forked from KolibriOS/kolibrios
436 lines
10 KiB
C++
436 lines
10 KiB
C++
#include <kosSyst.h>
|
|
#include <kosFile.h>
|
|
#include "images.hpp"
|
|
|
|
//Global const strings
|
|
const char HEADER_STRING[] = "Flappy bird";
|
|
const char CONTROL_STRING[] = "SPACEBAR TO JUMP";
|
|
const char GAMEOVER_STRING[] = "GAMEOVER";
|
|
const char ANY_KEY_STRING[] = "Press any key for restart";
|
|
const char SELECT_SPEED_STRING[] = "select the speed of the game";
|
|
const char FAST_STRING[] = "1 FAST";
|
|
const char SLOW_STRING[] = "2 SLOW";
|
|
|
|
//Global const variables
|
|
const int WINDOW_WIDTH = 400;
|
|
const int WINDOW_HEIGHT = 400;
|
|
const int BORDER_TOP = 24;
|
|
const int BORDER_LEFT = 5;
|
|
const int BORDER_RIGHT = 5;
|
|
const int BORDER_DOWN = 5;
|
|
|
|
enum GameState
|
|
{
|
|
GAMESTATE_MENU,
|
|
GAMESTATE_STARTED,
|
|
GAMESTATE_GAMEOVER
|
|
};
|
|
|
|
struct ScreenSize
|
|
{
|
|
int width;
|
|
int height;
|
|
};
|
|
|
|
class Bird
|
|
{
|
|
public:
|
|
static const int sizeX = 19;
|
|
static const int sizeY = 20;
|
|
static const int x = 100;
|
|
int prev_y;
|
|
int y;
|
|
int acceleration;
|
|
|
|
inline void initialize()
|
|
{
|
|
y = WINDOW_HEIGHT / 2;
|
|
acceleration = 0;
|
|
}
|
|
|
|
inline void move()
|
|
{
|
|
if (acceleration <= 30)
|
|
acceleration += 2;
|
|
prev_y = y;
|
|
y += acceleration / 10;
|
|
}
|
|
|
|
inline void jump()
|
|
{
|
|
acceleration = -50;
|
|
}
|
|
|
|
inline void draw()
|
|
{
|
|
kos_PutImage(birdImage, sizeX, sizeY, x, y);
|
|
}
|
|
};
|
|
|
|
class Tube
|
|
{
|
|
public:
|
|
static const int width = 50;
|
|
static const int gapHeight = 100;
|
|
static const int headHeight = 18;
|
|
int x;
|
|
int gapY;
|
|
|
|
inline void randomize()
|
|
{
|
|
x = WINDOW_WIDTH + 1;
|
|
gapY = rtlRand() % 200 + 50;
|
|
}
|
|
|
|
inline void move()
|
|
{
|
|
x -= 2;
|
|
if (x < -width - 2)
|
|
randomize();
|
|
}
|
|
|
|
void draw()
|
|
{
|
|
//cleanup
|
|
int pixels = (WINDOW_WIDTH - (BORDER_LEFT + BORDER_RIGHT - 1)) - (x + width + 2);
|
|
if (pixels >= -1)
|
|
{
|
|
pixels = (pixels == -1) ? 1 : 2;
|
|
kos_DrawBar(x + width, gapY - headHeight, pixels, headHeight, 0x00FFFF);
|
|
kos_DrawBar(x + width, gapY + gapHeight, pixels, headHeight, 0x00FFFF);
|
|
}
|
|
|
|
int offset = x >= 0 ? 0 : -x;
|
|
int trim = x + width >= WINDOW_WIDTH - (BORDER_LEFT + BORDER_RIGHT - 1) ? WINDOW_WIDTH - x - width - (BORDER_LEFT + BORDER_RIGHT - 1) : 0;
|
|
int trimHead = x + width >= WINDOW_WIDTH - (BORDER_LEFT + BORDER_RIGHT - 1) ? WINDOW_WIDTH - x - width - (BORDER_LEFT + BORDER_RIGHT - 1) : 0;
|
|
|
|
//top
|
|
for (int y = 0; y < gapY - headHeight; ++y)
|
|
kos_PutImage(tubeBodyImage + offset, width - offset + trim, 1, x + offset, y);
|
|
//head top
|
|
for (int y = gapY - headHeight; y < gapY; ++y)
|
|
kos_PutImage(tubeHeadImage + width * (y - (gapY - headHeight)) + offset, width - offset + trimHead, 1, x + offset, y);
|
|
//head down
