optimize spell target recount, add subtle animation when targets appear

lib/simple_ui/level/skill_row.lua

@@ -112,6 +112,7 @@ function skillRow.new(characterId)
                 if not behavior.cast then
                     behavior.cast = behavior.spellbook[i]
                     behavior.state = "casting"
+                    behavior.spellbook[i]:onSelected(char)
                 else
                     behavior.state = "idle"
                     behavior.cast = nil

lib/spell/spell.lua

@@ -24,9 +24,16 @@ spell.baseCooldown = 1
 spell.targetQuery  = Query(targetTest.any)
 spell.previewType  = "default"
 
-function spell:update(caster, dt)
-    self.targets = self.targetQuery:asSet(caster)
 
+--- Вызывается, когда игрок выбирает спелл на панели заклинаний
+--- @param caster Character
+function spell:onSelected(caster)
+    self.targets = self.targetQuery:asSet(caster)
+    self.tSize = 0.67 -- анимация появления таргетов
+    task.tween(self, { tSize = 1 }, 200, easing.easeOutQuad)
+end
+
+function spell:update(caster, dt)
     if self.previewType == "path" then
         local charPos = caster:has(Tree.behaviors.positioned).position:floor()
         --- @type Vec3
@@ -46,9 +53,9 @@ function spell:draw()
     love.graphics.setCanvas(Tree.level.render.textures.overlayLayer)
     love.graphics.setColor(1, 1, 1, 0.5)
     for _, p in pairs(self.targets) do
-        local s = 1 / Tree.level.camera.pixelsPerMeter
+        local s = self.tSize / Tree.level.camera.pixelsPerMeter
         local quad = icons:pickQuad('dev_target')
-        love.graphics.draw(icons.atlas, quad, p.x, p.y, 0, s, s)
+        love.graphics.draw(icons.atlas, quad, p.x + 0.5 - self.tSize / 2, p.y + 0.5 - self.tSize / 2, 0, s, s)
     end
     love.graphics.setShader()