diff options
Diffstat (limited to 'objects.go')
| -rw-r--r-- | objects.go | 58 |
1 files changed, 36 insertions, 22 deletions
@@ -1,16 +1,17 @@ package main import ( + "image" + "image/color" "log" - "image" - "image/color" - "github.com/hajimehoshi/ebiten/v2" - "github.com/hajimehoshi/ebiten/v2/vector" + + "github.com/hajimehoshi/ebiten/v2" "github.com/hajimehoshi/ebiten/v2/ebitenutil" + "github.com/hajimehoshi/ebiten/v2/vector" ) const ( - SPRING_FORCE = 8 + SPRING_FORCE = 10 ) type Direction int @@ -30,6 +31,8 @@ type GameObject struct { vx, vy float32 offsetX, offsetY int + alpha float32 + highlight bool friction float32 resistance float32 @@ -88,17 +91,21 @@ func (o * GameObject) Update(tilemap Tilemap, others []*GameObject) { func GetObjectAt(objects []*GameObject, x, y float32) *GameObject { for _, object := range objects { - maxX := object.x + float32(object.image.Bounds().Dx()) - maxY := object.y + float32(object.image.Bounds().Dy()) - minX := object.x - minY := object.y - if x >= minX && x < maxX && y >= minY && y < maxY { + if object.CollidePoint(x, y) { return object } } return nil } +func (object * GameObject) CollidePoint(x, y float32) bool { + maxX := object.x + float32(object.image.Bounds().Dx()) + maxY := object.y + float32(object.image.Bounds().Dy()) + minX := object.x + minY := object.y + return x >= minX && x < maxX && y >= minY && y < maxY + } + func (o * GameObject) HasCollision(tilemap Tilemap, others []*GameObject, dir Direction) bool { if tilemap.CollideObject(o) { return true @@ -128,12 +135,12 @@ func (o * GameObject) HasCollision(tilemap Tilemap, others []*GameObject, dir Di func (o * GameObject) Draw(screen *ebiten.Image, tilemap Tilemap) { op := &ebiten.DrawImageOptions{} + op.ColorScale.ScaleAlpha(o.alpha) op.GeoM.Translate(float64(o.x), float64(o.y)) screen.DrawImage(o.image, op) - - if o.movable { - vector.StrokeRect(screen, o.x, o.y, float32(o.image.Bounds().Dx()), float32(o.image.Bounds().Dy()), 2, color.RGBA{255, 100, 100, 255}, false) + if o.highlight { + vector.StrokeRect(screen, o.x, o.y, float32(o.image.Bounds().Dx()), float32(o.image.Bounds().Dy()), hightlightBorder, color.RGBA{255, 100, 100, 255}, false) } @@ -184,18 +191,18 @@ func OnCollideGeneric(this, other *GameObject) bool { } func NewObject(game *Game, x, y float32) *GameObject{ - obj := &GameObject{ + return &GameObject{ game: game, startx: x, starty: y, + alpha: 1.0, + highlight: false, + friction: friction, + resistance: airResistance, + x: x, + y: y, + movable: true, } - - obj.friction = friction - obj.resistance = airResistance - obj.x = obj.startx - obj.y = obj.starty - obj.movable = true - return obj } func NewPlayer(game *Game, x, y float32) *GameObject{ @@ -264,7 +271,14 @@ func NewLeftSpike(game *Game, x, y float32) *GameObject{ func OnCollideExit(this, other *GameObject) bool { if other == this.game.player { - this.game.EndLevel() + g := other.game + g.player.x = (exitTransitionWeight)*g.player.x + (1-exitTransitionWeight)*g.exit.x + g.player.y = (exitTransitionWeight)*g.player.y + (1-exitTransitionWeight)*g.exit.y + g.player.alpha *= exitTransitionWeight + + if g.player.alpha < 0.001 { + g.EndLevel() + } } return false } |