-Ability to and unwrap lightmap coordinates on import

-Added unwrap functionality to Mesh
-Ability to display and debug mesh UVs
-Added multiline draw, so it's easier and faster to draw UVs
-Many fixes to SurfaceTool
-Fixes to Thekla Unwrap, but it's a piece of ass and it keeps crashing. Will have to go away

5 files changed, 90 insertions, 0 deletions

diff --git a/servers/visual/rasterizer.h b/servers/visual/rasterizer.h
index 0ee70878dc..df41c3b5ce 100644
--- a/servers/visual/rasterizer.h
+++ b/servers/visual/rasterizer.h
@@ -636,6 +636,7 @@ public:
 		struct CommandPolyLine : public Command {
 
 			bool antialiased;
+			bool multiline;
 			Vector<Point2> triangles;
 			Vector<Color> triangle_colors;
 			Vector<Point2> lines;
@@ -643,6 +644,7 @@ public:
 			CommandPolyLine() {
 				type = TYPE_POLYLINE;
 				antialiased = false;
+				multiline = false;
 			}
 		};
 
diff --git a/servers/visual/visual_server_canvas.cpp b/servers/visual/visual_server_canvas.cpp
index 31c09dc23d..0fed9cc961 100644
--- a/servers/visual/visual_server_canvas.cpp
+++ b/servers/visual/visual_server_canvas.cpp
@@ -416,6 +416,7 @@ void VisualServerCanvas::canvas_item_add_polyline(RID p_item, const Vector<Point
 	ERR_FAIL_COND(!pline);
 
 	pline->antialiased = p_antialiased;
+	pline->multiline = false;
 
 	if (p_width <= 1) {
 		pline->lines = p_points;
@@ -486,6 +487,90 @@ void VisualServerCanvas::canvas_item_add_polyline(RID p_item, const Vector<Point
 	canvas_item->commands.push_back(pline);
 }
 
+void VisualServerCanvas::canvas_item_add_multiline(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, float p_width, bool p_antialiased) {
+
+	ERR_FAIL_COND(p_points.size() < 2);
+	Item *canvas_item = canvas_item_owner.getornull(p_item);
+	ERR_FAIL_COND(!canvas_item);
+
+	Item::CommandPolyLine *pline = memnew(Item::CommandPolyLine);
+	ERR_FAIL_COND(!pline);
+
+	pline->antialiased = false; //todo
+	pline->multiline = true;
+
+	//	if (p_width <= 1) {
+	pline->lines = p_points;
+	pline->line_colors = p_colors;
+	if (pline->line_colors.size() == 0) {
+		pline->line_colors.push_back(Color(1, 1, 1, 1));
+	} else if (pline->line_colors.size() > 1 && pline->line_colors.size() != pline->lines.size()) {
+		pline->line_colors.resize(1);
+	}
+#if 0
+//width not yet
+	} else {
+		//make a trianglestrip for drawing the line...
+		Vector2 prev_t;
+		pline->triangles.resize(p_points.size() * 2);
+		if (p_antialiased) {
+			pline->lines.resize(p_points.size() * 2);
+		}
+
+		if (p_colors.size() == 0) {
+			pline->triangle_colors.push_back(Color(1, 1, 1, 1));
+			if (p_antialiased) {
+				pline->line_colors.push_back(Color(1, 1, 1, 1));
+			}
+		}
+		if (p_colors.size() == 1) {
+			pline->triangle_colors = p_colors;
+			pline->line_colors = p_colors;
+		} else {
+			pline->triangle_colors.resize(pline->triangles.size());
+			pline->line_colors.resize(pline->lines.size());
+		}
+
+		for (int i = 0; i < p_points.size(); i++) {
+
+			Vector2 t;
+			if (i == p_points.size() - 1) {
+				t = prev_t;
+			} else {
+				t = (p_points[i + 1] - p_points[i]).normalized().tangent();
+				if (i == 0) {
+					prev_t = t;
+				}
+			}
+
+			Vector2 tangent = ((t + prev_t).normalized()) * p_width * 0.5;
+
+			if (p_antialiased) {
+				pline->lines[i] = p_points[i] + tangent;
+				pline->lines[p_points.size() * 2 - i - 1] = p_points[i] - tangent;
+				if (pline->line_colors.size() > 1) {
+					pline->line_colors[i] = p_colors[i];
+					pline->line_colors[p_points.size() * 2 - i - 1] = p_colors[i];
+				}
+			}
+
+			pline->triangles[i * 2 + 0] = p_points[i] + tangent;
+			pline->triangles[i * 2 + 1] = p_points[i] - tangent;
+
+			if (pline->triangle_colors.size() > 1) {
+
+				pline->triangle_colors[i * 2 + 0] = p_colors[i];
+				pline->triangle_colors[i * 2 + 1] = p_colors[i];
+			}
+
+			prev_t = t;
+		}
+	}
+#endif
+	canvas_item->rect_dirty = true;
+	canvas_item->commands.push_back(pline);
+}
+
 void VisualServerCanvas::canvas_item_add_rect(RID p_item, const Rect2 &p_rect, const Color &p_color) {
 
