From 248a0977f2eb42c308a2430b28b691b75ad1a10d Mon Sep 17 00:00:00 2001
From: Xander Swan <no email>
Date: Fri, 5 Dec 2025 23:16:27 -0500
Subject: display some debug information

---
 src/main.odin | 41 +++++++++++++++++++++++++++++++++++++----
 1 file changed, 37 insertions(+), 4 deletions(-)

(limited to 'src/main.odin')

diff --git a/src/main.odin b/src/main.odin
index 48bf454..e58b94d 100644
--- a/src/main.odin
+++ b/src/main.odin
@@ -13,6 +13,7 @@ import sapp "shared:sokol/app"
 import sglue "shared:sokol/glue"
 import stime "shared:sokol/time"
 import slog "shared:sokol/log"
+import sdtxt "shared:sokol/debugtext"
 
 import "draw"
 import "phys"
@@ -33,6 +34,10 @@ state: struct {
   physics_world: phys.World,
 
   input: Input,
+
+  fps: f32,
+  last_fps: f32,
+  frames_rendered: int,
 }
 
 logger: log.Logger
@@ -53,6 +58,18 @@ init :: proc "c" () {
     logger = {func=slog.func},
   })
 
+  sdtxt.setup({
+    fonts = {
+      0 = sdtxt.font_kc853(),
+      // sdtxt.font_kc854(),
+      // sdtxt.font_z1013(),
+      // sdtxt.font_cpc(),
+      // sdtxt.font_c64(),
+      // sdtxt.font_oric(),
+    },
+    logger = {func=slog.func},
+  })
+
   init_keybinds(&state.input)
 
   draw.init(&state.renderer)
@@ -72,10 +89,6 @@ init :: proc "c" () {
     })
     i += 65
   }
-  // make_platform(Rect{
-  //   start = {i, 340},
-  //   size = {20, 20}
-  // })
 
   make_platform(Rect{
     start = {160, 320},
@@ -123,6 +136,16 @@ frame :: proc "c" () {
 
   update_player(&state.player, f32(sapp.frame_duration()))
 
+  // sdtxt.canvas(f32(sapp.width()), f32(sapp.height()))
+  sdtxt.canvas(draw.SCREEN_WIDTH, draw.SCREEN_HEIGHT)
+  sdtxt.origin(0.1, 0.1)
+  sdtxt.home()
+  sdtxt.font(0)
+
+  stats := sg.query_frame_stats()
+  sdtxt.printf("FPS: %f\n", state.fps)
+  sdtxt.printf("Draw calls: %d\n", stats.num_draw)
+
   draw.new_frame(&state.renderer)
 
   draw_player(state.player)
@@ -132,6 +155,14 @@ frame :: proc "c" () {
   draw.end_frame(&state.renderer)
 
   free_all(context.temp_allocator)
+
+  state.frames_rendered += 1
+  now := f32(stime.sec(stime.now()))
+  if now - state.last_fps > 1 {
+    state.fps = f32(state.frames_rendered) / (now - state.last_fps)
+    state.last_fps = now
+    state.frames_rendered = 0
+  }
 }
 
 event :: proc "c" (event: ^sapp.Event) {
@@ -147,6 +178,7 @@ event :: proc "c" (event: ^sapp.Event) {
 cleanup :: proc "c" () {
   context = default_context()
   sg.shutdown()
+  sdtxt.shutdown()
 
   delete_entity_list(state.platform_list)
 }
@@ -169,3 +201,4 @@ main :: proc() {
 
   log.destroy_console_logger(logger)
 }
+
-- 
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