Add ticks to gamestate

.vscode/settings.json

@@ -50,6 +50,7 @@
         "type_traits": "c",
         "xmemory": "c",
         "xtr1common": "c",
-        "xtree": "c"
+        "xtree": "c",
+        "stdint.h": "c"
     }
 }

gamestate.c

@@ -248,6 +248,16 @@ void des_float(char **in, float *f)
     memread(in, f);
 }
 
+void ser_double(char **out, double d)
+{
+    memwrite(out, d);
+}
+
+void des_double(char **in, double *d)
+{
+    memread(in, d);
+}
+
 void ser_int(char **out, int i)
 {
     memwrite(out, i);
@@ -393,10 +403,11 @@ void into_bytes(struct ServerToClient *msg, char *bytes, int *out_len, int max_l
     ser_int(&bytes, msg->your_player);
     LEN_CHECK();
 
-    ser_float(&bytes, gs->time);
+    ser_double(&bytes, gs->time);
     LEN_CHECK();
 
     ser_V2(&bytes, gs->goldpos);
+    LEN_CHECK();
 
     for (int i = 0; i < MAX_PLAYERS; i++)
     {
@@ -433,7 +444,7 @@ void from_bytes(struct ServerToClient *msg, char *bytes, int max_len)
     des_int(&bytes, &msg->your_player);
     LEN_CHECK();
 
-    des_float(&bytes, &gs->time);
+    des_double(&bytes, &gs->time);
     LEN_CHECK();
 
     des_V2(&bytes, &gs->goldpos);
@@ -494,6 +505,7 @@ struct Grid *closest_to_point_in_radius(struct GameState *gs, V2 point, float ra
     return NULL;
 }
 
+// for random generation
 static float hash11(float p)
 {
     p = fract(p * .1031);
@@ -502,6 +514,11 @@ static float hash11(float p)
     return fract(p);
 }
 
+uint64_t tick(struct GameState *gs)
+{
+    return (uint64_t)floor(gs->time / ((double)TIMESTEP));
+}
+
 void process(struct GameState *gs, float dt)
 {
     assert(gs->space != NULL);

main.c

@@ -14,6 +14,8 @@
 
 #include "types.h"
 
+#include <inttypes.h>
+
 static struct GameState gs = {0};
 static int myplayer = -1;
 static bool right_mouse_down = false;
@@ -318,6 +320,8 @@ static void frame(void)
         // process(&gs, (float)sapp_frame_duration());
     }
 
+    Log("Tick: %" PRIu64 "\n", tick(&gs));
+
     // drawing
     {
         sgp_begin(width, height);

server.c

@@ -4,7 +4,6 @@
 #include <stdio.h>
 #include <inttypes.h> // int64 printing
 
-#define TIMESTEP (1.0f / 60.0f)
 
 // started in a thread from host
 void server(void *data)
@@ -173,6 +172,7 @@ void server(void *data)
 
         if (processed)
         {
+            Log("Tick: %"PRIu64"\n", tick(&gs));
 #define MAX_BYTES_SIZE 2048 * 2
             static char bytes_buffer[MAX_BYTES_SIZE] = {0};
             for (int i = 0; i < server->peerCount; i++)

types.h

@@ -7,9 +7,12 @@
 #define MAX_GRIDS 32
 #define MAX_BOXES_PER_GRID 32
 #define BOX_MASS 1.0f
+#define TIMESTEP (1.0f / 60.0f) // not required to simulate at this, but this defines what tick the game is on
 
 // @Robust remove this include somehow, needed for sqrt and cos
 #include <math.h>
+#include <stdint.h> // tick is unsigned integer
+
 
 // including headers from headers bad
 #ifndef SOKOL_GP_INCLUDED
@@ -55,7 +58,7 @@ struct GameState
 {
     cpSpace *space;
 
-    float time;
+    double time;
 
     V2 goldpos;
 
@@ -119,6 +122,7 @@ void initialize(struct GameState *gs); // must do this to place boxes into it an
 void destroy(struct GameState *gs);
 void process(struct GameState *gs, float dt); // does in place
 struct Grid *closest_to_point_in_radius(struct GameState *gs, V2 point, float radius);
+uint64_t tick(struct GameState *gs);
 void into_bytes(struct ServerToClient *gs, char *out_bytes, int *out_len, int max_len);
 void from_bytes(struct ServerToClient *gs, char *bytes, int max_len);