mirror of
https://github.com/codeninjasllc/codecombat.git
synced 2024-12-05 13:21:10 -05:00
50 lines
2.2 KiB
CoffeeScript
50 lines
2.2 KiB
CoffeeScript
# http://codingowl.com/readblog.php?blogid=124
|
|
module.exports.CollisionCategory = class CollisionCategory
|
|
@className: "CollisionCategory"
|
|
constructor: (name, @superteamIndex=null, @collisionSystem) ->
|
|
# @superteamIndex is null for "none", "obstacles", and "dead".
|
|
# It's 0 for "ground", "air", and "ground_and_air" units with no superteams.
|
|
# It's 1, 2, or 3 for the superteams it gets after that. We can only have 16 collision categories.
|
|
@ground = name.search("ground") isnt -1
|
|
@air = name.search("air") isnt -1
|
|
@name = CollisionCategory.nameFor name, @superteamIndex
|
|
@superteamIndex ?= 0 if @ground or @air
|
|
@number = 1 << @collisionSystem.totalCategories++
|
|
if @collisionSystem.totalCategories > 16 then console.log "There should only be 16 collision categories!"
|
|
@mask = 0
|
|
@collisionSystem.allCategories[@name] = @
|
|
for otherCatName, otherCat of @collisionSystem.allCategories
|
|
if @collidesWith otherCat
|
|
@mask = @mask | otherCat.number
|
|
otherCat.mask = otherCat.mask | @number
|
|
|
|
collidesWith: (cat) ->
|
|
# "none" collides with nothing
|
|
return false if @name is "none" or cat.name is "none"
|
|
|
|
# "obstacles" collides with everything; could also try letting air units (but not ground_and_air) fly over these
|
|
return true if cat.name is "obstacles" or @name is "obstacles"
|
|
|
|
# "dead" collides only with obstacles
|
|
return cat.name is "obstacles" if @name is "dead"
|
|
return @name is "obstacles" if cat.name is "dead"
|
|
|
|
# "ground_and_air_<team>" units don't hit ground or air units on their team (so missiles don't hit same team)
|
|
sameTeam = @superteamIndex and cat.superteamIndex is @superteamIndex
|
|
return false if sameTeam and @ground and @air
|
|
|
|
# actually, "ground_and_air<team>" units don't hit any ground_and_air units (temp missile collision fix)
|
|
return false if @ground and @air and cat.ground and cat.air
|
|
|
|
# "ground" collides with "ground"
|
|
return true if cat.ground and @ground
|
|
|
|
# "air" collides with "air"
|
|
return true if cat.air and @air
|
|
|
|
# doesn't collide (probably "ground" and "air")
|
|
false
|
|
|
|
@nameFor: (name, superteamIndex=null) ->
|
|
return name unless name.match("ground") or name.match("air")
|
|
name + "_" + (superteamIndex or 0)
|