path: root/src/tileset.py

from common import *
import struct
import cPickle



class KPTileObject(object):
	def __init__(self, tilelist, height, width, wrapmode, icon):

		# A list of lists of tile indices
		self.tiles = tilelist

		# Dimensions
		self.height = height
		self.width = width

		# QPixmap of Rendered 1:1 Object
		self.icon = icon

		# Wrapmode
		self.wrap = wrapmode

				# --- Wrapmodes ---
				# 'Repeat'
				# 'Stretch Center'
				# 'Stretch X'
				# 'Stretch Y'
				# 'Repeat Bottom'
				# 'Repeat Top'
				# 'Repeat Left'
				# 'Repeat Right'
				# 'Upward slope' (LL to UR)
				# 'Downward slope' (UL to LR)

		self.itemsize = QtCore.QSize(self.width * 24 + 4, self.height * 24 + 4)



	def render(self, size):
		'''Returns a tilemap of the object at a certain size as a list of lists.'''

		if self.wrap > 7:
			self._renderSlope(size)


		# size is a tuple of (width, height)

		buf = []

		beforeRepeat = []
		inRepeat = self.tiles.copy()
		afterRepeat = []

		if (self.wrap == 1) or (self.wrap == 3) or (self.wrap == 5):
			beforeRepeat = inRepeat.pop(0)

		if (self.wrap == 1) or (self.wrap == 3) or (self.wrap == 4):
			afterRepeat = inRepeat.pop()	

		bC, iC, aC = len(beforeRepeat), len(inRepeat), len(afterRepeat)

		if iC == 0:
			for y in xrange(size[1]):
				buf.append(self._renderRow(beforeRepeat[y % bC], size[0]))
		else:
			middleUntil = size[1] - aC

			for y in xrange(size[1]):
				if y < bC:
					buf.append(self._renderRow(beforeRepeat[y], size[0]))
				elif y < middleUntil:
					buf.append(self._renderRow(inRepeat[(y - bC) % iC], size[0]))
				else:
					buf.append(self._renderRow(afterRepeat[y - bC - iC], size[0]))

		return buf

	def _renderRow(self, row, width):
		buf = [-1 for i in xrange(width)]

		beforeRepeat = []
		inRepeat = row
		afterRepeat = []

		if (self.wrap == 1) or (self.wrap == 2) or (self.wrap == 6):
			beforeRepeat = inRepeat.pop(0)

		if (self.wrap == 1) or (self.wrap == 2) or (self.wrap == 7):
			afterRepeat = inRepeat.pop()	

		bC, iC, aC = len(beforeRepeat), len(inRepeat), len(afterRepeat)

		if iC == 0:
			for x in xrange(width):
				buf[x] = beforeRepeat[x % bC]
		else:
			middleUntil = width - aC

			for x in xrange(width):
				if x < bC:
					buf[x] = beforeRepeat[y]
				elif x < middleUntil:
					buf[x] = inRepeat[(y - bC) % iC]
				else:
					buf[x] = afterRepeat[y - bC - iC]

		return buf


	def _renderSlope(self, size):
		# Slopes are annoying

		buf = []
		w = xrange(size[0])
		h = xrange(size[1])

		# Koopuzzle really only does slopes that are two blocks tall.
		# Suck it, multi height slopes.

		mainblock = self.tiles[0]
		subblock = self.tiles[1]

		if self.wrap == 8:		# Upward (LL to UR)

			# List Comprehension to make a palette
			buf = [[-1 for x in w] for x in h]

			offset = 0

			# Paint the mainblock
			for row in h:
				for tile in w:
					if (tile == ((size[1] - row - 1) * self.width) + offset):
						buf[size[1] - row - 2][tile] = mainblock[offset]
					offset += 1
				offset = 0

			# Paint the subblock
			for row in h:
				for tile in w:
					if (tile == ((size[1] - row)  * self.width) + offset):
						buf[size[1] - row - 1][tile] = mainblock[offset]
					offset += 1
				offset = 0


		elif self.wrap == 9:	# Downward (UL to LR)

			# List Comprehension to make a palette
			buf = [[-1 for x in w] for x in h]

			offset = 0

			# Paint the mainblock
			for row in h:
				for tile in w:
					if (tile == (row * self.width) + offset):
						buf[row][tile] = mainblock[offset]
					offset += 1
				offset = 0

