Rename and refactor viewport preview types and functions

src/viewport-three/viewport-transient-state.ts

@@ -3,13 +3,10 @@ import type { ToolMode } from "../core/tool-mode";
 import type { EntityKind } from "../entities/entity-instances";
 import type { ViewportPanelId } from "./viewport-layout";
 
-export interface BoxCreateViewportToolPreview {
-  kind: "box-create";
-  sourcePanelId: ViewportPanelId;
-  center: Vec3 | null;
-}
-
-export type ViewportPlacementPreviewTarget =
+export type CreationTarget =
+  | {
+      kind: "box-brush";
+    }
   | {
       kind: "entity";
       entityKind: EntityKind;
@@ -20,14 +17,14 @@ export type ViewportPlacementPreviewTarget =
       assetId: string;
     };
 
-export interface PlacementViewportToolPreview {
-  kind: "placement";
+export interface CreationViewportToolPreview {
+  kind: "create";
   sourcePanelId: ViewportPanelId;
-  target: ViewportPlacementPreviewTarget;
+  target: CreationTarget;
   center: Vec3 | null;
 }
 
-export type ViewportToolPreview = BoxCreateViewportToolPreview | PlacementViewportToolPreview | { kind: "none" };
+export type ViewportToolPreview = CreationViewportToolPreview | { kind: "none" };
 
 export interface ViewportTransientState {
   toolPreview: ViewportToolPreview;
@@ -46,9 +43,9 @@ export function cloneViewportToolPreview(toolPreview: ViewportToolPreview): View
     return toolPreview;
   }
 
-  if (toolPreview.kind === "placement") {
+  if (toolPreview.kind === "create") {
     return {
-      kind: "placement",
+      kind: "create",
       sourcePanelId: toolPreview.sourcePanelId,
       target:
         toolPreview.target.kind === "entity"
@@ -57,17 +54,36 @@ export function cloneViewportToolPreview(toolPreview: ViewportToolPreview): View
               entityKind: toolPreview.target.entityKind,
               audioAssetId: toolPreview.target.audioAssetId
             }
-          : {
-              kind: "model-instance",
-              assetId: toolPreview.target.assetId
-            },
+          : toolPreview.target.kind === "model-instance"
+            ? {
+                kind: "model-instance",
+                assetId: toolPreview.target.assetId
+              }
+            : {
+                kind: "box-brush"
+              },
       center: toolPreview.center === null ? null : { ...toolPreview.center }
     };
   }
 
   return {
-    kind: "box-create",
+    kind: "create",
     sourcePanelId: toolPreview.sourcePanelId,
+    target:
+      toolPreview.target.kind === "entity"
+        ? {
+            kind: "entity",
+            entityKind: toolPreview.target.entityKind,
+            audioAssetId: toolPreview.target.audioAssetId
+          }
+        : toolPreview.target.kind === "model-instance"
+          ? {
+              kind: "model-instance",
+              assetId: toolPreview.target.assetId
+            }
+          : {
+              kind: "box-brush"
+            },
     center: toolPreview.center === null ? null : { ...toolPreview.center }
   };
 }
@@ -81,36 +97,28 @@ export function areViewportToolPreviewsEqual(left: ViewportToolPreview, right: V
     return true;
   }
 
-  if (left.kind === "placement" && right.kind === "placement") {
-    if (left.sourcePanelId !== right.sourcePanelId) {
-      return false;
-    }
-
-    if (left.target.kind !== right.target.kind) {
-      return false;
-    }
-
-    if (left.target.kind === "entity" && right.target.kind === "entity") {
-      if (left.target.entityKind !== right.target.entityKind || left.target.audioAssetId !== right.target.audioAssetId) {
-        return false;
-      }
-    }
-
-    if (left.target.kind === "model-instance" && right.target.kind === "model-instance" && left.target.assetId !== right.target.assetId) {
-      return false;
-    }
-
-    if (left.center === null || right.center === null) {
-      return left.center === right.center;
-    }
-
-    return left.center.x === right.center.x && left.center.y === right.center.y && left.center.z === right.center.z;
+  if (left.kind !== "create" || right.kind !== "create") {
+    return false;
   }
 
   if (left.sourcePanelId !== right.sourcePanelId) {
     return false;
   }
 
+  if (left.target.kind !== right.target.kind) {
+    return false;
+  }
+
+  if (left.target.kind === "entity" && right.target.kind === "entity") {
+    if (left.target.entityKind !== right.target.entityKind || left.target.audioAssetId !== right.target.audioAssetId) {
+      return false;
+    }
+  }
+
+  if (left.target.kind === "model-instance" && right.target.kind === "model-instance" && left.target.assetId !== right.target.assetId) {
+    return false;
+  }
+
   if (left.center === null || right.center === null) {
     return left.center === right.center;
   }
@@ -123,13 +131,5 @@ export function isViewportToolPreviewCompatible(toolMode: ToolMode, toolPreview:
     return true;
   }
 
-  if (toolMode === "box-create") {
-    return toolPreview.kind === "box-create";
-  }
-
-  if (toolMode === "place") {
-    return toolPreview.kind === "placement";
-  }
-
-  return false;
+  return toolMode === "create" && toolPreview.kind === "create";
 }