"""
Configuration settings for the Isometric Terrain Generator
"""

# Window settings
WINDOW_WIDTH = 1200
WINDOW_HEIGHT = 800
WINDOW_TITLE = "Isometric Terrain - RollerCoaster Tycoon Style"
FPS = 60

# Terrain generation settings
TERRAIN = {
    'grid_size': 20,  # 20x20 matrix
    'tile_size': 1,   # 1 tile per grid cell (so 20x20 tiles total)
    'tile_width': 30.0,  # 30px tile width
    'tile_depth': 30.0,  # 30px tile depth
    
    # Perlin noise parameters
    'noise_scale': 8.0,  # Smaller scale = more variation in small area
    'noise_octaves': 4,
    'noise_persistence': 0.6,  # Higher = more detail from higher octaves
    'noise_lacunarity': 2.5,  # Higher = more frequency increase per octave
    'noise_repeat_x': 1024,
    'noise_repeat_y': 1024,
    'noise_base': 42,
    
    # Height scaling
    'height_multiplier': 80.0,  # Multiplier for height variation
    'enable_smoothing': False,  # Set to True for gentler terrain
    'smoothing_kernel_size': 3,
}

# Camera settings
CAMERA = {
    'initial_distance': 800.0,
    'initial_height': 450.0,
    'initial_angle': 45.0,
    
    # Movement settings
    'zoom_speed': 10.0,
    'height_speed': 5.0,
    'min_distance': 200.0,
    'max_distance': 2000.0,
    
    # Perspective settings
    'fov': 45,  # Field of view
    'near_clip': 0.1,
    'far_clip': 5000.0,
}

# Rendering settings
RENDERING = {
    'background_color': (0.53, 0.81, 0.92, 1.0),  # Sky blue
    
    # Grid/wireframe settings
    'grid_line_width': 5.0,
    'grid_line_color': (0.0, 0.0, 0.0),
    
    # Lighting settings
    'light_position': [1.0, 1.0, 1.0, 0.0],
    'light_ambient': [0.4, 0.4, 0.4, 1.0],
    'light_diffuse': [0.8, 0.8, 0.8, 1.0],
    
    # Shading multipliers for side faces
    'side_face_shading': 0.7,
    'back_face_shading': 0.8,
}

# Biome colors (RCT style)
BIOME_COLORS = {
    'water': (0.2, 0.4, 0.8),
    'sand': (0.76, 0.7, 0.5),
    'grass_low': (0.2, 0.5, 0.2),
    'grass_mid': (0.25, 0.6, 0.25),
    'grass_high': (0.3, 0.65, 0.3),
    'rock': (0.5, 0.5, 0.5),
    'snow': (0.9, 0.9, 0.95)
}

# Height thresholds for biomes
BIOME_THRESHOLDS = {
    'water': 10.0,
    'sand': 20.0,
    'grass_low': 30.0,
    'grass_mid': 45.0,
    'grass_high': 60.0,
    'rock': 70.0,
    # snow is everything above rock
}