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Depth protection on quadtree.

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This commit is contained in:
iegod
2025-11-30 07:14:00 -05:00
parent f6fead2ddd
commit ba2c798b2e
2 changed files with 21 additions and 14 deletions
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16
game/game.go
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@@ -19,7 +19,7 @@ const (
GameHeight = 360
GameParticleCount = 2000
GameGravity = 2
GameParticleRadius = 5
GameParticleRadius = 2.5
GameDamping = .7
GameDeltaTimeStep = 0.5
GameInfluenceRadius = 30
@@ -59,7 +59,7 @@ func NewGame() *Game {
Position: gamedata.Vector{X: GameWidth / 2, Y: GameHeight / 2},
Dimensions: gamedata.Vector{X: GameWidth, Y: GameHeight},
}
g.quadtree = quadtree.New(quad)
g.quadtree = quadtree.New(quad, 0)
vector.FillCircle(g.particlebuff, GameParticleRadius, GameParticleRadius, GameParticleRadius, color.White, true)
@@ -123,8 +123,8 @@ func (g *Game) RenderParticles(img *ebiten.Image) {
for _, particle := range g.particles {
x0 := particle.Position.X - GameParticleRadius
y0 := particle.Position.Y - GameParticleRadius
x0 := particle.Position.X - particle.Radius
y0 := particle.Position.Y - particle.Radius
//redness := float32(particle.Position.Y / g.particlebox.Y)
//blueness := 1 - redness
@@ -344,7 +344,7 @@ func (g *Game) ResolveCollisionsA(particle *elements.Particle) {
//find list of possible maybe collisions, we inspect those in more detail
maybes := g.quadtree.FindAll(quadrant)
sqdist := float64(GameParticleRadius*GameParticleRadius) * 4
sqdist := float64(particle.Radius*particle.Radius) * 4
for _, p := range maybes {
if p == particle {
@@ -368,7 +368,7 @@ func (g *Game) ResolveCollisionsA(particle *elements.Particle) {
if dist2 < sqdist {
d := math.Sqrt(dist2)
nx, ny := delta.X/d, delta.Y/d
overlap := GameParticleRadius*2 - d
overlap := particle.Radius*2 - d
pos.X += nx * overlap
pos.Y += ny * overlap
@@ -394,7 +394,7 @@ func (g *Game) ResolveCollisionsB(particle *elements.Particle) {
//find list of possible maybe collisions, we inspect those in more detail
maybes := g.quadtree.FindAll(quadrant)
sqdist := float64(GameParticleRadius*GameParticleRadius) * 4
sqdist := float64(particle.Radius*particle.Radius) * 4
for _, p := range maybes {
if p == particle {
@@ -411,7 +411,7 @@ func (g *Game) ResolveCollisionsB(particle *elements.Particle) {
if dist2 < sqdist {
d := math.Sqrt(dist2)
overlap := GameParticleRadius*2 - d
overlap := particle.Radius*2 - d
theta := math.Atan2(delta.Y, delta.X)
pos.X += overlap * math.Cos(theta)
pos.Y += overlap * math.Sin(theta)