Add fov control and change fov

1 files changed, 12 insertions, 1 deletions

diff --git a/src/camera.c b/src/camera.c
index 2d3c468..8aafd14 100644
--- a/src/camera.c
+++ b/src/camera.c
@@ -24,9 +24,10 @@
 ta_camera ta_camera_current;
 
 float ta_camera_sensitivity = 0.0025f;
+float ta_camera_fov         = 60.0f;
 
 void ta_camera_init(void) {
-    ta_camera_current = (ta_camera){ 0.0f, 0.0f, 5.0f, 0.0f, 0.0f };
+    ta_camera_current = (ta_camera){ 0.0f, 0.0f, 5.0f, 0.0f, 0.0f, ta_camera_fov };
 }
 
 void ta_camera_update(void) {
@@ -42,6 +43,16 @@ void ta_camera_update(void) {
     }
 }
 
+void ta_camera_set_fov(float delta_degrees) {
+    ta_camera_current.fov += delta_degrees;
+
+    if (ta_camera_current.fov < 20.0f) {
+        ta_camera_current.fov = 20.0f;
+    } else if (ta_camera_current.fov > 120.0f) {
+        ta_camera_current.fov = 120.0f;
+    }
+}
+
 void ta_camera_get_view_matrix(float *matrix) {
     float yaw_cosine   = cosf(ta_camera_current.yaw);
     float yaw_sine     = sinf(ta_camera_current.yaw);