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package main
import (
"github.com/hajimehoshi/ebiten/v2"
)
const (
gravity = 0.01
friction = 0.6
)
type GameObject struct {
x, y float32
vx, vy float32
image *ebiten.Image
onGround bool
}
type Player struct {
GameObject
}
func (o * GameObject) Update(tilemap Tilemap) {
o.vy += gravity
o.x += o.vx
if tilemap.CollideObject(o) {
o.x -= o.vx
o.vx = 0
}
o.y += o.vy
if (tilemap.CollideObject(o)) {
o.onGround = true;
o.vx *= friction
o.y -= o.vy
o.vy = 0
} else {
o.onGround = false;
}
}
func (o * GameObject) Draw(screen *ebiten.Image, tilemap Tilemap) {
op := &ebiten.DrawImageOptions{}
op.GeoM.Translate(float64(o.x * float32(tilemap.tileSize)), float64(o.y * float32(tilemap.tileSize)))
screen.DrawImage(o.image, op)
}
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