konsofren: KONSOFREN_NO_3D, build.sh turns it on for 2D builds

1 files changed, 14 insertions, 0 deletions

diff --git a/kon/konsofren.h b/kon/konsofren.h
index 9b71a64..d7f3570 100644
--- a/kon/konsofren.h
+++ b/kon/konsofren.h
@@ -26,6 +26,9 @@
 #ifndef KONSOFREN_H
 #define KONSOFREN_H
 
+/* define KONSOFREN_NO_3D (in every file that includes this, and where the implementation is) for a 2D game, the cameras,
+   triangles, meshes and billboards are left out. 3D is on by default */
+
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
@@ -74,6 +77,8 @@ typedef struct kon_display {
 	kon_filter_t filter;
 } kon_display_t;
 
+#ifndef KONSOFREN_NO_3D
+
 typedef enum kon_projection {
 	KON_PROJECTION_PERSPECTIVE = 0,
 	KON_PROJECTION_ORTHOGRAPHIC
@@ -147,6 +152,8 @@ typedef struct kon_mesh {
 	int triangleCount;
 } kon_mesh_t;
 
+#endif /* KONSOFREN_NO_3D */
+
 /*** 2D declarations ***/
 
 /*** framebuffer declarations ***/
@@ -201,6 +208,8 @@ void kon_presentDisplay(kon_display_t *display);
 /* returns 0 if the window position is on a bar, outside the game image */
 int kon_windowToGame(const kon_display_t *display, int windowX, int windowY, int *gameX, int *gameY);
 
+#ifndef KONSOFREN_NO_3D
+
 /*** 3D declarations ***/
 
 /*** camera declarations ***/
@@ -241,6 +250,8 @@ int kon_drawBillboard(kon_framebuffer_t *fb, kon_mat4_t viewProjection, kon_vec3
 /* cube from -1 to 1 with every face mapped to the whole texture */
 extern const kon_mesh_t kon_cubeMesh;
 
+#endif /* KONSOFREN_NO_3D */
+
 /*** implementation ***/
 
 #ifdef KONSOFREN_IMPLEMENTATION
@@ -985,6 +996,8 @@ int kon_windowToGame(const kon_display_t *display, int windowX, int windowY, int
 	return 1;
 }
 
+#ifndef KONSOFREN_NO_3D
+
 /*** 3D implementation ***/
 
 
@@ -1637,6 +1650,7 @@ int kon_drawBillboard(kon_framebuffer_t *fb, kon_mat4_t viewProjection, kon_vec3
 	return 1;
 }
 
+#endif /* KONSOFREN_NO_3D */
 
 #endif /* end of KONSOFREN_IMPLEMENTATION */
 #endif