//Creates a new engine and populates it with the core functions
func LoadGraphics(e *Engine) *Engine {
e = add(e, "glfw.Init", NewCode("glfw.Init", 0, func(e *Engine, c *Thingy) *Engine {
err := glfw.Init()
if err != nil {
panic(err)
}
return e
}))
e = add(e, "GLFWEVENTLOOP", NewCode("GLFWEVENTLOOP", 1, func(e *Engine, c *Thingy) *Engine {
var el1 *Thingy
el1, e.dataStack = popStack(e.dataStack)
window := el1._structVal.(*glfw.Window)
window.MakeContextCurrent()
if err := gl.Init(); err != nil {
panic(err)
}
texture = newTexture("square.png")
defer gl.DeleteTextures(1, &texture)
setupScene()
for !window.ShouldClose() {
drawScene()
window.SwapBuffers()
glfw.PollEvents()
}
return e
}))
e = add(e, "wg.GetStringBounds", NewCode("wg.GetStringBounds", 0, func(e *Engine, c *Thingy) *Engine {
var el1 *Thingy
el1, e.dataStack = popStack(e.dataStack)
left, top, right, bottom := gc.GetStringBounds(el1.getString())
e.dataStack = append(e.dataStack, NewString(fmt.Sprintf("%v", bottom), c))
e.dataStack = append(e.dataStack, NewString(fmt.Sprintf("%v", right), c))
e.dataStack = append(e.dataStack, NewString(fmt.Sprintf("%v", top), c))
e.dataStack = append(e.dataStack, NewString(fmt.Sprintf("%v", left), c))
return e
}))
e = add(e, "wg.SetFillColor", NewCode("wg.SetFillColor", 1, func(e *Engine, c *Thingy) *Engine {
var el1 *Thingy
el1, e.dataStack = popStack(e.dataStack)
col := el1._structVal.(color.RGBA)
EnsureGC()
gc.SetFillColor(col)
return e
}))
e = add(e, "wg.SetStrokeColor", NewCode("wg.SetStrokeColor", 1, func(e *Engine, c *Thingy) *Engine {
var el1 *Thingy
el1, e.dataStack = popStack(e.dataStack)
col := el1._structVal.(color.RGBA)
EnsureGC()
gc.SetStrokeColor(col)
return e
}))
e = add(e, "wg.CloseAndFill", NewCode("wg.CloseAndFill", 0, func(e *Engine, c *Thingy) *Engine {
EnsureGC()
gc.Close()
gc.FillStroke()
return e
}))
e = add(e, "wg.MoveTo", NewCode("wg.MoveTo", 2, func(e *Engine, c *Thingy) *Engine {
var el1, el2 *Thingy
el1, e.dataStack = popStack(e.dataStack)
el2, e.dataStack = popStack(e.dataStack)
x1, _ := strconv.ParseFloat(el1.getString(), 32)
x2, _ := strconv.ParseFloat(el2.getString(), 32)
EnsureGC()
gc.MoveTo(float64(x1), float64(x2)) // should always be called first for a new path
return e
}))
e = add(e, "wg.LineTo", NewCode("wg.LineTo", 2, func(e *Engine, c *Thingy) *Engine {
var el1, el2 *Thingy
el1, e.dataStack = popStack(e.dataStack)
el2, e.dataStack = popStack(e.dataStack)
x1, _ := strconv.ParseFloat(el1.getString(), 32)
x2, _ := strconv.ParseFloat(el2.getString(), 32)
EnsureGC()
gc.LineTo(float64(x1), float64(x2)) // should always be called first for a new path
return e
}))
e = add(e, "wg.RoundedRectangle", NewCode("wg.RoundedRectangle", 2, func(e *Engine, c *Thingy) *Engine {
var el1, el2, el3, el4 *Thingy
el1, e.dataStack = popStack(e.dataStack)
el2, e.dataStack = popStack(e.dataStack)
el3, e.dataStack = popStack(e.dataStack)
el4, e.dataStack = popStack(e.dataStack)
x1, _ := strconv.ParseFloat(el1.getString(), 32)
x2, _ := strconv.ParseFloat(el2.getString(), 32)
x3, _ := strconv.ParseFloat(el3.getString(), 32)
x4, _ := strconv.ParseFloat(el4.getString(), 32)
EnsureGC()
draw2dkit.RoundedRectangle(gc, x1, x2, x3, x4, 10, 10)
gc.FillStroke()
return e
}))
e = add(e, "wg.FillStringAt", NewCode("wg.FillStringAt", 3, func(e *Engine, c *Thingy) *Engine {
var el1, el2, el3 *Thingy
el3, e.dataStack = popStack(e.dataStack)
el1, e.dataStack = popStack(e.dataStack)
el2, e.dataStack = popStack(e.dataStack)
x1, _ := strconv.ParseFloat(el1.getString(), 32)
x2, _ := strconv.ParseFloat(el2.getString(), 32)
EnsureGC()
// Set the font luximbi.ttf
