separate orbit test & add mousewheel zoom

1 files changed, 20 insertions, 1 deletions

diff --git a/public/assets/javascripts/rectangles/engine/map/draw.js b/public/assets/javascripts/rectangles/engine/map/draw.js
index b525696..564b351 100644
--- a/public/assets/javascripts/rectangles/engine/map/draw.js
+++ b/public/assets/javascripts/rectangles/engine/map/draw.js
@@ -228,7 +228,7 @@ Map.Draw = function(map, opt){
 		line(r.x.a, r.y.a, r.x.b, r.y.b, r.translation)
 	}
 
-	function dot_at (x,z){
+	draw.dot_at = function dot_at (x,z){
 		ctx.save()
 		ctx.translate(x,z)
 
@@ -240,4 +240,23 @@ Map.Draw = function(map, opt){
 
 		ctx.restore()
 	}
+
+	draw.x_at = function x_at (x, z, length){
+		ctx.save()
+		ctx.translate(x,z)
+
+		var len = (length/2 || 4) / map.zoom
+
+    ctx.lineCap = "square"
+    ctx.lineWidth = 2/map.zoom
+    ctx.beginPath()
+		ctx.moveTo( -len, -len);
+		ctx.lineTo(  len,  len);
+		ctx.moveTo( -len,  len);
+		ctx.lineTo(  len, -len);
+		ctx.stroke();
+
+		ctx.restore()
+	}
+
 }
\ No newline at end of file