Grid iron.

[naja.git] / naja / scenes / introduction.py

diff --git a/naja/scenes/introduction.py b/naja/scenes/introduction.py
index ddaab48d284096320093ae20983f94705d509658..913e2dcf5468c9f9b08ce68ca3d3a1d4a67caed0 100644 (file)
--- a/naja/scenes/introduction.py
+++ b/naja/scenes/introduction.py
@@ -5,7 +5,6 @@ Load and save scenes.
 import pygame.locals as pgl
 import pygame
 
-from naja import constants
 from naja.constants import KEYS, SCREEN, PALETTE
 from naja.events import SceneChangeEvent, LoadGameEvent
 from naja.gamestate import GameState
@@ -19,10 +18,13 @@ from naja.resources import resources
 from naja.scenes.dummygame import DummyGameScene
 from naja.widgets.image_box import PreRenderedImageBox
 
+
 class IntroductionScene(Scene):
     def __init__(self, state):
         super(IntroductionScene, self).__init__(state)
 
+        self.grid_surface = None
+
         background = ImageBox(
             (0, 0), "screens/splash.png")
         self.add(background)
@@ -77,24 +79,46 @@ class IntroductionScene(Scene):
         self.add(PreRenderedImageBox((0, 0), game_surface))
         return game_surface
 
+    def get_grid_surface(self, game_surface):
+        grid_size = 4
+        if self.grid_surface is None:
+            rect = game_surface.get_rect()
+            size = (rect.width, rect.height)
+            self.grid_surface = pygame.surface.Surface(
+                size, flags=pgl.SRCALPHA)
+            for i in range(0, rect.width, grid_size):
+                for j in range(0, rect.height, grid_size):
+                    if (i + j) % (grid_size * 2) == 0:
+                        continue
+                    pygame.draw.rect(self.grid_surface, PALETTE.GREY,
+                                     (i, j, grid_size, grid_size))
+        return self.grid_surface
+
+    def grid_out(self, game_surface, rect):
+        orig = game_surface.copy()
+        game_surface.blit(self.get_grid_surface(game_surface), (0, 0))
+        game_surface.blit(orig, rect, rect)
+        pygame.draw.rect(game_surface, PALETTE.GREEN, rect, 8)
+
     def introduction_to_screen_1(self, event):
         game_surface = self.make_game_surface()
         self.intro = 1
 
         self.add(TextBoxWidget(
             (24, 72), '\n'.join([
-                "These are your robot's status bits. On the left we have "
-                "the Most Signiticant Bit (MSB, currently set), then Red, "
-                "Green (set) and Blue (set) key bits, and finally the four "
-                "bits which control movement options, of which only left is "
-                "set. You can only move in directions which are set. \n"
+                "These are your robot's status bits. On the left we have"
+                " the Most Signiticant Bit (MSB, currently set), then the"
+                " Red (unset), Green (set) and Blue (set) key bits, and"
+                " finally the four bits which control movement options, of"
+                " which only left is set. You can only move in directions"
+                " which are set.",
                 "Enter to continue.",
             ]), fontsize=32,
             colour=PALETTE.GREEN, padding=12, border=8,
             bg_colour=PALETTE.BLACK, border_colour=PALETTE.GREEN,
             box_width=400, view_port=(500, 800)))
 
-        pygame.draw.rect(game_surface, PALETTE.GREEN, (0, 0, 480, 60), 8)
+        self.grid_out(game_surface, (0, 0, 480, 60))
 
     def introduction_to_screen_2(self, event):
         game_surface = self.make_game_surface()
@@ -113,7 +137,7 @@ class IntroductionScene(Scene):
             bg_colour=PALETTE.BLACK, border_colour=PALETTE.GREEN,
             box_width=400, view_port=(500, 800)))
 
-        pygame.draw.rect(game_surface, PALETTE.GREEN, (0, 540, 480, 60), 8)
+        self.grid_out(game_surface, (0, 540, 480, 60))
 
     def introduction_to_screen_3(self, event):
         game_surface = self.make_game_surface()
@@ -123,17 +147,17 @@ class IntroductionScene(Scene):
             (24, 132), '\n'.join([
                 "This text box describes the current game mode. The game is "
                 "divided into movements and actions, and each mode has "
-                "different options, shown here.\n"
+                "different options, shown here.",
                 "During movement, you can examine the entire board, but you "
-                "can only move to hi-lighted tiles (including the one you are "
-                "on. Actions come next... \n"
+                "can only move to highlighted tiles (including the one you"
+                " are on). Actions come next ...",
                 "Enter to continue.",
             ]), fontsize=32,
             colour=PALETTE.GREEN, padding=12, border=8,
             bg_colour=PALETTE.BLACK, border_colour=PALETTE.GREEN,
             box_width=400, view_port=(500, 800)))
 
-        pygame.draw.rect(game_surface, PALETTE.GREEN, (488, 416, 304, 132), 8)
+        self.grid_out(game_surface, (488, 416, 304, 132))
 
     def introduction_to_screen_4(self, event):
         game_surface = self.make_game_surface()
@@ -145,17 +169,16 @@ class IntroductionScene(Scene):
                 "Some actions have requirements and are only selectable if "
                 "you have the correct bits set (unavailable actions are "
                 "greyed out). Actions usually change the bits set on "
-                "your robot. This is often not beneficial.\n"
+                "your robot. This is often not beneficial.",
                 "Some actions have additional effects if the MSB is "
-                "set.\n"
+                "set.",
                 "Enter to continue.",
             ]), fontsize=32,
             colour=PALETTE.GREEN, padding=12, border=8,
             bg_colour=PALETTE.BLACK, border_colour=PALETTE.GREEN,
             box_width=400, view_port=(500, 800)))
 
-        pygame.draw.rect(game_surface, PALETTE.GREEN, (488, 52, 304, 240), 8)
-
+        self.grid_out(game_surface, (488, 52, 304, 240))
 
     def handle_scene_event(self, ev):
         if ev.type == pgl.KEYDOWN and ev.key in KEYS.QUIT: