# 1.02.06 (72389) Mar 4, 2013 # 1.02.05 (72381) Mar 3, 2013 # 1.02.04 (72377) Mar 1, 2013 # 1.02.03 (72374) Mar 1, 2013 Home screen improvements # 1.02.02 (72362) Mar 1, 2013 Switched to a branch for level-selection & tab mockup development for mobile/touch devices Re-enabled clouds for next deploy # 1.02.01 (72256) Feb 21, 2013 Created a development version without clouds # 1.02.00 (72090) Feb 8, 2013 > Changed the simulation speed and max object speed to make extreme forces easier to visualize # 1.01.03 (72078) Feb 7, 2013 Increased the max speed by a factor of 2 # 1.01.02 (72075) Feb 7, 2013 Increased simulation speed from 1/4 to 1/2 of original # 1.01.01 (72073) Feb 7, 2013 Decreased simulation speed without changing clock rate # 1.01.00 (72071) Feb 7, 2013 Updated screenshot > Added a new tab "Acceleration Lab" # 1.00.12 (72049) Feb 7, 2013 Increased the clock speed by a factor of 4 to undo the problems introduced in 1.00.10 # 1.00.11 (72044) Feb 7, 2013 Temporarily remove clouds as a performance test # 1.00.10 (71855) Jan 24, 2013 Tabs 2-4: Slow down the clock by a factor of 4 to make extreme forces easier to visualize # 1.00.09 (71849) Jan 24, 2013 Fixed a bug that prevented the mystery object from moving when it was the single item in a stack # 1.00.08 (71813) Jan 21, 2013 Improved location of "sum of forces" text location to move it away from the accelerometer # 1.00.07 (71780) Jan 17, 2013 If the stack is too high (contains 2 objects and one is fridge or man), move the sensors to the side Added labels for "-20" "20" under the tickmarks of the accelerometer Changed "0" under accelerometer from 12 point font to 15 point font Space things more evenly in the "acceleration" tab Added a handle to the water bucket # 1.00.06 (71754) Jan 16, 2013 Speed up water responsiveness Fixed: Bucket water shouldn't move while in the toolbox Improved the water color The bucket is so big that it should replace both the trash can and the gift on the acceleration tab. Moved water level lower so it can be seen better under the arrows # 1.00.05 (71719) Jan 15, 2013 Added water bucket Tweaked scaling to get first tick to line up with 10 m/s/s in accelerometer # 1.00.04 (71004) Dec 5, 2012 # 1.00.03 (70999) Dec 5, 2012 # 1.00.02 (70997) Dec 5, 2012 # 1.00.01 (70978) Dec 5, 2012 Added accelerometer tab and check box # 1.00.00 (69441) Oct 23, 2012 Updated screenshot again to remove developer menu and added credits Updated screenshot Removed unused rocks images and code # 0.00.56 (69194) Oct 13, 2012 Tab 3: Only show the gravel specks within the brown surface stroke # 0.00.55 (69192) Oct 13, 2012 Tab 3: Made 15% more gravel specks at max and 0 at 10% of max friction # 0.00.54 (69185) Oct 12, 2012 Tab 3: Made the gravel specks 1x1 pixel # 0.00.53 (69183) Oct 12, 2012 Tab 3: Moved the gravel up a bit so they are slightly above ground Tab 3: Added white gravel specks in a ratio of about 1:5 to the other specks # 0.00.52 (69178) Oct 12, 2012 Tab 2-3: Fixed: the puller doesn't fall down when hitting max speed moving to the right # 0.00.51 (69176) Oct 12, 2012 Tab 2-3: Fixed scaling of force arrow icon in the control panel Tab 2-3: Fixed: place object > pause > apply force > play > get up to some speed > pause > remove object. The speedometer stays at the last speed, but should go to zero Tab 2-3: Updated bounds for slider when partly grayed out # 0.00.50 (69172) Oct 12, 2012 Tab 1: Increased cart weight by a factor of 10 Tab 1: Increased puller forces from by a factor of 5 Tab 1: Increased puller masses from {200,400,600} to {400,600,1000} Newtons Tab 1-3: Reduced force arrow nodes by a factor of about 5 Tab 3: Added gravel texture as a function of friction # 0.00.49 (69169) Oct 12, 2012 Tab 2-3: Changed max speed from 9.5 m/s to 10 m/s Tab 2-3: Changed max applied force to 500N Tab 2-3: Added factor of gravity with g=10.0 m/s/s # 0.00.48 (69148) Oct 12, 2012 Tab 2-3: Always show pusher # 0.00.47 (69125) Oct 11, 2012 Tab 2-3: Fixed: Bug with force slider. Place object > pause sim > move force slider > play sim > remove object. The force slider will stay in place. It should go to zero. Tab 3: Moved "sum of forces" above "values" # 0.00.46 (69120) Oct 11, 2012 Tab 2-3: Added half ticks between major ticks Tab 2-3: Label min/max as "-100" and "100" Tab 2-3: Get rid of "step" button Tab 2-3: Start with "forces" on by default Tab 2: Renamed "forces" to "force" Tab 2-3: Only show the pusher if the user has changed