virtual int render()
{
STX_TRY;
// ----- Input update ----
mI->Input->Update ();
// ----- Input ----
mDelta = mI->Render->GetFrameTime() / 1000.0f;
if (mI->Input->IsKeyPressed (KEY_RIGHT)) mScale += mSpeedScaling * mDelta;
if (mI->Input->IsKeyPressed (KEY_LEFT)) mScale -= mSpeedScaling * mDelta;
mAngle += mSpeedRotation * mDelta;
if (mScale < 0) mScale = 0;
// ----- Updating entities attributes -----
mBack.SetAngleXYZ (0, 0, -mAngle);
mRocket.SetAngleXYZ (0, 0, mAngle);
mRocket.SetScale (mScale, mScale);
mBeetle.SetPosition ((float) mI->Input->GetMouseX(), (float) mI->Input->GetMouseY(), 5);
// ----- Check collisions -----
mTextSmallWhite.SetText ("No collision between the groups we are checking");
if (mI->Entity2dManager->IsCollision (&mRocket, "engines", &mBeetle, "beetle_boy_head"))
mTextSmallWhite.SetText ("Collision between rocket boy head and engines");
if (mI->Entity2dManager->IsCollision (&mRocket, "rocket_head", &mBeetle, "beetle_head"))
mTextSmallWhite.SetText ("Collision between rokect head and beetle head");
if (mI->Entity2dManager->IsCollision (&mRocket, "rocket_boy_head", &mBeetle, "beetle_boy_head"))
mTextSmallWhite.SetText ("Collision between rocket boy head and beetle boy head");
if (mI->Entity2dManager->IsCollision (&mBeetle, "beetle_boy_head", &mSwordMaster, "sword"))
mTextSmallWhite.SetText ("Collision between beetle boy head and the sword");
// ----- Render -----
mI->Render->BeginScene ();
mI->Entity2dManager->RenderEntities2d ();
mI->Entity2dManager->RenderCollisionAreas (255, 0, 0, 255);
//mI->Entity2dManager->RenderGridAreas (255, 255, 0, 255);
mI->Render->EndScene ();
STX_CATCH;
return 0;
}
virtual int render()
{
STX_TRY;
mI->Input->Update ();
// ----- Delta Time -----
fElapsedTime = mI->Render->GetFrameTime() / 1000.0f;
// ----- Text -----
stx_strlcpy (szText, "Move the mouse left and right and watch the tank try to follow!\n", 2048);
stx_strlcat (szText, "Press Left Mouse button to fire!\n", 2048);
stx_strlcat (szText, "Press 'f' to toggle freezing the tank movement (debug)\n", 2048);
stx_snprintf(szBuf, 2048, "%d, %d\n", mI->Input->GetMouseX(), mI->Input->GetMouseY() );
stx_strlcat (szText, szBuf, 2048);
stx_snprintf(szBuf, 2048, "%.3f, %.3f\n", g_vecPlayer_Pos.x, g_vecPlayer_Pos.y);
stx_strlcat (szText, szBuf, 2048);
stx_snprintf(szBuf, 2048, "Muzzle angle %.3f\n", g_fGunAngle);
stx_strlcat (szText, szBuf, 2048);
stx_snprintf(szBuf, 2048, "Tank velocity %.3f\n", g_vecPlayer_Velocity.x);
stx_strlcat (szText, szBuf, 2048);
mTextSmallWhite.SetText (szText);
// Position the mouse cursor
cursor.SetPosition((float)mI->Input->GetMouseX(), (float)mI->Input->GetMouseY(), 1);
// "Freeze" tank except allow gun to rotate
if (mI->Input->OnKeyPress(KEY_f))
g_bToggleFreezeTank = !g_bToggleFreezeTank;
ULONG Direction = 0;
float deltaX = g_vecPlayer_Pos.x - mI->Input->GetMouseX();
if (!g_bToggleFreezeTank && fabs(deltaX) > g_Epsilon)
{
if (deltaX < 0)
{
Direction |= DIR_RIGHT;
tank.SetSequence(1);
}
else
if (deltaX > 0)
{
Direction |= DIR_LEFT;
tank.SetSequence(2);
}
}
else
{
// Stop the animation if not moving
tank.SetSequence(0);
}
// Any movement?
