true}},"wires":[{"out_pin":{"node":3,"output":0},"in_pin":{"node":2,"input":1}},{"out_pin":{"node":0,"output":0},"in_pin":{"node":2,"input":0}},{"out_pin":{"node":4,"output":0},"in_pin":{"node":5,"input":0}},{"out_pin":{"node":2,"output":0},"in_pin":{"node":4,"input":0}},{"out_pin":{"node":6,"output":0},"in_pin":{"node":5,"input":1}},{"out_pin":{"node":5,"output":0},"in_pin":{"node":1,"input":0}}]}
\ No newline at end of file
diff --git a/src/examples/grid.nt.json b/src/examples/grid.nt.json
new file mode 100644
index 0000000..bce2f2f
--- /dev/null
+++ b/src/examples/grid.nt.json
@@ -0,0 +1 @@
+{"nodes":{"0":{"value":{"Input":"UV"},"pos":{"x":23.0,"y":276.0},"open":true},"1":{"value":{"Output":null},"pos":{"x":969.4376,"y":279.88113},"open":true},"2":{"value":{"Builtin":{"BinArithmetic":"Subtract"}},"pos":{"x":563.9617,"y":233.77068},"open":true},"3":{"value":{"Constant":{"Float":0.5}},"pos":{"x":390.50125,"y":136.68448},"open":true},"4":{"value":{"Builtin":{"Length":null}},"pos":{"x":722.36237,"y":256.75336},"open":true},"5":{"value":{"Builtin":{"Step":null}},"pos":{"x":857.32837,"y":264.91104},"open":true},"6":{"value":{"Constant":{"Float":0.3}},"pos":{"x":836.6884,"y":469.34085},"open":true},"7":{"value":{"Constant":{"Float":5.0}},"pos":{"x":85.44553,"y":179.8347},"open":true},"8":{"value":{"Builtin":{"BinArithmetic":"Multiply"}},"pos":{"x":275.5028,"y":255.55971},"open":true},"9":{"value":{"Builtin":{"Thru1":"Fract"}},"pos":{"x":437.21582,"y":241.2209},"open":true},"11":{"value":{"Builtin":{"VecVecToScalar":"Dot"}},"pos":{"x":568.6812,"y":334.2151},"open":true},"12":{"value":{"Builtin":{"BinArithmetic":"Add"}},"pos":{"x":697.3367,"y":361.72086},"open":true},"13":{"value":{"Constant":{"Vec2":[1.0,7.0]}},"pos":{"x":407.19614,"y":398.0998},"open":true},"14":{"value":{"Input":"Time"},"pos":{"x":411.6325,"y":494.81256},"open":true},"15":{"value":{"Builtin":{"Thru1":"Cos"}},"pos":{"x":807.3596,"y":375.0301},"open":true},"16":{"value":{"Builtin":{"Thru1":"Abs"}},"pos":{"x":953.7607,"y":378.5792},"open":true},"17":{"value":{"Builtin":{"BinArithmetic":"Multiply"}},"pos":{"x":1046.0377,"y":403.4229},"open":true},"18":{"value":{"Builtin":{"Thru1":"Floor"}},"pos":{"x":432.92688,"y":317.35666},"open":true}},"wires":[{"out_pin":{"node":4,"output":0},"in_pin":{"node":5,"input":0}},{"out_pin":{"node":5,"output":0},"in_pin":{"node":1,"input":0}},{"out_pin":{"node":14,"output":0},"in_pin":{"node":12,"input":1}},{"out_pin":{"node":16,"output":0},"in_pin":{"node":17,"input":0}},{"out_pin":{"node":18,"output":0},"in_pin":{"node":11,"input":0}},{"out_pin":{"node":8,"output":0},"in_pin":{"node":18,"input":0}},{"out_pin":{"node":12,"output":0},"in_pin":{"node":15,"input":0}},{"out_pin":{"node":17,"output":0},"in_pin":{"node":5,"input":1}},{"out_pin":{"node":15,"output":0},"in_pin":{"node":16,"input":0}},{"out_pin":{"node":0,"output":0},"in_pin":{"node":8,"input":1}},{"out_pin":{"node":13,"output":0},"in_pin":{"node":11,"input":1}},{"out_pin":{"node":2,"output":0},"in_pin":{"node":4,"input":0}},{"out_pin":{"node":8,"output":0},"in_pin":{"node":9,"input":0}},{"out_pin":{"node":6,"output":0},"in_pin":{"node":17,"input":1}},{"out_pin":{"node":7,"output":0},"in_pin":{"node":8,"input":0}},{"out_pin":{"node":3,"output":0},"in_pin":{"node":2,"input":0}},{"out_pin":{"node":9,"output":0},"in_pin":{"node":2,"input":1}},{"out_pin":{"node":11,"output":0},"in_pin":{"node":12,"input":0}}]}
