scenario first half

Author: ddorn

data/scenario.md

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+## Scenario and level design
+
+#### Intro - Done
+
+In the year 20XX, the butterfly
+overpopulation problem has
+obviously reached critical mass.
+The military has decided to intervene.
+Your mission is simple: defeat all the
+butterflies before the world ends.
+But look out for Big Butta, king of
+the butterflies...
+
+#### Tuto
+
+We need a simple was to show the controls without tooo much text
+Should not be too long to go through as controls are simple and usual
+
+Explain
+ - Note: The game is played better with a gamepad
+ - Basic movement (WASD, arrows or gamepad)
+ - Fire (space, enter, gamepad trigger, gamepad A or B)
+Don't explain how to switch weapons as there is only one available
+
+#### Level 1 - Done
+
+**Title**: The Butterflies Awaken
+
+A few butterflies spawn in simple structures,
+but very soon they start to organise themselves
+into more complexe and dense structures
+At the end the player faces a wall of non moving butterlies
+
+#### Level 2
+
+**Title**: The Rise of Butterfly
+
+A few dense structures and then butterflies start
+moving in increasingly complexe shape.
+Finally a Machine Gun is given to the player that allows
+it to destrow the final wall. 
+When the machine Gun is give a small tuto
+ tells how to change weapons
+
+#### Level 3
+
+**Title**: Attack of the Butterflies
+
+One night, the butterflies gathered to stop you.
+A very dense level were the Machine will be of 
+great use, with heart powerup. Quite lengthy, 
+with new structures and more butterflies than ever.
+Over time, attacks are less dense but butterflies move faster
+Towards the end, the player is given the Laser Gun 
+to kill butterflies before they can see him.
+
+#### Level 4
+
+**Title**: The Butterfly Menace
+
+After the mass killings, butterflies went 
+hiding in the desert where they will try to avoid 
+the player. 
+Very sparse and spread out waves at first,
+they then come in a bigger number and avoiding better
+when the player is given Aiming bullets. 
+The rest of the level is then to enjoy the Aiming bullets
+
+#### Level 5
+
+**Title**: The Butterflies Strikes Back
+
+After their last beating,
+they put their hands on guns and 
+start to attack the player. 
+A few butterflies spawn first so 
+the player can learn to avoid bullets.
+The machine gun will be used a lot to avoid
+getting too many butterflies on the screen
+There should be some snipers (butterflies far from the crowd)
+
+#### Level 6
+**Title**: A new Butterfly
+
+#### Level 7
+**Title**: Revenge of the Butterfly
+#### Level 8
+**Title**: Return of the Butterfly
+#### Level 9
+**Title**: The Last Butterfly
+