From b328263aef7175df169b353928c8f10dde119db2 Mon Sep 17 00:00:00 2001
From: Sky Johnson <skylearj@gmail.com>
Date: Mon, 15 Jul 2024 14:24:13 -0500
Subject: [PATCH] Add starting stats, work on classes models

---
 server/app/app.php                            |  5 ++
 server/library.php                            | 56 +++++++++++--------
 server/models/Classes.php                     | 21 +++++++
 server/models/Player.php                      | 20 +++++++
 server/modules/InstallModule.php              | 14 +++--
 .../templates/install/partials/adminForm.php  |  5 ++
 6 files changed, 94 insertions(+), 27 deletions(-)

diff --git a/server/app/app.php b/server/app/app.php
index 1963222..9b1d8f0 100644
--- a/server/app/app.php
+++ b/server/app/app.php
@@ -9,12 +9,17 @@ class App
 	public static Database $db;
 	private static string $dbPath;
 	public static Request $req;
+	public static array $s = []; // game settings
 
 	public function __construct(string $dbPath)
 	{
 		self::$req = new Request(); // the current request
 		self::$db = new Database($dbPath); // the database
 		self::$dbPath = $dbPath; // the database path
+
+		// load game settings
+		$s = self::$db->q('SELECT * FROM settings WHERE id = 1;');
+		self::$s = $s ? $s->fetch() : [];
 	}
 
 	public static function performDatabaseReset(): void
diff --git a/server/library.php b/server/library.php
index e2bfa12..eb2fd19 100644
--- a/server/library.php
+++ b/server/library.php
@@ -1,32 +1,42 @@
 <?php // library.php :: Common functions used throughout the program.
 
+// Diff two times in seconds.
 function stopwatch(float $start, int $roundTo = 3): float
 {
     return round(microtime(true) - $start, $roundTo);
 }
 
+// Redirect to another page.
 function redirect(string $url): void
 {
     header("Location: $url");
     exit;
 }
 
+// Redirect to the install page if not installed.
+// Otherwise, redirect to the main page if requesting the install page.
 function installRedirect(string $route)
 {
     if (!INSTALLED && $route != 'install') redirect('/install');
 	if (INSTALLED && $route == 'install') redirect('/');
 }
 
+// Get the path to a template.
 function template(string $name): string
 {
     return SERVER."/templates/$name.php";
 }
 
-/**
- * Renders a template. Pass data to it - uses an output buffer to have PHP process the template instead of using
- * a template engine. If you're including partials in the page, call `render('partial', $data)`, as $data will still
- * be available.
- */
+// Checks if all required fields are set.
+function required(array $keys): bool
+{
+    foreach ($keys as $key) if (!isset($_POST[$key]) || empty($_POST[$key])) return false;
+    return true;
+}
+
+// Renders a template. Pass data to it - uses an output buffer to have PHP process the template instead of using
+// a template engine. If you're including partials in the page, call `render('partial', $data)`, as $data will still
+// be available.
 function render(string $baseView, array $data = []): string
 {
     ob_start();
@@ -35,20 +45,7 @@ function render(string $baseView, array $data = []): string
     return ob_get_clean();
 }
 
-/**
- * Checks if all required fields are set.
- */
-function required(array $keys): bool
-{
-    foreach ($keys as $key) {
-        if (!isset($_POST[$key]) || empty($_POST[$key])) return false;
-    }
-    return true;
-}
-
-/**
- * Dump and die. Useful for debugging.
- */
+// Dump and die.
 function dd(mixed $var, bool $r = false)
 {
 	echo '<pre>';
@@ -57,11 +54,26 @@ function dd(mixed $var, bool $r = false)
 	exit;
 }
 
-function getmicrotime() { // Used for timing script operations.
+// Calculate the EXP to level up, given a level.
+function expToLevel(int $level): int
+{
+	// constants for the quadratic formula
+    $a = 5; // adjust this value to change the curve's steepness
+    $b = 20; // adjust this value to change the initial XP increase
+    $baseOffset = 0;  // starting point, no initial offset
 
-    list($usec, $sec) = explode(" ",microtime()); 
-    return ((float)$usec + (float)$sec); 
+    if ($level == 1) return 0; // level 1 does not require any XP
 
+	// calculate the dynamic offset based on the level
+    $additionalOffset = floor(($level - 1) / 20) * 100;
+
+    // total offset
+    $c = $baseOffset + $additionalOffset;
+
+    // calculate the experience required for the given level
+    $experience = $a * pow($level - 1, 2) + $b * ($level - 1) + $c;
+
+    return $experience;
 }
 
