Add quick-help screen

Author: rm-code

main.lua

@@ -31,6 +31,7 @@ function love.load()
     local screens = {
         main = require('src.screens.MainScreen');
         inventory = require('src.screens.InventoryScreen');
+        help = require('src.screens.HelpScreen');
     };
 
     ScreenManager.init(screens, 'main');
@@ -51,6 +52,7 @@ function love.draw()
 
     love.graphics.setColor( 255, 255, 255, 100 );
     love.graphics.print( versionString, love.graphics.getWidth() - 155, 5 );
+    love.graphics.print( 'Press "h" for help!', love.graphics.getWidth() - 155, 25 );
     love.graphics.setColor( 255, 255, 255, 255 );
 end
 

src/screens/HelpScreen.lua

@@ -0,0 +1,62 @@
+local ScreenManager = require( 'lib.screenmanager.ScreenManager' );
+local Screen = require( 'lib.screenmanager.Screen' );
+
+-- ------------------------------------------------
+-- Module
+-- ------------------------------------------------
+
+local HelpScreen = {};
+
+-- ------------------------------------------------
+-- Constructor
+-- ------------------------------------------------
+
+function HelpScreen.new()
+    local self = Screen.new();
+
+    local t = {
+        'CHARACTERS',
+        'backspace - Select previous character',
+        'space - Select next character',
+        'return - End turn',
+        ' NOTE: Characters can also be selected by right clicking on them.',
+        'i - Open inventory',
+        '',
+        'WEAPONS',
+        'left  - select previous firing mode',
+        'right - select next firing mode',
+        'r - reload current weapon',
+        '',
+        'STANCES',
+        's - change stance to Stand',
+        'c - change stance to Crouch',
+        'p - change stance to Prone',
+        '',
+        'INPUT MODES',
+        'a - Switch to Attack Mode',
+        'm - Switch to Movement Mode',
+        'e - Switch to Interaction Mode (e.g. to open barrels or doors)',
+    }
+
+    function self:draw()
+        love.graphics.setColor( 0, 0, 0, 220 );
+        love.graphics.rectangle( 'fill', 5, 5, love.graphics.getWidth() - 5, love.graphics.getHeight() - 5 );
+        love.graphics.setColor( 200, 200, 200, 200 );
+        love.graphics.rectangle( 'line', 5, 5, love.graphics.getWidth() - 5, love.graphics.getHeight() - 5 );
+        love.graphics.setColor( 255, 255, 255, 255 );
+
+        for i, line in ipairs( t ) do
+            love.graphics.print( line, 20, 20 * i );
+        end
+    end
+
+    function self:keypressed( key )
+        if key == 'escape' then
+            ScreenManager.pop();
+        end
+    end
+
+    return self;
+end
+
+return HelpScreen;

src/screens/MainScreen.lua

@@ -1,3 +1,4 @@
+local ScreenManager = require( 'lib.screenmanager.ScreenManager' );
 local Screen = require( 'lib.screenmanager.Screen' );
 local Game = require( 'src.Game' );
 local WorldPainter = require( 'src.ui.WorldPainter' );
@@ -97,6 +98,9 @@ function MainScreen.new()
         if key == 'f' then
             love.window.setFullscreen( not love.window.getFullscreen() );
         end
+        if key == 'h' then
+            ScreenManager.push( 'help' );
+        end
 
         game:keypressed( key );
     end