1 files changed, 66 insertions, 0 deletions
diff --git a/assets/javascripts/rectangles/map/draw.js b/assets/javascripts/rectangles/map/draw.js
new file mode 100644
index 0000000..eb3dece
--- /dev/null
+++ b/assets/javascripts/rectangles/map/draw.js
@@ -0,0 +1,66 @@
+function clear_canvas(){
+	ctx.fillStyle = "rgba(255,255,255,0.7)"
+	ctx.clearRect(0,0,w,h)
+	ctx.fillRect(0,0,w,h)
+}
+function draw_ruler(){
+	ctx.strokeStyle = "rgba(80,80,80,0.5)"
+	ctx.lineWidth = 1
+	var len = 5
+	for (var i = 0.5; i < w; i += 10) {
+		line(i, 0, i, len)
+		line(0, i, len, i)
+	}
+}
+function line (x,y,a,b,translation){
+	if (translation) {
+		x += translation.a
+		a += translation.a
+		y += translation.b
+		b += translation.b
+	}
+	ctx.beginPath()
+	ctx.moveTo(x,y)
+	ctx.lineTo(a,b)
+	ctx.stroke()
+}
+function draw_regions(regions){
+	for (var i = 0; i < regions.length; i++) {
+		if (regions[i].dupe) continue
+		ctx.fillStyle = colors[i % colors.length]
+		fill_region(regions[i])
+		stroke_sides(regions[i])
+	}
+}
+function draw_mouse(mouse){
+	ctx.fillStyle = "rgba(255,0,0,0.4)";
+	ctx.beginPath();
+	ctx.arc(mouse.x.b, mouse.y.b, 5, 0, 2*Math.PI, false);
+	ctx.fill();
+
+	if (mouse.width() != 0 && mouse.height() != 0) {
+		if (clipper.dragging) {
+			stroke_rect(mouse)
+		}
+		else {
+			ctx.fillStyle = "rgba(255,255,0,0.5)"
+			fill_region( mouse.clone().translate() )
+		}
+	}
+}
+
+function fill_region(r){
+	ctx.fillRect(r.x.a + r.translation.a,
+							 r.y.a + r.translation.b,
+							 r.x.length(),
+							 r.y.length())
+}
+function stroke_sides (r){
+	if (r.sides & FRONT) line(r.x.a, r.y.a, r.x.b, r.y.a)
+	if (r.sides &  BACK) line(r.x.a, r.y.b, r.x.b, r.y.b)
+	if (r.sides &  LEFT) line(r.x.a, r.y.a, r.x.a, r.y.b)
+	if (r.sides & RIGHT) line(r.x.b, r.y.a, r.x.b, r.y.b)
+}
+function stroke_rect (r){
+	line(r.x.a, r.y.a, r.x.b, r.y.b, r.translation)
+}