Source: https://github.com/ardalis/kata-catalog
This is a fun kata that has the programmer building simple combat rules, as for a role-playing game (RPG). It is implemented as a sequence of iterations. The domain doesn't include a map or any other character skills apart from their ability to damage and heal one another.
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Complete each iteration before reading the next one.
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It's recommended you perform this kata with a pairing partner and while writing tests.
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All Characters, when created, have:
- Health, starting at 1000
- Level, starting at 1
- May be Alive or Dead, starting Alive (Alive may be a true/false)
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Characters can Deal Damage to Characters.
- Damage is subtracted from Health
- When damage received exceeds current Health, Health becomes 0 and the character dies
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A Character can Heal a Character.
- Dead characters cannot be healed
- Healing cannot raise health above 1000
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A Character cannot Deal Damage to itself.
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A Character can only Heal itself.
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When dealing damage:
- If the target is 5 or more Levels above the attacker, Damage is reduced by 50%
- If the target is 5 or more Levels below the attacker, Damage is increased by 50%
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Characters have an attack Max Range.
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Melee fighters have a range of 2 meters.
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Ranged fighters have a range of 20 meters.
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Characters must be in range to deal damage to a target.
- Are you keeping up with the requirements? Has any iteration been a big challenge?
- Do you feel good about your design? Is it scalable and easily adapted to new requirements?
- Is everything tested? Are you confident in your code?
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Characters may belong to one or more Factions.
- Newly created Characters belong to no Faction.
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A Character may Join or Leave one or more Factions.
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Players belonging to the same Faction are considered Allies.
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Allies cannot Deal Damage to one another.
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Allies can Heal one another.
- Characters can damage non-character things (props).
- Anything that has Health may be a target
- These things cannot be Healed and they do not Deal Damage
- These things do not belong to Factions; they are neutral
- When reduced to 0 Health, things are Destroyed
- As an example, you may create a Tree with 2000 Health
- What problems did you encounter?
- What have you learned? Any new technique or pattern?
- Share your design with others, and get feedback on different approaches.
- Original Source: http://www.slideshare.net/DanielOjedaLoisel/rpg-combat-kata