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#include "game.h"
using namespace std;
// these 2 are not used
static Timer Update;
static Timer Move;
LPDIRECT3DTEXTURE9 tower_image;
Sprite sTower[MAX_TOWERS];
LPDIRECT3DTEXTURE9 enemy_image;
Sprite sEnemy[MAX_ENEMIES];
LPDIRECT3DTEXTURE9 bullet_image;
Sprite sBullits[MAX_BULLITS];
LPDIRECT3DSURFACE9 back;
LPD3DXSPRITE sprite_handler;
bool fired;
vector<Sprite> vecEnemySprites;
HRESULT result;
//timing variable
long start = GetTickCount();
long gap = GetTickCount();
Timer update;
//initializes the game
int Game_Init(HWND hwnd)
{
//set random number seed
srand((unsigned int)time(NULL));
//create sprite handler object
result = D3DXCreateSprite(d3ddev, &sprite_handler);
if (result != D3D_OK)
return 0;
//load textures with "pink" as the transparent color
tower_image = LoadTexture("Graphics/Goodie.bmp", D3DCOLOR_XRGB(255,0,255));
if (tower_image == NULL)
return 0;
enemy_image = LoadTexture("Graphics/Baddie.bmp", D3DCOLOR_XRGB(255,0,255));
if (enemy_image == NULL)
return 0;
bullet_image = LoadTexture("Graphics/Bullet.bmp", D3DCOLOR_XRGB(255,0,255));
if (bullet_image == NULL)
return 0;
//load the background image
back = LoadSurface("Graphics/Background.bmp", NULL);
//initialize the sprite's properties
// x = 65
for (int i = 0; i < LEVEL_ONE_ENEMIES; ++i)
{
sEnemy[i] = Sprite(65, 0, 32, 32, 0, 2, 100, 50);
vecEnemySprites.push_back(sEnemy[i]);
}
//return okay
return 1;
}
//the main game loop
void Game_Run(HWND hwnd)
{
//make sure the Direct3D device is valid
if (d3ddev == NULL)
return;
//after short delay, ready for next frame?
//this keeps the game running at a steady frame rate
if (GetTickCount() - start >= 30)
{
//reset timing
start = GetTickCount();
for (int i = 0; i < 10; i++)
{
//sEnemy[i].mIsAlive = true;
sEnemy[i].MoveEnemy();
}
}
//create vector to update sprite position
D3DXVECTOR3* positions = 0; // create a pointer to D3DXVECTOR3
// positions now points to start of the array of D3DXVECTOR3's
positions = new D3DXVECTOR3[LEVEL_ONE_ENEMIES];
for (int i = 0; i < LEVEL_ONE_ENEMIES; i++)
{
positions[i].x = sEnemy[i].getX();
positions[i].y = sEnemy[i].getY();
positions[i].z = 0;
}
//start rendering
if (d3ddev->BeginScene())
{
//erase the entire background
d3ddev->StretchRect(back, NULL, backbuffer, NULL, D3DTEXF_NONE);
//start sprite handler
sprite_handler->Begin(D3DXSPRITE_ALPHABLEND);
for (int i = 0; i < LEVEL_ONE_ENEMIES; i++)
{
if (sEnemy[i].mIsAlive == true)
{
sprite_handler->Draw(
enemy_image,
NULL, NULL,
&positions[i],
D3DCOLOR_XRGB(255,255,255));
}
}
//stop drawing
sprite_handler->End();
//stop rendering
d3ddev->EndScene();
//display the back buffer on the screen
d3ddev->Present(NULL, NULL, NULL, NULL);
}
//check for escape key (to exit program)
if (KEY_DOWN(VK_ESCAPE))
PostMessage(hwnd, WM_DESTROY, 0, 0);
}
//frees memory and cleans up before the game ends
void Game_End(HWND hwnd)
{
if (tower_image != NULL)
tower_image->Release();
if (enemy_image != NULL)
enemy_image->Release();
if (back != NULL)
back->Release();
if (sprite_handler != NULL)
sprite_handler->Release();
}
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