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ioi_xd

What's the best way to execute a random event?

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I'm trying to make it so then when I shoot the enemy object, it respawns at a random part of the map in a different color. I got the color thing set, but I have one problem: Due to the way the playfield is set up, I can only have the player come out from four specified areas of the map.

6nE21fp.png

I have worked out some code using "rand", but it doesn't seem to be working.

 d = 0

 [...]

 if collision(player0,missile1) then d = rand
 if rand < 4 then d = 4

 if d = 1 then player0x = 80 : player0y = 10
 if d = 2 then player0x = 140 : player0y = 50
 if d = 3 then player0x = 85 : player0y = 90
 if d = 4 then player0x = 10 : player0y = 50

The missile doesn't seem to even affect the enemy, it just goes right through it.

Any idea on what I can do?

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You might want to do it like this instead:


   if !collision(player0,missile1) then goto __Skip_Respawn

   temp5 = rand

   if temp5 < 65 then then player0x = 80 : player0y = 10
   if temp5 > 64 && temp5 < 129 then player0x = 140 : player0y = 50
   if temp5 > 128 && temp5 < 193 then player0x = 85 : player0y = 90
   if temp5 > 192 then player0x = 10 : player0y = 50

__Skip_Respawn

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or

 

  ;  rand & 3 will be a random number 0..3
 
  if collision(player0, missile1) then d = rand & 3 : player0x = P0xrnd[d] : player0y = P0yrnd[d]
 
 
 
 
  data P0xrnd
  80, 140,  85,  10
end
 
  data P0yrnd
  10,  50,  90,  50
end
Edited by bogax

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