Handles pot item placement and interaction in the dungeon editor. More...

#include <item_interaction_handler.h>

Inheritance diagram for yaze::editor::ItemInteractionHandler:

Collaboration diagram for yaze::editor::ItemInteractionHandler:

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Public Member Functions
void	BeginPlacement () override
	Begin placement mode.

void	CancelPlacement () override
	Cancel current placement.

bool	IsPlacementActive () const override
	Check if placement mode is active.

bool	HandleClick (int canvas_x, int canvas_y) override
	Handle mouse click at canvas position.

void	HandleDrag (ImVec2 current_pos, ImVec2 delta) override
	Handle mouse drag.

void	HandleRelease () override
	Handle mouse release.

void	DrawGhostPreview () override
	Draw ghost preview during placement.

void	DrawSelectionHighlight () override
	Draw selection highlight for selected entities.

std::optional< size_t >	GetEntityAtPosition (int canvas_x, int canvas_y) const override
	Get entity at canvas position.

void	SetItemId (uint8_t id)
	Set item ID for placement.

uint8_t	GetItemId () const
	Get current item ID for placement.

void	SelectItem (size_t index)
	Select item at index.

void	ClearSelection ()
	Clear item selection.

bool	HasSelection () const
	Check if an item is selected.

std::optional< size_t >	GetSelectedIndex () const
	Get selected item index.

void	DeleteSelected ()
	Delete selected item.

Public Member Functions inherited from yaze::editor::BaseEntityHandler
virtual	~BaseEntityHandler ()=default

void	SetContext (InteractionContext *ctx)
	Set the interaction context.

InteractionContext *	context () const
	Get the interaction context.

Private Member Functions
void	PlaceItemAtPosition (int canvas_x, int canvas_y)
	Place item at position.

Private Attributes
bool	item_placement_mode_ = false

uint8_t	preview_item_id_ = 0

std::optional< size_t >	selected_item_index_

bool	is_dragging_ = false

ImVec2	drag_start_pos_

ImVec2	drag_current_pos_

Additional Inherited Members
Protected Member Functions inherited from yaze::editor::BaseEntityHandler
std::pair< int, int >	RoomToCanvas (int room_x, int room_y) const
	Convert room tile coordinates to canvas pixel coordinates.

std::pair< int, int >	CanvasToRoom (int canvas_x, int canvas_y) const
	Convert canvas pixel coordinates to room tile coordinates.

bool	IsWithinBounds (int canvas_x, int canvas_y) const
	Check if coordinates are within room bounds.

ImVec2	GetCanvasZeroPoint () const
	Get canvas zero point (for screen coordinate conversion)

float	GetCanvasScale () const
	Get canvas global scale.

bool	HasValidContext () const
	Check if context is valid.

zelda3::Room *	GetCurrentRoom () const
	Get current room (convenience method)

Protected Attributes inherited from yaze::editor::BaseEntityHandler
InteractionContext *	ctx_ = nullptr

Detailed Description

Handles pot item placement and interaction in the dungeon editor.

Pot items use a special position encoding and snap to an 8-pixel grid.

Definition at line 15 of file item_interaction_handler.h.

Member Function Documentation

◆ BeginPlacement()

void yaze::editor::ItemInteractionHandler::BeginPlacement ( )

overridevirtual

Begin placement mode.

Called when user selects an entity to place from the palette. Override to initialize placement state.

Implements yaze::editor::BaseEntityHandler.

Definition at line 16 of file item_interaction_handler.cc.

References ClearSelection(), and item_placement_mode_.

Referenced by yaze::editor::InteractionCoordinator::SetMode().

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◆ CancelPlacement()

void yaze::editor::ItemInteractionHandler::CancelPlacement ( )

inlineoverridevirtual

Cancel current placement.

Called when user presses Escape or switches modes. Override to clean up placement state.

Implements yaze::editor::BaseEntityHandler.

Definition at line 22 of file item_interaction_handler.h.

References item_placement_mode_.

Referenced by yaze::editor::InteractionCoordinator::CancelCurrentMode().

◆ IsPlacementActive()

bool yaze::editor::ItemInteractionHandler::IsPlacementActive ( ) const

inlineoverridevirtual

Check if placement mode is active.

Implements yaze::editor::BaseEntityHandler.

Definition at line 23 of file item_interaction_handler.h.

References item_placement_mode_.

Referenced by yaze::editor::InteractionCoordinator::DrawGhostPreviews(), yaze::editor::InteractionCoordinator::HandleClick(), and yaze::editor::InteractionCoordinator::IsPlacementActive().

◆ HandleClick()

bool yaze::editor::ItemInteractionHandler::HandleClick	(	int	canvas_x,
		int	canvas_y )

overridevirtual

Handle mouse click at canvas position.

Parameters

canvas_x	Unscaled X position relative to canvas origin
canvas_y	Unscaled Y position relative to canvas origin

Returns: true if click was handled by this handler

Implements yaze::editor::BaseEntityHandler.

Definition at line 21 of file item_interaction_handler.cc.

