i love easing4d

Co-authored-by: Ivan Yuriev <ivanyr44@gmail.com>

lib/level/camera.lua

@@ -9,6 +9,9 @@ local EPSILON = 0.001
 --- @field speed number
 --- @field pixelsPerMeter integer
 --- @field scale number
+--- @field animationNode AnimationNode?
+--- @field animationEndPosition Vec3
+--- @field animationBeginPosition Vec3
 local camera = {
     position = Vec3 {},
     velocity = Vec3 {},
@@ -41,6 +44,12 @@ local controlMap = {
 }
 
 function camera:update(dt)
+    if self.animationNode and not (self.animationNode.t >= 1) then
+        self.animationNode:update(dt) -- тик анимации
+        self.position = utils.lerp(self.animationBeginPosition, self.animationEndPosition, self.animationNode:getValue())
+        return
+    end
+
     local ps = Tree.panning
     if ps.delta:length() > 0 then
         local worldDelta = ps.delta:scale(1 / (self.pixelsPerMeter * self.scale)):scale(dt):scale(self.speed)
@@ -88,8 +97,12 @@ function camera:detach()
 end
 
 --- @param position Vec3
-function camera:animateTo(position)
+--- @param animationNode AnimationNode
-    self.position = position
+function camera:animateTo(position, animationNode)
+    if self.animationNode then self.animationNode:finish() end
+    self.animationNode = animationNode
+    self.animationEndPosition = position
+    self.animationBeginPosition = self.position
 end
 
 --- @return Camera

main.lua

@@ -40,11 +40,15 @@ function love.update(dt)
         Tree.level.turnOrder:toggleTurns()
     end
 
-    -- для тестов camera:attachTo
+    -- для тестов camera:animateTo
     -- удалить как только потребность в тестах исчезнет
     if Tree.controls:isJustPressed("cameraAnimateTo") then
         local mousePosition = Tree.level.camera:toWorldPosition(Vec3 { love.mouse.getX(), love.mouse.getY() })
-        Tree.level.camera:animateTo(mousePosition)
+        require('lib.animation_node') {
+            function(animationNode) Tree.level.camera:animateTo(mousePosition, animationNode) end,
+            onEnd = function() print('completed') end,
+            easing = require("lib.utils.easing").easeInOutCubic
+        }:run()
     end
 
     Tree.controls:cache()