mirror of
https://github.com/godotengine/godot-demo-projects.git
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148 lines
4.5 KiB
GDScript
148 lines
4.5 KiB
GDScript
tool
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extends Control
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var zoom_level := 0
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var is_panning = false
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var pan_center: Vector2
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var viewport_center: Vector2
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var view_mode_index := 0
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var editor_interface: EditorInterface # Set in node25d_plugin.gd
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var moving = false
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onready var viewport_2d = $Viewport2D
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onready var viewport_overlay = $ViewportOverlay
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onready var view_mode_button_group: ButtonGroup = $"../TopBar/ViewModeButtons/45Degree".group
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onready var zoom_label: Label = $"../TopBar/Zoom/ZoomPercent"
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onready var gizmo_25d_scene = preload("res://addons/node25d/main_screen/gizmo_25d.tscn")
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func _ready():
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# Give Godot a chance to fully load the scene. Should take two frames.
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yield(get_tree(), "idle_frame")
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yield(get_tree(), "idle_frame")
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var edited_scene_root = get_tree().edited_scene_root
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if !edited_scene_root:
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# Godot hasn't finished loading yet, so try loading the plugin again.
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editor_interface.set_plugin_enabled("node25d", false)
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editor_interface.set_plugin_enabled("node25d", true)
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return
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# Alright, we're loaded up. Now check if we have a valid world and assign it.
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var world_2d = edited_scene_root.get_viewport().world_2d
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if world_2d == get_viewport().world_2d:
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return # This is the MainScreen25D scene opened in the editor!
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viewport_2d.world_2d = world_2d
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func _process(delta):
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if !editor_interface: # Something's not right... bail!
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return
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# View mode polling.
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var view_mode_changed_this_frame = false
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var new_view_mode = view_mode_button_group.get_pressed_button().get_index()
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if view_mode_index != new_view_mode:
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view_mode_index = new_view_mode
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view_mode_changed_this_frame = true
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_recursive_change_view_mode(get_tree().edited_scene_root)
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# Zooming.
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if Input.is_mouse_button_pressed(BUTTON_WHEEL_UP):
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zoom_level += 1
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elif Input.is_mouse_button_pressed(BUTTON_WHEEL_DOWN):
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zoom_level -= 1
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var zoom = _get_zoom_amount()
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# Viewport size.
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var size = get_global_rect().size
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viewport_2d.size = size
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# Viewport transform.
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var viewport_trans = Transform2D.IDENTITY
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viewport_trans.x *= zoom
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viewport_trans.y *= zoom
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viewport_trans.origin = viewport_trans.basis_xform(viewport_center) + size / 2
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viewport_2d.canvas_transform = viewport_trans
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viewport_overlay.canvas_transform = viewport_trans
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# Delete unused gizmos.
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var selection = editor_interface.get_selection().get_selected_nodes()
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var overlay_children = viewport_overlay.get_children()
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for overlay_child in overlay_children:
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var contains = false
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for selected in selection:
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if selected == overlay_child.node_25d and !view_mode_changed_this_frame:
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contains = true
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if !contains:
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overlay_child.queue_free()
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# Add new gizmos.
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for selected in selection:
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if selected is Node25D:
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var new = true
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for overlay_child in overlay_children:
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if selected == overlay_child.node_25d:
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new = false
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if new:
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var gizmo = gizmo_25d_scene.instance()
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viewport_overlay.add_child(gizmo)
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gizmo.node_25d = selected
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gizmo.initialize()
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# This only accepts input when the mouse is inside of the 2.5D viewport.
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func _gui_input(event):
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if event is InputEventMouseButton:
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if event.is_pressed():
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if event.button_index == BUTTON_WHEEL_UP:
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zoom_level += 1
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accept_event()
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elif event.button_index == BUTTON_WHEEL_DOWN:
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zoom_level -= 1
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accept_event()
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elif event.button_index == BUTTON_MIDDLE:
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is_panning = true
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pan_center = viewport_center - event.position
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accept_event()
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elif event.button_index == BUTTON_LEFT:
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var overlay_children = viewport_overlay.get_children()
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for overlay_child in overlay_children:
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overlay_child.wants_to_move = true
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accept_event()
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elif event.button_index == BUTTON_MIDDLE:
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is_panning = false
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accept_event()
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elif event.button_index == BUTTON_LEFT:
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var overlay_children = viewport_overlay.get_children()
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for overlay_child in overlay_children:
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overlay_child.wants_to_move = false
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accept_event()
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elif event is InputEventMouseMotion:
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if is_panning:
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viewport_center = pan_center + event.position
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accept_event()
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func _recursive_change_view_mode(current_node):
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if current_node.has_method("set_view_mode"):
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current_node.set_view_mode(view_mode_index)
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for child in current_node.get_children():
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_recursive_change_view_mode(child)
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func _get_zoom_amount():
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var zoom_amount = pow(1.05476607648, zoom_level) # 13th root of 2
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zoom_label.text = str(round(zoom_amount * 1000) / 10) + "%"
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return zoom_amount
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func _on_ZoomOut_pressed():
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zoom_level -= 1
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func _on_ZoomIn_pressed():
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zoom_level += 1
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func _on_ZoomReset_pressed():
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zoom_level = 0
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