import os.path
import sys
import cPickle
+import math
import utility
def display_menu (screen, tileset, tilerow, tilecol):
utility.put_text (screen, 490, 10, 10, (255,255,0), "p to pick tile")
utility.put_text (screen, 490, 50, 10, (255,255,0), "w to wall (solid)")
- utility.put_text (screen, 490, 90, 10, (255,255,0), "<space> to place")
- utility.put_text (screen, 490, 130, 10,(255,255,0), "Arrows to move around")
- utility.put_text (screen, 490, 170, 10, (255,255,0), "s to Save level")
- utility.put_text (screen, 490, 210, 10, (255,255,0), "q to Quit editor")
+ utility.put_text (screen, 490, 90, 10, (255,255,0), "<Space> or <Enter>")
+ utility.put_text (screen, 490, 110, 10, (255,255,0), "to place")
+ utility.put_text (screen, 490, 150, 10,(255,255,0), "Arrows to move around")
+ utility.put_text (screen, 490, 190, 10, (255,255,0), "s to Save level")
+ utility.put_text (screen, 490, 230, 10, (255,255,0), "q to Quit editor")
# currently selected tile
- utility.put_text (screen, 490, 250, 10, (255,255,255), "Tile selected")
+ utility.put_text (screen, 490, 270, 10, (255,255,255), "Tile selected")
screen.blit (tileset, (490, 290), (tilecol*48, tilerow*48, 48, 48))
# draw the tile cursor
leveldata[row][col][1] = tilecol
# picking a tile from the tileset
-def pick_tile (screen, tileset):
- selrow, selcol = 0, 0
+def pick_tile (screen, tileset, selrow, selcol):
# total number of rows and columns
totalrows = tileset.get_height () / 48
totalcols = tileset.get_width () / 48
- # implement scrolling by 480x480
- # first get the number of pages to span across. If the width is
- # exactly fitting in the page use totalwidth/480 else totalwidth/480+1
- # (integer divison)
- if tileset.get_width () % 480 == 0:
- totalpages_cols = tileset.get_width () / 480
- else:
- totalpages_cols = tileset.get_width () / 480 + 1
-
- if tileset.get_height () % 480 == 0:
- totalpages_rows = tileset.get_height () / 480
- else:
- totalpages_rows = tileset.get_height () / 480 + 1
+ # implement scrolling within the tileset image in a 480x480 viewport
# set the current page
- curpage_cols = 0
- curpage_rows = 0
+ curpage_cols = selrow / 10
+ curpage_rows = selcol / 10
# cursor row and column
- cursor_row = 0
- cursor_col = 0
+ cursor_row = selrow % 10
+ cursor_col = selcol % 10
- # the code for scrolling through the tileset is quite complicated here are the steps
- # first we determine the total number of pages (number of row pages and col pages
- # then when scrolling we check for two things:
- # first horizontal scrolling:
+ # the code for scrolling through the tileset is slightly complicated here are the steps
# logic goes like this
+ # e.g. horizontal movement
# left arrow key movement:
- # is the cursor col < 0 ? if so, is it the first page? if so, then set the
- # cursor col to the last col of the last page. This unfortunately is not so easy
- # because it need not be 10. So we determine the last col as follows:
- # total width of the tileset image modulo 480 = this gives us a multiple of 48
- # since we are using 48x48 tiles and the tileset file size is a multiple of 48.
- # then we divide that value by 48 which gives us a number between 0 and 9.
- # this is the last col. If it is not the first page, we simply set the cursor
- # column to 9 and reduce the page by 1.
- # right arrow movement:
- # simply if it is the last col and last page we simply reset the
- # page to 0 and the cursor col to 0. Otherwise page is incremented by 1
- # and col is still set to 0. simple logic
-
- # vertical scrolling using the same logic
+ # 1. reduce the absolute column by 1
+ # 2. if absolute column < 0 then set absolute column to last column as total columns - 1
+ # 3. calculate the current page based on absolute column as absolute column / 10
+ # 10 being the number of tile columns per page
+ # 4. calculate the relative column on screen as (abolute column modulo 10) giving a
+ # division remainder between 0 and 9.
