Yee grid.

1 files changed, 4 insertions, 3 deletions

diff --git a/src/physics.h b/src/physics.h
index 533d8a4..92ec6fd 100644
--- a/src/physics.h
+++ b/src/physics.h
@@ -21,14 +21,15 @@ enum {
 	PHY_CMD_QUIT,
 	PHY_CMD_PAUSE,
 	PHY_CMD_RESUME,
-	PHY_CMD_STEP
+	PHY_CMD_STEP,
+	PHY_CMD_RESET
 };
 
 typedef struct {
 	phy_field_info field_info;
 	phy_field_em fields[3];
 	float *field_eps, *field_mu; //permittivity and permeability
-	float time;
+	float time, time_delta;
 
 	// UI stuff
 	bool running;
@@ -39,7 +40,7 @@ typedef struct {
 void phy_sim_destroy(phy_sim *sim);
 int phy_sim_create(phy_sim *sim);
 void phy_sim_compute_const_fields(phy_sim *sim);
-void phy_sim_step(phy_sim *sim, float dt);
+void phy_sim_step(phy_sim *sim);
 
 int phy_thread(phy_sim *sim);