the slider control once Tab 1: Moved "sum of forces" to the top of the control panel Tab 2-3: Dropping an object above ground moves it to the center # 0.00.45 (69094) Oct 10, 2012 Tab 2: Background motion stops when all items removed from skateboard # 0.00.44 (69092) Oct 10, 2012 Tab 1: Extend the grass even when the window is at an extremely wide aspect ratio Tab 2-3: Removed icon for "sum of forces" checkbox Tab 2-3: Added arrow icons next to force and sum of forces checkboxes Tab 2-3: Removed the rewind button Tab 3: Stop the background motion if all items removed from the stack # 0.00.43 (69006) Oct 8, 2012 Tab 2-3: Made clouds repeat indefinitely # 0.00.42 (69004) Oct 8, 2012 Tab 2-3: Fixed: Sum of forces doesn't update when paused and changing the applied force # 0.00.41 (68987) Oct 8, 2012 Tab 2-3: Fixed: Pusher can push into blocks if you: Apply force until pusher falls down > pause sim > move force slider into white area > press play. # 0.00.40 (68980) Oct 8, 2012 Tab 2-3: Prevent objects from sinking into the skateboard or previous object if moved quickly onto the stack # 0.00.39 (68978) Oct 8, 2012 Tab 2: Show pusher as standing if he is in the way of the skateboard # 0.00.38 (68974) Oct 8, 2012 Tab 1: Make pullers stay in pulling position when paused Tab 1: Changed "stop" to "pause" # 0.00.37 (68922) Oct 7, 2012 Tab 2-3: Only enable the step button when the sim is paused Tab 2-3: Fixed: Applied force slider doesn't always become enabled when it should # 0.00.36 (68696) Oct 2, 2012 Tab 2-3: Moved gift ribbon to the side Tab 2-3: Characters raise their hands when something can be stacked on them # 0.00.35 (68679) Oct 2, 2012 Tab 2-3: Allow stacking any objects on each other # 0.00.34 (68674) Oct 1, 2012 Tab 2-3: If the user changes the applied force slider using the knob while paused, the value won't reset when unpaused Added sim sharing messages Tab 2-3: Made it so that clicking on the speedometer icon in the control panel toggles the checkbox as well # 0.00.33 (68646) Oct 1, 2012 Accommodate larger text for other languages Resize "Blue Wins!" and "Red Wins!" text if it is too big in other languages Tab 1-3: Added internationalization # 0.00.32 (68636) Oct 1, 2012 Tab 2-3: Removed the rocks Tab 3: Made it so that the friction vector does not move its tail end to the center # 0.00.31 (68632) Oct 1, 2012 Tab 2: Fixed: when you apply force to slow the skateboard down and then let go, the little figure goes behind whatever is on the skateboard but in front of the skateboard itself Tab 2-3: When friction force arrow overlaps applied force arrow, show the friction arrow text below the friction arrow # 0.00.30 (68627) Oct 1, 2012 Tab 2-3: Move the force arrow text when it intersects Tab 2-3: Moved "Masses" check box above "Speed" checkbox Tab 2-3: Added mountains back in # 0.00.29 (68619) Oct 1, 2012 Tab 2-3: Temporarily removed mountains # 0.00.28 (68614) Oct 1, 2012 Tab 2-3: Moved all rocks to above the toolboxes # 0.00.27 (68612) Oct 1, 2012 Tab 2-3: Added mountains # 0.00.26 (68607) Oct 1, 2012 Tab 3: Fixed: No longer can move object to the left. Flicker is happening there too. Tab 2-3: Made rocks smaller and more faded out # 0.00.25 (68600) Sep 29, 2012 Tab 3: Fixed: The fallen pusher doesn't always stay fallen long enough Tab 3: Update the friction force while changing mass or slider value while paused Tab 3: Fixed: Force arrows flicker when friction > applied force for a moving object Tab 3: Reduced coefficient of friction so that the fridge can be moved at the default setting Tab 2-3: Fixed: When entering text, the slider knob doesn't move # 0.00.24 (68590) Sep 29, 2012 Tab 2-3: Moved rocks underground and randomized size and locations # 0.00.23 (68587) Sep 28, 2012 Tab 2-3: make it so rock doesn't overlap the character on startup Tab 2-3: Fixed: The force slider does not snap back to zero. The force does go to zero, but the handle doesn't snap back Tab 2-3: Added rocks to the background Tab 1: Added a sound checkbox Tab 1: Fixed: Return button should disappear after being pressed Tab 2: Moved up objects so they sit on the skateboard without overlapping it too much Tab 1: Added golf clap audio # 0.00.22 (68548) Sep 28, 2012 Tab 2-3: Add some padding on either side of the "?" for the gift to make it easier to read Tab 2-3: Don't allow stacking on garbage can or gift Tab 2: Fixed: pusher's hands press into the man by 20px or so Tab 3: Made "Sum of Forces" unchecked by default