From da33fc2f82a2919f9af7c7d1c8510c37435c5181 Mon Sep 17 00:00:00 2001
From: Viljami Ilola <+@hix.fi>
Date: Mon, 8 Apr 2024 18:47:32 +0300
Subject: background

---
 README.md                         | 30 ------------------------------
 README.txt                        | 30 ++++++++++++++++++++++++++++++
 pyproject.toml                    | 13 +++++--------
 src/sliceitoff/display/display.py | 14 +++++++++++++-
 4 files changed, 48 insertions(+), 39 deletions(-)
 delete mode 100644 README.md
 create mode 100644 README.txt

diff --git a/README.md b/README.md
deleted file mode 100644
index 917ae41..0000000
--- a/README.md
+++ /dev/null
@@ -1,30 +0,0 @@
--- Slice It Off! --
-
-Description:
-
-	Small game where goal is to beat hiscores. Score is gained by
-	slicing parts of playing area off. Faster you do it more score you
-	get. If you hit enemies while slicing you lose healt. There will be
-	also bonuses to boost the scores.
-
-Installing:
-	
-	One can use provided `./dev.sh` shell script to buid and install any
-	versionof game:
-	- `git clone https://git.hix.fi/scliceitoff.git`
-	- `cd sliceitoff`
-	- `./dev.sh install`
-
-	Distribution package can be installed normally:
-	- `pipx install sliceitoff.*.tar.gz`
-
-Developement:
-	
-	Project makes heavy use of poetry build and dependencies control
-	system. Many shortcuts can be run easily from `./dev.sh` script:
-	- `./dev.sh`
-	- `./dev.sh dev`
-	- `./dev.sh pytest`
-	- `./dev.sh covff`
-	- `./dev.sh all`
-	- etc
diff --git a/README.txt b/README.txt
new file mode 100644
index 0000000..917ae41
--- /dev/null
+++ b/README.txt
@@ -0,0 +1,30 @@
+-- Slice It Off! --
+
+Description:
+
+	Small game where goal is to beat hiscores. Score is gained by
+	slicing parts of playing area off. Faster you do it more score you
+	get. If you hit enemies while slicing you lose healt. There will be
+	also bonuses to boost the scores.
+
+Installing:
+	
+	One can use provided `./dev.sh` shell script to buid and install any
+	versionof game:
+	- `git clone https://git.hix.fi/scliceitoff.git`
+	- `cd sliceitoff`
+	- `./dev.sh install`
+
+	Distribution package can be installed normally:
+	- `pipx install sliceitoff.*.tar.gz`
+
+Developement:
+	
+	Project makes heavy use of poetry build and dependencies control
+	system. Many shortcuts can be run easily from `./dev.sh` script:
+	- `./dev.sh`
+	- `./dev.sh dev`
+	- `./dev.sh pytest`
+	- `./dev.sh covff`
+	- `./dev.sh all`
+	- etc
diff --git a/pyproject.toml b/pyproject.toml
index 2109569..fb01158 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,32 +3,29 @@ name = "sliceitoff"
 version = "0.3-alpha"
 description = "Arcade game where one slices play area off avoiding enemies."
 authors = ["Viljami Ilola <+@hix.fi>"]
-readme = "README.md"
+readme = "README.txt"
 packages = [{include = "sliceitoff", from = "src"}]
 
 [tool.poetry.dependencies]
 python = "^3.10"
 pygame = "^2.5.2"
 
-
 [tool.poetry.group.dev.dependencies]
 pylint = "^3.1.0"
 pytest = "^8.1.1"
 coverage = "^7.4.4"
 
-[build-system]
-requires = ["poetry-core"]
-build-backend = "poetry.core.masonry.api"
-
 [tool.poetry.scripts]
 sliceitoff = 'sliceitoff.main:main'
 
-
-
 [tool.pytest.ini_options]
 pythonpath = [ "src/sliceitoff" ]
 
 
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
+
 
 [tool.pylint.main]
 recursive = true
diff --git a/src/sliceitoff/display/display.py b/src/sliceitoff/display/display.py
index 65b4713..a161dc4 100644
--- a/src/sliceitoff/display/display.py
+++ b/src/sliceitoff/display/display.py
@@ -7,6 +7,14 @@ from .static import CGA_COLORS
 
 DEBUG = os.getenv("DEBUG")
 
+def gen_backdrop(color, color2):
+    """ generates backdrop with 50% dithering """
+    srfc = pygame.Surface((320, 240))
+    for x in range(320):
+        for y in range(240):
+            srfc.set_at((x,y),color if (x+y)%2 else color2)
+    return srfc
+        
 
 class Display():
     """display.Display - Handles graphics. Init, clear, draw, borders... """
@@ -18,6 +26,9 @@ class Display():
                 pygame.FULLSCREEN | pygame.SCALED,
                 vsync = 1 )
         Scaling.update_scaling(self.screen.get_size())
+        self.backdrop = pygame.transform.scale_by(
+                gen_backdrop(CGA_COLORS[1], CGA_COLORS[8]),
+                1_000 * Scaling.factor)
         if DEBUG:
             print(
                     "DISPLAY: \n"
@@ -30,7 +41,8 @@ class Display():
 
     def update(self, groups = None):
         """ Updates the screen: clear, blit gropus and flip """
-        self.screen.fill(CGA_COLORS[4], rect=Scaling.active)
+        self.screen.blit(self.backdrop, (Scaling.left,Scaling.top))
+        # fill(CGA_COLORS[4], rect=Scaling.active)
         for group in groups:
             group.draw(self.screen)
         self.screen.fill(0, rect=Scaling.borders[0])
-- 
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