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#include <SDL/SDL_gfxPrimitives.h>
#include "constants.h"
#include "gates_game.h"
#include "random.h"
GatesGame :: GatesGame( SFCave *p, int w, int h, int diff )
: Game( p, w, h, diff )
{
gameName = "Gates";
difficulty = MENU_DIFFICULTY_EASY;
blockUpdateRate = 200;
terrain = new Terrain( w, h );
player = new Player( w, h );
highScore = 0;
}
GatesGame :: ~GatesGame()
{
// terrain and player get deleted by parent class
}
void GatesGame :: init()
{
blockHeight = 80;
blockWidth = 20;
lastGateBottomY = 0;
gateDistance = 75;
nextGate = nextInt( 50 ) + gateDistance;
gapHeight = 75;
switch( difficulty )
{
case MENU_DIFFICULTY_EASY:
gapHeight = 75;
player->setMovementInfo( 0.4, 0.6, 4, 5 );
break;
case MENU_DIFFICULTY_NORMAL:
gapHeight = 50;
player->setMovementInfo( 0.4, 0.6, 4, 5 );
break;
case MENU_DIFFICULTY_HARD:
gapHeight = 25;
player->setMovementInfo( 0.6, 0.8, 6, 7 );
break;
case MENU_DIFFICULTY_CUSTOM:
{
// Read custom difficulty settings for this game
gapHeight = parent->loadIntSetting( "Gates_custom_gapHeight", 75 );
double thrust = parent->loadDoubleSetting( "Gates_custom_player_thrust", 0.4 );
double gravity = parent->loadDoubleSetting( "Gates_custom_player_gravity", 0.6 );
double maxUp = parent->loadDoubleSetting( "Gates_custom_player_maxupspeed", 4.0 );
double maxDown = parent->loadDoubleSetting( "Gates_custom_player_maxdownspeed", 5.0 );
player->setMovementInfo( thrust, gravity, maxUp, maxDown );
break;
}
}
for ( int i = 0 ; i < BLOCKSIZE ; ++i )
blocks[i].y( -1 );
Game :: init();
}
void GatesGame :: update( int state )
{
Game::update( state );
// Game logic goes here
if ( state == STATE_PLAYING )
{
if ( nrFrames % 3 == 0 )
score ++;
if ( nrFrames % 500 == 0 )
{
if ( gapHeight > 75 )
gapHeight -= 5;
}
// Slightly random gap distance
if ( nrFrames >= nextGate )
{
nextGate = nrFrames + nextInt( 50 ) + gateDistance;
addGate();
}
if ( checkCollisions() )
{
parent->changeState( STATE_CRASHING );
return;
}
terrain->moveTerrain( 5 );
moveBlocks( 5 );
player->move( press );
}
}
void GatesGame :: draw( SDL_Surface *screen )
{
Game::preDraw( screen );
if ( parent->getState() == STATE_PLAYING )
{
// Screen drawing goes here
terrain->drawTerrain( screen );
player->draw( screen );
drawBlocks( screen );
}
else
{
// Screen drawing goes here
terrain->drawTerrain( screen );
drawBlocks( screen );
player->draw( screen );
}
Game::draw( screen );
}
void GatesGame :: addGate()
{
printf( "gapHeight = %d\n", gapHeight );
for ( int i = 0 ; i < BLOCKSIZE ; ++i )
{
if ( blocks[i].y() == -1 )
{
int x1 = sWidth;
int y1 = terrain->getMapTop(50);
int b1Height = nextInt(terrain->getMapBottom( 50 ) - terrain->getMapTop(50) - gapHeight);
// See if height between last gate and this one is too big
if ( b1Height - 100 > lastGateBottomY )
b1Height -= 25;
else if ( b1Height + 100 < lastGateBottomY )
b1Height += 25;
lastGateBottomY = b1Height;
int x2 = sWidth;
int y2 = y1 + b1Height + gapHeight;
int b2Height = terrain->getMapBottom( 50 ) - y2;
blocks[i].setRect( x1, y1, blockWidth, b1Height );
blocks[i+1].setRect( x2, y2, blockWidth, b2Height );
break;
}
}
}
void GatesGame :: moveBlocks( int amountToMove )
{
for ( int i = 0 ; i < BLOCKSIZE ; ++i )
{
if ( blocks[i].y() != -1 )
{
blocks[i].moveBy( -amountToMove, 0 );
if ( blocks[i].x() + blocks[i].y() < 0 )
blocks[i].y( -1 );
}
}
}
void GatesGame :: drawBlocks( SDL_Surface *screen )
{
for ( int i = 0 ; i < BLOCKSIZE ; ++i )
{
if ( blocks[i].y() != -1 )
{
SDL_Rect r = blocks[i].getRect();
SDL_FillRect( screen, &r, SDL_MapRGB( screen->format, 100, 100, 255 ) );
}
}
}
bool GatesGame :: checkCollisions()
{
// Check collisions with blocks
for ( int i = 0 ; i < BLOCKSIZE ; ++i )
{
if ( blocks[i].y() != -1 )
{
if ( blocks[i].intersects( player->getPos() ) )
return true;
}
}
// Check collision with landscape
return terrain->checkCollision( player->getX(), player->getY(), player->getHeight() );
}
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