Example #1
0
void RenderVector(int frameNumber) {
  CanvasT *canvas = R_("Canvas");
  PointT *toDraw = R_("TriangleToDraw");
  MatrixStack2D *ms = R_("ms2d");

  float s = sin(frameNumber * 3.14159265f / 22.5f);
  float c = cos(frameNumber * 3.14159265f / 45.0f);

  StackReset(ms);
  PushTranslation2D(ms, -1.5f, -1.5f);
  PushScaling2D(ms, 20.0f + 10.0f * s, 20.0f + 10.0f * s);
  PushRotation2D(ms, (float)(frameNumber * -3));
  PushTranslation2D(ms, (float)(WIDTH/2) + c * (WIDTH/4), (float)(HEIGHT/2));

  Transform2D(R_("CrossToDraw"), R_("Cross"), 12, GetMatrix2D(ms, 0));

  if (effect == 0) {
    CanvasFill(canvas, 0);
    DrawPolyLine(canvas, R_("CrossToDraw"), 12, TRUE);
  }

  StackReset(ms);
  PushTranslation2D(ms, 5.0f, 10.0f);
  PushScaling2D(ms, 2.5f, 2.5f);
  PushRotation2D(ms, (float)(frameNumber*5*c));
  PushTranslation2D(ms, WIDTH/2 + c * 50, HEIGHT/2 + s * 20);

  Transform2D(R_("TriangleToDraw"), R_("Triangle"), 3, GetMatrix2D(ms, 0));

  frameNumber &= 255;

  if (frameNumber < 128)
    canvas->fg_col = frameNumber * 2;
  else 
    canvas->fg_col = (255 - frameNumber) * 2;

  if (effect == 1) {
    DrawTriangle(canvas,
                 toDraw[0].x, toDraw[0].y,
                 toDraw[1].x, toDraw[1].y,
                 toDraw[2].x, toDraw[2].y);
  }

  if (effect == 2) {
    DrawEllipse(canvas,
                toDraw[1].x, toDraw[1].y,
                30 + c * 15, 30 + s * 15);
  }
}
Example #2
0
static void Render(int frameNumber) {
  PointT *toDraw = triangleToDraw;

  float s = sin(frameNumber * 3.14159265f / 22.5f);
  float c = cos(frameNumber * 3.14159265f / 45.0f);

  StackReset(ms);
  PushTranslation2D(ms, -1.5f, -1.5f);
  PushScaling2D(ms, 20.0f + 10.0f * s, 20.0f + 10.0f * s);
  PushRotation2D(ms, (float)(frameNumber * -3));
  PushTranslation2D(ms, (float)(WIDTH/2) + c * (WIDTH/4), (float)(HEIGHT/2));

  Transform2D(crossToDraw, cross, 12, GetMatrix2D(ms, 0));

  if (effect == 0) {
    PixBufClear(canvas);
    DrawPolyLine(canvas, crossToDraw, 12, TRUE);
  }

  StackReset(ms);
  PushTranslation2D(ms, 5.0f, 10.0f);
  PushScaling2D(ms, 2.5f, 2.5f);
  PushRotation2D(ms, (float)(frameNumber*5*c));
  PushTranslation2D(ms, WIDTH/2 + c * 50, HEIGHT/2 + s * 20);

  Transform2D(triangleToDraw, triangle, 3, GetMatrix2D(ms, 0));

  frameNumber &= 255;

  if (frameNumber < 128)
    canvas->fgColor = frameNumber * 2;
  else 
    canvas->fgColor = (255 - frameNumber) * 2;

  if (effect == 1) {
    TriPoint p1 = { toDraw[0].x, toDraw[0].y };
    TriPoint p2 = { toDraw[1].x, toDraw[1].y };
    TriPoint p3 = { toDraw[2].x, toDraw[2].y };
    DrawTriangle(canvas, &p1, &p2, &p3);
  }

  if (effect == 2) {
    DrawEllipse(canvas,
                toDraw[1].x, toDraw[1].y,
                30 + c * 15, 30 + s * 15);
  }

  c2p1x1_8_c5_bm(canvas->data, GetCurrentBitMap(), WIDTH, HEIGHT, 0, 0);
}