From fb1643e6e62b5ac63fcd0993aa6694d39e985cc6 Mon Sep 17 00:00:00 2001
From: sergeypdev <sergeypoznyak@protonmail.com>
Date: Sun, 16 Mar 2025 00:17:00 +0400
Subject: [PATCH] Fix mem leak, change number of stacks

---
 game/game.odin               | 17 ++++++++++-------
 game/physics/simulation.odin |  4 ++--
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/game/game.odin b/game/game.odin
index c0c5f17..9b6418f 100644
--- a/game/game.odin
+++ b/game/game.odin
@@ -277,8 +277,8 @@ update_runtime_world :: proc(runtime_world: ^Runtime_World, dt: f32) {
 		)
 
 		if true {
-			for x in 0 ..< 5 {
-				for y in 0 ..< 20 {
+			for x in 0 ..< 10 {
+				for y in 0 ..< 10 {
 					physics.immediate_body(
 						&world.physics_scene,
 						&runtime_world.solver_state,
@@ -320,8 +320,8 @@ update_runtime_world :: proc(runtime_world: ^Runtime_World, dt: f32) {
 		wheel_extent_x := f32(1.7)
 		wheel_y := f32(-0.5)
 		rest := f32(1)
-		natural_frequency := f32(0.2)
-		damping := f32(0.12)
+		natural_frequency := f32(0.3)
+		damping := f32(0.08)
 		radius := f32(0.6)
 		wheel_front_z := f32(3.05)
 		wheel_back_z := f32(-2.45)
@@ -388,7 +388,7 @@ update_runtime_world :: proc(runtime_world: ^Runtime_World, dt: f32) {
 
 		DRIVE_IMPULSE :: 10000
 		BRAKE_IMPULSE :: 10000
-		TURN_ANGLE :: -f32(30) * math.RAD_PER_DEG
+		TURN_ANGLE :: -f32(20) * math.RAD_PER_DEG
 
 		for wheel_handle in drive_wheels {
 			wheel := physics.get_suspension_constraint(sim_state, wheel_handle)
@@ -405,16 +405,19 @@ update_runtime_world :: proc(runtime_world: ^Runtime_World, dt: f32) {
 			}
 		}
 
+		car_body := physics.get_body(sim_state, runtime_world.car_handle)
+		turn_vel_correction := clamp(30.0 / linalg.length(car_body.v), 0, 1)
+
 		for wheel_handle in turn_wheels {
 			wheel := physics.get_suspension_constraint(sim_state, wheel_handle)
 			wheel.turn_angle = 0
 
 			if rl.IsKeyDown(.A) && !g_mem.free_cam {
-				wheel.turn_angle += -TURN_ANGLE
+				wheel.turn_angle += -TURN_ANGLE * turn_vel_correction
 			}
 
 			if rl.IsKeyDown(.D) && !g_mem.free_cam {
-				wheel.turn_angle += TURN_ANGLE
+				wheel.turn_angle += TURN_ANGLE * turn_vel_correction
 			}
 		}
 
diff --git a/game/physics/simulation.odin b/game/physics/simulation.odin
index 6365179..6fff0bb 100644
--- a/game/physics/simulation.odin
+++ b/game/physics/simulation.odin
@@ -357,7 +357,7 @@ pgs_solve_contacts :: proc(
 		impulse_coef = 0
 	}
 
-	random_order := make([]i32, len(sim_state.contact_container.contacts))
+	random_order := make([]i32, len(sim_state.contact_container.contacts), context.temp_allocator)
 	{
 		for i in 0 ..< len(random_order) {
 			random_order[i] = i32(i)
@@ -522,7 +522,7 @@ pgs_solve_suspension :: proc(sim_state: ^Sim_State, config: Solver_Config, dt: f
 
 						lateral_vel := lg.dot(right, vel_contact)
 
-						friction := f32(0.8)
+						friction := f32(1)
 						friction_clamp := -v.spring_impulse * friction
 
 						incremental_impulse := -inv_w * lateral_vel