User:MigratingCoconut/rad rework

Contamination

Contamination now mostly happens by touching radioactive material, the contamination works similarly to contracting diseases by touch, using the clothes' permeability, but the clothes themselves also get contaminated.
Radiation no longer contaminates most things, but this doesn't mean areas that don't look green are safe.
An inherently radioactive object will contaminate other objects when:

• It hits them
• It is hit by them
• It is stored in the same container
• It is on the floor with them(very low chance every process tick).

Wave Spread

Waves now spread in a square, with each step the amount of rads each tile receives is the average of the adjacent tiles from the previous steps, multiplied by the ratio between the amount of tiles in the current step and the one in the previous step.
Of important note to power production: The wave affects the source tile at 1/4 strength and the surrounding tiles at the remaining strength divided by 8.

Radiation types

Radiation now comes in 3 different types:

• Alpha - Easily blocked by most things, emitted mostly by uranium
• Beta - Easily blocked by airlocks, walls, girders and grilles. emitted mostly by the nuke core and plasma windows charged by Gamma radiation
• Gamma - Emitted by the SM and Singularity, isn't blocked well by most things other than plasma windows and reinforced walls.

Power Production

The Supermatter and Singularity output Gamma radiation, which is converted to Beta radiation by windows made with plasma materials and amplified in the process.
Radiation collectors absorb 20% of the Gamma radiation that hits them and 70% of the Beta radiation.

Windows

Windows multiply the radiation they convert, and different windows have different multipliers and absorb a different portion of the radiation, with fulltile windows absorbing more than directional windows.
Reinforced plasma glass is worst, normal plasma glass is better while plastitanium glass is best:

Material	Directional Window Rad Multiplier	Directional Window Gamma Absorption	Full Window Rad Multiplier	Full Window Gamma Absorption
Reinforced plasma glass	1.5	60%	2.2	84%
Plasma glass	2	60%	2.6	84%
Plastitanium glass	2.5	60%	3	84%

Window Layouts

The general rule to follow when setting up your windows and collectors is this: Get your windows as close to the gamma source as possible, and the collectors as close to the windows as possible.
Aside from that, directional and fulltile windows have their advantages and disadvantages which you want to take advantage of when building your engine.

Directional Windows

Directional windows have the advantage of being able to exist on the same tile as a collector. This makes them take up less space and also allows the collector to gather radiation right at the source, which makes a big difference when the collector's threshold is a significant part of the radiation it absorbs
Directional windows absorb only 60% of the gamma radiation passing through them, so it's better to stack more than one on the same tile. Lastly, because a radiation wave only acts at 1/4 strength on the origin tile, it's better to build a second layer of collectors around the first to capture the rest of the radiation.

Fulltile Windows

Fulltile windows have the advantages of producing more beta radiation for the gamma they absorb, absorbing 84% of the gamma radiation that passes through them and creating fewer radiation waves, which means the collector collects radiation in fewer instances, reducing it by less
Their main disadvantage are being less space efficient, and not being able to exist on the same tile as collectors. They are best placed inside the engine chamber, but for that you'll need to cleverly rearrange the vents and scrubbers, as well as the cooling loop.