			# Paint the subblock
			for row in h:
				for tile in w:
					if (tile == ((row - 1) * self.width) + offset):
						buf[row][tile] = mainblock[offset]
					offset += 1
				offset = 0






class KPGroupModel(QtCore.QAbstractListModel):
	"""Model containing all the grouped objects in a tileset"""
	
	def __init__(self, groupItem):
		self.container = groupItem

		QtCore.QAbstractListModel.__init__(self)
		
	
	def rowCount(self, parent=None):
		return self.container.objectCount()
	

	def data(self, index, role=QtCore.Qt.DisplayRole):
		# Should return the contents of a row when asked for the index 
		
		if not index.isValid(): return None
		n = index.row()
		
		if n < 0: return None
		if n >= self.container.objectCount(): return None
		
		item = self.container.getItem(n)

		if role == QtCore.Qt.DecorationRole:
			if isinstance(item, KPTileObject):
				return item.icon
		
		if role == QtCore.Qt.BackgroundRole:
			return QtGui.qApp.palette().base()
		
		if role == QtCore.Qt.UserRole:
			if isinstance(item, KPTileObject):
				return item.itemsize
				
		if role == QtCore.Qt.DisplayRole:
			if isinstance(item, KPGroupItem):
				return item.name

		if role == QtCore.Qt.TextAlignmentRole:
			if isinstance(item, KPGroupItem):
				return item.alignment


		return None



class KPGroupItem(object):
	"""Hierarchal object for making a 2D hierarchy recursively using classes"""
	
	def __init__(self, name):

		self.objects = []
		self.groups = []
		self.startIndex = 0
		self.endIndex = 0

		self.name = name
		self.alignment = QtCore.Qt.AlignCenter
	

	def objectCount(self):
		''' Retrieves the total number of items in this group and all it's children '''

		objCount = 0

		objCount += len(self.objects)
		objCount += len(self.groups)
		for group in self.groups:
			objCount += group.objectCount()

		return objCount
	

	def getItem(self, index):
		''' Retrieves an item of a specific index. The index is already checked for validity '''

		if index == self.startIndex:
			return self

		if (index < self.startIndex + len(self.objects)):
			return self.objects[index - self.startIndex - 1]

		else:

			for group in groups:

				if (group.startIndex < index) and (index < group.endIndex):
					return group.getItem(index)





class KPTileset(object):
	def __init__(self, imageBuffer, objectBuffer, objectMetadata, groupBuffer):
		'''A Koopatlas Tileset class. To initialize, pass it image data,
		object data, and group data as read from a Koopatlas tileset file.

		tiles -> has a list of all 512 tiles.
		objects -> has a list of objects in the tileset
		groupModel -> has a model containing groups with items for all objects
					  and groups in the tileset.


		Methods of Note:

			getTile(TileIndex)
				# Returns a tile image as a QPixmap
 
			getObject(ObjectIndex)
				# Returns a KPTileObject

			getObjectIcon(ObjectIndex)
			getObjectIcon(KPTileObject)
				# Returns a QPixmap for the Object

			getObjectIcon(ObjectIndex, (width, height))
			getObjectIcon(KPTileObject, (width, height))
				# Returns a render map for the Object at the given size

			overrideTile(Tile Index, QPixmap)
				# Takes a 24x24 QPixmap and a tile index

					  '''


		self.tiles = []
		self.objects = []
		self.groupItem = KPGroupItem("All Groups")

		self.processImage(imageBuffer)
		self.processObjects(objectBuffer, objectMetadata)
		self.processGroup(groupBuffer)

		self.groupModel = KPGroupModel(self.groupItem)


	def processImage(self, imageBuffer):
		'''Takes an imageBuffer from a Koopatlas Tileset and converts it into 24x24
		tiles, which get put into KPTileset.tiles.'''

		dest = self.RGB4A3Decode(imageBuffer)
		
		self.tileImage = QtGui.QPixmap.fromImage(dest)
		
		# Makes us some nice Tiles!
		Xoffset = 4
		Yoffset = 4
		for i in range(512):
			self.tiles.append(self.tileImage.copy(Xoffset,Yoffset,24,24))
			Xoffset += 32
			if Xoffset >= 1024:
				Xoffset = 4
				Yoffset += 32