+
+ # same logic is used for all other movements
while 1:
screen.fill (pygame.Color (0, 0, 0))
screen.blit (tileset, (0, 0), (curpage_cols * 480, curpage_rows * 480, 480, 480))
draw_cursor (screen, cursor_row, cursor_col)
+ utility.put_text (screen, 490, 10,10, (255, 255, 0), "<Space> or <Enter>")
+ utility.put_text (screen, 490, 30,10, (255, 255, 0), "to select tile")
+ utility.put_text (screen, 490, 70,10, (255, 255, 0), "<Escape> to return")
+ utility.put_text (screen, 10, 490,10, (255, 255, 0), "Selected: %d row, %d col" % (selrow, selcol))
pygame.display.update ()
for event in pygame.event.get ():
if event.type == pygame.KEYDOWN:
if selrow < 0:
selrow = totalrows - 1
- # reduce the cursor row by 1
- cursor_row -= 1
- # if cursor row is < 0
- if cursor_row < 0:
- # reduce the page by 1
- curpage_rows -= 1
- if curpage_rows < 0:
- curpage_rows = totalpages_rows - 1
- if tileset.get_height () % 480 > 0 :
- # cursor row should be the last row - this is
- cursor_row = (tileset.get_height () % 480) / 48 - 1
- else:
- cursor_row = 9
- else:
- cursor_row = 9
+ # calculate the current page
+ curpage_rows = selrow / 10
+
+ # calculate the current cursor row
+ cursor_row = selrow % 10
elif event.key == pygame.K_DOWN:
# increase the selected row by 1
if selrow >= totalrows:
selrow = 0
- # increase the cursor row by 1
- cursor_row += 1
- # if cursor row is > 9
- if ((tileset.get_height () % 480 > 0 and curpage_rows >= totalpages_rows - 1 and cursor_row >= (tileset.get_height () % 480) / 48)
- or cursor_row >= 10):
- # increase the page by 1
- curpage_rows += 1
- # if the pages rows is >= totalpages_rows
- if curpage_rows >= totalpages_rows:
- curpage_rows = 0
- cursor_row = 0
- else:
- cursor_row = 0
+ # calculate the current row page
+ curpage_rows = selrow / 10
+ # calculate the cursor row
+ cursor_row = selrow % 10
elif event.key == pygame.K_LEFT:
# decrease the selected col by 1
selcol -= 1
if selcol < 0:
selcol = totalcols - 1
- # decrease the cursor col by 1
- cursor_col -= 1
- # if cursor col < 0
- if cursor_col < 0:
- curpage_cols -= 1
- if curpage_cols < 0:
- curpage_cols = totalpages_cols - 1
- if tileset.get_width () % 480 > 0:
- cursor_col = (tileset.get_width () % 480) / 48 - 1
- else:
- cursor_col = 9
- else:
- cursor_col = 9
+ # calculate the current column page
+ curpage_cols = selcol / 10
+
+ # calculate the cursor column
+ cursor_col = selcol % 10
elif event.key == pygame.K_RIGHT:
+ # increase the selected column by 1
selcol += 1
if selcol >= totalcols:
selcol = 0
- # increase the cursor col by 1
- cursor_col += 1
- # if cursor col > 9
- if ((tileset.get_width () % 480 > 0 and curpage_cols >= totalpages_cols - 1 and cursor_col >= (tileset.get_width () % 480) / 48)
- or cursor_col >= 10):
- curpage_cols += 1
- if curpage_cols >= totalpages_cols:
- curpage_cols = 0
- cursor_col = 0
- else:
- cursor_col = 0
+ # calculate the current column page
+ curpage_cols = selcol / 10
+ # calculate the cursor column
+ cursor_col = selcol % 10
# the actual level editor
def level_editor (fname):
# load the tileset
tileset = pygame.image.load (os.path.join ("background", "tileset.png"))
screen = pygame.display.set_mode ((720, 512))
- pygame.display.set_caption ("Level editor")
+ pygame.display.set_caption ("Level editor: %s" % fname)
currow, curcol = 0, 0
tilerow, tilecol = 0, 0
elif event.key == pygame.K_SPACE or event.key == pygame.K_RETURN:
put_tile (leveldata, currow, curcol, tilerow, tilecol)
elif event.key == ord ("p"):
- tile = pick_tile (screen, tileset)
+ tile = pick_tile (screen, tileset, tilerow, tilecol)
if tile is not None:
tilerow = tile[0]
tilecol = tile[1]
projects / butaba-adventures.git / commitdiff