Map : Triangle color based on elevation

ui/map/map.gd

@@ -42,10 +42,17 @@ func create_map():
 	
 
 func draw_triangles():
-	for polygon in terrain.get_triangles_as_polygon():
+	for triangle in terrain.get_triangles():
+		var colors = Gradient.new()
+		colors.add_point(0.999,  Color("#9e0142")) # red
+		colors.add_point(0.5,  Color("#dc865d")) # orange
+		colors.add_point(0.25,  Color("#fbf8b0")) # yellow
+		colors.add_point(0,  Color("#89cfa5")) # green
+		colors.add_point(-0.999,  Color("#5e4fa2")) # blue
 		var color = Color(randf(), randf(), randf(), 1)
-		if polygon.size() > 2:
-			draw_polygon(polygon, PoolColorArray([color]))
+		color = colors.interpolate(min(triangle.get_data("elevation"), 0.999))
+		if triangle.polygon().size() > 2:
+			draw_polygon(triangle.polygon(), PoolColorArray([color]))
 		
 func draw_triangles_edges(color=Color("#000000")):
 	for line in terrain.get_edges_as_line():

world/game.gd

@@ -28,8 +28,8 @@ func _ready():
 	emit_signal("world_loaded", terrain)
 
 func init_points_data():
-	for index in terrain.get_points().size():
-		terrain.get_point(index).set_elevation(find_elevation(terrain.get_point(index).point2d()))
+	for point in terrain.get_points():
+		point.set_elevation(find_point_elevation(point.point2d()))
 #		points_data.append({
 #			"elevation": 0,
 #			"used": false,
@@ -39,8 +39,10 @@ func init_points_data():
 #			"mountain": false,
 #			"river": false
 #		})
+	for triangle in terrain.get_triangles():
+		triangle.set_data("elevation", find_triangle_elevation(triangle))
 
-func find_elevation(point):
+func find_point_elevation(point):
 	var border = border_width + rng.randf_range(-20.0, 20.0)
 	var elevation = noise.get_noise_2d(point.x / wavelength, point.y / wavelength)
 	
@@ -60,11 +62,12 @@ func find_elevation(point):
 		
 	elevation = min(elevation, 1)
 		
-	elevation = elevation * terraces
+	# elevation = elevation * terraces
+	return elevation
+
+func find_triangle_elevation(triangle):
+	var elevation = 0
+	for point in triangle.points():
+		elevation += point.get_elevation()
+	elevation /= 3
 	return elevation
-#
-#	if points_data[point_id].elevation <= 0:
-#		points_data[point_id].water = true
-#
-#	if points_data[point_id].elevation >= mountain_height:
-#		points_data[point_id].mountain = true