Gravity Gun update

changelog.md

@@ -3,6 +3,7 @@
 - Improved: Lambda no longer override the localization already existing in the game.
 - Improved: d2_coast_03: Give more supplies, hope this can help player fight with multiple gunships better.
 - Improved: d2_coast_03: Mission critical NPCs now have protection to prevent dying from a car accident.
+- Improved: The gravity gun punt has now an energy effect.
 - Fixed: Pickup SMG grenade showing wrong icon.
 - Fixed: d2_coast_03: G-Man and Oddssa stay in the balcony forever.
 - Fixed: d2_coast_03: Blocked a exploit where player can use it to skip the final scene.

entities/effects/lambda_physcannon_impact.lua

@@ -0,0 +1,111 @@
+local MAT_PHYSBEAM = Material("sprites/physbeam.vmt")
+local EFFECT_TIME = 0.01
+function EFFECT:Init(data)
+    local pos = data:GetOrigin()
+    local ent = data:GetEntity()
+    if not IsValid(ent) then return end
+    if ent:GetClass() ~= "weapon_physcannon" then return end
+    self.SourceEntity = ent
+    self.TargetPos = pos
+    self.DieTime = CurTime() + EFFECT_TIME
+    self.Color = ent:GetWeaponColor()
+    self.HasLight = false
+    local efSparks = EffectData()
+    efSparks:SetOrigin(pos)
+    efSparks:SetMagnitude(2)
+    efSparks:SetScale(2)
+    util.Effect("Sparks", efSparks)
+    local glowConvar = GetConVar("lambda_physcannon_glow")
+    if glowConvar:GetInt() > 0 then
+        self.EnableLights = true
+    else
+        self.EnableLights = false
+    end
+end
+
+function EFFECT:GetStartPos()
+    local ent = self.SourceEntity
+    local wepPos
+    local owner = ent:GetOwner()
+    if ent:GetOwner() == LocalPlayer() then
+        local vm = owner:GetViewModel()
+        if not IsValid(vm) then return end
+        local wepCenter = vm:GetAttachment(1)
+        wepPos = ent:FormatViewModelAttachment(wepCenter.Pos, true)
+        wepPos = wepPos - (wepCenter.Ang:Forward() * 10)
+    else
+        local wepCenter = ent:GetAttachment(1)
+        wepPos = wepCenter.Pos
+    end
+
+    return wepPos
+end
+
+function EFFECT:Think()
+    local ent = self.SourceEntity
+    if not IsValid(ent) then return false end
+    if ent:GetClass() ~= "weapon_physcannon" then return false end
+    local owner = ent:GetOwner()
+    if not IsValid(owner) then return false end
+    if CurTime() > self.DieTime then return false end
+    -- Emit light.
+    if self.EnableLights and self.HasLight == false then
+        local targetPos = self.TargetPos
+        local startPos = self:GetStartPos()
+        local dist = startPos:Distance(targetPos)
+        local color = self.Color
+        for i = 1, 3 do
+            local p = i / 3
+            local pos = LerpVector(p, startPos, targetPos)
+            local index = bit.rshift(i, 16) + i
+            local dlight = DynamicLight(index)
+            dlight.dietime = self.DieTime
+            dlight.pos = pos
+            dlight.r = color.r
+            dlight.g = color.g
+            dlight.b = color.b
+            dlight.brightness = 2
+            dlight.decay = 500
+            dlight.size = dist
+        end
+
+        self.HasLight = true
+    end
+
+    return true
+end
+
+function EFFECT:RenderBeam(startPos, endPos, seed)
+    local numSegments = 20
+    local frequency = 5 -- Adjust the frequency of the sine wave
+    local color = self.Color
+    local curTime = CurTime()
+    local range = 5
+    render.StartBeam(numSegments)
+    for i = 0, numSegments - 1 do
+        local t = i / numSegments
+        local pos = LerpVector(t, startPos, endPos)
+        if i > 0 then
+            local yOffset = math.sin(i + (seed * 10) + curTime * frequency) * range
+            local xOffset = math.cos(i + (seed * 20) + seed + curTime * frequency) * range
+            local zOffset = math.sin(i + (seed * 30) + seed + curTime * frequency * 0.5) * range
+            pos.x = pos.x + xOffset
+            pos.y = pos.y + yOffset
+            pos.z = pos.z + zOffset
+            pos = pos + VectorRand() * 0.2
+        end
+
+        render.AddBeam(pos, 5 + (math.random() * 5), 1, color)
+    end
+
+    render.EndBeam()
+end
+
+function EFFECT:Render()
+    local wepPos = self:GetStartPos()
+    render.SetMaterial(MAT_PHYSBEAM)
+    local targetPos = self.TargetPos
+    for n = 1, 5 do
+        self:RenderBeam(wepPos, targetPos, n)
+    end
+end

entities/weapons/weapon_physcannon.lua

@@ -1042,17 +1042,32 @@ function SWEP:GetLightBrightness()
         brightness = 0.5
     end
 
