滾動原型開發

接下來，我們開始聚焦滾動原型的開發。我們需要確定游戲關卡的長度以及背景滾動的速度。

地圖與精靈空間限制

在開發過程中，我們遇到了地圖與精靈空間限制的問題。PICO 8的地圖編輯器下半部分與精靈表共享空間，這意味著我們只能使用地圖的一半空間。這大大限制了我們可以創建的關卡長度。

滾動機制實現

為了實現背景滾動，我們將地圖分割成多個段落，并將它們堆疊在一起。通過調整每個段落的垂直位置，我們實現了背景的連續滾動效果。

性能測試與滾動速度調整

在滾動原型中，我們進行了多次測試，以確定最佳的滾動速度。我們發現，以當前的速度，整個關卡大約可以在60秒內完成，這可能對于一款射擊游戲來說有些過短。

討論與后續計劃

關卡長度問題

我們討論了關卡長度的問題，并決定需要進行更多的研究。我們需要找到射擊游戲中關卡長度的最佳實踐，并思考如何在我們有限的地圖空間內延長關卡時間。

后續任務

接下來的任務包括：

• 研究射擊游戲中關卡長度的標準。
• 探索延長關卡時間的可能方法，如增加障礙物、敵人種類等。
• 繼續優化滾動原型，確保背景滾動的流暢性和視覺效果。

pico-8 cartridge // http://www.pico-8.com
version 41
__lua__
-- scrolling prototype
-- - how long is a level?
-- - what is a good speed?
-- - (tileset?)-- map
-- 128 tiles
-- 32 tiles-- screen
-- 16 x 16 tiles-- 8 screens
-- 2 screens-- 16 screens (15 screens)-- speed 0.5
-- around 60 seconds-- speed 0.2
-- around 160 seconds-- goal: 6 minutes (360s)
--       4 minutes (240s)function _init()scroll=0seglib={}for i=1,32 dolocal col=flr((i-1)/4)*16local row=(i-1)%4*8add(seglib,{mx=col,my=row})endmapsegs={32,2,1,8,32,2,1,8,32,2,1,8,32,2,1,8,32,2,1,8,32,2,1,8,32,2,1,8,32,2,1,8,32,2,1,8,32,2,1,8,32,2,1,8}endfunction _draw()cls(2)for i=1,#mapsegs dolocal myseg=seglib[mapsegs[i]]local segx=scroll-(i-1)*64map(myseg.mx,myseg.my,0,segx,16,8)endprint(flr(time()),5,5,7)print(scroll,5,11,7)endfunction _update60()scroll+=0.2end
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