engine.scope(({ start, cls, spr, btn, btnp, text, rectfill, rect, mset, map, camera, creset, rnd, base, caption }) => { const { Constants, Sprites, Sounds, FacingSprite, buildWorld, isSolid, isEncounterZone, calcDamage, drawHpBar, drawMiniHpBar } = base(); const sprites = { grass: Sprites.Grass, path: Sprites.Path, tree: Sprites.Tree, wall: Sprites.Wall, healer: Sprites.Healer, playerDown: Sprites.PlayerDown, playerUp: Sprites.PlayerUp, playerLeft: Sprites.PlayerLeft, playerRight: Sprites.PlayerRight, flamepup: Sprites.Flamepup, shellbit: Sprites.Shellbit, zapfin: Sprites.Zapfin, mossgrowl: Sprites.Mossgrowl, shadowclaw: Sprites.Shadowclaw, }; let tileX = Constants.SpawnX, tileY = Constants.SpawnY; let px, py; let camX = 0, camY = 0; let moving = false; let facing = 'down'; let lastAxis = 'h'; let party = [ { name: 'Flamepup', sprite: 'flamepup', hp: 25, maxHp: 25, attack: 8, defense: 4 }, ]; let potions = 3; let mode = 'overworld'; let battleState = 'menu'; let wildMonster = null; let menuCol = 0, menuRow = 0; let partyCursor = 0; let messageText = ''; let messageTimer = 0; let nextBattleState = ''; let transitionTimer = 0; let flashTarget = ''; let flashTimer = 0; const northPool = [ { name: 'Zapfin', sprite: 'zapfin', maxHp: 22, attack: 7, defense: 5 }, { name: 'Mossgrowl', sprite: 'mossgrowl', maxHp: 30, attack: 5, defense: 4 }, ]; const southPool = [ { name: 'Shellbit', sprite: 'shellbit', maxHp: 25, attack: 5, defense: 7 }, { name: 'Shadowclaw', sprite: 'shadowclaw', maxHp: 16, attack: 10, defense: 3 }, ]; const menuGrid = [['FIGHT', 'CATCH'], ['HEAL', 'RUN']]; function lead() { return party[0]; } function getEncounterPool() { if (tileY < 8) return northPool; if (tileY > 15) return southPool; return rnd(1) < 0.5 ? northPool : southPool; } function startEncounter() { const pool = getEncounterPool(); const template = pool[Math.floor(rnd(pool.length))]; wildMonster = { ...template, hp: template.maxHp }; mode = 'transition'; transitionTimer = 12; } function endBattle() { mode = 'overworld'; wildMonster = null; } function showMessage(msg, frames) { messageText = msg; messageTimer = frames; battleState = 'message'; } function startFlash(target) { flashTarget = target; flashTimer = 12; } function isAdjacentToHealer() { const dx = Math.abs(tileX - Constants.HealerX); const dy = Math.abs(tileY - Constants.HealerY); return (dx + dy) === 1; } function selectedMenuOption() { return menuGrid[menuRow][menuCol]; } function init() { buildWorld(); mset(Constants.HealerX, Constants.HealerY, 'healer'); px = tileX * 8; py = tileY * 8; } function updateOverworld() { if (btnp('z') || btnp(' ')) { if (isAdjacentToHealer()) { for (const m of party) m.hp = m.maxHp; potions = 3; mode = 'healMessage'; messageText = 'Monsters healed!'; messageTimer = 60; return; } } if (btnp('x') || btnp('Escape')) { mode = 'partyMenu'; partyCursor = 0; return; } let dx = 0, dy = 0; if (btn('ArrowLeft') || btn('a')) dx = -1; else if (btn('ArrowRight') || btn('d')) dx = 1; if (btn('ArrowUp') || btn('w')) dy = -1; else if (btn('ArrowDown') || btn('s')) dy = 1; if (dx !== 0 && dy === 0) lastAxis = 'h'; if (dy !== 0 && dx === 0) lastAxis = 'v'; if (dx !== 0 && dy !== 0) { if (lastAxis === 'h') dx = 0; else dy = 0; } if (dx === -1) facing = 'left'; else if (dx === 1) facing = 'right'; else if (dy === -1) facing = 'up'; else if (dy === 1) facing = 'down'; if (!moving && (dx !== 0 || dy !