physics : a wall that allows only certain characters

Solar2D General Questions/Discussion
#1

hi,

How do you have a wall that allows you to pass some characters and block others with physics ?

I would do this :

local character=.... --can pass the wall physics.addBody( character, { density=1, friction=1, bounce=0.3,shape=pentagonShape } ) character.isFixedRotation = true local characterRed=... -- cannot pass the wall physics.addBody( characterRed, { density=1, friction=1, bounce=0.3,shape=pentagonShape } ) characterRed.isFixedRotation = true local wall = display.newRect(0, 20, 20, 460 )                    physics.addBody( wall, "static", borderBodyElement )

  thanks for your help :wink:

#2

 You can try Physic Collision Filter here:

 https://docs.coronalabs.com/guide/physics/collisionDetection/index.html

 Eddy roaminggamer has made a plugin to help you do that easier. Check it here:

 https://forums.coronalabs.com/topic/59222-collision-calculator/

 Or it you find out that is difficult to use a plugin, pm me and I will send you a simple lua module to just require and run.

#3

I’m definitely going to start calling him “Eddy” now.

#4

Yeah, but you need to use the ‘ie’ ending, not ‘y’  that way it’s like the '50s daddy-o

#5

Thanks it’s works :slight_smile:

But i’m also interrested by your module khanh.dq if you agree.

#6

  That’s okay. I have written a module myself base on Eddy’s idea ( Thank him again ). It’s simple and I just don’t want my Corona loads plugin everytime it runs :frowning:

  I check with my project and it works well. Hope you’re too. 

  Sample code:

local physicFilter = require "PhysicCollisionFilter" physicFilter.addNewTypes("Player","Enemy","Platform","Item","Npc","EnemyFire") physicFilter.addCollisionRules("Player",{"Enemy","Platform","Item","Npc","EnemyFire"}) physicFilter.addCollisionRules("Enemy",{"Platform"}) physicFilter.addCollisionRules("EnemyFire",{"Platform"}) physicFilter.dump() print("--------------------------------") print("Check player collision filter") for key,value in pairs(physicFilter.getCollisionFilter("Player")) do print(string.format("%-20s = %4d",key,value)) end
#7

@Khanh.dq,

I guess it was probably a good learning experience to reverse engineer my code, but this is one of those case where you could have downloaded it. 

While I prefer folks use the plugin, they can get the library directly here: 

http://github.com/roaminggamer/RGCC/

#8

  Thank Eddy. I just couldn’t find your code, so must wrote it myself because I try to avoid using plugins to get rid of waiting time :frowning:

  It’s nice to learn from others  :slight_smile:

#9

 You can try Physic Collision Filter here:

 https://docs.coronalabs.com/guide/physics/collisionDetection/index.html

 Eddy roaminggamer has made a plugin to help you do that easier. Check it here:

 https://forums.coronalabs.com/topic/59222-collision-calculator/

 Or it you find out that is difficult to use a plugin, pm me and I will send you a simple lua module to just require and run.

#10

I’m definitely going to start calling him “Eddy” now.

#11

Yeah, but you need to use the ‘ie’ ending, not ‘y’  that way it’s like the '50s daddy-o

#12

Thanks it’s works :slight_smile:

But i’m also interrested by your module khanh.dq if you agree.

#13

  That’s okay. I have written a module myself base on Eddy’s idea ( Thank him again ). It’s simple and I just don’t want my Corona loads plugin everytime it runs :frowning:

  I check with my project and it works well. Hope you’re too. 

  Sample code:

local physicFilter = require "PhysicCollisionFilter" physicFilter.addNewTypes("Player","Enemy","Platform","Item","Npc","EnemyFire") physicFilter.addCollisionRules("Player",{"Enemy","Platform","Item","Npc","EnemyFire"}) physicFilter.addCollisionRules("Enemy",{"Platform"}) physicFilter.addCollisionRules("EnemyFire",{"Platform"}) physicFilter.dump() print("--------------------------------") print("Check player collision filter") for key,value in pairs(physicFilter.getCollisionFilter("Player")) do print(string.format("%-20s = %4d",key,value)) end
#14

@Khanh.dq,

I guess it was probably a good learning experience to reverse engineer my code, but this is one of those case where you could have downloaded it. 

While I prefer folks use the plugin, they can get the library directly here: 

http://github.com/roaminggamer/RGCC/

#15

  Thank Eddy. I just couldn’t find your code, so must wrote it myself because I try to avoid using plugins to get rid of waiting time :frowning:

  It’s nice to learn from others  :slight_smile: