From 3720185aa212d9b810a592f6c8a17be718136597 Mon Sep 17 00:00:00 2001
From: Bauumm <oh4@web.de>
Date: Mon, 12 Feb 2024 21:02:18 +0100
Subject: [PATCH] forgot git add

---
 ui/screens/levelselect/level_preview.lua | 80 ++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 ui/screens/levelselect/level_preview.lua

diff --git a/ui/screens/levelselect/level_preview.lua b/ui/screens/levelselect/level_preview.lua
new file mode 100644
index 0000000..4df5fba
--- /dev/null
+++ b/ui/screens/levelselect/level_preview.lua
@@ -0,0 +1,80 @@
+local game_handler = require("game_handler")
+local threadify = require("threadify")
+local download = threadify.require("ui.overlay.packs.download_thread")
+
+local preview = {}
+preview.__index = preview
+
+function preview:new()
+    return setmetatable({
+        rotation = 0,
+    }, preview)
+end
+
+function preview:set(game_version, pack, level, has_pack)
+    local promise
+    if has_pack == nil then
+        has_pack = true
+    end
+    if has_pack then
+        promise = game_handler.get_preview_data(game_version, pack)
+    else
+        promise = download.get_preview_data(game_version, pack)
+    end
+    if promise then
+        promise:done(function(data)
+            self.data = data[level]
+            self.vertices = {}
+            self.rotation = 0
+        end)
+    end
+end
+
+function preview:draw(fullscreen)
+    if not self.data then
+        return
+    end
+    if fullscreen then
+        local w, h = love.graphics.getDimensions()
+        love.graphics.push()
+        love.graphics.translate(w / 2, h / 2)
+        local zoom_factor = 1 / math.max(1024 / w, 768 / h)
+        love.graphics.scale(zoom_factor, zoom_factor)
+        love.graphics.rotate(self.rotation)
+        self.rotation = self.rotation - self.data.rotation_speed * love.timer.getDelta()
+    end
+    self.vertices = self.vertices or {}
+    local distance = fullscreen and 10000 or 48
+    local pivot_thickness = fullscreen and 5 or 2
+    for i = 1, self.data.sides do
+        local angle1 = i * 2 * math.pi / self.data.sides - math.pi / 2
+        local cos1 = math.cos(angle1)
+        local sin1 = math.sin(angle1)
+        local angle2 = angle1 + 2 * math.pi / self.data.sides
+        local cos2 = math.cos(angle2)
+        local sin2 = math.sin(angle2)
+        -- background
+        love.graphics.setColor(self.data.background_colors[i])
+        love.graphics.polygon("fill", 0, 0, cos1 * distance, sin1 * distance, cos2 * distance, sin2 * distance)
+        self.vertices[(i - 1) * 2 + 1] = cos1 * distance
+        self.vertices[i * 2] = sin1 * distance
+    end
+    local cap_mult = fullscreen and 0.0075 or 1 / 3
+    -- pivot
+    love.graphics.setColor(self.data.pivot_color)
+    local pivot_mult = cap_mult + pivot_thickness / 2 / distance
+    love.graphics.scale(pivot_mult, pivot_mult)
+    love.graphics.setLineWidth(pivot_thickness / pivot_mult)
+    love.graphics.polygon("line", self.vertices)
+    love.graphics.scale(1 / pivot_mult, 1 / pivot_mult)
+    -- cap
+    love.graphics.scale(cap_mult, cap_mult)
+    love.graphics.setColor(self.data.cap_color)
+    love.graphics.polygon("fill", self.vertices)
+    love.graphics.scale(1 / cap_mult, 1 / cap_mult)
+    if fullscreen then
+        love.graphics.pop()
+    end
+end
+
+return preview