kolibrios/programs/games/flappybird/flappybird.cpp
Kirill Lipatov (Leency) 861708b8e9 upload flappybird by zorggish
git-svn-id: svn://kolibrios.org@9011 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-07-06 12:38:12 +00:00

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 = 17;
static const int sizeY = 12;
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()
{
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 + 2 >= WINDOW_WIDTH - (BORDER_LEFT + BORDER_RIGHT - 1) ? WINDOW_WIDTH - x - width - 2 - (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 + 2) * (y - (gapY - headHeight)) + offset, (width + 2) - offset + trimHead, 1, x + offset, y);
//head down
for (int y = gapY + gapHeight; y < gapY + gapHeight + headHeight; ++y)
kos_PutImage(tubeHeadImage + (width + 2) * (y - (gapY + gapHeight)) + offset, (width + 2) - 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_WindowRedrawStatus(1);
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);
kos_WindowRedrawStatus(2);
}
void redrawGameWindow()
{
kos_WindowRedrawStatus(1);
//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);
kos_WindowRedrawStatus(2);
}
void drawGameoverWindow()
{
kos_WindowRedrawStatus(1);
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);
kos_WindowRedrawStatus(2);
}
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_WindowRedrawStatus(1);
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 + 2; ++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);
kos_WindowRedrawStatus(2);
}
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);
}