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() *Tri {
	ret := &Tri{}
	ret.Transform = ox.T()
	ret.SetPosition(mx.V2(-100))
	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.Collidable = true
	//ret.Type = gg.CollisionStaticPhysics
	ret.Layer = LayerTriangle
	//ret.Connect(player)

	return ret
}

func (t *Tri) OnUpdate(c Context) {
	//log.Println("onup:", t.IsVisible())
	//redges := rect.Edges()
	//tedges := t.Edges()
	//crosses, ok := tedges.CrossWithEdges(redges)
	//fmt.Println("shit:", crosses, ok)

	if false {
		//fmt.Println("edges:", tedges)
	}
	/*col, hasCol := gg.Collide(t, rect)
	if hasCol && len(col.Crosses) > 0 {
		fmt.Println("col:", col)
	}*/
	e := c.Engine()
	dt := e.DT().Seconds()
	/*if !t.ContainedPoints(gg.Points{c.AbsCursorPosition()}).Empty() {
		t.Color = gg.Rgba(0, 1, 0, 1)
	} else {
		t.Color = gg.Rgba(1, 0, 1, 1)
	}*/
	if t.Spawned {
		return
	}

	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
			}
			/*t.Triangles = append(t.Triangles, gg.Triangle{
				gg.V(0, 10+ mx.Float(counter)),
				gg.V(100+ mx.Float(counter), 0),
				gg.V(0, -10-gg.Float(counter)),
			})*/
		case gg.Key3:
			if t.Spawned {
				break
			}
			tt := *t
			tt.Spawned = true
			tt.Disconnect()
			if e.Spawn(&tt) == nil {
				counter++
			}
		}
	}

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