new test - simple roguelike

1 files changed, 122 insertions, 0 deletions

diff --git a/test/rl.lua b/test/rl.lua
new file mode 100644
index 0000000..0ca7b78
--- /dev/null
+++ b/test/rl.lua
@@ -0,0 +1,122 @@
+require 'curses'
+
+-- globals {{{
+local map, rows, cols
+local colors = {
+    "black", "green",
+    "red",   "cyan",
+    "white", "magenta",
+    "blue",  "yellow"
+}
+-- }}}
+
+-- helpful functions {{{
+local function pline(str)
+    curses.addstr({y = 0, x = 0}, str)
+    curses.clrtoeol()
+end
+
+local function botl(str)
+    curses.addstr({y = rows - 1, x = 0}, str)
+    curses.clrtoeol()
+end
+
+local function move_char(char, direction)
+    if direction.x == 0 and direction.y == 0 then return 1 end
+    local x, y = char.x, char.y
+    char.x = char.x + direction.x
+    char.y = char.y + direction.y
+    if x ~= char.x or y ~= char.y then return 1
+    else return 0
+    end
+end
+-- }}}
+
+-- curses initialization {{{
+curses.initscr();
+curses.start_color();
+curses.setup_term{nl = false, cbreak = true, echo = false, keypad = true}
+for _, color in ipairs(colors) do
+    curses.init_pair(color, color)
+end
+-- }}}
+
+-- get the term size and the size of the map we want to draw {{{
+rows, cols = curses.getmaxyx()
+map = {ul = {x = 0, y = 1}, lr = {x = cols - 1, y = rows - 3}}
+map.w = map.lr.x - map.ul.x + 1
+map.h = map.lr.y - map.ul.y + 1
+-- }}}
+
+-- draw the screen {{{
+curses.clear()
+for i = map.ul.y, map.lr.y do
+    curses.addstr({y = i, x = map.ul.x}, ("."):rep(map.w))
+end
+-- }}}
+
+-- initialize the character {{{
+local char = {
+    x = math.random(map.ul.x, map.lr.x),
+    y = math.random(map.ul.y, map.lr.y),
+    move = function(self, offset)
+        if self.x + offset.x < map.ul.x or
+           self.x + offset.x > map.lr.x or
+           self.y + offset.y < map.ul.y or
+           self.y + offset.y > map.lr.y then
+            return 0
+        else
+            self.x = self.x + offset.x
+            self.y = self.y + offset.y
+            return 1
+        end
+    end,
+    draw = function(self)
+        curses.addch(self, "@", {bold = true})
+        curses.move(self)
+    end,
+    erase = function(self)
+        curses.addch(self, ".")
+        curses.move(self)
+    end
+}
+-- }}}
+
+-- movement commands {{{
+local directions = {
+    y =     {x = -1, y = -1},
+    h =     {x = -1, y = 0},  left =  {x = -1, y = 0},
+    b =     {x = -1, y = 1},          
+    k =     {x = 0,  y = -1}, up =    {x = 0, y = -1},
+    ["."] = {x = 0,  y = 0},  s =     {x = 0, y = 0},
+    j =     {x = 0,  y = 1},  down =  {x = 0, y = 1},
+    u =     {x = 1,  y = -1},
+    l =     {x = 1,  y = 0},  right = {x = 1, y = 0},
+    n =     {x = 1,  y = 1},
+}
+-- }}}
+
+-- main loop {{{
+local turns = 0
+while true do
+    botl("T:" .. turns)
+    char:draw()
+    local c = curses.getch()
+    char:erase()
+    pline("")
+    if directions[c] then
+        turns = turns + char:move(directions[c])
+    elseif (c == "Q") then
+        break
+    else
+        if c == "\n" then c = "^J" end
+        if c == "\r" then c = "^M" end
+        pline("Unknown command '" .. c .. "'")
+    end
+end
+-- }}}
+
+-- cleanup {{{
+curses.clear()
+curses.endwin()
+-- }}}