From d9eb9b2bf5c4e83b219bdee6431469e490bc76c1 Mon Sep 17 00:00:00 2001
From: fnicon <mybeddrom@gmail.com>
Date: Sun, 22 Mar 2026 14:13:12 +0900
Subject: [PATCH] kinda work movement

---
 game/love_src/src/new/components/racer.lua | 38 +++++++++++++++-------
 game/love_src/src/new/world/race.lua       |  6 +++-
 2 files changed, 32 insertions(+), 12 deletions(-)

diff --git a/game/love_src/src/new/components/racer.lua b/game/love_src/src/new/components/racer.lua
index 6c0bbf4..9ebe21c 100644
--- a/game/love_src/src/new/components/racer.lua
+++ b/game/love_src/src/new/components/racer.lua
@@ -14,7 +14,11 @@ end
 
 local default = {
   pos = vm.vec2(44.64, 10.87),
+
   orientation = vm.vec2(0.0, 0.0),
+  orientation_speed = vm.vec2(0.0, 0.0),
+  min_orientation_speed = -1.0,
+  max_orientation_speed = 1.0,
 
   velocity = vm.vec2(0.0, 0.0),
   max_speed = 1.0,
@@ -69,20 +73,28 @@ local function rotate_vector(x0, y0, theta)
   return vm.vec2(x1, y1)
 end
 
-local function velocity_flow(dt, force, mass, velocity, max_speed, min_speed)
+local function forward_velocity(dt, force, mass, velocity, max_speed, min_speed)
   if (mass == 0) then
     mass = 1
   end
-  local a = force * dt / mass
-
-  -- local theta_a = rotate_vector(force[1], 0, force[2])
-  local new_velocity = velocity + a
-  new_velocity[1] = vm.clamp(new_velocity[1], min_speed, max_speed)
-  new_velocity[2] = vm.clamp(new_velocity[2], min_speed, max_speed)
+  local a = force[1] * dt / mass
+  local new_velocity = velocity[1] + a
+  new_velocity = vm.clamp(new_velocity, min_speed, max_speed)
 
   return new_velocity
 end
 
+local function orientation_velocity(dt, force, mass, orientation_speed, orientation, max_orientation, min_orientation)
+  if (mass == 0) then
+    mass = 1
+  end
+  local a = force[2] * dt / mass
+  local new_speed = orientation_speed + a
+  new_speed = vm.clamp(new_speed, min_orientation, max_orientation)
+  local new_orientation = rotate_vector(orientation[1], orientation[2], new_speed)
+  return  new_orientation, new_speed
+end
+
 function world:update_race(dt)
   local x, y = self.data.pos[1], self.data.pos[2]
   local or_x, or_y = self.data.orientation[1], self.data.orientation[2]
@@ -103,10 +115,14 @@ function world:update_race(dt)
     magic_w.drag_boost, magic_w.drag_halt,
     magic_w.inertia, magic_w.centrifugal
   )
-  self.data.velocity = velocity_flow(dt, force, mass, velocity, max_speed, min_speed)
+  local f_v = forward_velocity(dt, force, mass, velocity, max_speed, min_speed)
+  local o, o_v = orientation_velocity(dt, force, mass, self.data.orientation_speed, self.data.orientation, self.data.max_orientation_speed, self.data.min_orientation_speed)
 
+  self.data.velocity[1] = f_v
+  self.data.orientation_speed = o_v
+  self.data.orientation = o
   -- if (self.data.velocity[1] ~= 0) then
-  self.data.pos = self.data.pos + self.data.velocity
+  self.data.pos = self.data.pos + o * f_v
   -- end
 
   self.data.inertia = force
@@ -119,7 +135,7 @@ end
 function world:draw()
   local x, y = self.data.pos[1], self.data.pos[2]
   local or_x, or_y = self.data.orientation[1], self.data.orientation[2]
-  local vx, vy = self.data.velocity[1], self.data.velocity[2]
+  local vx, vy = self.data.orientation[1] * self.data.velocity[1], self.data.orientation[2] * self.data.velocity[1]
 
   test.set_sphere(x, y, vx, vy)
 end
@@ -144,7 +160,7 @@ function world:ui_draw()
   debug_data(650, 0, 1.0, 0.0, 1.0, self.data)
   debug_data(650, 400, 1.0, 0.0, 1.0, magic_w)
 
-  local vx, vy = self.data.velocity[1], self.data.velocity[2]
+  local vx, vy = self.data.orientation[1], self.data.orientation[2]
   debug_vector(vx, vy)
 end
 
diff --git a/game/love_src/src/new/world/race.lua b/game/love_src/src/new/world/race.lua
index 36f13e1..0536216 100644
--- a/game/love_src/src/new/world/race.lua
+++ b/game/love_src/src/new/world/race.lua
@@ -24,7 +24,11 @@ local entities_default = {
     data = {
       racer = {
         pos = vm.vec2(44.64, 10.87),
-        orientation = vm.vec2(0.0, 0.0),
+
+        orientation = vm.vec2(1.0, 0.0),
+        orientation_speed = 0.0,
+        min_orientation_speed = -1.0,
+        max_orientation_speed = 1.0,
 
         velocity = vm.vec2(0.0, 0.0),
         max_speed = 1.0,