Sprite: add rotation and origin

2 files changed, 6 insertions, 1 deletions

diff --git a/include/mgl/gl.h b/include/mgl/gl.h
index 75bc764..7dc1dd7 100644
--- a/include/mgl/gl.h
+++ b/include/mgl/gl.h
@@ -43,6 +43,7 @@ typedef struct {
     void (*glLoadIdentity)(void);
     void (*glLoadMatrixf)(const float *m);
     void (*glTranslatef)(float x, float y, float z);
+    void (*glRotatef)(float angle, float x, float y, float z);
     void (*glGenBuffers)(int n, unsigned int *buffers);
     void (*glBindBuffer)(unsigned int target, unsigned int buffer);
     void (*glDeleteBuffers)(int n, const unsigned int *buffers);
diff --git a/include/mgl/graphics/sprite.h b/include/mgl/graphics/sprite.h
index 03f81ab..64d9c03 100644
--- a/include/mgl/graphics/sprite.h
+++ b/include/mgl/graphics/sprite.h
@@ -12,15 +12,19 @@ typedef struct {
     mgl_color color;
     mgl_vec2f position;
     mgl_vec2f scale;
+    mgl_vec2f origin; /* top left by default (0, 0) */
+    float rotation; /* in degrees */
 } mgl_sprite;
 
 /* |texture| may be NULL */
-void mgl_sprite_init(mgl_sprite *self, mgl_texture *texture, float x, float y);
+void mgl_sprite_init(mgl_sprite *self, mgl_texture *texture);
 
 /* |texture| may be NULL */
 void mgl_sprite_set_texture(mgl_sprite *self, mgl_texture *texture);
 void mgl_sprite_set_position(mgl_sprite *self, mgl_vec2f position);
 void mgl_sprite_set_color(mgl_sprite *self, mgl_color color);
+void mgl_sprite_set_rotation(mgl_sprite *self, float degrees);
+void mgl_sprite_set_origin(mgl_sprite *self, mgl_vec2f origin);
 void mgl_sprite_draw(mgl_context *context, mgl_sprite *sprite);
 
 #endif /* MGL_SPRITE_H */