01 Fragment

# Import the necessary modules
import { World } from "World"
import { Player } from "Player"
import { Input } from "Input"

# Define our two materials
# These are references to the Material Instances we created
var Cold_Material := "Material:MI_Cold_Concrete"
var Warm_Material := "Material:MI_Cozy_Wood"

# Function to change the material of all walls
Change_Room_Material := func(Material_to_Apply: Material): void {
    # Find all actors in the world
    For (actor := World::Get_Actors(); actor != null; actor = actor::Get_Next()) {
        # Check if the actor is a static mesh (walls, floors)
        If (actor::Is_A<Static_Mesh_Actor>() == true) {
            # Get the mesh component
            mesh := actor::Get_Component<Static_Mesh_Component>()
            # Set the material to our new one
            # Note: In a real scenario, you'd target specific actors, 
            # but for this demo, we'll change everything.
            mesh::Set_Material(0, Material_to_Apply)
        }
    }
}

# Main function that runs when the game starts
On_Start := func() -> void {
    # Initially set to cold
    Change_Room_Material(Cold_Material)