diff options
Diffstat (limited to '2d')
| -rw-r--r-- | 2d/helpers.scm | 12 | ||||
| -rw-r--r-- | 2d/sprite.scm | 14 |
2 files changed, 7 insertions, 19 deletions
diff --git a/2d/helpers.scm b/2d/helpers.scm index 70b9a15..e71d7a1 100644 --- a/2d/helpers.scm +++ b/2d/helpers.scm @@ -37,15 +37,3 @@ otherwise." "Returns true if the result of a bitwise AND of the integer arguments is non-zero and returns false otherwise." (not (zero? (apply logand args)))) - -(define (rgba->gl-color color) - "Converts an integer color code into OpenGL compatible color -values. Returns a vector of four floating point numbers in range [0,1]." - (define (component offset) - (let ((mask (bitwise-arithmetic-shift-left #xff offset))) - (/ (bitwise-arithmetic-shift-right (logand mask color) offset) 255.0))) - - (vector (component 24) - (component 16) - (component 8) - (component 0))) diff --git a/2d/sprite.scm b/2d/sprite.scm index 1d4d4fd..bf2a0f6 100644 --- a/2d/sprite.scm +++ b/2d/sprite.scm @@ -29,6 +29,7 @@ #:use-module (figl contrib packed-struct) #:use-module ((sdl sdl) #:prefix SDL:) #:use-module (2d animation) + #:use-module (2d color) #:use-module (2d helpers) #:use-module (2d math) #:use-module (2d texture) @@ -61,11 +62,10 @@ (define (pack-sprite-vertices vertices offset x y width height origin-x origin-y scale-x scale-y rotation s1 t1 s2 t2 color) (define (pack-sprite x1 y1 x2 y2 x3 y3 x4 y4) - (let* ((color (rgba->gl-color color)) - (r (vector-ref color 0)) - (g (vector-ref color 1)) - (b (vector-ref color 2)) - (a (vector-ref color 3))) + (let ((r (color-r color)) + (g (color-g color)) + (b (color-b color)) + (a (color-a color))) ;; Vertices go counter clockwise, starting from the top-left ;; corner. (pack vertices offset sprite-vertex @@ -157,7 +157,7 @@ (animation-state sprite-animation-state set-sprite-animation-state!)) (define* (make-sprite drawable #:optional #:key (position #(0 0)) (scale #(1 1)) - (rotation 0) (color #xffffffff) (anchor 'center)) + (rotation 0) (color white) (anchor 'center)) "Makes a new sprite object." (let ((vertices (make-packed-array sprite-vertex 4)) (animation-state (if (animation? drawable) @@ -180,7 +180,7 @@ operation that requires a refresh of the vertex array should use this macro." (dirty-sprite-setter set-sprite-anchor! %set-sprite-anchor!) (define* (load-sprite filename #:optional #:key (position #(0 0)) (scale #(1 1)) - (rotation 0) (color #xffffffff) (anchor 'center)) + (rotation 0) (color white) (anchor 'center)) "Loads a sprite from file." (make-sprite (load-texture filename) #:position position #:scale scale #:rotation rotation #:color color #:anchor anchor)) |