Revival of the GrimoireJS project

scrolls.js

@@ -0,0 +1,47 @@
+/*global _:false */
+/*global Spells:true */
+'use strict';
+var Scrolls = {};
+Scrolls.cost = [12.5, 25, 150, 375, 700, 1125, 1650, 2275, 3000, 3825];
+
+Scrolls.getLevelScroll = function(level, type) {
+    if(level < 0 || level > 9) return;
+    if(type === undefined) {
+        type = _.random(0,1) ? 'arcane' : 'divine';
+    }
+    var spell = Spells.getLevelSpell(level, type);
+    return {'name': 'Scroll of ' + spell.name, 
+            'description': '(' + type + ', spell level ' + level + ', caster level ' + _.max([1, (level*2-1)]) + ')',
+            'cost': Scrolls.cost[level],
+            };
+};
+
+Scrolls.getScroll = function(type) {
+    var roll = _.random(1,100);
+    if(type == 'minor') {
+        switch(true) {
+            case (roll <= 5): return Scrolls.getLevelScroll(0);
+            case (roll <= 50): return Scrolls.getLevelScroll(1);
+            case (roll <= 95): return Scrolls.getLevelScroll(2);
+            case (roll <= 100): return Scrolls.getLevelScroll(3);
+        }
+    }
+    else if(type == 'medium') {
+        switch(true) {
+            case (roll <= 5): return Scrolls.getLevelScroll(2);
+            case (roll <= 65): return Scrolls.getLevelScroll(3);
+            case (roll <= 95): return Scrolls.getLevelScroll(4);
+            case (roll <= 100): return Scrolls.getLevelScroll(5);
+        }
+    }
+    else if(type == 'major') {
+        switch(true) {
+            case (roll <= 5): return Scrolls.getLevelScroll(4);
+            case (roll <= 50): return Scrolls.getLevelScroll(5);
+            case (roll <= 70): return Scrolls.getLevelScroll(6);
+            case (roll <= 85): return Scrolls.getLevelScroll(7);
+            case (roll <= 95): return Scrolls.getLevelScroll(8);
+            case (roll <= 100): return Scrolls.getLevelScroll(9);
+        }
+    }
+};