gg/cmd/test/trianlge.go

package main

import "surdeus.su/core/gg"
import "surdeus.su/core/gg/ox"
import "surdeus.su/core/gg/mx"
//import "fmt"
import "log"

var (
	counter int
)


type Tri struct {
	ox.DrawablePolygon
	Spawned bool
}

func NewTri(t *ox.Transform) *Tri {
	ret := &Tri{}
	ret.Transform = *t
	ret.Triangles = mx.Triangles{
		mx.Triangle{
			mx.V(0, 10),
			mx.V(100, 0),
			mx.V(0, -10),
		},
	}
	ret.Color = gg.RGBA(1, 1, 0, 1)
	ret.Visible = true
	ret.Layer = LayerTriangle

	return ret
}

func (t *Tri) GetTags(c Context) gg.TagMap {
	tags := gg.TagMap{
		TagTriangle: struct{}{},
	}
	if t.IsConnected() {
		tags[TagConnectedToPlayer] = struct{}{}
	}
	return tags
}

func (t *Tri) OnStart(c Context) {
	log.Println("added a tri")
}

func (t *Tri) OnUpdate(c Context) {
	e := c.Engine()
	dt := e.DT().Seconds()

	keys := e.GetKeyboardKeys()

	d := +1.
	if e.IsPressed(gg.KeyShift) {
		d = -1
	}

	for _, key := range keys {
		switch key {

		case gg.KeyM:
			t.Move(mx.VY(100 * dt * d))
		case gg.KeyN:
			t.Move(mx.VX(100 * dt * d))

		case gg.KeyV:
			t.Rotate(d * mx.Pi * 0.3 * dt)
		case gg.Key2:
			if t.Spawned {
				break
			}
		case gg.Key3:
			if t.Spawned {
				break
			}
			tt := *t
			tt.Spawned = true
			tt.Disconnect()
			if e.Spawn(&tt) {
				counter++
			}
		}
	}

	for _, down := range c.Events().Keyboard.Downs {
		switch down.Key {
		case gg.Key1:
			if t.IsConnected() {
				t.Disconnect()
			} else {
				t.Connect(player)
			}
		}
	}
}

func (tri *Tri) Draw(c Context) *gg.Drawing {
	return tri.DrawablePolygon.Draw(c)
}