hacked together sphere positioning from lua

game/include/lua_api.h

@@ -13,6 +13,7 @@ extern "C" {
   void draw_quad(int x1, int y1, int x2, int y2,
                  int x3, int y3, int x4, int y4);
 
+  void set_sphere(float x, float y, float angle);
 #ifdef __cplusplus
 }
 #endif

game/include/view.h

@@ -39,6 +39,8 @@ namespace view {
                              float delta_yaw, float delta_pitch);
   }
 
+  XMVECTOR get_normal();
+  XMVECTOR get_direction();
   void apply_fov(float delta);
   void update_transforms();
   void load();

game/love_src/src/world/common/system/debug_world_draw.lua

@@ -41,7 +41,7 @@ function system:draw()
     local text = e[debug_label.dict.debug_label].data
     local x = e[transform.dict.position].data[1]
     local y = e[transform.dict.position].data[2]
-    draw(text, x, y)
+    --draw(text, x, y)
   end
 end
 

game/love_src/src/world/common/system/trigger_button.lua

@@ -74,7 +74,7 @@ function system:draw()
     local w = e[c_button.dict.collider].data.w
     local h = e[c_button.dict.collider].data.h
     local label = e[c_button.dict.label].data
-    draw(label, x, y, w, h)
+    --draw(label, x, y, w, h)
   end
 end
 

game/love_src/src/world/common/system/video_render.lua

@@ -43,7 +43,7 @@ end
 function system:draw()
   for _, e in ipairs(self.pool) do
     video = e[c_video.dict.video].data.video
-    love.graphics.draw(video, 0, 0)
+    --love.graphics.draw(video, 0, 0)
   end
 end
 

game/love_src/src/world/race/init.lua

@@ -43,7 +43,7 @@ function wrapper:draw()
       local frame_i = v[animation.dict.frame_i].data
       local img = v[animation.dict.image_frame].data.images
       if (img ~= nil) then
-        love.graphics.draw(img[frame_i], v[transform.dict.position].data[1], v[transform.dict.position].data[2])
+        --love.graphics.draw(img[frame_i], v[transform.dict.position].data[1], v[transform.dict.position].data[2])
       end
     end
   end

game/love_src/src/world/top_down_race/system/velocity.lua

@@ -88,7 +88,7 @@ function system:load()
   end)
 
   for _, e in ipairs(self.pool) do
-    e:give("race.pos", 10, 10)
+    e:give("race.pos", 44.64, 10.87)
     e:give("race.scale", 1, 1)
     e:give("race.angle", 0)
     e:give("race.image", "love_src/asset/image/arrow_right.png")
@@ -247,18 +247,19 @@ end
 
 function system:draw()
   for _, f in ipairs(frictions) do
-    love.graphics.push()
-    love.graphics.setColor(f.color)
-    love.graphics.rectangle("fill", f.colliders[1], f.colliders[2], f.colliders[3], f.colliders[4])
-    love.graphics.setColor(1, 1, 1)
-    love.graphics.pop()
+    -- love.graphics.push()
+    -- love.graphics.setColor(f.color)
+    -- love.graphics.rectangle("fill", f.colliders[1], f.colliders[2], f.colliders[3], f.colliders[4])
+    -- love.graphics.setColor(1, 1, 1)
+    -- love.graphics.pop()
   end
   for _, e in ipairs(self.pool) do
     local accel, brake, grip, max_speed, steer, velocity = get(e)
     local x, y, sx, sy, angle = e["race.pos"].data[1], e["race.pos"].data[2], e["race.scale"].data[1], e["race.scale"].data[2], e["race.angle"].data
     local image = e["race.image"].data.image
     local origin = e["race.image"].data.origin
-    draw(velocity, x, y, sx, sy, angle, image, origin)
+    --draw(velocity, x, y, sx, sy, angle, image, origin)
+    test.set_sphere(x, y, angle)
   end
 end
 

game/main.lua

@@ -32,6 +32,8 @@ void update(float time);
   void draw_set_color(float r, float g, float b);
   void draw_quad(int x1, int y1, int x2, int y2,
                  int x3, int y3, int x4, int y4);
+
+  void set_sphere(float x, float y, float angle);
 ]]
    local source_path = love.filesystem.getSource()
    test = ffi.load(source_path .. "/test.so")
@@ -185,8 +187,55 @@ local nico_draw = function()
    -- enough, and we should discuss this in more detail.
 end
 
+
+local wm = require("world_map")
+
+world = {
+  ["top_down_race"] = require("love_src.src.world.top_down_race")(),
+  ["main_menu"] = require("love_src.src.world.main_menu")(),
+  ["1_intro"] = require("love_src.src.world.1_intro")(),
+  ["2_town_square"] = require("love_src.src.world.2_town_square")(),
+  ["race"] = require("love_src.src.world.race")(),
+  ["train"] = require("love_src.src.world.train")(),
+};
+
+current = wm["top_down_race"]
+
+function load_world(world_to_load)
+  current = world_to_load
+  world[current]:reload()
+end
+
+function love_load()
+  world[current]:load()
+end
+
+function love_update(dt)
+  world[current]:update(dt)
+end
+
+function love_draw()
+  world[current]:draw()
+end
+
+function love_keyreleased(key, scancode)
+  world[current]:keyreleased(key, scancode)
+end
+
+function love_keypressed(key, scancode, isrepeat)
+  world[current]:keypressed(key, scancode, isrepeat)
+end
+
+function love_mousereleased(x, y, button, istouch, presses)
+  world[current]:mousereleased(x, y, button, istouch, presses)
+end
+
+
 function love.run()
    init()
+   love_load()
+
+   local last_time = love.timer.getTime()
 
    return function()
       love.event.pump()
@@ -196,8 +245,19 @@ function love.run()
                return a or 0, b
             end
          end
+
+         if name == 'keyreleased' then
+            love_keyreleased(a,b,c,d,e,f,g,h)
+         end
+         if name == 'keypressed' then
+            love_keypressed(a,b,c,d,e,f,g,h)
+         end
+         if name == 'mousereleased' then
+            love_mousereleased(a,b,c,d,e,f,g,h)
+         end
       end
 