Tab 2-3: Brightened the pusher images to help "friction force" text be more readable against the pusher. Tab 2-3: Added new crate image Tab 2-3: Made the friction slider change the coefficient of friction instead of the friction force # 0.00.21 (68535) Sep 27, 2012 Tab 2-3: indent force-related items, like "values" and "sum of forces" Tab 2-3: Increased font size and look for mass readouts Tab 2-3: Rounded off object masses Tab 1: Changed "Restart" to "Return" Tab 2-3: Gray out the inaccessible part of the slider for at least 1 second, to prevent flickering behavior especially on Tab 3 Tab 2-3: Gray out the part of the slider that is inaccessible Tab 2-3: Fixed: Correctly show fallen pusher when velocity exceeded Tab 2-3: Clamp slider knob when value exceeded # 0.00.20 (68501) Sep 27, 2012 Tab 2-3: Show "?" for mystery mass Tab 2-3: Show masses for objects Tab 1-3: Removed "Show" from control panel titles Tab 2-3: Only allow to stack on items with a flat top Tab 2-3: Limit stack size to 3 things Tab 2-3: Removed boy character and replaced with man Tab 2-3: Fixed: pusher looks fallen sometimes when he should be standing facing front Tab 2-3: Updated image for fallen pusher # 0.00.19 (68488) Sep 26, 2012 Tab 2-3: Have the characters stand in the toolbox and sit in the play area Tab 2-3: fixed: not all objects should face the direction of applied force # 0.00.18 (68484) Sep 26, 2012 Tab 2-3: Sitting characters face the direction of the applied force # 0.00.17 (68481) Sep 26, 2012 Tab 2-3: Switched to sitting characters Tab 2-3: Made garbage can 2/3 of its original size Tab 3: Gray out "sum of forces" checkbox when "forces" not selected Tab 2-3: Rescaled speedometer velocity to align with max velocity due to strobe effect # 0.00.16 (68476) Sep 26, 2012 Tab 2-3: Fixed: Speedometer size changes when first object dropped on stack. Tab 2-3: To make sure pusher hands reach the crate: made 20% larger crate, 10% smaller pusher Tab 2-3: Added more objects: characters from balancing act, trash can, gift-wrapped present Tab 2-3: Added an (empty) toolbox on the right Tab 2-3: Wired up play/pause/rewind/step buttons Tab 2-3: Show the pusher as fallen over when strobe speed exceeded Tab 1-3: For single character text (9N and lower), show vector value below the name Tab 1-3: Reduced the arrow font slightly so that "10N" will fit inside the arrow, also changed the location slightly Tab 1-3: Rescale the vectors so that they use the same scale factor in all tabs, and fit on the screen on tab 3 Tab 1: Play a victory sound when a flag is shown Tab 1-3: Changed Applied force and Sum of forces colors based on NP recommendation Tab 3: Fixed: friction force should not be able to make the object move backwards Tab 3: separate arrow tails for friction vs applied Tab 3: Added friction to model Tab 3: Object has to overcome friction before starting to move Tab 3: Show friction force and sum of forces # 0.00.15 (68451) Sep 25, 2012 Tab 1: Make flag wave Tab 1: Moved the vectors and labels all down by 25px to make room for the flag at the top center Tab 1: Made force vector colors slightly brighter and bolder Tab 1: Move toolboxes so they are vertically centered in the earth # 0.00.14 (68378) Sep 25, 2012 Tab 1: Fixed: When attaching a puller while the rope is moving, they do not change their pose. Tab 1: Show a flag after game complete Tab 1: Allow addition/removal of pullers after pressing "go" Tab 1: Added toolboxes and brown earth # 0.00.13 (68350) Sep 25, 2012 # 0.00.12 (68335) Sep 25, 2012 # 0.00.11 (68288) Sep 24, 2012 Added new images for buttons # 0.00.10 (68055) Sep 17, 2012 Fixed: Dragging doesn't work when screen resized Show "Sum of forces = 0" instead of blank Align the images when below the grass. Adjusted vertical position of the pullers with respect to the grass # 0.00.09 (68047) Sep 17, 2012 Fixed: puller nodes weren't always draggable after "restart" Increased cart speed leave "restart" button showing after "stop" pressed # 0.00.08 (68043) Sep 17, 2012 Don't allow dragging if the system is moving or completed make the force vectors transparent if in "complete" mode # 0.00.07 (68041) Sep 17, 2012 # 0.00.06 (64706) Jun 6, 2012 # 0.00.05 (64649) Jun 4, 2012 # 0.00.04 (64645) Jun 4, 2012 Flattened atan in mode3 # 0.00.03 (64629) Jun 4, 2012 Increased acceleration Added mode 4 # 0.00.02 (64614) Jun 4, 2012 Started mode 2 motion # 0.00.01 (64605) Jun 4, 2012 Added project for forces-and-motion-basics