== 0)) { const nx = tileX + dx; const ny = tileY + dy; if (!isSolid(nx, ny)) { tileX = nx; tileY = ny; moving = true; } } if (moving) { const tx = tileX * 8; const ty = tileY * 8; if (px < tx) px = Math.min(px + Constants.Speed, tx); else if (px > tx) px = Math.max(px - Constants.Speed, tx); if (py < ty) py = Math.min(py + Constants.Speed, ty); else if (py > ty) py = Math.max(py - Constants.Speed, ty); if (px === tx && py === ty) { moving = false; if (isEncounterZone(tileX, tileY) && rnd(1) < 0.15) { startEncounter(); return; } } } camX = Math.max(0, Math.min(Constants.MapW * 8 - Constants.Canvas, px - 60)); camY = Math.max(0, Math.min(Constants.MapH * 8 - Constants.Canvas, py - 60)); } function updatePartyMenu() { if (btnp('x') || btnp('Escape')) { mode = 'overworld'; return; } if (btnp('ArrowUp') || btnp('w')) partyCursor = (partyCursor + party.length - 1) % party.length; if (btnp('ArrowDown') || btnp('s')) partyCursor = (partyCursor + 1) % party.length; if ((btnp('z') || btnp(' ')) && partyCursor !== 0) { const temp = party[0]; party[0] = party[partyCursor]; party[partyCursor] = temp; partyCursor = 0; } } function updateBattle() { if (flashTimer > 0) flashTimer--; if (battleState === 'message') { messageTimer--; if (messageTimer <= 0) { if (nextBattleState === 'endWin') { showMessage(wildMonster.name + ' defeated!', 60); nextBattleState = 'endReturn'; } else if (nextBattleState === 'endReturn') { endBattle(); } else if (nextBattleState === 'endLose') { showMessage('You blacked out!', 60); nextBattleState = 'endReset'; } else if (nextBattleState === 'endReset') { for (const m of party) m.hp = m.maxHp; potions = 3; tileX = Constants.SpawnX; tileY = Constants.SpawnY; px = tileX * 8; py = tileY * 8; endBattle(); } else if (nextBattleState === 'enemyTurn') { const dmg = calcDamage(wildMonster.attack, lead().defense); lead().hp = Math.max(0, lead().hp - dmg); startFlash('player'); showMessage(wildMonster.name + ' deals ' + dmg + '!', 40); nextBattleState = lead().hp <= 0 ? 'endLose' : 'backToMenu'; } else if (nextBattleState === 'backToMenu') { battleState = 'menu'; } else if (nextBattleState === 'runFail') { const dmg = calcDamage(wildMonster.attack, lead().defense); lead().hp = Math.max(0, lead().hp - dmg); startFlash('player'); showMessage(wildMonster.name + ' deals ' + dmg + '!', 40); nextBattleState = lead().hp <= 0 ? 'endLose' : 'backToMenu'; } else if (nextBattleState === 'catchSuccess') { if (party.length < Constants.PartyMax) { party.push({ ...wildMonster, hp: wildMonster.maxHp }); } endBattle(); } else if (nextBattleState === 'catchFail') { const dmg = calcDamage(wildMonster.attack, lead().defense); lead().hp = Math.max(0, lead().hp - dmg); startFlash('player'); showMessage(wildMonster.name + ' deals ' + dmg + '!', 40); nextBattleState = lead().hp <= 0 ? 'endLose' : 'backToMenu'; } } return; } if (battleState === 'menu') { if (btnp('ArrowUp') || btnp('w')) menuRow = (menuRow + 1) % 2; if (btnp('ArrowDown') || btnp('s')) menuRow = (menuRow + 1) % 2; if (btnp('ArrowLeft') || btnp('a')) menuCol = (menuCol + 1) % 2; if (btnp('ArrowRight') || btnp('d')) menuCol = (menuCol + 1) % 2; if (btnp('z') || btnp(' ')) { const choice = selectedMenuOption(); if (choice === 'FIGHT') { const dmg = calcDamage(lead().attack, wildMonster.defense); wildMonster.hp = Math.max(0, wildMonster.hp - dmg); startFlash('enemy'); showMessage('You deal ' + dmg + ' damage!', 40); nextBattleState = wildMonster.hp <= 0 ? 