func DrawStarTex(t *data.Star) {
// Find the center point of the texture to rotate around
xav := (t.X1 + t.X2) / 2
yav := (t.Y1 + t.Y2) / 2
//Translate there, rotate, translate back
gl.MatrixMode(gl.MODELVIEW)
gl.Translatef(xav, yav, 0)
gl.Rotatef(gl.Float(t.Theta), 0, 0, 1)
gl.Translatef(-xav, -yav, 0)
//Bind our texture to be drawn by id
gl.Color3f(1, 1, 1)
gl.Enable(gl.TEXTURE_2D)
gl.BindTexture(gl.TEXTURE_2D, t.TexId)
// Draw a rectangle with the texture stretched to the corners
gl.Begin(gl.QUADS)
// Stretch the texture to its 4 corners.
gl.TexCoord2d(0, 0)
gl.Vertex2f(t.X1, t.Y1)
gl.TexCoord2d(0, 1)
gl.Vertex2f(t.X1, t.Y2)
gl.TexCoord2d(1, 1)
gl.Vertex2f(t.X2, t.Y2)
gl.TexCoord2d(1, 0)
gl.Vertex2f(t.X2, t.Y1)
gl.End()
// Unbind the texture in case something else wants to draw
gl.Disable(gl.TEXTURE_2D)
// Reset the matrix
gl.LoadIdentity()
}
func setupTextureList() {
textureListSync.Do(func() {
render.Queue(func() {
textureList = gl.GenLists(1)
gl.NewList(textureList, gl.COMPILE)
gl.Begin(gl.QUADS)
gl.TexCoord2d(0, -1)
gl.Vertex2i(0, 0)
gl.TexCoord2d(0, 0)
gl.Vertex2i(0, 1)
gl.TexCoord2d(1, 0)
gl.Vertex2i(1, 1)
gl.TexCoord2d(1, -1)
gl.Vertex2i(1, 0)
gl.End()
gl.EndList()
})
})
}
func (e *Entity) Render(pos mathgl.Vec2, width float32) {
var rgba [4]float64
gl.GetDoublev(gl.CURRENT_COLOR, &rgba[0])
e.last_render_width = width
gl.Enable(gl.TEXTURE_2D)
e.drawReticle(pos, rgba)
if e.sprite.sp != nil {
dxi, dyi := e.sprite.sp.Dims()
dx := float32(dxi)
dy := float32(dyi)
tx, ty, tx2, ty2 := e.sprite.sp.Bind()
gl.Begin(gl.QUADS)
gl.TexCoord2d(tx, -ty)
gl.Vertex2f(pos.X, pos.Y)
gl.TexCoord2d(tx, -ty2)
gl.Vertex2f(pos.X, pos.Y+dy*width/dx)
gl.TexCoord2d(tx2, -ty2)
gl.Vertex2f(pos.X+width, pos.Y+dy*width/dx)
gl.TexCoord2d(tx2, -ty)
gl.Vertex2f(pos.X+width, pos.Y)
gl.End()
}
}
func (sb *spriteBox) Draw(region gui.Region) {
gl.Disable(gl.TEXTURE_2D)
gl.Color4d(sb.r, sb.g, sb.b, 1)
gl.Begin(gl.QUADS)
gl.Vertex2i(int32(region.X+region.Dx/3), int32(region.Y))
gl.Vertex2i(int32(region.X+region.Dx/3), int32(region.Y+region.Dy))
gl.Vertex2i(int32(region.X+region.Dx/3*2), int32(region.Y+region.Dy))
gl.Vertex2i(int32(region.X+region.Dx/3*2), int32(region.Y))
gl.End()
if sb.s != nil {
gl.Enable(gl.TEXTURE_2D)
tx, ty, tx2, ty2 := sb.s.Bind()
// fmt.Printf("Tex: %f %f %f %f\n", tx, ty, tx2, ty2)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Color4f(1, 1, 1, 1)
gl.Begin(gl.QUADS)
x := int32(region.X + region.Dx/2)
y := int32(region.Y + region.Dy/2)
gl.TexCoord2d(tx, -ty)
gl.Vertex2i(x-50, y-75)
gl.TexCoord2d(tx, -ty2)
gl.Vertex2i(x-50, y+75)
gl.TexCoord2d(tx2, -ty2)
gl.Vertex2i(x+50, y+75)
gl.TexCoord2d(tx2, -ty)
gl.Vertex2i(x+50, y-75)
gl.End()
gl.Color4d(1, 1, 1, 1)
text := fmt.Sprintf("%d : %s : %s", sb.s.Facing(), sb.s.Anim(), sb.s.AnimState())
if sb.top {
dict.RenderString(text, float64(region.X), float64(region.Y+region.Dy)-dict.MaxHeight(), 0, dict.MaxHeight(), gui.Left)
} else {
dict.RenderString(text, float64(region.X), float64(region.Y), 0, dict.MaxHeight(), gui.Left)
}
}
}