if ( Direction && !g_bToggleFreezeTank )
{
Player_Move( Direction, g_fSpeed * fElapsedTime, true );
}
//---------------------------
// Update the player
//---------------------------
Player_Update( fElapsedTime );
//---------------------------
// Move and rotate the barrel
// Note: there would normally be a class representing the whole tank
//---------------------------
float fMouse2TankX = tank.GetPosX() - mI->Input->GetMouseX();
float fMouse2TankY = tank.GetPosY() - mI->Input->GetMouseY(); // y position going down
// Clamp. Mouse is below tank
if (fMouse2TankY < 0.0f)
fMouse2TankY = 0.0f;
g_fGunAngle = atan2(fMouse2TankY, fMouse2TankX) * 180.0f / fPI; // in degrees
g_fGunAngle -= 90.0f; // barrel is initially pointing up (in image). atan2() w.r.t x-axis (pointing right)
barrel.SetAngleXYZ(0.0f, 0.0f, g_fGunAngle);
// Set position of barrel (child) on the tank (parent)
g_vecBarrel.x = tank.GetPosX();
g_vecBarrel.y = tank.GetPosY();
barrel.SetPosition(g_vecBarrel.x, g_vecBarrel.y, 0);
// Move the tank (player)
tank.SetPosition(g_vecPlayer_Pos.x, g_vecPlayer_Pos.y, 1);
tankShadow.SetPosition(tank.GetPosX(), tank.GetPosY() + 50, 0); // location is tank HotSpot plus an offset of 50
//---------------------------
// Fire weapon!!
//---------------------------
if (5 && mI->Input->OnMouseButtonPress(MBUTTON_LEFT))
{
// Initial bullet position (following code is rather verbose and could be combined into less lines
// but did it that way to explain the math.
float angleDegrees = barrel.GetAngleZ() + 90.0f;
float angleRadians = angleDegrees * fPI / 180.0f;
float fX = barrel.GetPosX() - cosf(angleRadians) * BARREL_LENGTH;
float fY = barrel.GetPosY() - sinf(angleRadians) * BARREL_LENGTH;
bullet.SetAngleXYZ(0, 0, angleDegrees - 90.0f);
g_vecBullet_Pos = D3DXFROMWINEVECTOR3(fX, fY, 0.0f);
bullet.SetPosition(g_vecBullet_Pos.x, g_vecBullet_Pos.y, 0);
// Initial bullet velocity
D3DXFROMWINEMATRIX mtxRotate;
D3DXFROMWINEVECTOR3 vecVelDir = D3DXFROMWINEVECTOR3(-1.0f, 0.0f, 0.0f);
D3DXFROMWINEMatrixRotationZ( &mtxRotate, angleRadians);
D3DXFROMWINEVec3TransformNormal( &vecVelDir, &vecVelDir, &mtxRotate );
g_vecBullet_Velocity = vecVelDir * BULLET_SPEED;
// Show blast!
g_fMuzzleFlashTimer = 0.05f;
muzzleFlash.SetPosition(g_vecBullet_Pos.x, g_vecBullet_Pos.y, 0);
g_bBulletDead = false;
// Make sound! (no sound lib hooked up but this is where you would do it.
STX_Service::GetAudioInstance()->Play("tankfire1");
}
// Update the single bullet
if (!g_bBulletDead)
{
bullet.SetShow(true);
Bullet_Update( fElapsedTime, &bullet );
bullet.SetPosition(g_vecBullet_Pos.x, g_vecBullet_Pos.y, 0);
}
else
{
bullet.SetShow(false);
}
//---------------------------
// Render muzzle flash effect
//---------------------------
g_fMuzzleFlashTimer -= fElapsedTime;
if (g_fMuzzleFlashTimer > 0.0f)
{
muzzleFlash.SetShow(true);
}
else
{
muzzleFlash.SetShow(false);
g_fMuzzleFlashTimer = 0.0f;
}
//-----------------
// Render the scene
//-----------------
mI->Render->BeginScene ();
mI->Render->ClearViewPort (160, 160, 160);
mI->Render->SetViewPort2d (0, 0, mI->Window->GetWidth(), mI->Window->GetHeight());
mI->Entity2dManager->RenderEntities2d ( );
// Render GUI layer
mI->Entity2dManager->RenderEntities2d (1);
//???mI->Render->ShowFpsInWindowTitle();
// MUST call this to update FMOD
STX_Service::GetAudioInstance()->Update();
mI->Render->EndScene ();
STX_CATCH;
return 0;
}