	@staticmethod
	def RGB4A3Decode(tex):
		dest = QtGui.QImage(1024,512,QtGui.QImage.Format_ARGB32)
		dest.fill(QtCore.Qt.transparent)

		i = 0
		for ytile in xrange(0, 512, 4):
			for xtile in xrange(0, 1024, 4):
				for ypixel in xrange(ytile, ytile + 4):
					for xpixel in xrange(xtile, xtile + 4):
						
						if(xpixel >= 1024 or ypixel >= 512):
							continue

						newpixel = struct.unpack_from('>H', tex, i)[0]
						# newpixel = (int(tex[i]) << 8) | int(tex[i+1])
						

						if(newpixel >= 0x8000): # Check if it's RGB555
							red = ((newpixel >> 10) & 0x1F) * 255 / 0x1F
							green = ((newpixel >> 5) & 0x1F) * 255 / 0x1F
							blue = (newpixel & 0x1F) * 255 / 0x1F
							alpha = 0xFF

						else: # If not, it's RGB4A3
							alpha = ((newpixel & 0x7000) >> 12) * 255 / 0x7
							blue = ((newpixel & 0xF00) >> 8) * 255 / 0xF
							green = ((newpixel & 0xF0) >> 4) * 255 / 0xF
							red = (newpixel & 0xF) * 255 / 0xF

						argb = (blue) | (green << 8) | (red << 16) | (alpha << 24)
						dest.setPixel(xpixel, ypixel, argb)
						i += 2
		return dest


	def processObjects(self, objstrings, metadata):
		'''Takes the object files from a Koopatlas Tileset and converts it into
		KPTileObject classes, which get put into KPTileset.objects.'''

			# Load Objects
			
		meta = []
		for i in xrange(len(metadata)/5):
			meta.append(struct.unpack_from('>H3B', metadata, i * 5))                                    
			
		tilelist = []
		rowlist = []

		for entry in meta:  
			offset = entry[0]
			row = 0
			
			tex = QtGui.QPixmap(entry[2] * 24, entry[1] * 24)
			tex.fill(QtCore.Qt.transparent)
			painter = QtGui.QPainter(tex)
					
								
			for tilesA in xrange(entry[2]):
				for tilesB in xrange(entry[1]):
					untile = struct.unpack_from('>h', objstrings, offset)[0]

					if untile != -1:
						painter.drawPixmap(tilesA*24, tilesB*24, self.tiles[untile])

					rowlist.append(untile)
					offset += 2

				tilelist.append(rowlist)
				rowlist = []

			painter.end()
		   

			self.objects.append(KPTileObject(tilelist, entry[2], entry[1], entry[3], tex))

			tilelist = []




	def processGroup(self, groupBuffer):

		grovyle = cPickle.loads(groupBuffer)
		self.makeTree(grovyle, self.groupItem)




	def makeTree(self, grovyle, treecko):
			
		indexNum = treecko.startIndex

		for razorLeaf in grovyle:

			if (type(razorLeaf) is str) and (razorLeaf[:6] == "Object"):

				objnum = int(razorLeaf[7:])
				obj = self.objects[objnum]

				treecko.objects.append(obj)

			else:

				a = KPGroupItem(razorLeaf[0])
				treecko.groups.append(a)

				makeTree(razorLeaf[1], a)

		treecko.endIndex = treecko.startIndex + treecko.objectCount()



	def getTile(self, index):
		'''Takes a tile index and returns a tile image as a QPixmap, or -1 if failed.'''

		if index > 511:
			return false
		
		if index < 0:
			return false

		return self.tiles[index]


	def getObject(self, index):
		'''Takes an object index and returns a KPTileObject, or false if failed.'''
		
		if index < 0:
			return false

		return self.tiles[index]


	def getObjectIcon(self, index):
		'''Takes an object index or a KPTileObject and returns a QPixmap for the 
		object, or false if failed.'''
		
		if isinstance(index, KPTileObject):
			return index.icon

		if isinstance(index, int):
			try:
				return self.objects[index].icon
			except:
				return false

		return false


	def getObjectRender(self, index, size):
		'''Takes an object index or a KPTileObject and returns a render map for the 
		object, or false if failed.'''
		
		if isinstance(index, KPTileObject):
			return index.render(size)

		if isinstance(index, int):
			try:
				return self.objects[index].render(size)
			except:
				return false

		return false


	def getModel(self):
		'''Returns the Group Model'''
		
		return self.groupModel



	def overrideTile(self, index, pixmap):
		'''Takes a 24x24 QPixmap and a tile index, and returns true if it succeeds.'''

		if index > 511:
			return false
		
		if index < 0:
			return false

		if not isinstance(pixmap, QtGui.QPixmap):
			return false

		if (QtGui.QPixmap.height() != 24) or (QtGui.QPixmap.width() != 24):
			return false


		self.tiles[index] = pixmap

		return true