References ClearSelection(), drag_current_pos_, drag_start_pos_, GetEntityAtPosition(), yaze::editor::BaseEntityHandler::HasValidContext(), is_dragging_, item_placement_mode_, PlaceItemAtPosition(), and SelectItem().

Referenced by yaze::editor::InteractionCoordinator::HandleClick(), and yaze::editor::InteractionCoordinator::TrySelectEntityAtCursor().

◆ HandleDrag()

void yaze::editor::ItemInteractionHandler::HandleDrag	(	ImVec2	current_pos,
		ImVec2	delta )

overridevirtual

Handle mouse drag.

Parameters

current_pos	Current mouse position (screen coords)
delta	Mouse movement since last frame

Implements yaze::editor::BaseEntityHandler.

Definition at line 44 of file item_interaction_handler.cc.

References drag_current_pos_, is_dragging_, and selected_item_index_.

Referenced by yaze::editor::InteractionCoordinator::HandleDrag().

◆ HandleRelease()

void yaze::editor::ItemInteractionHandler::HandleRelease ( )

overridevirtual

Handle mouse release.

Called when left mouse button is released after a drag.

Implements yaze::editor::BaseEntityHandler.

Definition at line 49 of file item_interaction_handler.cc.

References yaze::editor::BaseEntityHandler::ctx_, drag_current_pos_, yaze::editor::BaseEntityHandler::GetCanvasScale(), yaze::editor::BaseEntityHandler::GetCurrentRoom(), is_dragging_, yaze::editor::InteractionContext::NotifyEntityChanged(), yaze::editor::InteractionContext::NotifyMutation(), and selected_item_index_.

Referenced by yaze::editor::InteractionCoordinator::HandleRelease().

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◆ DrawGhostPreview()

void yaze::editor::ItemInteractionHandler::DrawGhostPreview ( )

overridevirtual

Draw ghost preview during placement.

Called every frame when placement mode is active. Shows preview of entity at cursor position.

Implements yaze::editor::BaseEntityHandler.

Definition at line 89 of file item_interaction_handler.cc.

References yaze::editor::InteractionContext::canvas, yaze::editor::BaseEntityHandler::ctx_, yaze::editor::BaseEntityHandler::GetCanvasScale(), yaze::editor::BaseEntityHandler::HasValidContext(), item_placement_mode_, yaze::editor::dungeon_coords::kTileSize, and preview_item_id_.

Referenced by yaze::editor::InteractionCoordinator::DrawGhostPreviews().

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◆ DrawSelectionHighlight()

void yaze::editor::ItemInteractionHandler::DrawSelectionHighlight ( )

overridevirtual

Draw selection highlight for selected entities.

Called every frame to show selection state.

Implements yaze::editor::BaseEntityHandler.

Definition at line 128 of file item_interaction_handler.cc.

References drag_current_pos_, yaze::editor::BaseEntityHandler::GetCanvasScale(), yaze::editor::BaseEntityHandler::GetCanvasZeroPoint(), yaze::editor::BaseEntityHandler::GetCurrentRoom(), yaze::editor::BaseEntityHandler::HasValidContext(), is_dragging_, yaze::editor::dungeon_coords::kTileSize, and selected_item_index_.

Referenced by yaze::editor::InteractionCoordinator::DrawSelectionHighlights().

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◆ GetEntityAtPosition()

std::optional< size_t > yaze::editor::ItemInteractionHandler::GetEntityAtPosition	(	int	canvas_x,
		int	canvas_y ) const

overridevirtual

Get entity at canvas position.

Parameters

canvas_x	Unscaled X position relative to canvas origin
canvas_y	Unscaled Y position relative to canvas origin

Returns: Entity index if found, nullopt otherwise

Implements yaze::editor::BaseEntityHandler.

Definition at line 177 of file item_interaction_handler.cc.

References yaze::editor::BaseEntityHandler::ctx_, yaze::editor::BaseEntityHandler::GetCanvasScale(), yaze::editor::InteractionContext::GetCurrentRoomConst(), and yaze::editor::BaseEntityHandler::HasValidContext().

Referenced by HandleClick().

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◆ SetItemId()

void yaze::editor::ItemInteractionHandler::SetItemId ( uint8_t id )

inline

Set item ID for placement.

Definition at line 42 of file item_interaction_handler.h.

References preview_item_id_.

◆ GetItemId()

uint8_t yaze::editor::ItemInteractionHandler::GetItemId ( ) const

inline

Get current item ID for placement.

Definition at line 47 of file item_interaction_handler.h.

References preview_item_id_.

◆ SelectItem()

void yaze::editor::ItemInteractionHandler::SelectItem ( size_t index )

Select item at index.

Definition at line 207 of file item_interaction_handler.cc.

References yaze::editor::BaseEntityHandler::ctx_, yaze::editor::InteractionContext::NotifyEntityChanged(), and selected_item_index_.

Referenced by HandleClick().

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◆ ClearSelection()

void yaze::editor::ItemInteractionHandler::ClearSelection ( )

Clear item selection.

Definition at line 212 of file item_interaction_handler.cc.

