Package javax.vecmath

Examples of javax.vecmath.Vector3f.lengthSquared()

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    private boolean vectorsAreAboutEqual(Vector3f v1, Vector3f v2) {
        Vector3f delta = new Vector3f();
        delta.add(v1);
        delta.sub(v2);
        float epsilon = 0.0001f;
        float deltaSquared = delta.lengthSquared();
        return deltaSquared < epsilon;
    }

    private String getPlayerNameFromCharacter(EntityRef character) {
        CharacterComponent characterComponent = character.getComponent(CharacterComponent.class);
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    private boolean isDistanceToLarge(LocationComponent characterLocation, LocationComponent targetLocation, float maxInteractionRange) {
        float maxInteractionRangeSquared = maxInteractionRange*maxInteractionRange;
        Vector3f positionDelta = new Vector3f();
        positionDelta.add(characterLocation.getWorldPosition());
        positionDelta.sub(targetLocation.getWorldPosition());
        float interactionRangeSquared = positionDelta.lengthSquared();
        // add a small epsilon to have rounding mistakes be in favor of the player:
        float epsilon = 0.00001f;
        return interactionRangeSquared > maxInteractionRangeSquared + epsilon;
    }

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        Vector3f positionViewSpace = new Vector3f();
        positionViewSpace.sub(lightWorldPosition, activeCamera.getPosition());

        boolean doRenderLight = lightComponent.lightType == LightComponent.LightType.DIRECTIONAL
                || lightComponent.lightRenderingDistance == 0.0f
                || positionViewSpace.lengthSquared() < (lightComponent.lightRenderingDistance * lightComponent.lightRenderingDistance);

        doRenderLight &= isLightVisible(positionViewSpace, lightComponent);

        if (!doRenderLight) {
            return false;
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