r3-legacy/src/game-lib-component-raycast-vehicle-controls.js

GameLib.D3.ComponentRaycastVehicleControls = function(
    componentId,
    frontLWheelIndex,
    frontRWheelIndex,
    backLWheelIndex,
    backRWheelIndex,
    maxForce,
    steering
) {
    this.componentId = componentId || GameLib.D3.Tools.RandomId();
    this.parentEntity = null;

    // maybe we pass this in the constructor
    this.raycastVehicleComponent = null;
    this.frontLWheelIndex = frontLWheelIndex || 0;
    this.frontRWheelIndex = frontRWheelIndex || 1;
    this.backLWheelIndex = backLWheelIndex || 2;
    this.backRWheelIndex = backRWheelIndex || 3;

    this.maxForce = maxForce || 400;
    this.steering = steering || 0.5;

    // Todo: this should be executed somewhere in game-lib-z, so that we don't execute it on every construction of an object.
    GameLib.D3.Utils.Extend(GameLib.D3.ComponentRaycastVehicleControls, GameLib.D3.ComponentInterface);
};

///////////////////////// Methods to override //////////////////////////
GameLib.D3.ComponentRaycastVehicleControls.prototype.onSetParentEntity = function(
    parentScene,
    parentEntity
) {

    console.log("Set parent!");

    this.raycastVehicleComponent = parentEntity.getComponent(GameLib.D3.RaycastVehicle);
    if(!this.raycastVehicleComponent) {
        console.warn("NO RAYCAST VEHICLE FOUND!");
    } else {

        var component = this;
        document.addEventListener('keydown', function(event) {

            if (event.keyCode == 73) { // Forward [i]

                component.raycastVehicleComponent.instance.applyEngineForce(-component.maxForce, component.backLWheelIndex);
                component.raycastVehicleComponent.instance.applyEngineForce(-component.maxForce, component.backRWheelIndex);

            } else if (event.keyCode == 74) { // Left [j]

                component.raycastVehicleComponent.instance.setSteeringValue(component.steering, component.frontLWheelIndex);
                component.raycastVehicleComponent.instance.setSteeringValue(component.steering, component.frontRWheelIndex);

            } else if (event.keyCode == 75) { // Back [k]

                component.raycastVehicleComponent.instance.applyEngineForce(component.maxForce, component.backLWheelIndex);
                component.raycastVehicleComponent.instance.applyEngineForce(component.maxForce, component.backRWheelIndex);

            } else if (event.keyCode == 76) { // Right [l]
                component.raycastVehicleComponent.instance.setSteeringValue(-component.steering, component.frontLWheelIndex);
                component.raycastVehicleComponent.instance.setSteeringValue(-component.steering, component.frontRWheelIndex);
            }

        }, false);

        document.addEventListener('keyup', function(event) {

            if (event.keyCode == 73) { // Forward [i]

                component.raycastVehicleComponent.instance.applyEngineForce(0, component.backLWheelIndex);
                component.raycastVehicleComponent.instance.applyEngineForce(0, component.backRWheelIndex);

            } else if (event.keyCode == 74) { // Left [j]

                component.raycastVehicleComponent.instance.setSteeringValue(0, component.frontLWheelIndex);
                component.raycastVehicleComponent.instance.setSteeringValue(0, component.frontRWheelIndex);

            } else if (event.keyCode == 75) { // Back [k]

                component.raycastVehicleComponent.instance.applyEngineForce(0, component.backLWheelIndex);
                component.raycastVehicleComponent.instance.applyEngineForce(0, component.backRWheelIndex);

            } else if (event.keyCode == 76) { // Right [l]
                component.raycastVehicleComponent.instance.setSteeringValue(0, component.frontLWheelIndex);
                component.raycastVehicleComponent.instance.setSteeringValue(0, component.frontRWheelIndex);
            }

        }, false);

    }
};