-    if self:GetEffectState() == EFFECT_HOLDING then
+    local efState = self:GetEffectState()
+    if efState == EFFECT_HOLDING then
         brightness = brightness * (2.5 + (math.sin(CurTime() * 100) * 0.12))
+    elseif efState == EFFECT_LAUNCH then
+        brightness = brightness * 2.5
     end
 
     return brightness
 end
 
+function SWEP:StopLights()
+    if self.ProjectedTexture ~= nil and IsValid(self.ProjectedTexture) then
+        self.ProjectedTexture:Remove()
+        self.ProjectedTexture = nil
+    end
+end
+
 function SWEP:UpdateGlow()
     if self:IsEffectActive(EF_NODRAW) == true then return end
     local glowMode = physcannon_glow_mode
-    if glowMode == 0 then return end
+    if glowMode == 0 then
+        self:StopLights()
+
+        return
+    end
+
     local curTime = CurTime()
     if curTime < self.NextGlowUpdate then return end
     local lightPos = self:GetLightPosition()
@@ -1653,14 +1668,14 @@ function SWEP:DoEffectLaunch(pos)
     ef:SetOrigin(endPos)
     ef:SetEntity(self)
     if CLIENT and IsFirstTimePredicted() then
-        util.Effect("PhyscannonImpact", ef)
+        util.Effect("lambda_physcannon_impact", ef)
     elseif SERVER then
-        util.Effect("PhyscannonImpact", ef)
+        util.Effect("lambda_physcannon_impact", ef)
     end
 
     if CLIENT then
         local blast = self.EffectParameters[PHYSCANNON_BLAST]
-        blast.Scale:Init(8.0, 64, 0.1)
+        blast.Scale:Init(8.0, 128, 0.3)
         blast.Alpha:Init(255, 0, 0.2)
         blast.Visible = true
     end
@@ -1895,26 +1910,27 @@ local render_StartBeam = render and render.StartBeam or nil
 local render_EndBeam = render and render.EndBeam or nil
 function SWEP:DrawBeam(startPos, endPos, width, color)
     color = color or Color(255, 255, 255, 255)
-    local len = endPos - startPos
-    local split = len / BEAM_SEGMENTS
+    local frequency = 5
+    local curTime = CurTime()
+    local range = 1
     for n = 0, BEAM_GROUPS - 1 do
+        local seed = n
         render_StartBeam(BEAM_SEGMENTS)
         for i = 0, BEAM_SEGMENTS - 1 do
-            local offset = Vector(0, 0, 0)
-            local pos
-            if i == 0 then
-                pos = startPos
-            elseif i == BEAM_SEGMENTS - 1 then
-                pos = endPos
-            else
-                local t = CurTime() * 15
-                local p = (t + (n * n)) + (i / BEAM_SEGMENTS - 1) * math.pi
-                local randVec = Vector(1, 1, 1)
-                randVec.x = randVec.x * util.SharedRandom("beam_posx" .. tostring(i), -0.1, 0.1)
-                randVec.y = randVec.y * util.SharedRandom("beam_posy" .. tostring(i), -0.1, 0.1)
-                randVec.z = randVec.z * util.SharedRandom("beam_posz" .. tostring(i), -0.1, 0.1)
-                offset = Vector(1, 1, 1) * math.sin(p) + (randVec * ((n / BEAM_GROUPS) - 0.5))
-                pos = startPos + (i * split) + offset
+            local p = i / (BEAM_SEGMENTS - 1)
+            local pos = LerpVector(p, startPos, endPos)
+            local randVec = Vector(1, 1, 1)
+            randVec.x = randVec.x * util.SharedRandom("beam_posx" .. tostring(i), -0.1, 0.1)
+            randVec.y = randVec.y * util.SharedRandom("beam_posy" .. tostring(i), -0.1, 0.1)
+            randVec.z = randVec.z * util.SharedRandom("beam_posz" .. tostring(i), -0.1, 0.1)
+            if i > 0 then
+                local yOffset = math.sin(i + (seed * 10) + curTime * frequency) * range
+                local xOffset = math.cos(i + (seed * 20) + seed + curTime * frequency) * range
+                local zOffset = math.sin(i + (seed * 30) + seed + curTime * frequency * 0.5) * range
+                pos.x = pos.x + xOffset
+                pos.y = pos.y + yOffset
+                pos.z = pos.z + zOffset
+                pos = pos + VectorRand() * 0.2
             end
 
             local texcoord = util.SharedRandom("beam_tex" .. tostring(i), 0.5, 1)

gamemode/sh_entity_extend.lua

@@ -397,12 +397,9 @@ end
 
 function ENTITY_META:CanTakeDamage()
     local data = self:GetInternalVariable("m_takedamage")
-
     if data ~= nil then
         -- DAMAGE_NO
         return data ~= 0
-    else
-        if self:IsNPC() == false and self:IsPlayer() == false and self:IsVehicle() == false then return false end
     end
 
     return true