|
|
for (int y = gapY + gapHeight; y < gapY + gapHeight + headHeight; ++y)
|
|
kos_PutImage(tubeHeadImage + width * (y - (gapY + gapHeight)) + offset, width - offset + trimHead, 1, x + offset, y);
|
|
//down
|
|
for (int y = gapY + gapHeight + headHeight; y < WINDOW_HEIGHT - (BORDER_TOP + BORDER_DOWN - 1); ++y)
|
|
kos_PutImage(tubeBodyImage + offset, width - offset + trim, 1, x + offset, y);
|
|
|
|
}
|
|
};
|
|
|
|
//Global variables
|
|
int loopDelay;
|
|
GameState gameState;
|
|
char scoreString[] = "Score: ";
|
|
bool scoreChanged;
|
|
int score;
|
|
Bird bird;
|
|
int tubeNumber;
|
|
Tube tubes[3];
|
|
int windowX;
|
|
int windowY;
|
|
|
|
//Function prototypes
|
|
void kos_Main();
|
|
void startGame();
|
|
ScreenSize getScreenSize();
|
|
void updateScoreString();
|
|
void WriteBorderedText(Word x, Word y, Byte fontType, Dword textColor, const char* textPtr, Dword textLen, Dword borderColor, int borderSize);
|
|
inline bool checkAddScore(Tube tube);
|
|
inline bool checkCollision(Tube tube);
|
|
|
|
void drawMenuWindow();
|
|
void drawGameWindow();
|
|
void redrawGameWindow();
|
|
void drawGameoverWindow();
|
|
|
|
//Functions
|
|
|
|
void startGame()
|
|
{
|
|
kos_SetMaskForEvents(0x7); /// 111 in binary
|
|
|
|
bird.initialize();
|
|
|
|
score = 0;
|
|
memset((Byte*)scoreString + 6, ' ', 3);
|
|
updateScoreString();
|
|
|
|
tubeNumber = 1;
|
|
tubes[0].randomize();
|
|
|
|
gameState = GAMESTATE_STARTED;
|
|
drawGameWindow();
|
|
}
|
|
|
|
ScreenSize getScreenSize()
|
|
{
|
|
Dword result;
|
|
__asm {
|
|
push 14 //System function 14
|
|
pop eax
|
|
int 0x40
|
|
mov result, eax
|
|
}
|
|
ScreenSize screenSize;
|
|
screenSize.height = (result & 0xFFFF) + 1; //last two bytes
|
|
screenSize.width = (result >> 16) + 1; //first two bytes
|
|
return screenSize;
|
|
}
|
|
|
|
void kos_Main()
|
|
{
|
|
rtlSrand( kos_GetSystemClock() );
|
|
|
|
//Centring window
|
|
ScreenSize screenSize = getScreenSize();
|
|
windowX = (screenSize.width - WINDOW_WIDTH) / 2;
|
|
windowY = (screenSize.height - WINDOW_HEIGHT) / 2;
|
|
|
|
gameState = GAMESTATE_MENU;
|
|
|
|
kos_SetMaskForEvents(0x27); // 100111 in binary
|
|
|
|
while( true )
|
|
{
|
|
switch (gameState)
|
|
{
|
|
case GAMESTATE_STARTED:
|
|
kos_Pause(loopDelay);
|
|
|
|
bird.move();
|
|
|
|
//Adding new tubes
|
|
if ((tubeNumber == 1 || tubeNumber == 2) && (tubes[tubeNumber - 1].x < (WINDOW_WIDTH - WINDOW_WIDTH / 3)))
|
|
tubes[tubeNumber++].randomize();
|
|
|
|
//Processing all tubes
|
|
scoreChanged = false;
|
|
for (int i = 0; i < tubeNumber; ++i)
|
|
{
|
|
//Adding score
|
|
if (checkAddScore(tubes[i]))
|
|
{
|
|
++score;
|
|
scoreChanged = true;
|
|
}
|
|
|
|
//Check collision with bird
|
|
if (checkCollision(tubes[i]))
|
|
{
|
|
gameState = GAMESTATE_GAMEOVER;
|
|
continue;
|
|
}
|
|
|
|
//Move tube
|
|
tubes[i].move();
|
|
}
|
|
|
|
if (scoreChanged)
|
|
updateScoreString();
|
|
|
|
