pong3d.h

/**
  @file pong3d.h
  @author Alejandro Ambroa
  @date 1 Oct 2017
  @brief General definitions and data for game.
 */

#ifndef _CONFIG_H_
#define _CONFIG_H_

#include "geometry.h"
#include <stdbool.h>

#define WINDOW_TITLE "Pong 3D"

#define WINDOW_WIDTH 600
#define WINDOW_HEIGHT 378

#define STAGE_BLOCKS 8

/*
   segments for ball. The number of vertices would be BALL_SEGMENTS^2
   and angle for each segment 2*PI / BALL_SEGMENTS
 */
#define BALL_SEGMENTS 20

// delay in frames to limit speed of computer stick
#define OPPONENT_SAMPLE_ADJUST 30

// sample frecuency rate for sound synthetizer
#define SAMPLE_RATE 44100

// alpha value for overlay
#define OVERLAY_ALPHA 0.8f

// by default, ball adquires a speed of (stage deep)/per second. This constant increments this speed.

#define INITIAL_VELOCITY_FACTOR 1.3f

#define INITIAL_BALL_SPEED_VECTOR { -0.1f, 0.05f, -0.0f }

#define STAGE_COLOR { 0.0f, 1.0f, 0.0f, 0.2f }

#define FPS 60

#define BALLS 12
/**
  each time that player return a ball, ball speed is increased reducing number of frames where ball movement is updated.
 */

#define FRAMES_DEC_FACTOR 1

#define FONT_SIZE 48

typedef enum {

    STARTING,
    STARTED,
    LOADING_PLAYERS,
    PLAYER_SERVICE,
    PLAYER_RETURN,
    OPP_RETURN,
    OPP_SERVICE,
    PLAYER_WINS,
    OPP_WINS,
    FINISHED,
    EXIT
} GAME_STATE;

extern int balls;
extern int player_score;
extern int opponent_score;
extern GAME_STATE gameState, prevGameState;

int ball_in_player_stick();
int ball_in_opponent_stick();
int ball_in_stick(float ball_x, float ball_y, float ball_width, PONG_ELEMENT* stick);
int ball_hit_wall(float* outVector, PONG_ELEMENT* stage, PONG_ELEMENT* ball);

void change_state(GAME_STATE state);

#endif