Middle-Earth Battle

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Java project that simulates battles between the forces of good and evil in Middle-Earth. Each race has a strength value between 1 and 5. The total strength is calculated by multiplying that value by the number of members, and the program determines whether kind wins, evil wins, or there is a draw.

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Class

The class MiddleEarthBattle was created defining the members of the good and evil armies and their strength values using two HashMap instances declared as Map to follow the good practice of programming to interfaces.

Races & Strength Values

Kind Races	Value	Evil Races	Value
Pelosos	1	Sureños malos	2
Sureños buenos	2	Orcos	2
Enanos	3	Goblins	2
Númenóreanos	4	Huargos	3
Elfos	5	Trolls	5

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Core Methods

Method	Description
calculateStrength(Map battle, Map army)	Calculates total strength by multiplying members by race value. Throws IllegalArgumentException for invalid races.
calculateResult(int kindPoints, int evilPoints)	Compares both scores and returns "kind wins to", "evil wins to", or "draw".
battleForTheMiddleEarth(Map kindBattle, Map evilBattle)	Orchestrates the full battle, prints and returns the formatted result.

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Tests

6 JUnit 5 tests covering the main scenarios:

Assertion	Scenario
assertEquals	4 Númenóreanos have a strength of 16
assertEquals	Evil army with more points wins
assertEquals	5 Elfos have a strength of 25
assertTrue	3 Enanos draw against 3 Huargos
assertFalse	1 Peloso does not beat 2 Sureños malos
assertThrows	Exception thrown for an invalid race ("Invalid race")

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Example Battles

Battle 1: 4 Númenóreanos (16) vs 2 Orcos (4)      → Kind wins
Battle 2: 2 Sureños buenos (4) vs 5 Trolls (25)    → Evil wins
Battle 3: 5 Elfos (25) vs 5 Goblins (10)           → Kind wins
Battle 4: 1 Peloso (1) vs 2 Sureños malos (4)      → Evil wins
Battle 5: 3 Enanos (9) vs 3 Huargos (9)            → Draw

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How to Run

git clone https://github.com/Melycode/middle-earth-battle.git
cd middle-earth-battle

mvn compile
mvn exec:java -Dexec.mainClass="testinglab.MiddleEarthBattle"

mvn test

Requires Java 17+ and Maven 3.6+