From b5f1f175ac08ef1e4a90bd66ce20d159ba146193 Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson2@worcester.edu>
Date: Fri, 15 Aug 2014 23:00:00 -0400
Subject: Delete obsolete primitives module.

* sly/primitives.scm: Delete it.
---
 sly/primitives.scm | 120 -----------------------------------------------------
 1 file changed, 120 deletions(-)
 delete mode 100644 sly/primitives.scm

diff --git a/sly/primitives.scm b/sly/primitives.scm
deleted file mode 100644
index f5e08ca..0000000
--- a/sly/primitives.scm
+++ /dev/null
@@ -1,120 +0,0 @@
-                                        ; primitives.scm
-
-(define-module (sly primitives)
-  #:use-module (srfi srfi-1)
-  #:use-module (gl)
-  #:use-module (gl contrib packed-struct)
-  #:use-module ((sdl sdl) #:prefix SDL:)
-  #:use-module (srfi srfi-9)
-  #:use-module (sly color)
-  #:use-module (sly vector)
-  #:export (make-primitive
-            primitive?
-            primitive-vectors
-            primitive-mode
-            make-rectangle
-            make-triangle
-            make-line
-            make-line-strip
-            draw-primitive
-            draw-outline
-            draw-points))
-
-;;;
-;;; Vertex arrays for primitives.
-;;;
-
-(define-packed-struct primitive-vertex
-  (x float)
-  (y float))
-
-(define (make-vertex-array vertices)
-  "Create a vertex-array usable by (gl-draw-arrays) from `vertices`."
-  (define (for-each-counter f l)
-    (fold (lambda (elem counter)
-            (f elem counter)
-            (+ counter 1))
-          0
-          l))
-  (define (pack-array array offset)
-    (for-each-counter (lambda (vertex offset)
-                        (pack array offset primitive-vertex
-                              (vx vertex)
-                              (vy vertex)))
-                      vertices))
-  (let ((vertex-list (make-packed-array primitive-vertex
-                                        (length vertices))))
-    (pack-array vertex-list 0)
-    vertex-list))
-
-(define (draw-vertices vertex-array count mode)
-  "Draw `count` vertices from `vertex-array` using the mode `mode`.
-`vertex-array` should be an array of packed `primitive-vertex` structs."
-  (let ((pointer-type (tex-coord-pointer-type float)))
-    (gl-enable-client-state (enable-cap vertex-array))
-    (set-gl-vertex-array pointer-type
-                         vertex-array
-                         2
-                         #:stride (packed-struct-size primitive-vertex)
-                         #:offset (packed-struct-offset primitive-vertex x))
-    (gl-draw-arrays mode 0 count)
-    (gl-disable-client-state (enable-cap vertex-array))))
-
-;;;
-;;; Primitives
-;;;
-
-;; Object for drawing lines, polygons, points, etc.
-(define-record-type <primitive>
-  (%make-primitive color vectors vertex-array mode count)
-  primitive?
-  (vectors primitive-vectors)
-  (vertex-array primitive-vertex-array)
-  (mode primitive-mode)
-  (count primitive-vector-count))
-
-(define* (draw-primitive primitive #:optional mode)
-  "Draw the primitive `primitive` using the optional mode `mode`."
-  (let ((mode (if mode mode (primitive-mode primitive)))
-        (vertex-array (primitive-vertex-array primitive)))
-    (use-color (primitive-color primitive))
-    (draw-vertices vertex-array
-                   (primitive-vector-count primitive)
-                   mode)))
-
-(define (draw-outline primitive)
-  "Draw the vertices of `primitive` as a line-loop,
-which effectively draws the outline of a shape."
-  (draw-primitive primitive
-                  (begin-mode line-loop)))
-
-(define (draw-points primitive)
-  "Draw the vertices of `primitive` as points."
-  (draw-primitive primitive
-                  (begin-mode points)))
-
-(define (make-primitive color vectors mode)
-  "Create a new primitive object. `vectors` should be a list
-of vectors that will be drawn when the object is drawn, and
-`mode` should be a value from (begin-mode) (quads, triangles,
-etc.)."
-  (%make-primitive color vectors (make-vertex-array vectors)
-                   mode (length vectors)))
-
-(define (make-polygon color vectors)
-  "Take a list of vectors and return a primitive object."
-  (make-primitive color vectors (begin-mode polygon)))
-
-(define (make-rectangle color v1 v2 v3 v4)
-  (make-primitive color (list v1 v2 v3 v4) (begin-mode quads)))
-
-(define (make-triangle color v1 v2 v3)
-  (make-primitive color (list v1 v2 v3) (begin-mode triangles)))
-
-(define (make-line-strip color vectors)
-  (if (< (length vectors) 2)
-      (error "Not enough vectors given to draw a line!")
-      (make-primitive color vectors (begin-mode line-strip))))
-
-(define (make-line color v1 v2)
-  (make-line-strip color (list v1 v2)))
-- 
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