8️⃣Weather Switcher

Alter ambience by controlling light intensity, colour, the moon, stars and sun.

  • Changes the ambience of the environment for ALL players:

    • colour of environmental light

    • position of the sun and moon

    • density of clouds

    • brightness of stars

PERFORMANCE TIP In multiplayer Experiences, there are two layers of logic that will not communicate with each other: singleplayer [SP] and multiplayer [MP]. For best performance, only apply [MP] behaviours and components to objects that MUST be synchronised to all players (or communicate on that layer), and maximise use of the [SP] (Client Only) layer.

USAGE TIP This behaviour will not communicate with Quests or [SP] behaviours or components. It can be used in singleplayer Experiences.

Common Uses

  • Instant change of weather/time settings using any Message

  • Gradual change of weather/time settings over a specified time period by sending a special Message, WeatherFade, to this object

  • Cycles of change from day/night when combined with other logic such as Timed Events






Wait For Message - Determines whether the weather settings should be active at the start of your game or upon receiving a message. Message to switch - Defines which message(s) will activate the Weather Switcher.

Preset Name - Allows you to choose preset weather settings from a drop down menu. To create your own unique weather preset, choose "Custom".

Sky Top/Middle/Bottom - Allows you to choose the colours of the sky to create your own unique look.

Light Colour - Allows you to choose the colour of the light in your experience. Changing this to a different colour can drastically change the look of your game. Light Intensity - Determines the intensity of the lighting. Higher values makes the experience brighter.

Fog Density - Determines the intensity of fog in the horizon. Fog Power - Determines the strength of the fog in the horizon.

Sun Colour - Allows you to change the colour of the sun. Sun Size - Determine the size of the sun in the sky.

Moon Colour - Allows you to change the colour of the moon. Moon Size - Determine the size of the moon in the sky.

Stars Intensity - Determines the intensity of the stars. Higher values will result in more and brighter stars.

Shadow Colour - Changes the colour of shadows. Shadow Intensity - Determines how light or dark the shadows are. Higher values result in darker shadows.

Time - Set the time of the day. Changing this setting will determine whether there will be a moon or a sun in the sky, and also determine the position of them. Value 0.50 is equal to noon. Values 0 and 1 are equal to midnight.

Sky Influence - Determines how much the colours of the sky affect the hue of the overall landscape.

Cloud Density - Determines how many clouds are in the sky. Cloud Shadow/Light/Sky Colour - Determines the colours of the clouds. You can try different settings for different effects.

Preview - Allows you to preview the settings you have chosen. Restore - Restores the preview weather to default weather. Your settings remain.

If the Weather Switcher has triggers influenced by player interaction, then the actions of ALL players can trigger the Behaviour.


Because this Behaviour is Multiplayer, make sure to select β€˜Synchronized’ in the Behaviour Panel when adding it to an actor.

It’s recommended to apply this Behaviour to a Logic Asset. This makes them easier to identify and reduces the face count in an experience, which improves performance.

This Behaviour doesn’t work with the Toggle component.



If Wait for Message is set to FALSE, then the Behaviour will be active as soon as the experience loads.

If Wait for Message is set to TRUE, then the Behaviour will be inactive until triggered, and Message to Switch will become available as a field.

Message to Switch

To set an activation message, either create a new one by clicking the field, typing the desired message and clicking enter, or selecting an existing message from the drop-down list.


The Weather Switcher Behaviour will open set to a Preset by default and can be changed to a range of themes from Desert, Neutral, Night, Noon, Sunrise, to Overcast.

There is also the option to create a Custom Weather Switcher. When this is selected, a range of options to customise the colour, light, sun position, moon position, and star intensity will become available.


Presets must be set to CUSTOM for these variables to appear in the Properties Panel.


The Sky Parameter has variables that affect the colour of different areas in the Sky Box.

The Skybox is a cube-shaped object that surrounds a Land in Game Maker and is used to simulate an outdoor environment.

Sky Top

This parameter sets the colour for the uppermost section of the skybox, starting at the horizon line and moving up to cover the whole area directly above the experience.

Sky Middle

The Sky Middle colour settings affect the horizon line of the skybox and blend between Sky Top and Sky Bottom.

Sun and Moon colour settings will also influence the look of this region of the skybox.

Sky Bottom

This parameter sets the colour for the lowermost section of the skybox, starting at the horizon line and moving down to cover the whole area directly below the Experience.


Shadow Colour

This variable defines the colour of shadows cast by objects in an experience when light is blocked by the object.

Clicking on the colour bar in the properties panel will open a pop-up where the values can be set to match the desired look of the game.

The shadow colour can be set using the available sliders, or if a colour pallet has already been defined for an experience, a Hex code can be pasted into the available field.

Setting Shadow Colour to white will result in no shadows being cast.

The chosen colour will also affect the colour of objects. The impact of the colour will change depending on how dark or light the surface is.

Shadows can be used to create a sense of realism, depth and atmosphere, for example, darker shadows could be used to accentuate a horror experience.

Shadow Intensity

Shadow intensity refers to the darkness or strength of the shadows generated by Blocks and Objects in the experience.

The value of Shadow Intensity can be set between 0.00 to 1.00, with 0 representing no shadows and 1 representing deep shadows.

For a standard shadow setting, try using Dark Grey (HEX Code #A9A9A9) as a Shadow Colour with a Shadow Intensity of 0.6.

SSS Colour

This parameter sets the colour of Sub Surface Scattering light in clouds.

This appears as a halo effect but will only be visible when Sub Surface Scattering Intensity has been set to a value higher than 0.00.


Clicking PREVIEW will generate a live view of the current Weather Switcher in the Edit Mode of the Game Maker.

Each time an adjustment is made to the Weather Switcher, the PREVIEW button will need to be clicked to update the scene.


Click RESTORE will toggle the scene to the Default Ambience setting of the scene.

The Restore button doesn’t erase custom settings on a Weather Switcher. Clicking Preview again will update the scene with the selected Weather Switchers parameters.

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