feat: add active node settings

nodes/max/plantarium/noise/src/input.json

@@ -17,14 +17,14 @@
       "min": 0.1,
       "max": 100
     },
-    "seed": {
-      "type": "seed"
-    },
     "fixBottom": {
       "type": "float",
       "hidden": true,
       "min": 0,
       "max": 1
+    },
+    "seed": {
+      "type": "seed"
     }
   }
 }

nodes/max/plantarium/noise/src/lib.rs

@@ -7,6 +7,10 @@ use wasm_bindgen::prelude::*;
 
 include_definition_file!("src/input.json");
 
+fn lerp(a: f32, b: f32, t: f32) -> f32 {
+    a + t * (b - a)
+}
+
 #[wasm_bindgen]
 pub fn execute(input: &[i32]) -> Vec<i32> {
     set_panic_hook();
@@ -16,10 +20,23 @@ pub fn execute(input: &[i32]) -> Vec<i32> {
     let plants = get_args(args[0]);
     let scale = evaluate_float(args[1]);
     let strength = evaluate_float(args[2]);
-    let seed = args[3][0];
+    let _fix_bottom = evaluate_float(args[3]);
+    let fix_bottom = if _fix_bottom.is_finite() {
+        _fix_bottom
+    } else {
+        0.0
+    };
+
+    let seed = args[4][0];
 
     let hasher = PermutationTable::new(seed as u32);
-    log!("scale: {}, strength: {}, seed: {}", scale, strength, seed);
+    log!(
+        "scale: {}, strength: {}, fix_bottom: {}, seed: {}",
+        scale,
+        strength,
+        fix_bottom,
+        seed
+    );
 
     let output: Vec<Vec<i32>> = plants
         .iter()
@@ -33,8 +50,14 @@ pub fn execute(input: &[i32]) -> Vec<i32> {
                 let a = i as f64 / (points - 1) as f64;
                 let px = Vector2::new(0.0, a * scale as f64);
                 let pz = Vector2::new(a * scale as f64, 0.0);
-                let nx = open_simplex_2d(px, &hasher) as f32 * strength * 0.1 * a as f32;
-                let nz = open_simplex_2d(pz, &hasher) as f32 * strength * 0.1 * a as f32;
+                let nx = open_simplex_2d(px, &hasher) as f32
+                    * strength
+                    * 0.1
+                    * lerp(1.0, a as f32, fix_bottom);
+                let nz = open_simplex_2d(pz, &hasher) as f32
+                    * strength
+                    * 0.1
+                    * lerp(1.0, a as f32, fix_bottom);
                 plant[3 + i * 4] = encode_float(decode_float(plant[3 + i * 4]) + nx);
                 plant[5 + i * 4] = encode_float(decode_float(plant[5 + i * 4]) + nz);
             }

nodes/max/plantarium/output/src/inputs.json

@@ -3,10 +3,7 @@
   "outputs": [],
   "inputs": {
     "input": {
-      "type": [
-        "plant",
-        "model"
-      ],
+      "type": "plant",
       "external": true
     },
     "resolution_circle": {