+
       local width
       local height
       local flags
@@ -205,8 +265,13 @@ function love.run()
       test.update_window(width, height)
 
       local time = love.timer.getTime()
-      update(time)
+      --update(time)
+      test.update(time)
+      local dt = last_time - time
+      last_time = time
+      love_update(dt)
 
+      love_draw()
       draw()
 
       local mouse_down = love.mouse.isDown(1)
@@ -221,45 +286,3 @@ function love.run()
       love.timer.sleep(0.001)
    end
 end
-
--- local wm = require("world_map")
-
--- world = {
---   ["top_down_race"] = require("love_src.src.world.top_down_race")(),
---   -- ["main_menu"] = require("love_src.src.world.main_menu")(),
---   -- ["1_intro"] = require("love_src.src.world.1_intro")(),
---   -- ["2_town_square"] = require("love_src.src.world.2_town_square")(),
---   -- ["race"] = require("love_src.src.world.race")(),
---   -- ["train"] = require("love_src.src.world.train")(),
--- };
-
--- current = wm["top_down_race"]
-
--- function load_world(world_to_load)
---   current = world_to_load
---   world[current]:reload()
--- end
-
--- function love.load()
---   world[current]:load()
--- end
-
--- function love.update(dt)
---   world[current]:update(dt)
--- end
-
--- function love.draw()
---   world[current]:draw()
--- end
-
--- function love.keyreleased(key, scancode)
---   world[current]:keyreleased(key, scancode)
--- end
-
--- function love.keypressed(key, scancode, isrepeat)
---   world[current]:keypressed(key, scancode, isrepeat)
--- end
-
--- function love.mousereleased(x, y, button, istouch, presses)
---   world[current]:mousereleased(x, y, button, istouch, presses)
--- end

game/src/lua_api.cpp

@@ -1,5 +1,6 @@
 #include "font/bitmap.h"
 #include "pixel_line_art.h"
+#include "view.h"
 
 #include "lua_api.h"
 
@@ -43,3 +44,14 @@ void draw_quad(int x1, int y1, int x2, int y2,
   pixel_line_art::draw_quad(x1, y1, x2, y2,
                             x3, y3, x4, y4);
 }
+
+void set_sphere(float x, float y, float angle)
+{
+  XMVECTOR unit = XMVectorSet(1, 0, 0, 0); // the angle==0 unit vector
+  view::state.forward = -XMVector3TransformNormal(unit, XMMatrixRotationZ(angle));
+  view::state.normal = view::get_normal();
+  view::state.direction = view::get_direction();
+
+  view::state.at = XMVectorSet(x, y, 52, 0);
+  view::state.eye = view::state.at - view::state.direction * view::at_distance;
+}

game/src/minecraft.cpp

@@ -269,7 +269,7 @@ namespace minecraft {
         continue;
       per_world::load_world(&world::descriptors[i], world_state[i]);
     }
-    current_world = &world_state[world::world_id::MIDNIGHTMEADOW];
+    current_world = &world_state[world::world_id::GRANDLECTURN];
   }
 
   static inline int popcount(int x)

game/src/test.cpp

@@ -325,7 +325,7 @@ void update_joystick(int joystick_index,
                                                            delta_yaw, delta_pitch);
   view::apply_fov(0.01 * up + -0.01 * down);
 
-  if (true) {
+  if (false) {
     minecraft_view_update(direction);
   }
 
@@ -349,7 +349,7 @@ void update(float time)
 {
   current_time = time;
 
-  scene_state.update(time);
+  //scene_state.update(time);
   /*
   view::state.eye = XMVector3Transform(XMVectorZero(), node_eye->world);
   if (node_at == nullptr)

game/src/view.cpp

@@ -32,12 +32,12 @@ namespace view {
     return pitch;
   }
 
-  static inline XMVECTOR get_normal()
+  XMVECTOR get_normal()
   {
     return XMVector3NormalizeEst(XMVector3Cross(state.forward, state.up));
   }
 
-  static inline XMVECTOR get_direction()
+  XMVECTOR get_direction()
   {
     XMMATRIX mrn = XMMatrixRotationAxis(state.normal, state.pitch);
     return XMVector3Transform(state.forward, mrn);
@@ -106,11 +106,13 @@ namespace view {
     // position
     // grandlecturn
     //state.eye = XMVectorSet(4.71f, 65.30, 57.92, 1);
+    state.at = XMVectorSet(44.64, 10.87, 50.98, 1);
+    view::state.eye = view::state.at - view::state.direction * view::at_distance;
 
     // midnightmeadow
-    state.eye = XMVectorSet(13.71f, -3.36, 90.92, 1);
+    //state.eye = XMVectorSet(13.71f, -3.36, 90.92, 1);
 
-    state.at = state.eye + state.direction * at_distance;
+    //state.at = state.eye + state.direction * at_distance;
     //state.at = XMVectorSet(0, 0, 0, 1);
     //state.eye = XMVectorSet(0, -100, 0, 1);
   }