//Cheking the bird is too high or low
|
|
if (bird.y + bird.sizeY > WINDOW_HEIGHT - (BORDER_TOP + BORDER_DOWN - 1) || bird.y < 0)
|
|
{
|
|
gameState = GAMESTATE_GAMEOVER;
|
|
continue;
|
|
}
|
|
|
|
redrawGameWindow();
|
|
|
|
switch (kos_CheckForEvent())
|
|
{
|
|
case 1:
|
|
drawGameWindow();
|
|
break;
|
|
|
|
case 2: // key pressed
|
|
Byte keyCode;
|
|
kos_GetKey(keyCode);
|
|
if (keyCode == 32) //if pressed key is spacebar
|
|
bird.jump();
|
|
break;
|
|
|
|
case 3: // button pressed; we have only one button, close
|
|
kos_ExitApp();
|
|
}
|
|
break;
|
|
|
|
case GAMESTATE_GAMEOVER:
|
|
drawGameoverWindow();
|
|
|
|
switch (kos_WaitForEvent())
|
|
{
|
|
case 1:
|
|
drawGameoverWindow();
|
|
break;
|
|
|
|
case 2:
|
|
startGame();
|
|
break;
|
|
|
|
case 3:
|
|
kos_ExitApp();
|
|
}
|
|
break;
|
|
|
|
case GAMESTATE_MENU:
|
|
switch (kos_WaitForEvent())
|
|
{
|
|
case 1:
|
|
drawMenuWindow();
|
|
break;
|
|
|
|
case 2:
|
|
Byte keyCode;
|
|
kos_GetKey(keyCode);
|
|
if (keyCode == 0x31 || keyCode == 0x61) //1 or NumPad1
|
|
{
|
|
loopDelay = 1;
|
|
startGame();
|
|
}
|
|
else if (keyCode == 0x32 || keyCode == 0x62) //2 or NumPad2
|
|
{
|
|
loopDelay = 2;
|
|
startGame();
|
|
}
|
|
break;
|
|
|
|
case 3:
|
|
kos_ExitApp();
|
|
|
|
case 6:
|
|
Dword result;
|
|
__asm {
|
|
push 37 //Function 37 - work with mouse
|
|
pop eax
|
|
mov ebx, 3 //Subfunction 3 - states and events of the mouse buttons
|
|
int 0x40
|
|
mov result, eax
|
|
}
|
|
result &= 0x100; //bit 8 is set = left button is pressed
|
|
if ( result )
|
|
{
|
|
Dword coordinates;
|
|
__asm {
|
|
push 37 //Function 37 - work with mouse
|
|
pop eax
|
|
mov ebx, 1 //Subfunction 1 - coordinates of the mouse relative to the window
|
|
int 0x40
|
|
mov coordinates, eax
|
|
}
|
|
int clickX = coordinates >> 16;
|
|
int clickY = coordinates & 0xFFFF;
|
|
if (clickX >= 100 && clickX < 390 && clickY >= 170 && clickY < 230)
|
|
{
|
|
loopDelay = 1;
|
|
startGame();
|
|
}
|
|
else if (clickX >= 100 && clickX < 390 && clickY >= 270 && clickY < 330)
|
|
{
|
|
loopDelay = 2;
|
|
startGame();
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void drawGameWindow()
|
|
{
|
|
kos_DefineAndDrawWindow(windowX, windowY, WINDOW_WIDTH, WINDOW_HEIGHT, 0x33, 0x00FFFF, 0, 0, (Dword)HEADER_STRING);
|
|
bird.draw();
|
|
for (int i = 0; i < tubeNumber; ++i)
|
|
tubes[i].draw();
|
|
kos_WriteTextToWindow(10, 10, 0x81, 0x000000, scoreString, 0);
|
|
kos_WriteTextToWindow(10, 30, 0x81, 0x000000, CONTROL_STRING, 0);
|
|
}
|
|
void redrawGameWindow()
|
|
{
|
|
//cleaning the screen
|
|
if (scoreChanged)
|
|
kos_DrawBar(80, 10, 50, 15, 0x00FFFF);
|
|
if (bird.y > bird.prev_y)
|
|
kos_DrawBar(bird.x, bird.prev_y, bird.sizeX, bird.y - bird.prev_y, 0x00FFFF);
|
|
else
|
|
kos_DrawBar(bird.x, bird.y + bird.sizeY, bird.sizeX, bird.prev_y - bird.y, 0x00FFFF);
|
|
|
|
bird.draw();
|
|
for (int i = 0; i < tubeNumber; ++i)
|
|
tubes[i].draw();
