A car crash! Oh no! Oh Yeah! Let's have some fun with this one! We'll use the Benny character for this mayhem:
1. Load a new blank scene. Select the Actor tab and click on the Avatar button.
2. Double-click on the Benny character to load him into the scene. Any character will work.
3. Load the Infinite Plane from the physics props folder into the workspace.
4. Load the Jeep from the Prop root folder into the workspace.
5. Arrange the objects as in the following image:
6. Load the Ball_001 prop from the 3D Blocks folder into the scene and scale it up along its Z Axis to around 146.
7. Position the ball prop around Benny as shown in the following image. It doesn't have to be exact, just make sure the curve of the ball is outside of his body:
8. With the Benny character selected, click on the Pick Parent button in the Linkage section on the right side menu and select the ball to link Benny to the ball.
9. Load Box_001 prop into the workspace.
10. Scale the box to X= 187.8, Y=207.4, Z=47.4 and place it as in the following image:
11. Use the Pick Parent button to attach the new box prop to the jeep.
12. Select the jeep, right-click on the jeep and choose Move_Forward from the Move command. Select a spot behind the Benny character that will cause the jeep to impact the character when it drives off.
13. Return the time scrubber to the first frame if it's not already there.
14. Click on the Physics Settings button or press Shift + F9.
15. Select Ball_001, activate the physics and set its state to Frozen and the Bounding Type to Self Mesh.
16. Choose the Box_001 prop and click on the Active Physics checkbox and set the state to Kinematic and Bounding Type to Self Mesh.
The following image shows the meshes to this point:
17. Save the file.
19. Select the box and turn it's opacity down to zero to render it invisible. Do the same for the ball. The opacity slider is located in the right side menu when the prop is selected.
20. Select the Ball_001 prop and change the Bounding Type to Box then rerun the simulation to see the difference.
The following image shows the Benny character colliding with the jeep when using a box bounding type:
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We used the ball prop to act as a collision dummy for the character and used a box prop for the same purpose on the jeep. While props can act as their own dummy, we needed to use the built-in Move feature of the Jeep, so using a dummy allowed us to animate the jeep while having an impact object on the front of the jeep without cancelling out the built-in move scripting.
We pushed the collision dummy out and down low on the jeep to force the Benny character into the air. If you find that the character is crashing through the top of the jeep, then add another box to that part of the jeep, size it to cover the area of penetration, set it up like the other box, then attach it to the jeep. Use as many dummies as necessary.