72 lines
2.2 KiB
Common Lisp
72 lines
2.2 KiB
Common Lisp
(eval-when (:compile-toplevel :load-toplevel :execute)
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(ql:quickload :cl-raylib))
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(defpackage :raylib-user
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(:use :cl :3d-vectors)
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(:local-nicknames (:rl :raylib)))
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(in-package :raylib-user)
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(defparameter *move-speed* 2.0)
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(defstruct game-state
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(textures (make-hash-table))
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(player-pos (vec 100 100)))
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(defparameter *game-state* nil)
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(defun bind-texture (state key path)
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(setf (gethash key (game-state-textures state)) (rl:load-texture (uiop:native-namestring path))))
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(defun game-init ()
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(let ((state (make-game-state)))
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(bind-texture state 'terrain "~/Development/tinyswords/assets/Terrain/Ground/Tilemap_Flat.png")
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state))
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(defun game-input (state)
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(with-slots ((pos player-pos)) state
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(let ((dx 0.0) (dy 0.0))
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(when (rl:is-key-down :key-right) (incf dx 1))
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(when (rl:is-key-down :key-left) (decf dx 1))
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(when (rl:is-key-down :key-up) (decf dy 1))
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(when (rl:is-key-down :key-down) (incf dy 1))
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(setf pos (v+ pos (v* (vunit* (vec dx dy)) *move-speed*))))))
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(defun game-update (state) '())
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(defun draw-tile (tilemap size col row)
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(rl:draw-texture-rec
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tilemap
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(rl:make-rectangle :x (* size (mod col 5)) :y (* size (mod row 5)) :width size :height size)
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(vec (* col size) (* row size))
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:white))
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(defun draw-ground ()
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(let ((size 32)
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(terrain-tex (gethash 'terrain (game-state-textures *game-state*))))
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(loop for row from 0 to 16
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do (loop for col from 0 to 32
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do (draw-tile terrain-tex size col row)))))
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(defun game-draw (state)
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(rl:clear-background (rl:make-rgba 71 171 169 1))
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(draw-ground)
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;; (rl:draw-texture-v (gethash 'terrain (game-state-textures state)) (vec 50 50) :white)
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(rl:draw-fps 10 5))
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(defun main ()
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(let* ((screen-width 900)
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(screen-height 500))
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(rl:with-window (screen-width screen-height "RTS")
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(rl:set-target-fps 60)
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(setf *game-state* (game-init))
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(loop :until (rl:window-should-close)
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:do (game-input *game-state*)
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(game-update *game-state*)
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(rl:with-drawing
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(game-draw *game-state*)))
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(loop for value being the hash-values of (game-state-textures *game-state*)
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do (rl:unload-texture value)))))
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(main)
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