SpindleyQ/inhabitor
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Implement xRel / yRel cel-positioning logic when compositing

Browse source
This commit is contained in:
Jeremy Penner 2023-12-23 14:21:24 -05:00
parent 79f14b8d39
commit 3fe16c7e49
1 changed files with 14 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
index.js
View file

@ -307,20 +307,28 @@ const compositeCels = (cels) => {
let minY = Number.POSITIVE_INFINITY
let maxX = Number.NEGATIVE_INFINITY
let maxY = Number.NEGATIVE_INFINITY
let xRel = 0
let yRel = 0
for (let cel of cels) {
minX = Math.min(minX, cel.xOffset)
minY = Math.min(minY, -cel.yOffset)
maxX = Math.max(maxX, cel.width + cel.xOffset)
maxY = Math.max(maxY, cel.height - cel.yOffset)
} const container = document.getElementById("cels")
minX = Math.min(minX, cel.xOffset + xRel)
minY = Math.min(minY, -(cel.yOffset + yRel))
maxX = Math.max(maxX, cel.width + cel.xOffset + xRel)
maxY = Math.max(maxY, cel.height - (cel.yOffset + yRel))
xRel += cel.xRel
yRel += cel.yRel
}
const w = (maxX - minX) * 8
const h = maxY - minY
const canvas = makeCanvas(w, h)
const ctx = canvas.getContext("2d")
xRel = 0
yRel = 0
for (let cel of cels) {
ctx.drawImage(cel.canvas, (cel.xOffset - minX) * 8, -cel.yOffset - minY)
ctx.drawImage(cel.canvas, (cel.xOffset + xRel - minX) * 8, -(cel.yOffset + yRel) - minY)
xRel += cel.xRel
yRel += cel.yRel
}
return { canvas: canvas, xOffset: minX * 8, yOffset: minY }
}