func (sp *SpawnPoint) Render(pos mathgl.Vec2, width float32) {
gl.Disable(gl.TEXTURE_2D)
gl.Color4d(1, 1, 1, 0.1)
gl.Begin(gl.QUADS)
gl.Vertex2f(gl.Float(pos.X-width/2), gl.Float(pos.Y))
gl.Vertex2f(gl.Float(pos.X-width/2), gl.Float(pos.Y+width))
gl.Vertex2f(gl.Float(pos.X+width/2), gl.Float(pos.Y+width))
gl.Vertex2f(gl.Float(pos.X+width/2), gl.Float(pos.Y))
gl.End()
}
func SetUniformF(shader, variable string, f float32) {
prog, ok := shader_progs[shader]
if !ok {
if !warned_names[shader] {
Warn().Printf("Tried to set a uniform in an unknown shader '%s'", shader)
warned_names[shader] = true
}
return
}
bvariable := []byte(fmt.Sprintf("%s\x00", variable))
loc := gl.GetUniformLocation(gl.Uint(prog), (*gl.Char)(unsafe.Pointer(&bvariable[0])))
gl.Uniform1f(loc, gl.Float(f))
}
func (e *Entity) Render(pos mathgl.Vec2, width float32) {
var rgba [4]float64
gl.GetDoublev(gl.CURRENT_COLOR, (*gl.Double)(&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(gl.Double(tx), gl.Double(-ty))
gl.Vertex2f(gl.Float(pos.X), gl.Float(pos.Y))
gl.TexCoord2d(gl.Double(tx), gl.Double(-ty2))
gl.Vertex2f(gl.Float(pos.X), gl.Float(pos.Y+dy*width/dx))
gl.TexCoord2d(gl.Double(tx2), gl.Double(-ty2))
gl.Vertex2f(gl.Float(pos.X+width), gl.Float(pos.Y+dy*width/dx))
gl.TexCoord2d(gl.Double(tx2), gl.Double(-ty))
gl.Vertex2f(gl.Float(pos.X+width), gl.Float(pos.Y))
gl.End()
}
}