mirror of
https://github.com/infinitefusion/infinitefusion-e18.git
synced 2025-12-06 06:01:46 +00:00
76 lines
3.6 KiB
Ruby
76 lines
3.6 KiB
Ruby
#===============================================================================
|
|
#
|
|
#===============================================================================
|
|
class TilemapRenderer
|
|
module AutotileExpander
|
|
MAX_TEXTURE_SIZE = (Bitmap.max_size / 1024) * 1024
|
|
|
|
module_function
|
|
|
|
# This doesn't allow for cache sizes smaller than 768, but if that applies
|
|
# to you, you've got bigger problems.
|
|
def expand(bitmap)
|
|
return bitmap if bitmap.height == SOURCE_TILE_HEIGHT
|
|
expanded_format = (bitmap.height == SOURCE_TILE_HEIGHT * 6)
|
|
wrap = false
|
|
if MAX_TEXTURE_SIZE < TILES_PER_AUTOTILE * SOURCE_TILE_HEIGHT
|
|
wrap = true # Each autotile will occupy two columns instead of one
|
|
end
|
|
frames_count = [bitmap.width / (3 * SOURCE_TILE_WIDTH), 1].max
|
|
new_bitmap = Bitmap.new(frames_count * (wrap ? 2 : 1) * SOURCE_TILE_WIDTH,
|
|
TILES_PER_AUTOTILE * SOURCE_TILE_HEIGHT / (wrap ? 2 : 1))
|
|
rect = Rect.new(0, 0, SOURCE_TILE_WIDTH / 2, SOURCE_TILE_HEIGHT / 2)
|
|
TILES_PER_AUTOTILE.times do |id|
|
|
pattern = TileDrawingHelper::AUTOTILE_PATTERNS[id >> 3][id % TILESET_TILES_PER_ROW]
|
|
wrap_offset_x = (wrap && id >= TILES_PER_AUTOTILE / 2) ? SOURCE_TILE_WIDTH : 0
|
|
wrap_offset_y = (wrap && id >= TILES_PER_AUTOTILE / 2) ? (TILES_PER_AUTOTILE / 2) * SOURCE_TILE_HEIGHT : 0
|
|
frames_count.times do |frame|
|
|
if expanded_format && [1, 2, 4, 8].include?(id)
|
|
dest_x = frame * SOURCE_TILE_WIDTH * (wrap ? 2 : 1)
|
|
dest_x += wrap_offset_x
|
|
next if dest_x > MAX_TEXTURE_SIZE
|
|
dest_y = id * SOURCE_TILE_HEIGHT
|
|
dest_y -= wrap_offset_y
|
|
next if dest_y > MAX_TEXTURE_SIZE
|
|
case id
|
|
when 1 # Top left corner
|
|
new_bitmap.blt(dest_x, dest_y, bitmap,
|
|
Rect.new(frame * SOURCE_TILE_WIDTH * 3, SOURCE_TILE_HEIGHT * 4,
|
|
SOURCE_TILE_WIDTH, SOURCE_TILE_HEIGHT))
|
|
when 2 # Top right corner
|
|
new_bitmap.blt(dest_x, dest_y, bitmap,
|
|
Rect.new(SOURCE_TILE_WIDTH + (frame * SOURCE_TILE_WIDTH * 3), SOURCE_TILE_HEIGHT * 4,
|
|
SOURCE_TILE_WIDTH, SOURCE_TILE_HEIGHT))
|
|
when 4 # Bottom right corner
|
|
new_bitmap.blt(dest_x, dest_y, bitmap,
|
|
Rect.new(SOURCE_TILE_WIDTH + (frame * SOURCE_TILE_WIDTH * 3), SOURCE_TILE_HEIGHT * 5,
|
|
SOURCE_TILE_WIDTH, SOURCE_TILE_HEIGHT))
|
|
when 8 # Bottom left corner
|
|
new_bitmap.blt(dest_x, dest_y, bitmap,
|
|
Rect.new(frame * SOURCE_TILE_WIDTH * 3, SOURCE_TILE_HEIGHT * 5,
|
|
SOURCE_TILE_WIDTH, SOURCE_TILE_HEIGHT))
|
|
end
|
|
next
|
|
end
|
|
pattern.each_with_index do |src_chunk, i|
|
|
real_src_chunk = src_chunk - 1
|
|
dest_x = (i % 2) * SOURCE_TILE_WIDTH / 2
|
|
dest_x += frame * SOURCE_TILE_WIDTH * (wrap ? 2 : 1)
|
|
dest_x += wrap_offset_x
|
|
next if dest_x > MAX_TEXTURE_SIZE
|
|
dest_y = (i / 2) * SOURCE_TILE_HEIGHT / 2
|
|
dest_y += id * SOURCE_TILE_HEIGHT
|
|
dest_y -= wrap_offset_y
|
|
next if dest_y > MAX_TEXTURE_SIZE
|
|
rect.x = (real_src_chunk % 6) * SOURCE_TILE_WIDTH / 2
|
|
rect.x += SOURCE_TILE_WIDTH * 3 * frame
|
|
rect.y = (real_src_chunk / 6) * SOURCE_TILE_HEIGHT / 2
|
|
new_bitmap.blt(dest_x, dest_y, bitmap, rect)
|
|
end
|
|
end
|
|
end
|
|
return new_bitmap
|
|
end
|
|
end
|
|
end
|