diff options
Diffstat (limited to 'objects.go')
| -rw-r--r-- | objects.go | 134 |
1 files changed, 122 insertions, 12 deletions
@@ -10,6 +10,7 @@ import ( const ( SPRING_FORCE = 8 + SIDE_SPRING_FORCE = 8 ) type Direction int @@ -41,7 +42,7 @@ type GameObject struct { onCollideLeft func(this, other *GameObject) bool onCollideRight func(this, other *GameObject) bool Draw func (o * GameObject, screen *ebiten.Image, tilemap Tilemap) - UpdateFunc func (o * GameObject, tilemap Tilemap, others []*GameObject) + UpdateFunc func (o * GameObject, tilemap Tilemap, others []*GameObject) bool movable bool state int delta int @@ -52,7 +53,31 @@ type Player struct { GameObject } -func UpdateSpring(o * GameObject, tilemap Tilemap, others []*GameObject) { +func UpdateHPlatform(o * GameObject, tilemap Tilemap, others []*GameObject) bool { + o.delta += 1 + if int(o.delta / 128) % 2 == 0 { + o.vx = -0.4 + } else { + o.vx = 0.4 + } + o.x += o.vx + o.vy = 0 + return true +} + +func UpdateVPlatform(o * GameObject, tilemap Tilemap, others []*GameObject) bool { + o.delta += 1 + if int(o.delta / 128) % 2 == 0 { + o.vy = -0.4 + } else { + o.vy = 0.4 + } + o.y += o.vy + return true +} + +func UpdateSpring(o * GameObject, tilemap Tilemap, others []*GameObject) bool { + o.delta += 1 if o.delta % 3 == 0 { if o.state == 1 { o.state = 0 @@ -60,27 +85,29 @@ func UpdateSpring(o * GameObject, tilemap Tilemap, others []*GameObject) { o.state = 1 } } + return false } func (o * GameObject) Update(tilemap Tilemap, others []*GameObject) { - if o.UpdateFunc != nil { - o.UpdateFunc(o, tilemap, others) - } - o.delta += 1 - var direction Direction o.vy += gravity o.vx *= o.resistance o.vy *= o.resistance + if o.UpdateFunc != nil { + if o.UpdateFunc(o, tilemap, others) { + return + } + } + o.x += o.vx if o.vx > 0 { - direction = RIGHT - } else { direction = LEFT + } else { + direction = RIGHT } if o.HasCollision(tilemap, others, direction) { @@ -105,6 +132,7 @@ func (o * GameObject) Update(tilemap Tilemap, others []*GameObject) { } else { o.onGround = false; } + } func GetObjectAt(objects []*GameObject, x, y float32) *GameObject { @@ -283,7 +311,35 @@ func NewSpring(game *Game, x, y float32) *GameObject{ tilesImage.SubImage(image.Rect(176, 16, 192, 32)).(*ebiten.Image), tilesImage.SubImage(image.Rect(176, 32, 192, 48)).(*ebiten.Image), } - spring.onCollideUp = OnCollideSpring + spring.onCollideUp = OnCollideTopSpring + spring.UpdateFunc = UpdateSpring + + return spring +} + +func NewRightSideSpring(game *Game, x, y float32) *GameObject{ + spring := NewObject(game, x, y) + + spring.images = []*ebiten.Image{ + tilesImage.SubImage(image.Rect(176, 48, 192, 64)).(*ebiten.Image), + tilesImage.SubImage(image.Rect(176, 64, 192, 80)).(*ebiten.Image), + tilesImage.SubImage(image.Rect(176, 80, 192, 96)).(*ebiten.Image), + } + spring.onCollideRight = OnCollideRightSideSpring + spring.UpdateFunc = UpdateSpring + + return spring +} + +func NewLeftSideSpring(game *Game, x, y float32) *GameObject{ + spring := NewObject(game, x, y) + + spring.images = []*ebiten.Image{ + tilesImage.SubImage(image.Rect(176, 96, 192, 112)).(*ebiten.Image), + tilesImage.SubImage(image.Rect(176, 112, 192, 128)).(*ebiten.Image), + tilesImage.SubImage(image.Rect(176, 128, 192, 144)).(*ebiten.Image), + } + spring.onCollideLeft = OnCollideLeftSideSpring spring.UpdateFunc = UpdateSpring return spring @@ -309,11 +365,36 @@ func NewLeftSpike(game *Game, x, y float32) *GameObject{ spike.images = []*ebiten.Image{ tilesImage.SubImage(image.Rect(195, 16, 208, 32)).(*ebiten.Image), } - spike.onCollideRight = OnCollideSpike + spike.onCollideLeft = OnCollideSpike return spike } +func NewVPlatform(game *Game, x, y float32) *GameObject{ + platform := NewObject(game, x, y) + + platform.images = []*ebiten.Image{ + tilesImage.SubImage(image.Rect(208, 0, 224, 5)).(*ebiten.Image), + } + platform.onCollideUp = OnCollideVPlatformTop + platform.onCollideDown = OnCollideVPlatformBottom + platform.UpdateFunc = UpdateVPlatform + + return platform +} + +func NewHPlatform(game *Game, x, y float32) *GameObject{ + platform := NewObject(game, x, y) + + platform.images = []*ebiten.Image{ + tilesImage.SubImage(image.Rect(208, 0, 224, 5)).(*ebiten.Image), + } + platform.onCollideUp = OnCollideVPlatformTop + platform.UpdateFunc = UpdateHPlatform + + return platform +} + func OnCollideExit(this, other *GameObject) bool { if other == this.game.player { g := other.game @@ -329,7 +410,6 @@ func OnCollideExit(this, other *GameObject) bool { } func OnCollideSpring(this, other *GameObject) bool { - other.vy = -SPRING_FORCE other.onGround = true this.state = 2 this.delta = 1 @@ -338,6 +418,25 @@ func OnCollideSpring(this, other *GameObject) bool { return false } +func OnCollideTopSpring(this, other *GameObject) bool { + other.vy = -SPRING_FORCE + other.y += other.vy + + return OnCollideSpring(this, other) +} + +func OnCollideLeftSideSpring(this, other *GameObject) bool { + other.vx = -SPRING_FORCE + other.x += other.vx + return OnCollideSpring(this, other) +} + +func OnCollideRightSideSpring(this, other *GameObject) bool { + other.vx = SPRING_FORCE + other.x += other.vx + return OnCollideSpring(this, other) +} + func OnCollideSpike(this, other *GameObject) bool { if other == this.game.player { other.game.KillPlayer() @@ -345,3 +444,14 @@ func OnCollideSpike(this, other *GameObject) bool { return true } +func OnCollideVPlatformTop(this, other *GameObject) bool { + other.y = this.y - float32(other.images[0].Bounds().Dy()) + this.vy + other.vy = this.vy + other.x += this.vx + return true +} +func OnCollideVPlatformBottom(this, other *GameObject) bool { + other.y = this.y + float32(this.images[0].Bounds().Dy()) + other.vy = this.vy + return false +} |