# Technology Tree Configuration
# All gameplay values, science costs, layout coordinates, and prerequisite chains are configurable via YAML.

technologies:
  pottery:
    id: "pottery"
    name: "Pottery"
    science_cost: 1000
    column: 0
    row: 0
    icon: "images/improvements/granary.png"
    description: "Ceramic vessels for storing grain and preserving food supplies."

  animal_husbandry:
    id: "animal_husbandry"
    name: "Animal Husbandry"
    science_cost: 1000
    column: 0
    row: 1
    icon: "images/resources/voedsel.png"
    description: "Domestication and breeding of livestock for food and labor."

  mining:
    id: "mining"
    name: "Mining"
    science_cost: 1200
    column: 0
    row: 2
    icon: "images/resources/arbeid.png"
    description: "Extraction of stone and metal ores from the earth."

  sailing:
    id: "sailing"
    name: "Sailing"
    science_cost: 1500
    column: 1
    row: 0
    icon: "images/units/galley.png"
    description: "Harnessing the wind to navigate coastal waters."
    prerequisites:
      - "pottery"

  writing:
    id: "writing"
    name: "Writing"
    science_cost: 1800
    column: 1
    row: 1
    icon: "images/resources/kennis.png"
    description: "Recording laws, history, and scientific knowledge in script."
    prerequisites:
      - "pottery"

  archery:
    id: "archery"
    name: "Archery"
    science_cost: 1500
    column: 1
    row: 2
    icon: "images/units/slinger.png"
    description: "Use of bows and arrows for superior ranged warfare."
    prerequisites:
      - "animal_husbandry"

  bronze_working:
    id: "bronze_working"
    name: "Bronze Working"
    science_cost: 1800
    column: 1
    row: 3
    icon: "images/units/warrior.png"
    description: "Smelting copper and tin into durable bronze weapons and armor."
    prerequisites:
      - "mining"

  masonry:
    id: "masonry"
    name: "Masonry"
    science_cost: 1600
    column: 1
    row: 4
    icon: "images/improvements/monument.png"
    description: "Cutting and laying stone for permanent fortifications and monuments."
    prerequisites:
      - "mining"

  celestial_navigation:
    id: "celestial_navigation"
    name: "Celestial Navigation"
    science_cost: 2500
    column: 2
    row: 0
    icon: "images/units/galley.png"
    description: "Using the stars to guide maritime trade and exploration."
    prerequisites:
      - "sailing"
      - "writing"

  currency:
    id: "currency"
    name: "Currency"
    science_cost: 2400
    column: 2
    row: 1
    icon: "images/resources/goud.png"
    description: "Standardized coinage enabling thriving markets and trade."
    prerequisites:
      - "writing"

  wheel:
    id: "wheel"
    name: "The Wheel"
    science_cost: 2200
    column: 2
    row: 2
    icon: "images/actions/road.png"
    description: "Rotational mechanics for transport and water-powered mills."
    prerequisites:
      - "archery"
      - "mining"

  horseback_riding:
    id: "horseback_riding"
    name: "Horseback Riding"
    science_cost: 2500
    column: 2
    row: 3
    icon: "images/actions/move.png"
    description: "Mounted cavalry tactics for rapid battlefield maneuvers."
    prerequisites:
      - "archery"

  iron_working:
    id: "iron_working"
    name: "Iron Working"
    science_cost: 2800
    column: 2
    row: 4
    icon: "images/actions/attack.png"
    description: "Forging strong iron blades and heavy infantry armor."
    prerequisites:
      - "bronze_working"

  education:
    id: "education"
    name: "Education"
    science_cost: 3600
    column: 3
    row: 0
    icon: "images/resources/kennis.png"
    description: "Higher learning institutions and systematic scientific inquiry."
    prerequisites:
      - "currency"
      - "celestial_navigation"

  engineering:
    id: "engineering"
    name: "Engineering"
    science_cost: 3400
    column: 3
    row: 2
    icon: "images/resources/arbeid.png"
    description: "Advanced structural design, aqueducts, and mechanical contraptions."
    prerequisites:
      - "wheel"
      - "masonry"

  stirrups:
    id: "stirrups"
    name: "Stirrups"
    science_cost: 4000
    column: 3
    row: 3
    icon: "images/actions/move.png"
    description: "Saddle stirrups enabling heavily armored shock cavalry."
    prerequisites:
      - "horseback_riding"
      - "iron_working"

  machinery:
    id: "machinery"
    name: "Machinery"
    science_cost: 4200
    column: 4
    row: 1
    icon: "images/resources/arbeid.png"
    description: "Mechanical gears, crossbows, and specialized workshops."
    prerequisites:
      - "engineering"
      - "iron_working"

  gunpowder:
    id: "gunpowder"
    name: "Gunpowder"
    science_cost: 5200
    column: 4
    row: 3
    icon: "images/actions/attack.png"
    description: "Explosive black powder revolutionizing firearms and siege warfare."
    prerequisites:
      - "machinery"
      - "stirrups"