Tone down screen shake

src/constants.js

@@ -117,7 +117,7 @@ export const PARTICLE_POWER_REDUCTION_FACTOR = 15;
 export const PARTICLE_WIND_REDUCTION_FACTOR = 3;
 export const PARTICLE_FADE_AMOUNT = 1;
 
-export const MAX_EXPLOSION_SHAKE_FACTOR = 60;
+export const MAX_EXPLOSION_SHAKE_FACTOR = 45;
 export const EXPLOSION_SHAKE_REDUCTION_FACTOR = 7;
 
 export const FONT_WIDTH = 3;