# Contraptions Concept

## Progression

- Assemble wooden contraption inside a rectangle of frames
  - Move items with contraption
  - Rotate a contraption
  - Take a contraption to water
    - Use a shovel to propel a contraption on water
  - Craft a wooden wheel
    - Attach wheels to a contraption
    - Construct a wooden rail (gravel + staff?)
      - Push a contraption or contraption on a rail
  - Attach a handle to a contraption
    - Pull a contraption using a handle
  - Assemble a hinged contraption
    - Rotate a hinged contraption using a handle
  - Assemble a contraption inside a cuboid of lode frames
    - Craft a lode wheel
      - Construct a lode rail (gravel + lode rod?)
      - Build a self-propelled contraption
      - Ride a contraption going full speed

## Materials

### Contraption Tiers

- Wooden: Plank, Log
- ???

### Ground

Different types of ground apply different amount of friction onto a contraption, slowing it down. These are just some rough guessed values to play around with.

- dirty: 2
- plank: 1
- cobble: 1
- smooth: 0.5
- Tarstone: 0.3
- Water: 0.4
- Wooden Rail: 0.5
- Lode Rail: 0.2

## Details

### Assemble wooden contraption inside a rectangle of frames

```
++++
+PP+   + = Wooden Frame
+PP+   P = Plank
+PP+   (Pummel frame with hammer to complete.)
++++
```

A contraption is a connected set of nodes that can be pushed by players to move it. Multiple players actively pushing reduces the cooldown between each push. Larger contraptions are more difficult to push.

contraptions are affected by gravity.

contraptions will drag with them any "pushable" nodes (such as items) directly above them. If a contraption is pushed underneath an overhang and items can't follow, they will fall off.

### Turn a contraption

???

Plaforms can turn gradually, their "forward" direction changing to an angle not perfectly aligned with the grid.

```
LLLL  LLL
RRRR  RRRL  LL
         R  RRLL
              RR
                  L
                  RL
                   RL
                    RL
                     R

                      RL
                       RL
                        RL
                         RL

                          RL
                          RL
                           RL
                           RL

                           RL
                           RL
                           RL
                           RL
```

### Craft a wheel

???

### Attach wheels to a contraption to create a cart

```
WPPW   P = Wooden contraption
 PP    W = Wooden Wheel
WPPW   (Pummel wheel into contraption to complete.)
```

A wheeled contraption is able to build up momentum, loosing it due to passive speed loss and friction. Different surfaces have different amounts of friction.