69 lines
2.3 KiB
TypeScript
69 lines
2.3 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import { createTerrain } from "../../src/document/terrains";
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import {
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resizeTerrainGridFromBorderDrag,
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resolveTerrainGridResizeSideFromLocalPosition
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} from "../../src/viewport-three/terrain-grid-resize-controls";
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describe("terrain grid resize viewport controls", () => {
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it("resolves cardinal sides from local border hover positions", () => {
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const terrain = createTerrain({
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id: "terrain-grid-hover-sides",
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sampleCountX: 5,
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sampleCountZ: 5,
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cellSize: 1
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});
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expect(resolveTerrainGridResizeSideFromLocalPosition(terrain, 0.1, 2, 0.25)).toBe(
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"west"
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);
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expect(resolveTerrainGridResizeSideFromLocalPosition(terrain, 3.9, 2, 0.25)).toBe(
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"east"
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);
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expect(resolveTerrainGridResizeSideFromLocalPosition(terrain, 2, 0.1, 0.25)).toBe(
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"south"
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);
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expect(resolveTerrainGridResizeSideFromLocalPosition(terrain, 2, 3.9, 0.25)).toBe(
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"north"
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);
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expect(resolveTerrainGridResizeSideFromLocalPosition(terrain, 2, 2, 0.25)).toBeNull();
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});
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it("drags east and north borders by rounded cell deltas", () => {
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const terrain = createTerrain({
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id: "terrain-grid-drag-east-north",
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sampleCountX: 5,
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sampleCountZ: 5,
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cellSize: 1
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});
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const eastResized = resizeTerrainGridFromBorderDrag(terrain, "east", 1.6);
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const northResized = resizeTerrainGridFromBorderDrag(terrain, "north", -1.2);
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expect(eastResized.sampleCountX).toBe(7);
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expect(eastResized.sampleCountZ).toBe(5);
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expect(eastResized.position).toEqual(terrain.position);
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expect(northResized.sampleCountX).toBe(5);
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expect(northResized.sampleCountZ).toBe(4);
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expect(northResized.position).toEqual(terrain.position);
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});
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it("drags west and south borders by moving the terrain origin", () => {
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const terrain = createTerrain({
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id: "terrain-grid-drag-west-south",
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sampleCountX: 5,
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sampleCountZ: 5,
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cellSize: 1
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});
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const westResized = resizeTerrainGridFromBorderDrag(terrain, "west", 2);
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const southResized = resizeTerrainGridFromBorderDrag(terrain, "south", -2);
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expect(westResized.sampleCountX).toBe(7);
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expect(westResized.position.x).toBe(terrain.position.x - 2);
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expect(southResized.sampleCountZ).toBe(3);
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expect(southResized.position.z).toBe(terrain.position.z + 2);
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});
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});
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