(+) Costants.hs, (+) Unlicense, (^) README

LICENSE

@@ -1,30 +1,24 @@
-Copyright Author name here (c) 2022
+This is free and unencumbered software released into the public domain.
 
-All rights reserved.
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
 
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
 
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
 
-    * Redistributions in binary form must reproduce the above
-      copyright notice, this list of conditions and the following
-      disclaimer in the documentation and/or other materials provided
-      with the distribution.
-
-    * Neither the name of Author name here nor the names of other
-      contributors may be used to endorse or promote products derived
-      from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+For more information, please refer to <http://unlicense.org/>

README.md

@@ -3,4 +3,14 @@ Amaranth is a small drawing app written in Haskell. It was
 created as a small learning project, and it probably won't
 be continued. 
 
+This code is licensed with The Unlicense. Learn more at 
+https://unlicense.org/.
+
+# ⚙️ How to use 
+Amaranth comes with two modes with which you can draw on 
+the screen:
+- **brush mode**, which you can use by hitting B on the keyboard, and
+- **eraser mode**, which you can use by pressing E. 
+
 # 📸 Screenshots
+None by now. 😥

amaranth.cabal

@@ -26,6 +26,7 @@ source-repository head
 library
   exposed-modules:
       Canvas
+      Costants
       Lib
   other-modules:
       Paths_amaranth

src/Canvas.hs

@@ -1,6 +1,6 @@
 module Canvas where
 
-import Graphics.Gloss.Data.Picture ( Picture (Text), pictures )
+import Graphics.Gloss.Data.Picture ( Picture (Text), pictures, scale )
 import Graphics.Gloss.Interface.IO.Interact ( Event (EventKey), KeyState (Down), Key (Char) )
 
 data Canvas = Canvas {
@@ -10,14 +10,11 @@ data Canvas = Canvas {
 
 data Mode = Brush | Eraser deriving (Eq, Show)
 
-initial :: Canvas
-initial = Canvas {
-    items   =   [] 
-,   mode    =   Brush
-}
+showMode :: Canvas -> Picture
+showMode canv = scale 0.1 0.1 $ Text ( show (mode canv))
 
 render :: Canvas -> Picture
-render canvas = pictures ( Text ( show (mode canvas)) : items canvas ) 
+render canv = pictures ( showMode canv : items canv ) 
 
 handle :: Event -> Canvas -> Canvas
 handle (EventKey (Char 'b') Down _ _ ) canv = canv { mode = Brush }

src/Costants.hs

@@ -0,0 +1,16 @@
+module Costants where
+
+import Canvas
+import Graphics.Gloss
+
+display :: Display
+display = InWindow "Amaranth" (500, 500) (0,0)
+
+background :: Color 
+background = white
+
+initial :: Canvas
+initial = Canvas {
+    items   =   [] 
+,   mode    =   Brush
+}

src/Lib.hs

@@ -1,14 +1,15 @@
 module Lib where
 
 import Graphics.Gloss
-import Canvas as C
-
--- Variables 
-display :: Display
-display = InWindow "Amaranth" (500, 500) (0,0)
-
-background :: Color 
-background = white
+import Canvas
+import Costants 
 
 app :: IO ()
-app = play Lib.display background 60 C.initial C.render C.handle C.update
+app = play 
+      Costants.display      -- Display type
+      Costants.background   -- Background
+      60                    -- FPS
+      Costants.initial      -- Initial world
+      Canvas.render         -- Render function
+      Canvas.handle         -- Input hadler
+      Canvas.update         -- Update function (unused, since we don't have to make animations)