lispjam-autumn-2024/mode-intro.fnl

110 lines
3.7 KiB
Fennel

(local state (require :state))
(var (screen-width screen-height) (love.window.getMode))
(var (mx my) (values (/ screen-width 2) (/ screen-height 2)))
(love.mouse.setGrabbed false)
(love.mouse.setRelativeMode false)
(love.graphics.setNewFont 30)
(var ticks 0)
;; Start screen logos
(var screen-logos [])
(var screen-logo-files (love.filesystem.getDirectoryItems "assets/images/logos"))
(each [_ v (ipairs screen-logo-files)]
(local logo {})
(tset logo :i (love.graphics.newImage (.. "assets/images/logos/" v)))
(var imgdata (love.image.newImageData (.. "assets/images/logos/" v)))
(tset logo :w (imgdata:getWidth))
(tset logo :h (imgdata:getHeight))
(table.insert screen-logos logo))
(var footer-font (love.graphics.newFont 11))
(local (major minor revision) (love.getVersion))
(fn helmet-hud []
(love.graphics.setColor 0 1 1 1)
(love.graphics.line 0 0
(+ (/ screen-width 6) 0) 35
(+ (/ screen-width 3) 0) 30
(- screen-width (/ screen-width 3)) 30
(- screen-width (/ screen-width 6)) 35
screen-width 0))
(var menu-font (love.graphics.newFont 20))
(fn menu-button [x y t la ra sa]
(love.graphics.polygon "line" (- x 100) y
(+ x 100) y
(+ x 150) (+ y 20)
(+ x 100) (+ y 40)
(- x 100) (+ y 40)
(- x 150) (+ y 20))
(love.graphics.printf t (- x 109) (+ y 3) (+ x 100)))
(var show-logos true)
(var (screen-show logo-idx fade-time fade-mod) (values 0 1 0 1))
(fn reset-logo-timers []
(set screen-show 0)
(set fade-time 0)
(set fade-mod 1))
(fn show-logo [x]
(var logo (. screen-logos x))
(if
(< screen-show 5)
(do
(love.graphics.setColor 0 1 1 fade-time)
(love.graphics.draw (. logo :i)
(- (/ screen-width 2) (/ (. logo :w) 2))
(- (/ screen-height 2) (/ (. logo :h) 2))))
; else
(do
(if (. screen-logos (+ x 1))
(set logo-idx (+ x 1))
; else
(set show-logos false))
(reset-logo-timers))))
{
:draw
(fn draw []
(if
show-logos
(show-logo logo-idx)
(do
(helmet-hud)
(menu-button (/ screen-width 2) 100 "S U R V I V O R")
(love.graphics.printf "Press P to Play"
0 (+ (/ screen-height 2) 100)
screen-width :center)
(love.graphics.printf "Press X to Quit"
0 (+ (/ screen-height 2) 150)
screen-width :center)
(love.graphics.printf
(: "Made with Love [%s.%s.%s] and Fennel"
:format major minor revision) footer-font 20 (- screen-height 30) screen-width :left)
(love.graphics.printf "A game by Bill Niblock" footer-font -20 (- screen-height 30) screen-width :right)))
)
:update
(fn update [dt]
(set ticks (+ ticks dt))
(when (> fade-time 2)
(set fade-mod -1))
(set fade-time (+ fade-time (* fade-mod dt)))
(when (> ticks 1)
(set ticks (- ticks 1))
(set screen-show (+ screen-show 1))))
:keypressed
(fn keypressed [key set-mode]
(when (= key "p")
(var newseed (+ (love.timer.getTime) mx my))
(state.setSeed newseed)
(set-mode :mode-play))
(when (= key "f")
(love.window.setFullscreen (not (love.window.getFullscreen))))
(when (= key "x")
(love.event.quit)))
:mousemoved
(fn mousemoved [x y]
(set (mx my) (values x y)))
}