60 lines
1.1 KiB
Go
60 lines
1.1 KiB
Go
package entities
|
|
|
|
import (
|
|
"git.solsynth.dev/highland/codingland/pkg/internal/land"
|
|
"github.com/veandco/go-sdl2/sdl"
|
|
)
|
|
|
|
const (
|
|
Acceleration = 0.5
|
|
Friction = 0.9
|
|
)
|
|
|
|
type Player struct {
|
|
land.BaseObject
|
|
|
|
Position land.Vector2D
|
|
Size land.Vector2D
|
|
Velocity land.Vector2D
|
|
}
|
|
|
|
func (p *Player) Update() {
|
|
keys := sdl.GetKeyboardState()
|
|
if keys[sdl.SCANCODE_UP] == 1 || keys[sdl.SCANCODE_W] == 1 {
|
|
p.Move(0, -1)
|
|
}
|
|
if keys[sdl.SCANCODE_DOWN] == 1 || keys[sdl.SCANCODE_S] == 1 {
|
|
p.Move(0, 1)
|
|
}
|
|
if keys[sdl.SCANCODE_LEFT] == 1 || keys[sdl.SCANCODE_A] == 1 {
|
|
p.Move(-1, 0)
|
|
}
|
|
if keys[sdl.SCANCODE_RIGHT] == 1 || keys[sdl.SCANCODE_D] == 1 {
|
|
p.Move(1, 0)
|
|
}
|
|
|
|
p.Move(0, 0)
|
|
p.BaseObject.Update()
|
|
}
|
|
|
|
func (p *Player) Move(deltaX, deltaY float64) {
|
|
p.Velocity.X += deltaX * Acceleration
|
|
p.Velocity.Y += deltaY * Acceleration
|
|
|
|
p.Position.X += p.Velocity.X
|
|
p.Position.Y += p.Velocity.Y
|
|
|
|
p.Velocity.X *= Friction
|
|
p.Velocity.Y *= Friction
|
|
}
|
|
|
|
func (p *Player) Draw(pen *sdl.Renderer) {
|
|
pen.SetDrawColor(255, 255, 255, 255)
|
|
pen.FillRect(&sdl.Rect{
|
|
X: int32(p.Position.X),
|
|
Y: int32(p.Position.Y),
|
|
W: int32(p.Size.X),
|
|
H: int32(p.Size.Y),
|
|
})
|
|
}
|