I unzipped the archive of Day 008 (the Day 007 file works fine).
In Casey's tutorial, inside the window the "blocks" were moving,
but when I run this file, the window opens and the sound starts to play,
but the "graphical blocks" doesn't move.
I have a Windows 10.
Does anyone know why this does happen and how to fix this?
In Casey's tutorial, inside the window the "blocks" were moving,
but when I run this file, the window opens and the sound starts to play,
but the "graphical blocks" doesn't move.
I have a Windows 10.
Does anyone know why this does happen and how to fix this?
Edited by shuravi
on
Reason: Initial post
I have the exact same issue on my machine. The problem is that the gradient function renders the gradient based on the offset passed in.
The BlueOffset and GreenOffset parameters control the horizontal and vertical scaling of the gradient, respectively. RenderWeirdGradient is being called in the main loop here, after the XInput handling:
XOffset and YOffset are initialized to zero, and are updated based on the analog stick input. If you don't have a controller plugged in, or if XInput failed to register for whatever reason, XOffset and YOffset will remain 0, and the gradient won't move.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | internal void
RenderWeirdGradient(win32_offscreen_buffer *Buffer, int BlueOffset, int GreenOffset)
{
// TODO(casey): Let's see what the optimizer does
uint8 *Row = (uint8 *)Buffer->Memory;
for(int Y = 0;
Y < Buffer->Height;
++Y)
{
uint32 *Pixel = (uint32 *)Row;
for(int X = 0;
X < Buffer->Width;
++X)
{
uint8 Blue = (X + BlueOffset);
uint8 Green = (Y + GreenOffset);
*Pixel++ = ((Green << 8) | Blue);
}
Row += Buffer->Pitch;
}
}
|
The BlueOffset and GreenOffset parameters control the horizontal and vertical scaling of the gradient, respectively. RenderWeirdGradient is being called in the main loop here, after the XInput handling:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | // NOTE(casey): Graphics test
int XOffset = 0;
int YOffset = 0;
...
while(GlobalRunning)
{
...
// TODO(casey): Should we poll this more frequently
for (DWORD ControllerIndex = 0;
ControllerIndex < XUSER_MAX_COUNT;
++ControllerIndex)
{
XINPUT_STATE ControllerState;
if(XInputGetState(ControllerIndex, &ControllerState) == ERROR_SUCCESS)
{
// NOTE(casey): This controller is plugged in
// TODO(casey): See if ControllerState.dwPacketNumber increments too rapidly
XINPUT_GAMEPAD *Pad = &ControllerState.Gamepad;
/* more button stuff */
int16 StickX = Pad->sThumbLX;
int16 StickY = Pad->sThumbLY;
XOffset += StickX >> 12;
YOffset += StickY >> 12;
}
else
{
// NOTE(casey): The controller is not available
}
RenderWeirdGradient(&GlobalBackbuffer, XOffset, YOffset);
...
}
|
XOffset and YOffset are initialized to zero, and are updated based on the analog stick input. If you don't have a controller plugged in, or if XInput failed to register for whatever reason, XOffset and YOffset will remain 0, and the gradient won't move.
Edited by Joshua Donahue
on