refactor: split animation helpers by domain

1 files changed, 49 insertions, 0 deletions

diff --git a/apps/web/src/rendering/animation-values.ts b/apps/web/src/rendering/animation-values.ts
new file mode 100644
index 00000000..8e8b4528
--- /dev/null
+++ b/apps/web/src/rendering/animation-values.ts
@@ -0,0 +1,49 @@
+import type { ElementAnimations } from "@/animation/types";
+import { resolveAnimationPathValueAtTime } from "@/animation";
+import type { Transform } from "./index";
+
+export function resolveTransformAtTime({
+	baseTransform,
+	animations,
+	localTime,
+}: {
+	baseTransform: Transform;
+	animations: ElementAnimations | undefined;
+	localTime: number;
+}): Transform {
+	const safeLocalTime = Math.max(0, localTime);
+	return {
+		position: {
+			x: resolveAnimationPathValueAtTime({
+				animations,
+				propertyPath: "transform.positionX",
+				localTime: safeLocalTime,
+				fallbackValue: baseTransform.position.x,
+			}),
+			y: resolveAnimationPathValueAtTime({
+				animations,
+				propertyPath: "transform.positionY",
+				localTime: safeLocalTime,
+				fallbackValue: baseTransform.position.y,
+			}),
+		},
+		scaleX: resolveAnimationPathValueAtTime({
+			animations,
+			propertyPath: "transform.scaleX",
+			localTime: safeLocalTime,
+			fallbackValue: baseTransform.scaleX,
+		}),
+		scaleY: resolveAnimationPathValueAtTime({
+			animations,
+			propertyPath: "transform.scaleY",
+			localTime: safeLocalTime,
+			fallbackValue: baseTransform.scaleY,
+		}),
+		rotate: resolveAnimationPathValueAtTime({
+			animations,
+			propertyPath: "transform.rotate",
+			localTime: safeLocalTime,
+			fallbackValue: baseTransform.rotate,
+		}),
+	};
+}