|
|
|
|
kos_WriteTextToWindow(10, 10, 0x81, 0x000000, scoreString, 0);
|
|
kos_WriteTextToWindow(10, 30, 0x81, 0x000000, CONTROL_STRING, 0);
|
|
}
|
|
|
|
void drawGameoverWindow()
|
|
{
|
|
kos_DefineAndDrawWindow(windowX, windowY, WINDOW_WIDTH, WINDOW_HEIGHT, 0x33, 0x000000, 0, 0, (Dword)HEADER_STRING);
|
|
kos_WriteTextToWindow(125, 50, 0x82, 0xFFFFFF, GAMEOVER_STRING, 0);
|
|
kos_WriteTextToWindow(135, 100, 0x81, 0xFFFFFF, scoreString, 0);
|
|
kos_WriteTextToWindow(50, 150, 0x81, 0xFFFFFF, ANY_KEY_STRING, 0);
|
|
}
|
|
|
|
void WriteBorderedText(Word x, Word y, Byte fontType, Dword textColor, const char *textPtr, Dword textLen, Dword borderColor, int borderSize)
|
|
{
|
|
kos_WriteTextToWindow(x - borderSize, y - borderSize, fontType, borderColor, textPtr, textLen);
|
|
kos_WriteTextToWindow(x - borderSize, y + borderSize, fontType, borderColor, textPtr, textLen);
|
|
kos_WriteTextToWindow(x + borderSize, y - borderSize, fontType, borderColor, textPtr, textLen);
|
|
kos_WriteTextToWindow(x + borderSize, y + borderSize, fontType, borderColor, textPtr, textLen);
|
|
kos_WriteTextToWindow(x, y, fontType, textColor, textPtr, textLen);
|
|
}
|
|
|
|
void drawMenuWindow()
|
|
{
|
|
kos_DefineAndDrawWindow(windowX, windowY, WINDOW_WIDTH, WINDOW_HEIGHT, 0x33, 0x00FFFF, 0, 0, (Dword)HEADER_STRING);
|
|
|
|
WriteBorderedText(85, 40, 0x4, 0xFFFFFF, HEADER_STRING, 6, 0x000000, 2);
|
|
WriteBorderedText(185, 80, 0x84, 0xFFFFFF, HEADER_STRING + 7, 0, 0x000000, 2);
|
|
|
|
RGB* pos = &tubeHeadImage[0];
|
|
for (int x = 100 - 1; x >= 100 - Tube::headHeight; --x)
|
|
for (int y = 170; y < 170 + Tube::width; ++y)
|
|
{
|
|
kos_PutPixel(x, y, (pos->r << 16) + (pos->g << 8) + (pos->b)); //first tube
|
|
kos_PutPixel(x, y+100, (pos->r << 16) + (pos->g << 8) + (pos->b)); //second tube
|
|
++pos;
|
|
}
|
|
|
|
//First button
|
|
for(int x = 100; x < WINDOW_WIDTH - (BORDER_LEFT + BORDER_RIGHT - 1); ++x)
|
|
kos_PutImage(tubeBodyImage, 1, Tube::width, x, 170);
|
|
WriteBorderedText(140, 185, 0x82, 0x000000, FAST_STRING, 0, 0xFFFFFF, 1);
|
|
|
|
//Second button
|
|
for (int x = 100; x < WINDOW_WIDTH - (BORDER_LEFT + BORDER_RIGHT - 1); ++x)
|
|
kos_PutImage(tubeBodyImage, 1, Tube::width, x, 270);
|
|
WriteBorderedText(140, 285, 0x82, 0x000000, SLOW_STRING, 0, 0xFFFFFF, 1);
|
|
}
|
|
|
|
inline bool checkCollision(Tube tube)
|
|
{
|
|
return ((tube.x <= (bird.x + bird.sizeX) && tube.x + tube.width >= bird.x)
|
|
&& (bird.y <= tube.gapY || bird.y + bird.sizeY >= tube.gapY + tube.gapHeight));
|
|
}
|
|
|
|
inline bool checkAddScore(Tube tube)
|
|
{
|
|
//int diff = bird.x - (tube.x + tube.width);
|
|
//return diff == 0 || diff == 1;
|
|
return ((bird.x - (tube.x + tube.width)) >> 1) == 0;
|
|
}
|
|
|
|
void updateScoreString()
|
|
{
|
|
int temp = score;
|
|
int index = 9;
|
|
do {
|
|
scoreString[index--] = temp % 10 + '0';
|
|
temp /= 10;
|
|
} while (temp > 0);
|
|
} |