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https://github.com/maaslalani/confetty.git
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unlimited confetti
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eb18e9536b
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@ -22,7 +22,8 @@ const (
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var (
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colors = []string{"#a864fd", "#29cdff", "#78ff44", "#ff718d", "#fdff6a"}
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characters = []string{"▄", "▀"} // "█", "▓", "▒", "░"}
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characters = []string{"█", "▓", "▒", "░", "▄", "▀"}
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// characters = []string{"▄", "▀"}
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)
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type frameMsg time.Time
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@ -125,7 +126,14 @@ func (m model) View() string {
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y := p.physics.PosY()
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x := p.physics.PosX()
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if y < 0 || y >= m.viewport.Height-1 || x < 0 || x >= m.viewport.Width-1 {
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if y < 0 {
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continue
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}
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// Particle is out of view
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if y >= m.viewport.Height-1 || x < 0 || x >= m.viewport.Width-1 {
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// loop motion
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p.physics.Reset()
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continue
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}
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@ -1,6 +1,8 @@
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package physics
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import "math"
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import (
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"math"
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)
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type Position Vector
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type Velocity Vector
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@ -11,11 +13,16 @@ var Gravity = Acceleration{
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Y: 9.81,
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}
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type Physics struct {
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type Motion struct {
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pos Position
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vel Velocity
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acc Acceleration
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fps float64
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}
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type Physics struct {
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current Motion
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initial Motion
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fps float64
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}
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type Vector struct {
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@ -24,23 +31,31 @@ type Vector struct {
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}
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func New(pos, vel, acc Vector, fps float64) *Physics {
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return &Physics{
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motion := Motion{
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pos: Position(pos),
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vel: Velocity(vel),
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acc: Acceleration(acc),
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fps: fps,
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}
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return &Physics{
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initial: motion,
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current: motion,
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fps: fps,
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}
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}
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func (p *Physics) Reset() {
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p.current = p.initial
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}
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func (p *Physics) Update() {
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p.pos.Y, p.vel.Y = p.pos.Y+p.vel.Y/p.fps, p.vel.Y+p.acc.Y/p.fps
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p.pos.X, p.vel.X = p.pos.X+p.vel.X/p.fps, p.vel.X+p.acc.X/p.fps
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p.current.pos.Y, p.current.vel.Y = p.current.pos.Y+p.current.vel.Y/p.fps, p.current.vel.Y+p.current.acc.Y/p.fps
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p.current.pos.X, p.current.vel.X = p.current.pos.X+p.current.vel.X/p.fps, p.current.vel.X+p.current.acc.X/p.fps
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}
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func (p Physics) PosX() int {
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return int(math.Round(p.pos.X))
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return int(math.Round(p.current.pos.X))
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}
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func (p Physics) PosY() int {
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return int(math.Round(p.pos.Y))
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return int(math.Round(p.current.pos.Y))
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}
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