Danil Iarosh
ca52efbedc
Godot 4.7 project for authoring, previewing, validating, and building Exchanger PCK themes. Includes the example and space-pixel themes, binding contracts, editor tooling, validation/build scripts, and project documentation.
133 lines
2.8 KiB
GDScript
133 lines
2.8 KiB
GDScript
class_name PetCompositePreviewRuntime
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extends RefCounted
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signal anchor_changed(anchor: Vector2)
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var _run_id: int
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var _viewport_rect: Rect2
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var _anchor: Vector2
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var _support_id: String
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var _support_anchor: Vector2
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var _active := true
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var _support_contacts := "solid"
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var _screen_bounds := "clamp"
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var _landing_surface_id := ""
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var _wrap_margin := 0.0
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var _wrapped := false
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func _init(
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run_id: int,
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viewport_rect: Rect2,
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anchor: Vector2,
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support_id: String,
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support_anchor: Vector2
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) -> void:
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_run_id = run_id
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_viewport_rect = viewport_rect
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_anchor = anchor
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_support_id = support_id
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_support_anchor = support_anchor
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func GetRunId() -> int:
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return _run_id
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func IsActive() -> bool:
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return _active
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func GetViewportRect() -> Rect2:
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return _viewport_rect
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func GetAnchor() -> Vector2:
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return _anchor
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func GetHighestSupport() -> Dictionary:
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return {
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"accepted": _active,
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"valid": _active,
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"surface_id": _support_id,
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"anchor": _support_anchor,
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}
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func SetMotionPolicy(policy: Dictionary) -> bool:
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if not _active:
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return false
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_support_contacts = str(policy.get("support_contacts", _support_contacts))
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_screen_bounds = str(policy.get("screen_bounds", _screen_bounds))
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_landing_surface_id = str(policy.get("landing_surface_id", ""))
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_wrap_margin = maxf(0.0, float(policy.get("wrap_margin", 0.0)))
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if _screen_bounds == "wrap_vertical_once":
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_wrapped = false
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return true
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func SetAnchor(anchor: Vector2) -> Dictionary:
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if not _active:
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return {"accepted": false}
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_anchor = anchor
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anchor_changed.emit(_anchor)
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return {"accepted": true, "anchor": _anchor}
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func MoveAnchor(delta: Vector2) -> Dictionary:
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if not _active:
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return {"accepted": false}
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var previous := _anchor
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var next := previous + delta
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var wrapped_now := false
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if (
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_screen_bounds == "wrap_vertical_once"
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and not _wrapped
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and next.y > _viewport_rect.end.y + _wrap_margin
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):
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var overflow := next.y - (_viewport_rect.end.y + _wrap_margin)
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next.y = _viewport_rect.position.y - _wrap_margin + overflow
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_wrapped = true
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wrapped_now = true
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var landed := false
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if (
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_support_contacts == "after_vertical_wrap"
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and _wrapped
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and _landing_surface_id == _support_id
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and delta.y >= 0.0
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and previous.y <= _support_anchor.y
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and next.y >= _support_anchor.y
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):
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next = _support_anchor
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landed = true
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_anchor = next
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anchor_changed.emit(_anchor)
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return {
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"accepted": true,
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"anchor": _anchor,
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"wrapped": wrapped_now,
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"landed": landed,
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"surface_id": _support_id if landed else "",
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}
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func LandOnSupport(surface_id: String) -> Dictionary:
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if not _active or surface_id != _support_id:
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return {"accepted": _active, "landed": false}
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_anchor = _support_anchor
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anchor_changed.emit(_anchor)
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return {
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"accepted": true,
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"landed": true,
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"anchor": _anchor,
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"surface_id": _support_id,
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}
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func invalidate() -> void:
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_active = false
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