\ No newline at end of file
diff --git a/src/examples/shadertoy_plasma.nt.json b/src/examples/shadertoy_plasma.nt.json
new file mode 100644
index 0000000..bc7a97a
--- /dev/null
+++ b/src/examples/shadertoy_plasma.nt.json
@@ -0,0 +1 @@
+{"nodes":{"0":{"value":{"Input":"UV"},"pos":{"x":163.98965,"y":294.79865},"open":true},"1":{"value":{"Output":null},"pos":{"x":1357.2115,"y":327.50165},"open":true},"2":{"value":{"Builtin":{"BinArithmetic":"Multiply"}},"pos":{"x":1100.7025,"y":315.54364},"open":true},"3":{"value":{"Constant":{"Float":0.5}},"pos":{"x":922.1152,"y":389.79797},"open":true},"4":{"value":{"Builtin":{"BinArithmetic":"Add"}},"pos":{"x":1241.6924,"y":324.00272},"open":true},"7":{"value":{"Input":"Time"},"pos":{"x":549.9027,"y":214.97101},"open":true},"8":{"value":{"Conversion":{"SplitVector":null}},"pos":{"x":357.21643,"y":295.80508},"open":true},"9":{"value":{"Conversion":{"CombineVector":null}},"pos":{"x":530.1639,"y":293.92538},"open":true},"10":{"value":{"Builtin":{"BinArithmetic":"Add"}},"pos":{"x":761.3871,"y":255.3878},"open":true},"11":{"value":{"Builtin":{"BinArithmetic":"Add"}},"pos":{"x":875.119,"y":307.0838},"open":true},"12":{"value":{"Constant":{"Vec3":[0.0,2.0,4.0]}},"pos":{"x":726.6099,"y":349.38098},"open":true},"13":{"value":{"Builtin":{"Thru1":"Cos"}},"pos":{"x":988.8504,"y":308.02408},"open":true}},"wires":[{"out_pin":{"node":12,"output":0},"in_pin":{"node":11,"input":1}},{"out_pin":{"node":4,"output":0},"in_pin":{"node":1,"input":0}},{"out_pin":{"node":8,"output":1},"in_pin":{"node":9,"input":1}},{"out_pin":{"node":11,"output":0},"in_pin":{"node":13,"input":0}},{"out_pin":{"node":9,"output":0},"in_pin":{"node":10,"input":1}},{"out_pin":{"node":3,"output":0},"in_pin":{"node":2,"input":1}},{"out_pin":{"node":8,"output":0},"in_pin":{"node":9,"input":2}},{"out_pin":{"node":3,"output":0},"in_pin":{"node":4,"input":1}},{"out_pin":{"node":7,"output":0},"in_pin":{"node":10,"input":0}},{"out_pin":{"node":13,"output":0},"in_pin":{"node":2,"input":0}},{"out_pin":{"node":0,"output":0},"in_pin":{"node":8,"input":0}},{"out_pin":{"node":2,"output":0},"in_pin":{"node":4,"input":0}},{"out_pin":{"node":8,"output":0},"in_pin":{"node":9,"input":0}},{"out_pin":{"node":10,"output":0},"in_pin":{"node":11,"input":0}}]}
\ No newline at end of file
diff --git a/src/examples/uv_ramp.nt.json b/src/examples/uv_ramp.nt.json
new file mode 100644
index 0000000..6a7125c
--- /dev/null
+++ b/src/examples/uv_ramp.nt.json
@@ -0,0 +1 @@
+{"nodes":{"0":{"value":{"Input":"UV"},"pos":{"x":47.4382,"y":273.1802},"open":true},"1":{"value":{"Output":null},"pos":{"x":236.81255,"y":277.68546},"open":true}},"wires":[{"out_pin":{"node":0,"output":0},"in_pin":{"node":1,"input":0}}]}
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 25c6062..e9eb1e1 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,8 +5,9 @@ use egui_snarl::{
     InPin, NodeId, OutPin, Snarl,
     ui::{NodeLayout, PinInfo, PinPlacement, SnarlStyle, SnarlViewer, SnarlWidget},
 };
-use library::NodeIndex;
+use lazy_static::lazy_static;
 use log::*;
+use std::collections::HashMap;
 
