mg_msx_faq:corner_boosting [Metal Gear Speedrunners]

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=====MG MSX Corner Boosting=====
In Metal Gear, you can only move in one of the 4 cardinal directions (Up, Right, Down, Left) - no in between movements are possible.

However there is one exception, on corners of boxes, walls etc you can be boosted to the side - allowing you to keep moving forward but on the same frame also additionally be pushed to the side. If well applied, this allows for saving single frames per successful execution. For this there are some requirements to be met depending on which axis you're moving and which side of Snake needs to be boosted.

===== The rules of boosting =====
Rule 1: on a vertical axis it's easier\\ 
to be pushed to the right going up or\\ 
going down a vertical line\\ 

Rule 2: on a vertical axis it's harder\\ 
to be pushed to the left going up or\\ 
goign down a vertical line\\ 

Rule 3: our center of body can align\\ 
with the vertical axis for right pushes\\ 
for left pushes, we have to be one step\\ 
(2 pixels) further left\\ 

Rule 4: for entering trucks our head needs to\\ 
touch the tarp of the truck, else we can't enter\\ 

==== Vertical Boosting ====
=== Left Side ===
If Snake visually is centered on the vertical pixel line with a box or wall to his left, he will successfully be boosted to the right going up.
Successful example\\ 
{{:metal_gear:00-1f-success.jpg?400|}}

Failed example\\ 
{{:metal_gear:00-1f-failed.jpg?400|}}

=== Right Side ===
If Snake visually is with his head left of a box/wall and his right shoulder is on the box/wall, he will be boosted to the left going up.

Successful example\\ 
{{:metal_gear:01-1f-success.jpg?400|}}

Failed example\\ 
{{:metal_gear:01-1f-failed.jpg?400|}}

==== Horizontal Boosting ====
Going left or right the same behaviour applies

=== Top Side ===
If the leading shoe (in this example Snake's left shoe) is over the box, you can box boost.
Successful example\\ 
{{:metal_gear:02-1f-success.jpg?400|}}

Failed example\\ 
{{:metal_gear:02-1f-failed.jpg?400|}}

=== Bottom Side ===
If the leading shoe (in this example, Snake's right shoe) is underneath the box, you can box boost.
Successful example\\ 
{{:metal_gear:03-1f-successful.jpg?400|}}

Failed example\\ 
{{:metal_gear:03-1f-failed.jpg?400|}}

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