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Add logic for checking if two tiles are equal with transformations applied to them

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There is currently no exposed way to apply transformations to tiles.
This commit is contained in:
Emmanouil Papadeas 2024-11-26 03:58:47 +02:00
parent 35f78cf02c
commit 8be3a1a54f
1 changed files with 27 additions and 7 deletions
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34
src/Classes/Cels/CelTileMap.gd
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@ -29,6 +29,8 @@ class Tile:
var index := 0
var flip_h := false
var flip_v := false
## If [code]true[/code], the tile is rotated 90 degrees counter-clockwise,
## and then flipped vertically.
var transpose := false
func serialize() -> Dictionary:
@ -81,7 +83,7 @@ func update_tileset(undo: bool) -> void:
tileset.add_tile(image_portion, self, tile_editing_mode)
indices[i].index = tileset.tiles.size() - 1
continue
if image_portion.get_data() != current_tile.image.get_data():
if not tiles_equal(i, image_portion, current_tile.image):
tileset.replace_tile_at(image_portion, index, self)
elif tile_editing_mode == TileSetPanel.TileEditingMode.AUTO:
handle_auto_editing_mode(i, image_portion)
@ -91,7 +93,7 @@ func update_tileset(undo: bool) -> void:
var found_tile := false
for j in range(1, tileset.tiles.size()):
var tile := tileset.tiles[j]
if image_portion.get_data() == tile.image.get_data():
if tiles_equal(i, image_portion, tile.image):
indices[i].index = j
found_tile = true
break
@ -166,7 +168,7 @@ func handle_auto_editing_mode(i: int, image_portion: Image) -> void:
tileset.add_tile(image_portion, self, TileSetPanel.TileEditingMode.AUTO)
indices[i].index = tileset.tiles.size() - 1
else: # If the portion is already mapped.
if image_portion.get_data() == current_tile.image.get_data():
if tiles_equal(i, image_portion, current_tile.image):
# Case 3: The portion is mapped and it did not change.
# Do nothing and move on to the next portion.
return
@ -215,7 +217,7 @@ func update_cel_portion(tile_position: int) -> void:
var image_portion := image.get_region(rect)
var index := indices[tile_position].index
var current_tile := tileset.tiles[index]
if image_portion.get_data() != current_tile.image.get_data():
if not tiles_equal(tile_position, image_portion, current_tile.image):
var tile_size := current_tile.image.get_size()
image.blit_rect(current_tile.image, Rect2i(Vector2i.ZERO, tile_size), coords)
@ -243,6 +245,24 @@ func get_tile_position(coords: Vector2i) -> int:
return x + y
func tiles_equal(portion_index: int, image_portion: Image, tile_image: Image) -> bool:
var tile_data := indices[portion_index]
var final_image_portion := Image.new()
final_image_portion.copy_from(image_portion)
if tile_data.flip_h:
final_image_portion.flip_x()
if tile_data.flip_v:
final_image_portion.flip_y()
if tile_data.transpose:
var tmp_image := Image.new()
tmp_image.copy_from(final_image_portion)
tmp_image.rotate_90(COUNTERCLOCKWISE)
final_image_portion.blit_rect(
tmp_image, Rect2i(Vector2i.ZERO, tmp_image.get_size()), Vector2i.ZERO
)
return final_image_portion.get_data() == tile_image.get_data()
func re_index_all_tiles() -> void:
for i in indices.size():
var coords := get_tile_coords(i)
@ -253,7 +273,7 @@ func re_index_all_tiles() -> void:
continue
for j in range(1, tileset.tiles.size()):
var tile := tileset.tiles[j]
if image_portion.get_data() == tile.image.get_data():
if tiles_equal(i, image_portion, tile.image):
indices[i].index = j
break
@ -311,11 +331,11 @@ func update_texture(undo := false) -> void:
if i == editing_portion:
editing_images[index] = [i, image_portion]
var editing_image := editing_images[index][1] as Image
if editing_image.get_data() != image_portion.get_data():
if not tiles_equal(i, image_portion, editing_image):
var tile_size := image_portion.get_size()
image.blit_rect(editing_image, Rect2i(Vector2i.ZERO, tile_size), coords)
else:
if image_portion.get_data() != current_tile.image.get_data():
if not tiles_equal(i, image_portion, current_tile.image):
editing_images[index] = [i, image_portion]
super.update_texture(undo)