'endWin' : 'enemyTurn'; } else if (choice === 'CATCH') { if (party.length >= Constants.PartyMax) { showMessage('Party is full!', 40); nextBattleState = 'backToMenu'; } else { const chance = 0.3 + 0.5 * (1 - wildMonster.hp / wildMonster.maxHp); if (rnd(1) < chance) { showMessage('Got ' + wildMonster.name + '!', 60); nextBattleState = 'catchSuccess'; } else { showMessage('It broke free!', 40); nextBattleState = 'catchFail'; } } } else if (choice === 'HEAL') { if (potions <= 0) { showMessage('No potions left!', 40); nextBattleState = 'backToMenu'; } else { potions--; const healed = Math.min(10, lead().maxHp - lead().hp); lead().hp += healed; showMessage('Healed ' + healed + ' HP!', 40); nextBattleState = 'enemyTurn'; } } else if (choice === 'RUN') { if (rnd(1) < 0.6) { showMessage('Got away safely!', 40); nextBattleState = 'endReturn'; } else { showMessage("Can't escape!", 40); nextBattleState = 'runFail'; } } } } } function update() { if (mode === 'transition') { transitionTimer--; if (transitionTimer <= 0) { mode = 'battle'; battleState = 'menu'; menuRow = 0; menuCol = 0; messageText = ''; messageTimer = 0; flashTimer = 0; } return; } if (mode === 'healMessage') { messageTimer--; if (messageTimer <= 0) mode = 'overworld'; return; } if (mode === 'overworld') updateOverworld(); else if (mode === 'battle') updateBattle(); else if (mode === 'partyMenu') updatePartyMenu(); } function drawBattle() { creset(); cls(0); if (!wildMonster) return; const enemyVisible = !(flashTarget === 'enemy' && flashTimer > 0 && Math.floor(flashTimer / 2) % 2 === 0); if (enemyVisible) spr(wildMonster.sprite, 92, 8); text(wildMonster.name, 4, 4, 7); drawHpBar(4, 14, wildMonster.hp, wildMonster.maxHp); const playerVisible = !(flashTarget === 'player' && flashTimer > 0 && Math.floor(flashTimer / 2) % 2 === 0); if (playerVisible) spr(lead().sprite, 28, 44); text(lead().name, 72, 40, 7); drawHpBar(72, 50, lead().hp, lead().maxHp); if (battleState === 'message') { text(messageText, 4, 90, 10); } else if (battleState === 'menu') { for (let r = 0; r < 2; r++) { for (let c = 0; c < 2; c++) { const x = c === 0 ? 20 : 84; const y = 90 + r * 12; text(menuGrid[r][c], x, y, 7); if (r === menuRow && c === menuCol) text('>', x - 10, y, 10); } } } } function drawOverworld() { cls(0); camera(camX, camY); const cx = Math.floor(camX / 8); const cy = Math.floor(camY / 8); map(0, cx, cy, 17, 17, cx * 8, cy * 8); spr(FacingSprite[facing], px, py); creset(); caption('Party:' + party.length + '/' + Constants.PartyMax, 2, 2, 7); caption('Potions:' + potions, 2, 12, 7); if (mode === 'healMessage') { rectfill(14, 50, 114, 70, 0); rect(14, 50, 114, 70, 7); caption(messageText, 20, 56, 11); } } function drawPartyMenu() { cls(0); text('PARTY', 48, 4, 7); for (let i = 0; i < party.length; i++) { const y = 20 + i * 30; const m = party[i]; if (i === partyCursor) text('>', 4, y + 4, 10); spr(m.sprite, 14, y); text(m.name, 28, y, 7); drawMiniHpBar(28, y + 10, m.hp, m.maxHp); text(m.hp + '/' + m.maxHp, 28, y + 16, 6); if (i === 0) text('[LEAD]', 80, y, 10); } text('Z=swap X=close', 12, 118, 6); } function draw() { if (mode === 'transition') { cls(transitionTimer % 2 === 0 ? 0 : 7); return; } if (mode === 'battle') drawBattle(); else if (mode === 'partyMenu') drawPartyMenu(); else drawOverworld(); } start({ sprites, sounds: Sounds, init, update, draw, target }); });

Editando: JRPG: Complete Example

Ediciones recientes

Plugins