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100 lines
2.8 KiB
100 lines
2.8 KiB
extends Node2D
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var terrain
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func heightmap():
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for triangle in terrain.get_triangles():
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var colors = Gradient.new()
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colors.add_point(0.999, Color("#9e0142")) # red
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colors.add_point(0.5, Color("#dc865d")) # orange
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colors.add_point(0.25, Color("#fbf8b0")) # yellow
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colors.add_point(0, Color.green) # green
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colors.add_point(-0.999, Color("#5e4fa2")) # blue
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var color = colors.interpolate(min(triangle.get_data("elevation"), 0.999))
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if triangle.get_data("ocean"):
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var factor = pow((triangle.get_data("elevation")+1), 10) / 5.0
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color = Color("#5e4fa2") + Color(factor, factor, factor, 0.0)
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if triangle.polygon().size() > 2:
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draw_polygon(triangle.polygon(), PoolColorArray([color]))
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func draw_triangles_edges(color=Color("#000000")):
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for line in terrain.get_edges_as_line():
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draw_line(line[0], line[1], color)
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func draw_voronoi_edges(color=Color("#000000")):
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for line in terrain.get_voronoi_edges_as_line():
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draw_line(line[0], line[1], color)
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func draw_voronoi_cells_old():
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var seen = []
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for edge_idx in terrain.edges():
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var triangles = []
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var vertices = []
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var p = terrain._triangles[terrain.next_half_edge(edge_idx)]
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if not seen.has(p):
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seen.append(p)
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var edges = terrain.edges_around_point(edge_idx)
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for edge_around_idx in edges:
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triangles.append(terrain.triangle_of_edge(edge_around_idx))
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for triangle in triangles:
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vertices.append(terrain.triangle_center(triangle))
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if triangles.size() > 2:
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var color = Color(randf(), randf(), randf(), 1)
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var voronoi_cell = PoolVector2Array()
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for vertice in vertices:
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voronoi_cell.append(Vector2(vertice.x, vertice.z))
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draw_polygon(voronoi_cell, PoolColorArray([color]))
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func draw_voronoi_cells():
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for polygon in terrain.get_voronoi_cells_as_polygon():
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var color = Color(randf(), randf(), randf(), 1)
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if polygon.size() > 2:
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draw_polygon(polygon, PoolColorArray([color]))
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func draw_voronoi_cells_convex_hull():
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for point_idx in terrain.points():
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var triangles = []
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var vertices = []
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var incoming = terrain._points_to_half_edges.get(point_idx)
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if incoming == null:
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triangles.append(0)
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else:
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var edges = terrain.edges_around_point(incoming)
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for edge_idx in edges:
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triangles.append(terrain.triangle_of_edge(edge_idx))
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for triangle_idx in triangles:
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vertices.append(terrain.triangle_center(triangle_idx))
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if triangles.size() > 2:
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var color = Color(randf(), randf(), randf(), 1)
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var voronoi_cell = PoolVector2Array()
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for vertice in vertices:
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voronoi_cell.append(Vector2(vertice[0], vertice[1]))
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draw_polygon(voronoi_cell, PoolColorArray([color]))
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func _draw():
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print("before drawing")
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heightmap()
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# draw_voronoi_cells()
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# draw_triangles_edges()
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# draw_voronoi_cells_convex_hull()
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# draw_voronoi_edges(Color("#ff0000"))
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func _on_Game_world_loaded(game_terrain):
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terrain = game_terrain
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update()
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