private void renderCursor(float x, float y, Context c) {
if (blinkTime < blinkPeriod / 2) {
GL11.glPushAttrib(GL11.GL_COLOR_BUFFER_BIT);
GL14.glBlendFuncSeparate(
GL11.GL_ONE_MINUS_DST_COLOR, GL11.GL_ZERO, GL11.GL_ZERO, GL11.GL_ZERO);
GL20.glBlendEquationSeparate(GL14.GL_FUNC_ADD, GL14.GL_FUNC_ADD);
c.resetColor();
c.pushTransform();
c.appendTransform(Matrix.translation(x, y, 0));
font.getSprite(getCursorChar()).render(c);
c.popTransform();
GL11.glPopAttrib();
}
}
public void glBlendFuncSeparate(int srcRGB, int dstRGB, int srcAlpha, int dstAlpha) {
GL14.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
}
public void CalculateLighting() {
mShadowMaskObject.Begin();
{
glPushAttrib(GL_COLOR_BUFFER_BIT);
{
mShadowMaskObject.Clear();
// additive blending
glBlendFunc(GL_ONE, GL_ONE);
// Draw lights:
// ambient lighting
glPushMatrix();
{
glLoadIdentity();
glColor4f(1, 1, 1, mAmbientLighting);
glBegin(GL_QUADS);
{
glVertex2f(0, 0);
glVertex2f(mGameWindow.Width(), 0);
glVertex2f(mGameWindow.Width(), mGameWindow.Height());
glVertex2f(0, mGameWindow.Height());
}
glEnd();
}
glPopMatrix();
Vector2 middleScreen =
mCamera.ScreenToWorld(
new Vector2(mGameWindow.Width(), mGameWindow.Height()).DividedBy(2));
Vector2 topLeft = mCamera.ScreenToWorld(new Vector2(0, 0));
Vector2 topRight = mCamera.ScreenToWorld(new Vector2(mGameWindow.Width(), 0));
Vector2 bottomRight =
mCamera.ScreenToWorld(new Vector2(mGameWindow.Width(), mGameWindow.Height()));
Vector2 bottomLeft = mCamera.ScreenToWorld(new Vector2(0, mGameWindow.Height()));
SimplePolygon screen = new SimplePolygon(this, middleScreen);
screen.AddVertexAbsolute(topLeft);
screen.AddVertexAbsolute(topRight);
screen.AddVertexAbsolute(bottomRight);
screen.AddVertexAbsolute(bottomLeft);
mLevel.DrawLights(screen);
// blend lights with shadow:
glPushMatrix();
{
glLoadIdentity();
glBlendFuncSeparate(GL_ONE, GL_ZERO, GL_ONE_MINUS_DST_ALPHA, GL_ZERO);
glColor3f(0, 0, 0);
glBegin(GL_QUADS);
{
glVertex2f(0, 0);
glVertex2f(mGameWindow.Width(), 0);
glVertex2f(mGameWindow.Width(), mGameWindow.Height());
glVertex2f(0, mGameWindow.Height());
}
glEnd();
}
glPopMatrix();
}
glPopAttrib();
}
mShadowMaskObject.End();
}