References is_dragging_, and selected_item_index_.

Referenced by BeginPlacement(), yaze::editor::InteractionCoordinator::ClearAllEntitySelections(), DeleteSelected(), and HandleClick().

◆ HasSelection()

bool yaze::editor::ItemInteractionHandler::HasSelection ( ) const

inline

Check if an item is selected.

Definition at line 62 of file item_interaction_handler.h.

References selected_item_index_.

Referenced by yaze::editor::InteractionCoordinator::DeleteSelectedEntity(), yaze::editor::InteractionCoordinator::GetSelectedEntityType(), yaze::editor::InteractionCoordinator::HandleDrag(), and yaze::editor::InteractionCoordinator::HasEntitySelection().

◆ GetSelectedIndex()

std::optional< size_t > yaze::editor::ItemInteractionHandler::GetSelectedIndex ( ) const

inline

Get selected item index.

Definition at line 67 of file item_interaction_handler.h.

References selected_item_index_.

◆ DeleteSelected()

void yaze::editor::ItemInteractionHandler::DeleteSelected ( )

Delete selected item.

Definition at line 217 of file item_interaction_handler.cc.

References ClearSelection(), yaze::editor::BaseEntityHandler::ctx_, yaze::editor::BaseEntityHandler::GetCurrentRoom(), yaze::editor::BaseEntityHandler::HasValidContext(), yaze::editor::InteractionContext::NotifyInvalidateCache(), yaze::editor::InteractionContext::NotifyMutation(), and selected_item_index_.

Referenced by yaze::editor::InteractionCoordinator::DeleteSelectedEntity().

◆ PlaceItemAtPosition()

void yaze::editor::ItemInteractionHandler::PlaceItemAtPosition	(	int	canvas_x,
		int	canvas_y )

private

Place item at position.

Definition at line 233 of file item_interaction_handler.cc.

References yaze::editor::BaseEntityHandler::ctx_, yaze::editor::BaseEntityHandler::GetCanvasScale(), yaze::editor::BaseEntityHandler::GetCurrentRoom(), yaze::editor::BaseEntityHandler::HasValidContext(), yaze::zelda3::PotItem::item, yaze::editor::InteractionContext::NotifyInvalidateCache(), yaze::editor::InteractionContext::NotifyMutation(), yaze::zelda3::PotItem::position, and preview_item_id_.

Referenced by HandleClick().

Member Data Documentation

◆ item_placement_mode_

bool yaze::editor::ItemInteractionHandler::item_placement_mode_ = false

private

Definition at line 76 of file item_interaction_handler.h.

Referenced by BeginPlacement(), CancelPlacement(), DrawGhostPreview(), HandleClick(), and IsPlacementActive().

◆ preview_item_id_

uint8_t yaze::editor::ItemInteractionHandler::preview_item_id_ = 0

private

Definition at line 77 of file item_interaction_handler.h.

Referenced by DrawGhostPreview(), GetItemId(), PlaceItemAtPosition(), and SetItemId().

◆ selected_item_index_

std::optional<size_t> yaze::editor::ItemInteractionHandler::selected_item_index_

private

Definition at line 80 of file item_interaction_handler.h.

Referenced by ClearSelection(), DeleteSelected(), DrawSelectionHighlight(), GetSelectedIndex(), HandleDrag(), HandleRelease(), HasSelection(), and SelectItem().

◆ is_dragging_

bool yaze::editor::ItemInteractionHandler::is_dragging_ = false

private

Definition at line 81 of file item_interaction_handler.h.

Referenced by ClearSelection(), DrawSelectionHighlight(), HandleClick(), HandleDrag(), and HandleRelease().

◆ drag_start_pos_

ImVec2 yaze::editor::ItemInteractionHandler::drag_start_pos_

private

Definition at line 82 of file item_interaction_handler.h.

Referenced by HandleClick().

◆ drag_current_pos_

ImVec2 yaze::editor::ItemInteractionHandler::drag_current_pos_

private

Definition at line 83 of file item_interaction_handler.h.

Referenced by DrawSelectionHighlight(), HandleClick(), HandleDrag(), and HandleRelease().

The documentation for this class was generated from the following files:

src/app/editor/dungeon/interaction/item_interaction_handler.h
src/app/editor/dungeon/interaction/item_interaction_handler.cc

	yaze 0.3.2 Link to the Past ROM Editor

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ BeginPlacement()

◆ CancelPlacement()

◆ IsPlacementActive()

◆ HandleClick()

◆ HandleDrag()

◆ HandleRelease()

◆ DrawGhostPreview()

◆ DrawSelectionHighlight()

◆ GetEntityAtPosition()

◆ SetItemId()

◆ GetItemId()

◆ SelectItem()

◆ ClearSelection()

◆ HasSelection()

◆ GetSelectedIndex()

◆ DeleteSelected()

◆ PlaceItemAtPosition()

Member Data Documentation

◆ item_placement_mode_

◆ preview_item_id_

◆ selected_item_index_

◆ is_dragging_

◆ drag_start_pos_

◆ drag_current_pos_