Better-feeling physics constants and behaviors

vacation.p8

@@ -596,33 +596,33 @@ function toyphin:update()
 
  -- button handling
  if self.entered and not self.exiting then
-  if self.state.idle then
+  if y >= 61 and y <= 67 and dy < 1 and dy > -1 then
    if (btn(2)) then
     jump_splash(x)
-    dy=-4.125
+    dy=-3.8
    elseif (btn(3)) then
     dive_splash(x)
-    dy=4.125
+    dy=3.8
    end
   else
-   dy += (btn(3) and 0.1875 or 0) - (btn(2) and 0.1875 or 0)
+   dy += (btn(3) and 0.125 or 0) - (btn(2) and 0.125 or 0)
   end
  end
 
- if (y > 64) dy -= 0.375
+ if (y > 64) dy -= 0.3
- if (y < 64) dy += 0.375
+ if (y < 64) dy += 0.3
 
  local new_y = y + dy
  if new_y  <= 64 and y > 64 then
   -- surfacing
-  surfacing_splash(x, -dy, btn(2) and (dy > -4.125))
+  surfacing_splash(x, -dy, btn(2) and (dy > -3.8))
   if btn(2) then
    -- maybe boost
-   if dy > -4.125 then
+   if dy > -3.8 then
-    new_y = 64 + ((dy + y - 64)/dy * -4.125) 
+    new_y = 64 + ((dy + y - 64)/dy * -3.8) 
-    dy = -4.125
+    dy = -3.8
    else
-    dy = (dy - 4.125) / 2
+    dy = (dy - 7.6) / 3
    end
   else
    -- brake
@@ -632,19 +632,18 @@ function toyphin:update()
     dy = 0
    else
     dy /= 2
-    new_y = 32 + new_y/2
    end
   end
  elseif new_y >= 64 and y < 64 then
   -- landing
-  landing_splash(x, dy, btn(3) and (dy < 4.125))
+  landing_splash(x, dy, btn(3) and (dy < 3.8))
   if btn(3) then
    -- maybe boost
-   if dy < 4.125 then
+   if dy < 3.8 then
-    new_y = 64 - ((dy - y + 64)/dy * 4.125)
+    new_y = 64 - ((dy - y + 64)/dy * 3.8)
-    dy = 4.125
+    dy = 3.8
    else
-    dy = (4.125 + dy) / 2
+    dy = (7.6 + dy) / 3
    end
   else
    --brake
@@ -654,21 +653,20 @@ function toyphin:update()
     dy = 0
    else
     dy /= 2
-    new_y = 96 - new_y/2
    end
   end
  end
  y=new_y
 
  local wet, st = y > 64, phinstate_error
- if dy < -1.5 then
+ if dy < -2.5 then
   st = wet and phinstate_rise_full or phinstate_jump_full
- elseif dy <= -0.5 then
+ elseif dy <= -1.5 then
   st = wet and phinstate_rise_wax or phinstate_jump_wane
- elseif dy < 0.5 then
+ elseif dy < 1.5 then
   -- handle idle special case later
   st = wet and phinstate_return or phinstate_crest
- elseif dy <= 1.5 then
+ elseif dy <= 2.5 then
   st = wet and phinstate_dive_wane or phinstate_fall_wax
  else
   st = wet and phinstate_dive_full or phinstate_fall_full