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tps camera collision fixes

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turanszkij
2019-04-13 15:31:04 +01:00
parent bffee7f718
commit 795299cda0
1 changed files with 21 additions and 17 deletions
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scripts/character_controller_tps.lua
+21 -17
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@@ -224,35 +224,39 @@ ThirdPersonCamera = {
self.camera = CreateEntity()
local camera_transform = scene.Component_CreateTransform(self.camera)
camera_transform.ClearTransform()
camera_transform.Translate(Vector(self.side_offset,self.height))
scene.Component_Attach(self.camera, character.target)
scene.Component_Attach(self.camera, self.character.target)
end,
Update = function(self)
if(self.character ~= nil) then
local camera_transform = scene.Component_GetTransform(self.camera)
local target_transform = scene.Component_GetTransform(self.character.target)
-- Keep distance from player
local camPos = camera_transform.GetPosition()
local camTargetDiff = vector.Subtract(target_transform.GetPosition(), camPos)
local camTargetDistance = camTargetDiff.Length()
camera_transform.Translate(Vector(0,0,-(self.rest_distance - camTargetDistance)))
-- Cast ray from the camera eye and check if it hits something other than the player...
local rayDir = camTargetDiff.Normalize()
local camPos = camera_transform.GetPosition()
local targetPos = target_transform.GetPosition()
local bestDistance = self.rest_distance
-- Camera collision:
local camDiff = vector.Subtract(targetPos, camPos)
local camDist = camDiff.Length()
local rayDir = camDiff.Normalize()
local camRay = Ray(camPos, rayDir)
local camCollObj,camCollPos,camCollNor = Pick(camRay, PICK_OPAQUE, ~self.character.layerMask)
if(camCollObj ~= INVALID_ENTITY) then
local collObj,collPos,collNor = Pick(camRay, PICK_OPAQUE, ~self.character.layerMask)
if(collObj ~= INVALID_ENTITY) then
-- It hit something, see if it is between the player and camera:
local camCollDiff = vector.Subtract(camCollPos, camPos)
local camCollDistance = camCollDiff.Length()
if(camCollDistance < camTargetDistance) then
camera_transform.Translate(Vector(0,0,camCollDistance))
if(vector.Subtract(collPos, camPos).Length() < camDist) then
local collDiff = vector.Subtract(targetPos, collPos)
local collDist = collDiff.Length()
bestDistance = math.min(bestDistance, collDist)
bestDistance = math.max(0, bestDistance)
end
end
camera_transform.ClearTransform()
camera_transform.Translate(Vector(self.side_offset, self.height, -bestDistance))
-- because the main camera is not part of the scene, we ensure that it is following our script camera entity
AttachCamera(self.camera)
end