Verlet ropes :)

1 files changed, 18 insertions, 0 deletions

diff --git a/src/main.odin b/src/main.odin
index 1d3de1a..a0c2fcb 100644
--- a/src/main.odin
+++ b/src/main.odin
@@ -7,6 +7,7 @@ import "core:c/libc"
 import "core:fmt"
 import "core:log"
 import "core:mem"
+import "core:math"
 import "core:math/linalg"
 
 import rl "vendor:raylib"
@@ -22,14 +23,18 @@ Rect :: struct {
 
 ROOM_FADE_SIZE :: 8
 
+FIXED_UPDATE_RATE :: 1.0/60
+
 state: struct {
   debug_mode: bool,
   camera_target: Vec2,
+  last_fixed_update: f64,
   camera: rl.Camera2D,
   prop_list: Entity_List(Prop),
   wiggle_prop_list: Entity_List(Wiggle_Prop),
   platform_list: Entity_List(Platform),
   bullet_list: Entity_List(Bullet),
+  rope_list: Entity_List(Rope),
 }
 
 logger: log.Logger
@@ -72,6 +77,13 @@ frame :: proc() {
 
   dt := rl.GetFrameTime()
 
+  if rl.GetTime() - state.last_fixed_update > FIXED_UPDATE_RATE {
+    state.last_fixed_update = rl.GetTime()
+    for cb in fixed_update_callbacks {
+      cb(FIXED_UPDATE_RATE)
+    }
+  }
+
   for cb in update_callbacks {
     cb(dt)
   }
@@ -98,6 +110,7 @@ frame :: proc() {
   for cb in draw_callbacks {
     cb()
   }
+
   draw_room(current_room.id)
 
   rl.DrawRectangleGradientH(
@@ -168,6 +181,10 @@ cleanup :: proc() {
   delete_entity_list(state.bullet_list)
   delete_entity_list(state.prop_list)
   delete_entity_list(state.wiggle_prop_list)
+
+  clear_ropes()
+  delete_entity_list(state.rope_list)
+
   phys.destroy_world()
 }
 
@@ -221,3 +238,4 @@ main :: proc() {
 
   cleanup()
 }
+