163 lines
3.7 KiB
GDScript
163 lines
3.7 KiB
GDScript
tool
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extends Node2D
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var image := Image.new()
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var table := ImageTexture.new()
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onready var Util = preload("res://Util.gd")
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var corners = [
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Vector2(-0.4, -0.4),
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Vector2(0.1, -0.4),
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Vector2(0.1, 0.1),
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Vector2(-0.4, 0.1),
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Vector2(-0.1, -0.1),
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Vector2(0.4, -0.1),
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Vector2(0.4, 0.4),
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Vector2(-0.1, 0.4),
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]
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var picked_point = -1
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var rear_matrix := []
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var front_matrix := []
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var canvas_inv : Transform2D
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var canvas_trans : Transform2D
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# Called when the node enters the scene tree for the first time.
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func _ready():
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update_canvas_inv()
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image.create(8, 1, false, Image.FORMAT_RGBAF)
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table.create_from_image(image, 0)
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#table.create(8, 1, Image.FORMAT_RGBAF, 0)
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#image = table.get_data()
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image.lock()
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for i in range(8):
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image.set_pixel(i, 0,
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Color(1.0, 0.0, 0.0))
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image.unlock()
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table.set_data(image)
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$"../Sprite".texture = table
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$"../CSGBox".material.set_shader_param("table", table)
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_update_matrix()
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func update_canvas_inv():
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while true:
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var viewport_size = get_viewport_rect().size
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canvas_inv = Transform2D(
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Vector2(2.0 / viewport_size.x, 0.0),
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Vector2(0.0, -2.0 / viewport_size.y),
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Vector2(-1.0, 1.0)
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)
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canvas_trans = canvas_inv.affine_inverse()
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update()
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yield(get_viewport(), "size_changed")
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func _input(event):
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#print(canvas_inv.xform(get_local_mouse_position()))
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#print(event.as_text())
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var mouse_position = get_viewport().get_mouse_position()
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if event is InputEventMouseButton:
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if event.button_index == BUTTON_LEFT:
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if event.pressed:
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_pick_point(canvas_inv.xform(mouse_position))
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else:
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picked_point = -1
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if event is InputEventMouseMotion:
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if picked_point != -1:
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corners[picked_point] = canvas_inv.xform(mouse_position)
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_update_matrix()
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update()
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func _draw():
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for i in range(4):
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draw_line(
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canvas_trans.xform(corners[i]),
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canvas_trans.xform(corners[wrapi(i + 1, 0, 4)]),
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Color.maroon)
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for i in range(4):
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draw_circle(canvas_trans.xform(corners[i]), 10.0, Color.maroon)
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for i in range(4):
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draw_line(
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canvas_trans.xform(corners[i]),
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canvas_trans.xform(corners[i + 4]),
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Color.yellow)
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for i in range(4):
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draw_line(
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canvas_trans.xform(corners[i + 4]),
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canvas_trans.xform(corners[wrapi(i + 5, 4, 8)]),
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Color.purple)
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for i in range(4):
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draw_circle(canvas_trans.xform(corners[i + 4]), 10.0, Color.purple)
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draw_texture_rect(table, Rect2(
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Vector2(750.0, 50.0), Vector2(256.0, 32.0)
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), false)
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func _pick_point(mouse_pos):
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var picked_point_so_far = -1
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var nearest_distance = 20.0
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for i in corners.size():
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var distance = corners[i].distance_to(mouse_pos)
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if distance < nearest_distance:
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nearest_distance = distance
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picked_point_so_far = i
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picked_point = picked_point_so_far
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func _update_matrix():
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rear_matrix = Util.plane_3d_to_xy(
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Vector3(-1.0, -1.0, 1.0),
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Vector3(1.0, -1.0, 1.0),
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Vector3(1.0, 1.0, 1.0),
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Vector3(-1.0, 1.0, 1.0),
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corners[0], corners[1], corners[2], corners[3]
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)
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front_matrix = Util.plane_3d_to_xy(
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Vector3(-1.0, -1.0, -1.0),
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Vector3(1.0, -1.0, -1.0),
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Vector3(1.0, 1.0, -1.0),
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Vector3(-1.0, 1.0, -1.0),
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corners[4], corners[5], corners[6], corners[7]
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)
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# rear_matrix = [
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# 0.5, 0.0, 0.0, 0.0,
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# 0.0, 0.5, 0.0, 0.0,
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# 0.0, 0.0, 0.5, 0.0,
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# 0.0, 0.0, 0.0, 8.5,
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# ]
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#
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# front_matrix = [
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# 0.5, 0.0, 0.0, 0.0,
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# 0.0, 0.5, 0.0, 20.0,
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# 0.0, 0.0, 0.5, 0.0,
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# 0.0, 0.0, 0.0, 8.5,
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# ]
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image.lock()
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for i in range(4):
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image.set_pixel(i, 0,
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Color(front_matrix[i * 4], front_matrix[i * 4 + 1],
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front_matrix[i * 4 + 2], front_matrix[i * 4 + 3]))
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for i in range(4):
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image.set_pixel(i + 4, 0,
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Color(rear_matrix[i * 4], rear_matrix[i * 4 + 1],
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rear_matrix[i * 4 + 2], rear_matrix[i * 4 + 3]))
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image.unlock()
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table.set_data(image)
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