map_blocked.ts

    [ScriptOpcode.MAP_BLOCKED]: (state) => {
        const coord = state.popInt();

        if (coord < 0 || coord > Position.max) {
            throw new Error(`MAP_BLOCKED attempted to use coord that was out of range: ${coord}. Range should be: 0 to ${Position.max}`);
        }

        const pos = Position.unpackCoord(coord);

        const zone = World.getZone(pos.x, pos.z, pos.level);
        const locs = zone.staticLocs.concat(zone.locs);

        for (let index = 0; index < locs.length; index++) {
            const loc = locs[index];
            const type = LocType.get(loc.type);

            if (type.active !== 1) {
                continue;
            }

            const layer = LocShapes.layer(loc.shape);

            if (loc.respawn !== -1 && layer === LocLayer.WALL) {
                continue;
            }

            if (layer === LocLayer.WALL) {
                if (loc.x === pos.x && loc.z === pos.z) {
                    state.pushInt(1);
                    return;
                }
            } else if (layer === LocLayer.GROUND) {
                const width = (loc.rotation === LocRotation.NORTH || loc.rotation === LocRotation.SOUTH) ? loc.length : loc.width;
                const length = (loc.rotation === LocRotation.NORTH || loc.rotation === LocRotation.SOUTH) ? loc.width : loc.length;
                for (let index = 0; index < width * length; index++) {
                    const deltaX = loc.x + (index % width);
                    const deltaZ = loc.z + (index / width);
                    if (deltaX === pos.x && deltaZ === pos.z) {
                        state.pushInt(1);
                        return;
                    }
                }
            } else if (layer === LocLayer.GROUND_DECOR) {
                if (loc.x === pos.x && loc.z === pos.z) {
                    state.pushInt(1);
                    return;
                }
            }
        }
        state.pushInt(0);
    },