-#!/usr/bin/guile \
--e gacela-script -s
-!#
-
-(use-modules (gacela gacela)
- (gacela math))
-(init-gacela)
-
-(set-game-properties! #:title "Gacela Asteroids")
-
-(define max-x (/ (assoc-ref (get-game-properties) 'width) 2))
-(define min-x (- max-x))
-(define max-y (/ (assoc-ref (get-game-properties) 'height) 2))
-(define min-y (- max-y))
-
-
-;;; Asteroids
-
-(define-checking-mobs (asteroid-shots x y size) (shot (sx x) (sy y))
- (if (< (distance-between-points (list sx sy) (list x y)) size) 1 0))
-
-(define (asteroid-killed? x y size)
- (> (apply + (asteroid-shots x y size)) 0))
-
-(define-mob (asteroid
- (image (load-texture "Asteroid.png"))
- (x 0) (y 0) (angle 0) (dir 0) (size 100))
- (cond ((asteroid-killed? x y size)
- (kill-me))
- (else
- (let ((r (degrees-to-radians (- dir))))
- (set! x (+ x (sin r)))
- (set! y (+ y (cos r))))
- (set! angle (+ angle 1))
-
- (cond ((or (> x max-x) (< x min-x))
- (set! dir (* -1 dir))))
- (cond ((or (> y max-y) (< y min-y))
- (set! dir (- 180 dir))))))
-
- (translate x y)
- (rotate angle)
- (draw-texture image))
-
-
-;;; Ship
-
-(define-mob (ship
- (ship1 (load-texture "Ship1.png"))
- (ship2 (load-texture "Ship2.png"))
- (x 0) (y 0) (angle 0)
- (moving #f))
- (cond ((key? 'left) (set! angle (+ angle 5)))
- ((key? 'right) (set! angle (- angle 5))))
- (cond ((key? 'up)
- (let ((r (degrees-to-radians (- angle))))
- (set! x (+ x (* 4 (sin r))))
- (set! y (+ y (* 4 (cos r)))))
- (cond ((> x max-x) (set! x min-x))
- ((< x min-x) (set! x max-x)))
- (cond ((> y max-y) (set! y min-y))
- ((< y min-y) (set! y max-y)))
- (set! moving #t))
- (else
- (set! moving #f)))
- (cond ((key-pressed? 'space)
- (show-mob (make-shot #:x x #:y y #:angle angle))))
-
- (translate x y)
- (rotate angle)
- (draw-texture (if moving ship2 ship1)))
-
-
-;;; Shots
-
-(define-checking-mobs (impacted-shots x y) (asteroid (ax x) (ay y) (size size))
- (if (< (distance-between-points (list ax ay) (list x y)) size) 1 0))
-
-(define (shot-killed? x y)
- (> (apply + (impacted-shots x y)) 0))
-
-(define-mob (shot (x 0) (y 0) (angle 0))
- (cond ((shot-killed? x y)
- (kill-me))
- (else
- (let ((r (degrees-to-radians (- angle))))
- (set! x (+ x (* 10 (sin r))))
- (set! y (+ y (* 10 (cos r))))
- (cond ((or (> x max-x)
- (< x min-x)
- (> y max-y)
- (< y min-y))
- (kill-me))))))
-
- (translate x y)
- (rotate angle)
- (draw-line 10))
-
-
-;;; Game
-
-(define (init-asteroids n)
- (cond ((> n 0)
- (let ((x (- (random (* max-x 2)) max-x))
- (y (- (random (* max-y 2)) max-y)))
- (cond ((< (distance-between-points (list x y) '(0 0)) 120)
- (init-asteroids n))
- (else
- (let ((angle (random 360)) (dir (- (random 360) 180)))
- (show-mob (make-asteroid #:x x #:y y #:angle angle #:dir dir)))
- (init-asteroids (- n 1))))))))
-
-
-(init-asteroids 2)
-(show-mob (make-ship))
-
-(let ((font (load-font "../tetris/lazy.ttf" #:size 20)))
- (game
- (render-text (format #f "Mobs: ~a" (length (get-active-mobs))) font)))
-
-
-;; (define (new-game n)
-;; (set! asteroids (make-asteroids n))
-;; (set! ship '((x . 0) (y . 0) (angle . 0) (moving . #f)))
-;; (set! shots '()))
-
-;; (new-game 2)
-
-;; (define (killed-ship? s a)
-;; (cond ((null? a) #f)
-;; (else
-;; (or (< (distance-between-points (list (assoc-ref s 'x) (assoc-ref s 'y))
-;; (list (assoc-ref (car a) 'x) (assoc-ref (car a) 'y)))
-;; (assoc-ref (car a) 'size))
-;; (killed-ship? s (cdr a))))))
-
-
-;; (let ((asteroids #f) (ship #f) (shots #f))
-
-;; (run-game
-;; (cond ((killed-ship? ship asteroids)
-;; (new-game 2)))
-;; (receive (s a) (kill-asteroids shots asteroids)
-;; (set! shots s)
-;; (set! asteroids a))
-;; (set! asteroids (map move-asteroid asteroids))
-;; (set! ship (move-ship (alist-copy ship)))
-;; (let ((shot (ship-shot ship)))
-;; (cond (shot
-;; (set! shots (cons shot shots)))))
-;; (set! shots (move-shots shots))
-;; (for-each draw-asteroid asteroids)
-;; (for-each draw-shot shots)
-;; (draw-ship ship)))
+;;; Gacela, a GNU Guile extension for fast games development
+;;; Copyright (C) 2014 by Javier Sancho Fernandez <jsf at jsancho dot org>
+;;;
+;;; This program is free software: you can redistribute it and/or modify
+;;; it under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation, either version 3 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; This program is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+(define-module (gacela examples asteroids))
+; #:use-module (gacela game))
+
+
+(define asteroids (game "Asteroids"))
+(define player (entity))
+(set! player (add-component player (name "player")))
+(set! player (add-component player (transform)))
+(set! player (add-component player (mesh)))
+(set! asteroids (add-entity asteroids player))
+(define rock (entity))
+(set! rock (add-component rock (name "rock")))
+(set! rock (add-component rock (transform)))
+(set! rock (add-component rock (mesh)))
+(set! asteroids (add-entity asteroids rock))
+
+
+(define asteroids
+ (game "Asteroids"
+ (entity
+ (name "player")
+ (transform)
+ (mesh))
+ (entity
+ (name "rock")
+ (transform)
+ (mesh))))
projects / gacela.git / blobdiff