 function prettydate($uglydate) { // Change the MySQL date format (YYYY-MM-DD) into something friendlier.
diff --git a/server/models/Classes.php b/server/models/Classes.php
index 042672e..14ad5a1 100644
--- a/server/models/Classes.php
+++ b/server/models/Classes.php
@@ -7,4 +7,25 @@ class Classes
 		$res = App::$db->q("SELECT * FROM classes");
 		return $res->fetchAll() ?: false;
 	}
+
+	public static function get(int $id): array|false
+	{
+		$res = App::$db->do("SELECT * FROM classes WHERE id = ?", [$id]);
+		return $res->fetch() ?: false;
+	}
+
+	// Spell definitions are in the DB under the spell columns;
+	// level:spell_id,spell_id|level:spell_id
+	// This means that as level increases, more spells are available.
+	public static function spellsToArray(string $spells): array
+	{
+		$list = [];
+		$groups = explode('|', $spells);
+		foreach ($groups as $group) {
+			$parts = explode(':', $group);
+			// first part will be level, second part will be spell_ids
+			$list[$parts[0]] = explode(',', $parts[1]);
+		}
+		return $list;
+	}
 }
\ No newline at end of file
diff --git a/server/models/Player.php b/server/models/Player.php
index e81914b..d9df48c 100644
--- a/server/models/Player.php
+++ b/server/models/Player.php
@@ -4,9 +4,29 @@ class Player
 {
 	public static function create(array $data): int
 	{
+		// get the player's class
+		$class = Classes::get($data['class_id'] ?? 1);
+		if ($class == false) die('Player::create: Invalid class selected. ' . print_r($data, true));
+
+		// get player level
+		$l = $data['level'] ?? 1;
+
+		// calculate player stats
+		$data['hp'] = $data['max_hp'] = $data['max_hp'] ?? ($class['start_hp'] + ($class['growth_hp'] * ($l - 1)));
+		$data['mp'] = $data['max_mp'] = $data['max_mp'] ?? ($class['start_mp'] + ($class['growth_mp'] * ($l - 1)));
+		$data['tp'] = $data['max_tp'] = $data['max_tp'] ?? (5 + (App::$s['tp_growth'] * ($l - 1)));
+		$data['str'] = $data['str'] ?? ($class['start_str'] + ($class['growth_str'] * ($l - 1)));
+		$data['atk'] = $data['atk'] ?? ($class['start_atk'] + ($class['growth_atk'] * ($l - 1)));
+		$data['def'] = $data['def'] ?? ($class['start_def'] + ($class['growth_def'] * ($l - 1)));
+		$data['dex'] = $data['dex'] ?? ($class['start_dex'] + ($class['growth_dex'] * ($l - 1)));
+		$data['stat_points'] = $data['stat_points'] ?? (App::$s['stat_point_gain'] * ($l - 1));
+		$data['exp2l'] = $data['exp2l'] ?? expToLevel($l + 1);
+
+		// compress data and generate placeholers
 		$keys = implode(', ', array_keys($data));
 		$placeholders = implode(', ', array_fill(0, count($data), '?'));
 
+		// insert into db
 		App::$db->do("INSERT INTO 'players' ($keys) VALUES ($placeholders);", array_values($data));
 		return App::$db->lastInsertID();
 	}
diff --git a/server/modules/InstallModule.php b/server/modules/InstallModule.php
index 04b0290..8dd7ce8 100644
--- a/server/modules/InstallModule.php
+++ b/server/modules/InstallModule.php
@@ -47,7 +47,9 @@ class InstallModule
 			'verify_email' INT DEFAULT 1,
 			'show_news' INT DEFAULT 1,
 			'show_online' INT DEFAULT 1,
-			'show_babble' INT DEFAULT 1
+			'show_babble' INT DEFAULT 1,
+			'tp_growth' INT DEFAULT 1,
+			'stat_point_gain' INT DEFAULT 5
 		);");
 
 		// insert default settings
@@ -198,14 +200,15 @@ class InstallModule
 			'class_id' INTEGER DEFAULT 1,
 			'level' INTEGER DEFAULT 1,
 			'exp' INTEGER DEFAULT 0,
+			'exp2l' INTEGER DEFAULT 0,
 			'gold' INTEGER DEFAULT 0,
 			'stat_points' INTEGER DEFAULT 0,
 			'hp' INTEGER DEFAULT 0,
 			'max_hp' INTEGER DEFAULT 0,
 			'mp' INTEGER DEFAULT 0,
 			'max_mp' INTEGER DEFAULT 0,
-			'tp' INTEGER DEFAULT 0,
-			'max_tp' INTEGER DEFAULT 0,
+			'tp' INTEGER DEFAULT 5,
+			'max_tp' INTEGER DEFAULT 5,
 			'str' INTEGER DEFAULT 0,
 			'atk' INTEGER DEFAULT 0,
 			'dex' INTEGER DEFAULT 0,
@@ -256,7 +259,7 @@ class InstallModule
 		}
 
 		// Make sure the class selection is valid
-		$class = isset($_POST['class']) && in_array($_POST['class'], [1, 2, 3]) ? $_POST['class'] : 1;
+		$class = isset($_POST['class']) ? $_POST['class'] : 1;
 
 		// If we have any errors, bail to the form and let the user know
 		if (!empty($errors)) {
@@ -274,7 +277,8 @@ class InstallModule
 			'email'    => trim($_POST['email']),
 			'class_id' => $class,
 			'verified' => 1,
-			'role'     => 5
+			'role'     => 5,
+			'level'    => $_POST['level'] ?? 1
 		]);
 
 		// Render the finished page!
diff --git a/server/templates/install/partials/adminForm.php b/server/templates/install/partials/adminForm.php
index 101af37..09630bb 100644
--- a/server/templates/install/partials/adminForm.php
+++ b/server/templates/install/partials/adminForm.php
@@ -27,5 +27,10 @@
         </div>
     <?php endif; ?>
 
+	<div class="form-group">
+		<label for="level">Level</label>
+		<input type="number" name="level" id="level" min="1" placeholder="1" required>
+	</div>
+
     <button type="submit" name="submit">Submit</button>
 </form>