New hands "glow" effect for Shadow Combat

game/modules/tome/data/birth/classes/rogue.lua

@@ -16,6 +16,7 @@
 --
 -- Nicolas Casalini "DarkGod"
 -- darkgod@te4.org
+local Particles = require "engine.Particles"
 
 newBirthDescriptor{
 	type = "class",
@@ -109,6 +110,13 @@ newBirthDescriptor{
 		"#LIGHT_BLUE# * +3 Magic, +0 Willpower, +3 Cunning",
 		"#GOLD#Life per level:#LIGHT_BLUE# +0",
 	},
+	birth_example_particles = {
+		function(actor) if core.shader.active(4) then
+			local slow = rng.percent(50)
+			local h1x, h1y = actor:attachementSpot("hand1", true) if h1x then actor:addParticles(Particles.new("shader_shield", 1, {img="shadowhands_01", dir=180, a=0.7, size_factor=0.4, x=h1x, y=h1y-0.1}, {type="flamehands", time_factor=slow and 700 or 1000})) end
+			local h2x, h2y = actor:attachementSpot("hand2", true) if h2x then actor:addParticles(Particles.new("shader_shield", 1, {img="shadowhands_01", dir=180, a=0.7, size_factor=0.4, x=h2x, y=h2y-0.1}, {type="flamehands", time_factor=not slow and 700 or 1000})) end
+		end end,
+	},
 	power_source = {technique=true, arcane=true},
 	stats = { dex=3, mag=3, cun=3, },
 	talents_types = {

game/modules/tome/data/gfx/particles/shader_shield.lua

@@ -24,7 +24,7 @@ local g = g or 1
 local b = b or 1
 local a = a or 1
 
-return { blend_mode = blend and core.particles.BLEND_SHINY or nil, generator = function()
+return { blend_mode = blend and core.particles.BLEND_SHINY or nil, system_rotation = dir or 0, system_rotationv = 0, generator = function()
 	return {
 		trail = 0,
 		life = 10,

game/modules/tome/data/talents/cunning/shadow-magic.lua

@@ -30,7 +30,13 @@ newTalent{
 	getDamage = function(self, t) return 2 + self:combatTalentSpellDamage(t, 2, 50) end,
 	getManaCost = function(self, t) return 2 end,
 	activate = function(self, t)
-		return {}
+		local ret = {}
+		if core.shader.active(4) then
+			local slow = rng.percent(50)
+			local h1x, h1y = self:attachementSpot("hand1", true) if h1x then self:talentParticles(ret, {type="shader_shield", args={img="shadowhands_01", dir=180, a=0.7, size_factor=0.4, x=h1x, y=h1y-0.1}, shader={type="flamehands", time_factor=slow and 700 or 1000}}) end
+			local h2x, h2y = self:attachementSpot("hand2", true) if h2x then self:talentParticles(ret, {type="shader_shield", args={img="shadowhands_01", dir=180, a=0.7, size_factor=0.4, x=h2x, y=h2y-0.1}, shader={type="flamehands", time_factor=not slow and 700 or 1000}}) end
+		end
+		return ret
 	end,
 	deactivate = function(self, t, p)
 		return true