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Add levelling up mechanics through experience gained via killing enemies

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Peter Stockings
2026-01-04 18:36:31 +11:00
parent 42cd77998d
commit 29e46093f5
11 changed files with 373 additions and 84 deletions
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52
src/engine/world/generator.ts
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@@ -12,33 +12,27 @@ interface Room {
/**
* Generates a procedural dungeon world with rooms and corridors
* @param level The level number (affects difficulty and randomness seed)
* @param runState Player's persistent state across levels
* @param floor The floor number (affects difficulty)
* @param runState Player's persistent state across floors
* @returns Generated world and player ID
*/
export function generateWorld(level: number, runState: RunState): { world: World; playerId: EntityId } {
export function generateWorld(floor: number, runState: RunState): { world: World; playerId: EntityId } {
const width = GAME_CONFIG.map.width;
const height = GAME_CONFIG.map.height;
const tiles: Tile[] = new Array(width * height).fill(GAME_CONFIG.terrain.wall); // Start with all walls
const tiles: Tile[] = new Array(width * height).fill(GAME_CONFIG.terrain.wall);
const random = seededRandom(floor * 12345);
const random = seededRandom(level * 12345);
const rooms = generateRooms(width, height, tiles, random);
// Place player in first room
const firstRoom = rooms[0];
const playerX = firstRoom.x + Math.floor(firstRoom.width / 2);
const playerY = firstRoom.y + Math.floor(firstRoom.height / 2);
// Place exit in last room
const lastRoom = rooms[rooms.length - 1];
const exitX = lastRoom.x + Math.floor(lastRoom.width / 2);
const exitY = lastRoom.y + Math.floor(lastRoom.height / 2);
const exit: Vec2 = { x: exitX, y: exitY };
const actors = new Map<EntityId, Actor>();
const playerId = 1;
actors.set(playerId, {
id: playerId,
isPlayer: true,
@@ -50,13 +44,23 @@ export function generateWorld(level: number, runState: RunState): { world: World
inventory: { gold: runState.inventory.gold, items: [...runState.inventory.items] }
});
placeEnemies(level, rooms, actors, random);
// Place exit in last room
const lastRoom = rooms[rooms.length - 1];
const exit: Vec2 = {
x: lastRoom.x + Math.floor(lastRoom.width / 2),
y: lastRoom.y + Math.floor(lastRoom.height / 2)
};
placeEnemies(floor, rooms, actors, random);
decorate(width, height, tiles, random, exit);
return { world: { width, height, tiles, actors, exit }, playerId };
return {
world: { width, height, tiles, actors, exit },
playerId
};
}
function generateRooms(width: number, height: number, tiles: Tile[], random: () => number): Room[] {
const rooms: Room[] = [];
const numRooms = GAME_CONFIG.map.minRooms + Math.floor(random() * (GAME_CONFIG.map.maxRooms - GAME_CONFIG.map.minRooms + 1));
@@ -204,9 +208,9 @@ function generatePatch(width: number, height: number, fillChance: number, iterat
return map;
}
function placeEnemies(level: number, rooms: Room[], actors: Map<EntityId, Actor>, random: () => number): void {
function placeEnemies(floor: number, rooms: Room[], actors: Map<EntityId, Actor>, random: () => number): void {
let enemyId = 2;
const numEnemies = GAME_CONFIG.enemy.baseCount + level * GAME_CONFIG.enemy.baseCountPerLevel + Math.floor(random() * GAME_CONFIG.enemy.randomBonus);
const numEnemies = GAME_CONFIG.enemy.baseCount + floor * GAME_CONFIG.enemy.baseCountPerFloor; // Simplified for now
for (let i = 0; i < numEnemies && i < rooms.length - 1; i++) {
const roomIdx = 1 + Math.floor(random() * (rooms.length - 1));
@@ -215,8 +219,8 @@ function placeEnemies(level: number, rooms: Room[], actors: Map<EntityId, Actor>
const enemyX = room.x + 1 + Math.floor(random() * (room.width - 2));
const enemyY = room.y + 1 + Math.floor(random() * (room.height - 2));
const baseHp = GAME_CONFIG.enemy.baseHp + level * GAME_CONFIG.enemy.baseHpPerLevel;
const baseAttack = GAME_CONFIG.enemy.baseAttack + Math.floor(level / 2) * GAME_CONFIG.enemy.attackPerTwoLevels;
const baseHp = GAME_CONFIG.enemy.baseHp + floor * GAME_CONFIG.enemy.baseHpPerFloor;
const baseAttack = GAME_CONFIG.enemy.baseAttack + Math.floor(floor / 2) * GAME_CONFIG.enemy.attackPerTwoFloors;
actors.set(enemyId, {
id: enemyId,
@@ -229,11 +233,15 @@ function placeEnemies(level: number, rooms: Room[], actors: Map<EntityId, Actor>
maxHp: baseHp + Math.floor(random() * 4),
hp: baseHp + Math.floor(random() * 4),
attack: baseAttack + Math.floor(random() * 2),
defense: Math.floor(random() * (GAME_CONFIG.enemy.maxDefense + 1))
defense: 0,
level: 0,
exp: 0,
expToNextLevel: 0
}
});
enemyId++;
}
}
export const makeTestWorld = generateWorld;