92 lines
1.7 KiB
Go
92 lines
1.7 KiB
Go
package gfx
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import (
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"image/color"
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"relay/game"
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"time"
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"github.com/faiface/pixel"
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"github.com/faiface/pixel/imdraw"
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"github.com/faiface/pixel/pixelgl"
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"golang.org/x/image/colornames"
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)
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func Render(s game.State, w *pixelgl.Window, d time.Duration) {
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colors := teamColors(s.Teams)
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renderBots(s, w, d, colors)
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renderObstacles(s, w)
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}
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func renderBots(s game.State, w *pixelgl.Window, d time.Duration, colors map[*game.Team]pixel.RGBA) {
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b := w.Bounds()
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im := imdraw.New(nil)
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for i, t := range s.Teams {
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for j, bot := range t.Bots {
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if &t.Bots[j] == t.Baton.Holder {
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im.Color = pixel.RGB(0, 1, 0)
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} else {
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im.Color = colors[&s.Teams[i]]
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}
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pos := lanePos(bot.Pos, i, botWidth, b)
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im.Push(pos)
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im.Clear()
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im.Circle(float64(botWidth), 0)
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im.Draw(w)
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}
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}
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}
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func lanePos(pos, lane int, width float64, bounds pixel.Rect) pixel.Vec {
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hOffset := bounds.Size().X / game.Steps
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vOffset := bounds.Size().Y / (game.NumTeams + 1)
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return pixel.V(bounds.Min.X+width/2+float64(pos)*hOffset,
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bounds.Min.Y+float64(lane+1)*vOffset)
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}
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func renderObstacles(s game.State, w *pixelgl.Window) {
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b := w.Bounds()
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im := imdraw.New(nil)
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for _, o := range s.Obstacles {
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im.Color = pixel.RGB(1, 0, 1)
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pos := lanePos(o.Pos, o.Lane, botWidth, b)
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im.Push(pos)
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im.Clear()
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im.Circle(float64(botWidth), 0)
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im.Draw(w)
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}
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}
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func teamColors(ts []game.Team) map[*game.Team]pixel.RGBA {
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m := make(map[*game.Team]pixel.RGBA)
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for i := range ts {
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var c color.RGBA
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switch i {
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case 0:
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c = colornames.Cyan
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case 1:
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c = colornames.Gold
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case 2:
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c = colornames.Lavender
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case 3:
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c = colornames.Indigo
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}
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m[&ts[i]] = pixel.ToRGBA(c)
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}
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return m
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}
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const (
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botWidth float64 = 20
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)
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