From 93bb2d0893eb243970b8865fcd960037006d585b Mon Sep 17 00:00:00 2001
From: Jayant Jain <jayantjain1992@gmail.com>
Date: Sat, 15 Mar 2014 20:28:26 +0530
Subject: [PATCH] Restricts wizard to level bounds when moving around

---
 app/lib/surface/WizardSprite.coffee | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/app/lib/surface/WizardSprite.coffee b/app/lib/surface/WizardSprite.coffee
index 58eec1dc7..cf07adc68 100644
--- a/app/lib/surface/WizardSprite.coffee
+++ b/app/lib/surface/WizardSprite.coffee
@@ -120,11 +120,20 @@ module.exports = class WizardSprite extends IndieSprite
 
     @shoveOtherWizards(true) if @targetSprite
     @targetSprite = if isSprite then newTarget else null
-    @targetPos = targetPos
+    @targetPos = @boundWizard targetPos
     @beginMoveTween(duration, isLinear)
     @shoveOtherWizards()
     Backbone.Mediator.publish('self-wizard:target-changed', {sender:@}) if @isSelf
 
+  boundWizard: (target) ->
+    # Passed an {x, y} in world coordinates, returns {x, y} within world bounds
+    return target unless @options.camera.bounds
+    @bounds = @options.camera.bounds
+    surfaceTarget = @options.camera.worldToSurface target
+    x = Math.min(Math.max(surfaceTarget.x, @bounds.x), @bounds.x + @bounds.width)
+    y = Math.min(Math.max(surfaceTarget.y, @bounds.y), @bounds.y + @bounds.height)
+    return @options.camera.surfaceToWorld {x: x, y: y}
+
   getPosFromTarget: (target) ->
     """
     Could be null, a vector, or sprite object. Get the position from any of these.