add back player

data/scripts/classes/player.lua

@@ -0,0 +1,39 @@
+local Vector3 = require("types.vector3")
+local util = require("util")
+
+local Player = {
+  position = Vector3(0, 1, 0),
+  velocity = Vector3(),
+
+  speed = 0.07,
+  mouse_sensitivity = 0.01,
+
+  yaw = 0,
+  yaw_speed = 0.05,
+}
+
+function Player:tick(ctx)
+  input_action{name = "left", control = "A"}
+  input_action{name = "right", control = "D"}
+  input_action{name = "forward", control = "W"}
+  input_action{name = "back", control = "S"}
+
+  local camera_forward = Vector3(draw_camera_from_principal_axes(self).direction)
+  camera_forward.y = 0
+  camera_forward = camera_forward:normalized()
+  local camera_right = camera_forward:cross(Vector3.UP)
+
+  local forward_input = util.b2n(input_action_pressed{name = "forward"}) - util.b2n(input_action_pressed{name = "back"})
+  local strafe_input = util.b2n(input_action_pressed{name = "right"}) - util.b2n(input_action_pressed{name = "left"})
+
+  local direction = ((camera_forward * forward_input) + (camera_right * strafe_input)):normalized()
+  self.velocity = direction * self.speed
+
+  if ctx.mouse_capture then
+    self.yaw = self.yaw + self.mouse_sensitivity * ctx.mouse_movement.x
+  end
+
+  self.position = self.position + self.velocity
+end
+
+return Player

data/scripts/game.lua

@@ -1,8 +1,31 @@
+local player = require "classes.player"
+local util = require "util"
+local Vector3 = require "types.vector3"
+
 -- called every frame, with constant delta time
 function game_tick()
   -- ctx.initialization_needed is true first frame and every time dynamic reload is performed
   if ctx.initialization_needed then
     -- ctx.udata persists on reload
-    ctx.udata = {}
+    ctx.udata = {
+      capture = false
+    }
   end
+
+  ctx.mouse_capture = ctx.udata.capture
+  input_action{name = "toggle_mouse", control = "ESCAPE"}
+  
+  if input_action_just_pressed{name = "toggle_mouse"} then
+    ctx.udata.capture = not ctx.udata.capture
+  end
+
+  player:tick(ctx)
+  -- draw_camera{position = Vector3(0, 1, 0), direction = Vector3.FORWARD}
+  -- draw ground
+  local q = util.create_plane_quad(Vector3(0, 0, 0), Vector3.UP, 10)
+  local params = {
+    texture = "images/measure001a.png",
+    texture_region = { x = 0, y = 0, w = 512, h = 512 },
+  }
+  draw_quad(util.merge(q, params))
 end