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go-opengl-pixel
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basic velocity display bars

This commit is contained in:
Luke Meyers 2020-02-08 12:14:11 -08:00
parent 47bf19265d
commit 9a87e3d349
1 changed files with 26 additions and 9 deletions
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35
gfx/gfx.go
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@ -113,7 +113,7 @@ func renderRacers(ctx context, colors map[*game.Team]pixel.RGBA, pic pixel.Pictu
c := colors[&ctx.sNew.Teams[i]] c := colors[&ctx.sNew.Teams[i]]
for j, racer := range t.Racers { for j, racer := range t.Racers {
oldRacer := ctx.sOld.Teams[i].Racers[j] oldRacer := ctx.sOld.Teams[i].Racers[j]
renderRacer(ctx, oldRacer, racer, c, pic) renderRacer(ctx, oldRacer, racer, racer.ID == ctx.sOld.Teams[i].Baton.HolderID, c, pic)
} }
oldHolder, newHolder := game.ActiveRacer(ctx.sOld.Teams[i]), game.ActiveRacer(ctx.sNew.Teams[i]) oldHolder, newHolder := game.ActiveRacer(ctx.sOld.Teams[i]), game.ActiveRacer(ctx.sNew.Teams[i])
@ -128,21 +128,38 @@ func renderRacers(ctx context, colors map[*game.Team]pixel.RGBA, pic pixel.Pictu
} }
} }
func renderRacer(ctx context, oldRacer, racer game.Racer, c pixel.RGBA, pic pixel.Picture) { func renderRacer(ctx context, oldRacer, racer game.Racer, active bool, c pixel.RGBA, pic pixel.Picture) {
im := imdraw.New(nil)
im.Color = c
oldPos := lanePos(oldRacer.Position.Pos, oldRacer.Position.Lane, racerWidth, ctx.w.Bounds()) oldPos := lanePos(oldRacer.Position.Pos, oldRacer.Position.Lane, racerWidth, ctx.w.Bounds())
newPos := lanePos(racer.Position.Pos, racer.Position.Lane, racerWidth, ctx.w.Bounds()) newPos := lanePos(racer.Position.Pos, racer.Position.Lane, racerWidth, ctx.w.Bounds())
pos := pixel.Vec{ pos := pixel.Vec{
X: oldPos.X + ctx.tween*(newPos.X-oldPos.X), X: oldPos.X + ctx.tween*(newPos.X-oldPos.X),
Y: oldPos.Y + ctx.tween*(newPos.Y-oldPos.Y), Y: oldPos.Y + ctx.tween*(newPos.Y-oldPos.Y),
} }
im.Push(pos) if active {
im.Clear() im := imdraw.New(nil)
im.Draw(ctx.w) projC := c
alpha := 0.25
projC.R *= alpha
projC.G *= alpha
projC.B *= alpha
projC.A = alpha
im.Color = projC
w := racerWidth * 2
ll := pixel.Vec{
X: pos.X + w,
Y: pos.Y - w,
}
ur := pixel.Vec{
X: pos.X + w*float64(racer.Kinetics.V+1),
Y: pos.Y + w,
}
im.Push(ll)
im.Push(ur)
im.Rectangle(0)
im.Draw(ctx.w)
}
bounds := pic.Bounds() bounds := pic.Bounds()
sprite := pixel.NewSprite(pic, bounds) sprite := pixel.NewSprite(pic, bounds)
sprite.DrawColorMask(ctx.w, pixel.IM.Moved(pos).ScaledXY(pos, pixel.Vec{2, 2}), c) sprite.DrawColorMask(ctx.w, pixel.IM.Moved(pos).ScaledXY(pos, pixel.Vec{2, 2}), c)