1 files changed, 111 insertions, 0 deletions
diff --git a/src/client/views/nodes/trails/SpringUtils.ts b/src/client/views/nodes/trails/SpringUtils.ts
new file mode 100644
index 000000000..5feb1628a
--- /dev/null
+++ b/src/client/views/nodes/trails/SpringUtils.ts
@@ -0,0 +1,111 @@
+import { PresEffect, PresMovement } from './PresEnums';
+
+// the type of slide effect timing (spring-driven)
+export enum SpringType {
+    DEFAULT = 'default',
+    GENTLE = 'gentle',
+    BOUNCY = 'bouncy',
+    CUSTOM = 'custom',
+    QUICK = 'quick',
+}
+
+// settings that control slide effect spring settings
+export interface SpringSettings {
+    type: SpringType;
+    stiffness: number;
+    damping: number;
+    mass: number;
+}
+
+export const easeItems = [
+    {
+        text: 'Ease',
+        val: 'ease',
+    },
+    {
+        text: 'Ease In',
+        val: 'ease-in',
+    },
+    {
+        text: 'Ease Out',
+        val: 'ease-out',
+    },
+    {
+        text: 'Ease In Out',
+        val: 'ease-in-out',
+    },
+    {
+        text: 'Linear',
+        val: 'linear',
+    },
+    {
+        text: 'Custom',
+        val: 'custom',
+    },
+];
+
+export const movementItems = [
+    { text: 'None', val: PresMovement.None },
+    { text: 'Center', val: PresMovement.Center },
+    { text: 'Zoom', val: PresMovement.Zoom },
+    { text: 'Pan', val: PresMovement.Pan },
+    { text: 'Jump', val: PresMovement.Jump },
+];
+
+export const effectItems = Object.values(PresEffect)
+    .filter(v => isNaN(Number(v)))
+    .map(effect => ({
+        text: effect,
+        val: effect,
+    }));
+
+export const effectTimings = [
+    { text: 'Default', val: SpringType.DEFAULT },
+    {
+        text: 'Gentle',
+        val: SpringType.GENTLE,
+    },
+    {
+        text: 'Quick',
+        val: SpringType.QUICK,
+    },
+    {
+        text: 'Bouncy',
+        val: SpringType.BOUNCY,
+    },
+    {
+        text: 'Custom',
+        val: SpringType.CUSTOM,
+    },
+];
+
+// Maps spring names to spring parameters
+export const springMappings: {
+    [key: string]: { stiffness: number; damping: number; mass: number };
+} = {
+    default: {
+        stiffness: 600,
+        damping: 15,
+        mass: 1,
+    },
+    gentle: {
+        stiffness: 100,
+        damping: 15,
+        mass: 1,
+    },
+    quick: {
+        stiffness: 300,
+        damping: 20,
+        mass: 1,
+    },
+    bouncy: {
+        stiffness: 600,
+        damping: 15,
+        mass: 1,
+    },
+    custom: {
+        stiffness: 100,
+        damping: 10,
+        mass: 1,
+    },
+};