@woosh/meep-engine/src/engine/graphics/ecs/camera/topdown/TopDownCameraControllerSerializationUpgrader_0_1.js

Pure JavaScript game engine. Fully featured and production ready.

import { BinaryClassUpgrader } from "../../../../ecs/storage/binary/BinaryClassUpgrader.js";
import { BinaryBuffer } from "../../../../../core/binary/BinaryBuffer.js";

export class TopDownCameraControllerSerializationUpgrader_0_1 extends BinaryClassUpgrader {
    constructor() {
        super();

        this.__startVersion = 0;
        this.__targetVersion = 1;
    }

    upgrade(source, target) {
        // read out target
        BinaryBuffer.copyFloat64(source, target); // x
        BinaryBuffer.copyFloat64(source, target); // y
        BinaryBuffer.copyFloat64(source, target); // z

        const pitch = source.readFloat64();
        const yaw = source.readFloat64();
        const roll = 0;

        target.writeFloat64(-pitch);
        target.writeFloat64(yaw - Math.PI);
        target.writeFloat64(roll);

        BinaryBuffer.copyFloat64(source, target); // distance
        BinaryBuffer.copyFloat64(source, target); // distanceMin
        BinaryBuffer.copyFloat64(source, target); // distanceMax
    }
}