File size: 9,462 Bytes
970fc3e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 | import * as THREE from "three";
import { createDraftTool } from "./draft-tool.mjs";
import { REGION_LIMITS, regionFrame, framePoint, frameUV, closeRegionStroke, validateRegions, regionObjectId } from "../../shared/interaction-regions.mjs";
import { surfaceFrame, surfaceUV } from "../../shared/region-surfaces.mjs";
import { isDoor } from "../../shared/doors.mjs";
function createInteractionDraftTool(options) {
const { world, pickGround, pickObject } = options, path = createDraftTool(options), group = new THREE.Group();
world.add(group);
group.visible = false;
let scene, door, side, regions = [], stroke = null, owner = null, enabled = false, message = "", version = 0, forceFloor = false;
const colour = (surface) => surface === "floor" ? 3198395 : 15562137;
function dispose() {
for (const child of [...group.children]) {
child.geometry?.dispose();
child.material?.dispose();
group.remove(child);
}
}
function outline(points, color, closed = true) {
if (!points.length) return;
const vertices = (closed ? [...points, points[0]] : points).map((p) => new THREE.Vector3(...p)), line = new THREE.Line(new THREE.BufferGeometry().setFromPoints(vertices), new THREE.LineBasicMaterial({ color, depthTest: false, toneMapped: false }));
line.renderOrder = 15;
group.add(line);
}
function paint() {
version++;
dispose();
if (!enabled) return;
if (isDoor(door)) {
const frame = regionFrame(scene, { doorId: door.id, surface: "door-frame", side });
const w = door.size[0] / 2 + 0.6, lo = -door.size[1] / 2 - 0.1, hi = door.size[1] / 2 + 0.3;
outline([[-w, lo], [w, lo], [w, hi], [-w, hi]].map((p) => framePoint(frame, p)), 7571094);
}
for (const r of regions) outline(r.points.map((p) => framePoint(regionFrame(scene, r), p)), colour(r.surface));
if (stroke) outline(stroke.points.map((p) => framePoint(stroke.frame, p)), colour(stroke.surface), false);
}
function hit(ray, locked = stroke) {
world.updateMatrixWorld(true);
const ground = pickGround(ray);
if (locked?.surface === "floor" || !locked && forceFloor) return ground && (!locked || Math.abs(ground.y - locked.floorY) < 0.05) ? { point: [ground.x, ground.z], surface: "floor", floorY: ground.y, frame: regionFrame(scene, { surface: "floor", floorY: ground.y }) } : null;
const objectHit = pickObject?.(ray, door.id);
if (objectHit && (!locked || locked.surface === "object-surface")) {
const frameData = locked?.frameData || surfaceFrame(door, objectHit.point, objectHit.normal);
const frame2 = regionFrame(scene, { objectId: door.id, surface: "object-surface", frame: frameData });
if (new THREE.Vector3(...objectHit.normal).dot(new THREE.Vector3(...frame2.normal)) < 0.25) return null;
return { point: surfaceUV(door, frameData, objectHit.point), surface: "object-surface", frameData, frame: frame2 };
}
if (locked?.surface === "object-surface") return null;
if (!isDoor(door)) return !locked && ground ? { point: [ground.x, ground.z], surface: "floor", floorY: ground.y, frame: regionFrame(scene, { surface: "floor", floorY: ground.y }) } : null;
const origin = world.worldToLocal(ray.ray.origin.clone()), direction = ray.ray.direction.clone().transformDirection(new THREE.Matrix4().copy(world.matrixWorld).invert()), localRay = new THREE.Ray(origin, direction);
const frame = locked?.frame || regionFrame(scene, { doorId: door.id, surface: "door-frame", side });
const plane = new THREE.Plane().setFromNormalAndCoplanarPoint(new THREE.Vector3(...frame.normal), new THREE.Vector3(...frame.origin)), point = localRay.intersectPlane(plane, new THREE.Vector3());
const uv = point && frameUV(frame, point.toArray());
const inFrame = uv && Math.abs(uv[0]) <= door.size[0] / 2 + 0.6 && uv[1] >= -door.size[1] / 2 - 0.1 && uv[1] <= door.size[1] / 2 + 0.3;
const doorHit = inFrame ? { point: uv, surface: "door-frame", side, frame } : null;
if (locked) return doorHit;
if (doorHit && (!ground || origin.distanceTo(point) < origin.distanceTo(ground))) return doorHit;
return ground ? { point: [ground.x, ground.z], surface: "floor", floorY: ground.y, frame: regionFrame(scene, { surface: "floor", floorY: ground.y }) } : null;
}
function interrupt(reason) {
if (stroke) {
stroke = null;
owner = null;
message = reason || "Stroke cancelled. Completed regions are preserved.";
