47 lines
633 B
Go
47 lines
633 B
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"math/rand"
|
||
|
|
"sync"
|
||
|
|
|
||
|
|
"github.com/hajimehoshi/ebiten/v2"
|
||
|
|
)
|
||
|
|
|
||
|
|
type creep struct {
|
||
|
|
x, y float64
|
||
|
|
sprite *ebiten.Image
|
||
|
|
|
||
|
|
moveX, moveY float64
|
||
|
|
|
||
|
|
tick int
|
||
|
|
nextAction int
|
||
|
|
|
||
|
|
sync.Mutex
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *creep) doNextAction() {
|
||
|
|
c.moveX = (rand.Float64() - 0.5) / 10
|
||
|
|
c.moveY = (rand.Float64() - 0.5) / 10
|
||
|
|
|
||
|
|
c.nextAction = 400 + rand.Intn(1000)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *creep) Update() {
|
||
|
|
c.Lock()
|
||
|
|
defer c.Unlock()
|
||
|
|
|
||
|
|
c.tick++
|
||
|
|
if c.tick >= c.nextAction {
|
||
|
|
c.doNextAction()
|
||
|
|
c.tick = 0
|
||
|
|
}
|
||
|
|
|
||
|
|
c.x, c.y = c.x+c.moveX, c.y+c.moveY
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *creep) Position() (float64, float64) {
|
||
|
|
c.Lock()
|
||
|
|
defer c.Unlock()
|
||
|
|
return c.x, c.y
|
||
|
|
}
|