protected virtual void renderTexture(GuiShader shader, GuiTexture tex, Vector2 scale, int x, int y)
{
shader.start();
GL.BindVertexArray(GuiRenderer.GUIquad.vaoID);
GL.EnableVertexAttribArray(0);
var unit = new Vector2(1f / Game.INSTANCE.ClientSize.Width, 1f / Game.INSTANCE.ClientSize.Height);
float width = tex.textureSize.Width;
float height = tex.textureSize.Height;
float scaledWidth = width * scale.X;
float scaledHeight = height * scale.Y;
float posX = x + scaledWidth / 2;
float posY = -y - scaledHeight / 2;
var pos = new Vector2(posX, posY) * unit;
var mat = MatrixHelper.createTransformationMatrix(pos * 2 - Vector2.UnitX + Vector2.UnitY, scale * new Vector2(width, height) * unit);
shader.loadTransformationMatrix(mat);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, tex.textureID);
GL.DrawArrays(shader.renderType, 0, 4);
GL.DisableVertexAttribArray(0);
GL.BindVertexArray(0);
shader.stop();
}
public override void render(GuiShader shader, int mouseX, int mouseY)
{
for (int i = 0; i < buttons.Count; i++)
{
buttons[i].render(shader, mouseX, mouseY);
}
//render stuff
}
protected virtual void renderTexture(GuiShader shader, GuiTexture tex)
{
var ratio = new Vector2((float)tex.textureSize.Width / Game.INSTANCE.ClientSize.Width, (float)tex.textureSize.Height / Game.INSTANCE.ClientSize.Height);
var mat = MatrixHelper.createTransformationMatrix(tex.pos * 2, tex.scale * ratio);
shader.loadTransformationMatrix(mat);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, tex.textureID);
GL.DrawArrays(shader.renderType, 0, 4);
}
public GuiRenderer()
{
shader = new GuiShader("gui");
var texture = GraphicsManager.loadTexture("gui/cross", true);
if (texture != null)
{
var tex = new GuiTexture(texture.textureID, texture.textureSize, Vector2.Zero, Vector2.One * 1.4f);
crosshairGui = new GuiCrosshair(tex);
}
hudGui = new GuiHUD();
}
protected virtual void drawBackground(GuiShader shader, GuiTexture tex)
{
var sizeX = tex.textureSize.Width * tex.scale.X;
var sizeY = tex.textureSize.Height * tex.scale.Y;
var countX = Game.INSTANCE.ClientSize.Width / sizeX;
var countY = Game.INSTANCE.ClientSize.Height / sizeY;
for (int x = 0; x <= countX; x++)
{
for (int y = 0; y <= countY; y++)
{
renderTexture(shader, tex, (int)(x * sizeX), (int)(y * sizeY));
}
}
}
public override void render(GuiShader shader, int mouseX, int mouseY)
{
GuiTexture tex = GUI_BUTTON;
if (isMouseOver(mouseX, mouseY))
{
tex = GUI_BUTTON_HOVER;
}
if (centered)
{
posX = (int)(Game.INSTANCE.ClientSize.Width / 2f - tex.textureSize.Width * scale.X / 2f);
renderTexture(shader, tex, scale, posX, posY);
}
else
{
renderTexture(shader, tex, scale, posX, posY);
}
}
public override void render(GuiShader shader, int mouseX, int mouseY)
{
drawBackground(shader, background);
base.render(shader, mouseX, mouseY);
}
protected virtual void renderTexture(GuiShader shader, GuiTexture tex, int x, int y)
{
renderTexture(shader, tex, tex.scale, x, y);
}
public virtual void render(GuiShader shader, int mouseX, int mouseY)
{
}
public override void render(GuiShader shader, int mouseX, int mouseY)
{
renderTexture(shader, gui, 0, 0);
}
public override void render(GuiShader shader, int mouseX, int mouseY)
{
renderTexture(shader, crosshairTexture);
}