void SliceRenderer::drawOnScreen(int animationId, int animationFrame, int screenX, int screenY, float facing, float scale, Graphics::Surface &surface) {
if (scale == 0.0f) {
return;
}
_position.x = 0;
_position.y = 0;
_position.z = 0;
_facing = facing;
loadFrame(animationId, animationFrame);
float frameHeight = _frameSliceHeight * _frameSliceCount;
float frameSize = sqrt(_frameScale.x * 255.0f * _frameScale.x * 255.0f + _frameScale.y * 255.0f * _frameScale.y * 255.0f);
float size = scale / MAX(frameSize, frameHeight);
float s = sin(_facing);
float c = cos(_facing);
Matrix3x2 m_rotation(c, -s, 0.0f,
s, c, 0.0f);
Matrix3x2 m_frame(_frameScale.x, 0.0f, _framePos.x,
0.0f, _frameScale.y, _framePos.y);
Matrix3x2 m_scale_size_25_5(size, 0.0f, 0.0f,
0.0f, 25.5f, 0.0f);
Matrix3x2 m_translate_x_32k(1.0f, 0.0f, screenX,
0.0f, 1.0f, 32768.0f);
Matrix3x2 m_scale_64k_64(65536.0f, 0.0f, 0.0f,
0.0f, 64.0f, 0.0f);
Matrix3x2 m = m_scale_64k_64 * (m_translate_x_32k * (m_scale_size_25_5 * (m_rotation * m_frame)));
setupLookupTable(_m11lookup, m(0, 0));
setupLookupTable(_m12lookup, m(0, 1));
_m13 = m(0, 2);
setupLookupTable(_m21lookup, m(1, 0));
setupLookupTable(_m22lookup, m(1, 1));
_m23 = m(1, 2);
int frameY = screenY + (size / 2.0f * frameHeight);
int currentY = frameY;
float currentSlice = 0;
float sliceStep = 1.0f / size / _frameSliceHeight;
uint16 *frameLinePtr = (uint16 *)surface.getPixels() + 640 * frameY;
uint16 lineZbuffer[640];
while (currentSlice < _frameSliceCount) {
if (currentY >= 0 && currentY < 480) {
memset(lineZbuffer, 0xFF, 640 * 2);
drawSlice(currentSlice, false, frameLinePtr, lineZbuffer, currentY);
currentSlice += sliceStep;
currentY--;
frameLinePtr -= 640;
}
}
}
void Framework::Run()
{
if (m_init)
while (m_frame());
}