gc.SetFontData(draw2d.FontData{Name: "luxi", Family: draw2d.FontFamilyMono, Style: draw2d.FontStyleBold | draw2d.FontStyleItalic})
// Set the fill text color to black
gc.SetFillColor(image.White)
gc.SetFontSize(15)
gc.FillStringAt(el3.getString(), float64(x1), float64(x2)) // should always be called first for a new path
return e
}))
e = add(e, "WG.CLEAR", NewCode("WG.CLEAR", 1, func(e *Engine, c *Thingy) *Engine {
var el3 *Thingy
el3, e.dataStack = popStack(e.dataStack)
col := el3._structVal.(color.RGBA)
wg.ClearImage(col)
return e
}))
e = add(e, "WG.TEST", NewCode("WG.TEST", 0, func(e *Engine, c *Thingy) *Engine {
/*var el1, el2,el3 *Thingy
el1, e.dataStack = popStack(e.dataStack)
el2, e.dataStack = popStack(e.dataStack)
el3, e.dataStack = popStack(e.dataStack)
x1, _ := strconv.ParseInt( el1.getString(), 10, 32 )
x2, _ := strconv.ParseInt( el2.getString(), 10, 32 )
col := el3._structVal.(color.RGBA) */
EnsureGC()
// Set some properties
gc.SetFillColor(color.RGBA{0x44, 0xff, 0x44, 0xff})
gc.SetStrokeColor(color.RGBA{0x44, 0x44, 0x44, 0xff})
gc.SetLineWidth(5)
// Draw a closed shape
gc.MoveTo(100, 100) // should always be called first for a new path
gc.LineTo(600, 150)
gc.QuadCurveTo(600, 10, 10, 10)
gc.Close()
gc.FillStroke()
return e
}))
e = add(e, "WG.SETPOINT", NewCode("WG.SETPOINT", 3, func(e *Engine, c *Thingy) *Engine {
var el1, el2, el3 *Thingy
el1, e.dataStack = popStack(e.dataStack)
el2, e.dataStack = popStack(e.dataStack)
el3, e.dataStack = popStack(e.dataStack)
x1, _ := strconv.ParseInt(el1.getString(), 10, 32)
x2, _ := strconv.ParseInt(el2.getString(), 10, 32)
col := el3._structVal.(color.RGBA)
wg.GetImage().Set(int(x1), int(x2), col)
return e
}))
e = add(e, "RGBA", NewCode("RGBA", 3, func(e *Engine, c *Thingy) *Engine {
var el1, el2, el3, el4 *Thingy
el1, e.dataStack = popStack(e.dataStack)
el2, e.dataStack = popStack(e.dataStack)
el3, e.dataStack = popStack(e.dataStack)
el4, e.dataStack = popStack(e.dataStack)
x1, _ := strconv.ParseInt(el1.getString(), 10, 32)
x2, _ := strconv.ParseInt(el2.getString(), 10, 32)
x3, _ := strconv.ParseInt(el3.getString(), 10, 32)
x4, _ := strconv.ParseInt(el4.getString(), 10, 32)
col := color.RGBA{uint8(x1), uint8(x2), uint8(x3), uint8(x4)}
e.dataStack = append(e.dataStack, NewWrapper(col))
return e
}))
e = add(e, "WG.GETKEY", NewCode("WG.GETKEY", 0, func(e *Engine, c *Thingy) *Engine {
var el1 *Thingy
el1, e.dataStack = popStack(e.dataStack)
xx, _ := strconv.ParseInt(el1.getString(), 10, 32)
var ret *Thingy
if wg.GetKey(int(xx)) {
ret = NewBool(1)
} else {
ret = NewBool(0)
}
e.dataStack = append(e.dataStack, ret)
return e
}))
e = add(e, "WG.START", NewCode("WG.START", 1, func(ne *Engine, c *Thingy) *Engine {
CallbackState = ne
var port *Thingy
port, ne.dataStack = popStack(ne.dataStack)
portnum, _ := strconv.ParseInt(port.getString(), 10, 32)
wg.Start(800, 600, int(portnum), WgCallback)
return ne
}))
e = add(e, "glfw.CreateWindow", NewCode("glfw.CreateWindow", 2, func(ne *Engine, c *Thingy) *Engine {
var x, y, title *Thingy
x, ne.dataStack = popStack(ne.dataStack)
y, ne.dataStack = popStack(ne.dataStack)
title, ne.dataStack = popStack(ne.dataStack)
xx, _ := strconv.ParseInt(x.getString(), 10, 32)
yy, _ := strconv.ParseInt(y.getString(), 10, 32)
glfw.WindowHint(glfw.Resizable, glfw.False)
glfw.WindowHint(glfw.ContextVersionMajor, 2)
glfw.WindowHint(glfw.ContextVersionMinor, 1)
window, err := glfw.CreateWindow(int(xx), int(yy), title.getString(), nil, nil)
if err != nil {
panic(err)
}
ne.dataStack = pushStack(ne.dataStack, NewWrapper(window))
return ne
}))
return e
}
func EnsureGC() {
if gc == nil {
dest := wg.GetImage()
gc = draw2dimg.NewGraphicContext(dest)
}
}