 mod library;
 mod node;
@@ -16,6 +17,7 @@ mod types;
 #[cfg(target_arch = "wasm32")]
 mod wasm;
 
+use library::NodeIndex;
 use node::{AnyNode, ConcreteNode};
 use snarl_ext::{Compilable, WithSignatures};
 use types::{Dimension, FloatPrecision, ScalarType, Type};
@@ -160,6 +162,21 @@ pub struct App {
     preview: preview::Custom3d,
 }
 
+lazy_static! {
+    static ref EXAMPLES: HashMap<&'static str, &'static str> = {
+        let mut m = HashMap::new();
+
+        m.insert("UV Ramp", include_str!("./examples/uv_ramp.nt.json"));
+        m.insert("Circle", include_str!("./examples/circle.nt.json"));
+        m.insert(
+            "Shadertoy Plasma",
+            include_str!("./examples/shadertoy_plasma.nt.json"),
+        );
+        m.insert("Circle Grid", include_str!("./examples/grid.nt.json"));
+        m
+    };
+}
+
 const fn default_style() -> SnarlStyle {
     SnarlStyle {
         node_layout: Some(NodeLayout::coil()),
@@ -194,13 +211,12 @@ impl App {
     pub fn new(cx: &eframe::CreationContext) -> Self {
         cx.egui_ctx.style_mut(|style| style.animation_time *= 10.0);
 
-        let snarl = cx.storage.map_or_else(Snarl::new, |storage| {
-            storage
-                .get_string("snarl")
-                .and_then(|snarl| serde_json::from_str(&snarl).ok())
-                .unwrap_or_default()
-        });
-        // let snarl = Snarl::new();
+        let snarl: Snarl<AnyNode> = cx
+            .storage
+            .and_then(|storage| storage.get_string("snarl"))
+            .or(EXAMPLES.get("Shadertoy Plasma").map(|s| s.to_string()))
+            .and_then(|data| serde_json::from_str(&data).ok())
+            .unwrap_or_default();
 
         App {
             snarl,
@@ -238,6 +254,18 @@ impl eframe::App for App {
                             .unwrap();
                     }
 
+                    ui.menu_button("Load Example", |ui| {
+                        for label in EXAMPLES.keys() {
+                            if ui.button(*label).clicked() {
+                                self.snarl =
+                                    serde_json::from_str(EXAMPLES.get(label).unwrap()).unwrap();
+                                self.viewer.dirty = true;
+                            }
+                        }
+                    });
+
+                    ui.separator();
+
                     #[cfg(not(target_arch = "wasm32"))]
                     if ui.button("Save").clicked() {
                         if let Some(path) = rfd::FileDialog::new()
@@ -255,6 +283,8 @@ impl eframe::App for App {
                             .expect("successful download");
                     }
 
+                    ui.separator();
+
                     if ui.button("Clear All").clicked() {
                         self.snarl = Snarl::default();
                     }