 	Item *canvas_item = canvas_item_owner.getornull(p_item);
diff --git a/servers/visual/visual_server_canvas.h b/servers/visual/visual_server_canvas.h
index a92370f1f0..3143ac847f 100644
--- a/servers/visual/visual_server_canvas.h
+++ b/servers/visual/visual_server_canvas.h
@@ -172,6 +172,7 @@ public:
 
 	void canvas_item_add_line(RID p_item, const Point2 &p_from, const Point2 &p_to, const Color &p_color, float p_width = 1.0, bool p_antialiased = false);
 	void canvas_item_add_polyline(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, float p_width = 1.0, bool p_antialiased = false);
+	void canvas_item_add_multiline(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, float p_width = 1.0, bool p_antialiased = false);
 	void canvas_item_add_rect(RID p_item, const Rect2 &p_rect, const Color &p_color);
 	void canvas_item_add_circle(RID p_item, const Point2 &p_pos, float p_radius, const Color &p_color);
 	void canvas_item_add_texture_rect(RID p_item, const Rect2 &p_rect, RID p_texture, bool p_tile = false, const Color &p_modulate = Color(1, 1, 1), bool p_transpose = false, RID p_normal_map = RID());
diff --git a/servers/visual/visual_server_raster.h b/servers/visual/visual_server_raster.h
index 9223d81e32..d843c443a2 100644
--- a/servers/visual/visual_server_raster.h
+++ b/servers/visual/visual_server_raster.h
@@ -551,6 +551,7 @@ public:
 
 	BIND6(canvas_item_add_line, RID, const Point2 &, const Point2 &, const Color &, float, bool)
 	BIND5(canvas_item_add_polyline, RID, const Vector<Point2> &, const Vector<Color> &, float, bool)
+	BIND5(canvas_item_add_multiline, RID, const Vector<Point2> &, const Vector<Color> &, float, bool)
 	BIND3(canvas_item_add_rect, RID, const Rect2 &, const Color &)
 	BIND4(canvas_item_add_circle, RID, const Point2 &, float, const Color &)
 	BIND7(canvas_item_add_texture_rect, RID, const Rect2 &, RID, bool, const Color &, bool, RID)
diff --git a/servers/visual/visual_server_wrap_mt.h b/servers/visual/visual_server_wrap_mt.h
index b58b1d917e..94f450c024 100644
--- a/servers/visual/visual_server_wrap_mt.h
+++ b/servers/visual/visual_server_wrap_mt.h
@@ -467,6 +467,7 @@ public:
 
 	FUNC6(canvas_item_add_line, RID, const Point2 &, const Point2 &, const Color &, float, bool)
 	FUNC5(canvas_item_add_polyline, RID, const Vector<Point2> &, const Vector<Color> &, float, bool)
+	FUNC5(canvas_item_add_multiline, RID, const Vector<Point2> &, const Vector<Color> &, float, bool)
 	FUNC3(canvas_item_add_rect, RID, const Rect2 &, const Color &)
 	FUNC4(canvas_item_add_circle, RID, const Point2 &, float, const Color &)
 	FUNC7(canvas_item_add_texture_rect, RID, const Rect2 &, RID, bool, const Color &, bool, RID)