paint();
}
}
const api = {
open(points, opts) {
enabled = false;
group.visible = false;
path.open(points, opts);
},
openRegions(definition, doorId, viewer) {
path.close();
scene = definition;
door = scene.objects.find((o) => o.id === doorId);
if (!door) throw Error("Select an object first.");
const normal = [Math.sin(door.rotation), 0, Math.cos(door.rotation)];
side = viewer.reduce((s, n, i) => s + (n - door.position[i]) * normal[i], 0) >= 0 ? 1 : -1;
regions = structuredClone((scene.regions || []).filter((r) => regionObjectId(r) === doorId));
stroke = null;
owner = null;
enabled = true;
group.visible = true;
forceFloor = false;
message = "Draw sources on the selected object and a floor dwell region. Close each loop before releasing.";
paint();
},
active: () => enabled || path.active(),
close() {
enabled = false;
group.visible = false;
stroke = null;
owner = null;
regions = [];
dispose();
path.close();
},
begin(ray, input) {
if (!enabled) return path.begin(ray, input);
if (owner) return false;
if (regions.length >= REGION_LIMITS.perDoor) {
message = "Up to 8 regions per object. Undo a region to draw another.";
return false;
}
const h = hit(ray);
if (!h) {
message = "Start on the selected object or on the floor.";
return false;
}
stroke = { ...h, points: [h.point] };
owner = input;
message = h.surface === "floor" ? "Drawing floor trigger…" : "Drawing object source…";
paint();
return true;
},
update(ray, input) {
if (!enabled) return path.update(ray, input);
if (owner !== input || !stroke) return;
const h = hit(ray);
if (!h) {
interrupt("The stroke left its original surface and was cancelled");
return;
}
const last = stroke.points.at(-1), distance = Math.hypot(h.point[0] - last[0], h.point[1] - last[1]);
if (distance > REGION_LIMITS.maxGap) {
interrupt("Tracking jumped; the stroke was cancelled");
return;
}
if (distance < REGION_LIMITS.spacing) return;
if (stroke.points.length >= 1024) {
interrupt("The stroke is too long. Draw a smaller region.");
return;
}
stroke.points.push(h.point);
paint();
},
release(input) {
if (!enabled) return path.release(input);
if (owner !== input || !stroke) return false;
const raw = stroke;
stroke = null;
owner = null;
try {
const region = { schema: "vrbuild-region/1", id: "region-" + crypto.randomUUID(), objectId: door.id, ...raw.surface === "door-frame" ? { doorId: door.id } : {}, name: (raw.surface === "floor" ? "Floor trigger " : "Object source ") + (regions.length + 1), surface: raw.surface, points: closeRegionStroke(raw.points, raw.surface), ...raw.surface === "floor" ? { floorY: raw.floorY } : raw.surface === "object-surface" ? { frame: raw.frameData } : { side: raw.side } };
validateRegions([...regions, region], scene);
regions.push(region);
message = `${regions.length} regions ready. Draw another loop or finish and describe the effect.`;
paint();
return true;
} catch (error) {
message = error.message;
paint();
return false;
}
},
suspend(reason) {
if (enabled) interrupt(reason);
else path.suspend(reason);
},
undo() {
if (!enabled) return path.undo();
if (stroke) interrupt();
else {
regions.pop();
message = "Last region undone";
paint();
}
},
clear() {
if (!enabled) return path.clear();
regions = [];
stroke = null;
owner = null;
message = "Regions cleared. Draw new regions.";
paint();
},
toggleSurface() {
if (!enabled || stroke) return;
forceFloor = !forceFloor;
message = forceFloor ? "Next stroke: floor trigger." : "Next stroke: object source, or a separate floor region.";
paint();
},
depth(delta) {
if (!enabled) path.depth(delta);
},
cycleSmoothing() {
if (!enabled) path.cycleSmoothing();
},
summary: () => enabled ? { kind: "regions", mode: "regions", forceFloor, pointCount: regions.reduce((n, r) => n + r.points.length, 0), regionCount: regions.length, drawing: !!stroke, canUndo: !!stroke || regions.length > 0, length: 0, message, version } : path.summary(),
snapshot: () => enabled ? { kind: "regions", mode: "regions", regions: structuredClone(regions), objectId: door.id, doorId: isDoor(door) ? door.id : void 0, stroke: stroke ? structuredClone({ ...stroke, frame: void 0 }) : null, active: enabled, owner: owner === "mouse" ? "mouse" : owner ? "controller" : null } : path.snapshot()
};
return api;
}
export {
createInteractionDraftTool
};
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