void TinyGLRenderer::setupCameraPerspective(float pitch, float heading, float fov) {
Renderer::setupCameraPerspective(pitch, heading, fov);
// NOTE: tinyGL viewport implementation needs to be checked as it doesn't behave the same as openGL
tglViewport(0, kTopBorderHeight, kOriginalWidth, kFrameHeight);
tglMatrixMode(TGL_PROJECTION);
tglLoadMatrixf(_projectionMatrix.getData());
tglMatrixMode(TGL_MODELVIEW);
tglLoadMatrixf(_modelViewMatrix.getData());
}
void GfxTinyGL::drawSprite(const Sprite *sprite) {
tglMatrixMode(TGL_TEXTURE);
tglLoadIdentity();
tglMatrixMode(TGL_MODELVIEW);
tglPushMatrix();
tglTranslatef(sprite->_pos.x(), sprite->_pos.y(), sprite->_pos.z());
TGLfloat modelview[16];
tglGetFloatv(TGL_MODELVIEW_MATRIX, modelview);
// We want screen-aligned sprites so reset the rotation part of the matrix.
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
if (i == j) {
modelview[i * 4 + j] = 1.0f;
} else {
modelview[i * 4 + j] = 0.0f;
}
}
}
tglLoadMatrixf(modelview);
tglDisable(TGL_LIGHTING);
tglBegin(TGL_POLYGON);
tglTexCoord2f(0.0f, 0.0f);
tglVertex3f(sprite->_width / 2, sprite->_height, 0.0f);
tglTexCoord2f(0.0f, 1.0f);
tglVertex3f(sprite->_width / 2, 0.0f, 0.0f);
tglTexCoord2f(1.0f, 1.0f);
tglVertex3f(-sprite->_width / 2, 0.0f, 0.0f);
tglTexCoord2f(1.0f, 0.0f);
tglVertex3f(-sprite->_width / 2, sprite->_height, 0.0f);
tglEnd();
tglEnable(TGL_LIGHTING);
tglPopMatrix();
}
