File: input_functions.c

package info (click to toggle)
rockdodger 0.9.2-1
  • links: PTS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 2,220 kB
  • ctags: 756
  • sloc: ansic: 5,374; makefile: 159; sh: 21
file content (140 lines) | stat: -rw-r--r-- 3,270 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
#include "input_functions.h"
#include "game_state.h"
#include "rockdodger_globals.h"

SDL_Joystick *joysticks[1] = { NULL };
int joystick_flag = 1;
Uint32 screenshot_last_ticks = 0; //!< We really need a delay...

inputstate_t *get_joystick_input(inputstate_t *inputstate) {
  SDL_Joystick *joystick;
  int stick_x, stick_y, button;

  if(joystick_flag == 1) {
    joystick = joysticks[0];
    stick_x = SDL_JoystickGetAxis(joystick, 0);
    stick_y = SDL_JoystickGetAxis(joystick, 1);

    if(stick_x > JOYSTICK_DEADZONE) {
      inputstate->inputstate[RIGHT] |= 1;
    }
    if(stick_x < -JOYSTICK_DEADZONE) {
      inputstate->inputstate[LEFT] |= 1;
    }
    if(stick_y > JOYSTICK_DEADZONE) {
      inputstate->inputstate[DOWN] |= 1;
    }
    if(stick_y < -JOYSTICK_DEADZONE) {
      inputstate->inputstate[UP] |= 1;
    }

    button = SDL_JoystickGetButton(joystick, 0);
    if(button == 1) {
      inputstate->inputstate[LASER] |= 1;
    }

    button = SDL_JoystickGetButton(joystick, 1);
    if(button == 1) {
      inputstate->inputstate[SHIELD] |= 1;
    }
  }

  return inputstate;
}


void get_keyboard_input(Uint8 *keystate, inputstate_t *inputstate) {
  //Always update this.
  if(keystate[SDLK_3]) {
    if(screenshot_last_ticks < last_ticks) {
      inputstate->inputstate[SCREENSHOT] |= 1;
      screenshot_last_ticks = last_ticks + 500; //Half a secod delay.
    }
  }
  
  //Update according to state.
  switch(state) {
  case HIGH_SCORE_DISPLAY:
  case TITLE_PAGE:
  case DEMO:
    if(keystate[SDLK_F1]) { //Setup?
      state = SETUP;
    }
    break;
  case SETUP:
    if(keystate[SDLK_F1]) { //Setup?
      state = TITLE_PAGE;
    }
    if(keystate[SDLK_RETURN]) {
      inputstate->inputstate[INPUT_SELECT] |= 1;      
    }
  case GAME_PLAY:
    if(keystate[SDLK_UP]) {
      inputstate->inputstate[UP] |= 1;
    }
    if(keystate[SDLK_DOWN]) {
      inputstate->inputstate[DOWN] |= 1;
    }
    if(keystate[SDLK_LEFT]) {
      inputstate->inputstate[LEFT] |= 1;
    }
    if(keystate[SDLK_RIGHT]) {
      inputstate->inputstate[RIGHT] |= 1;
    }
    if(keystate[SDLK_d /*Pandora SDLK_HOME*/]) {
      inputstate->inputstate[LASER] |= 1;
    }
#ifdef CHEAT
    if(keystate[SDLK_1]) {
      inputstate->inputstate[FAST] |= 1;
    }
    if(keystate[SDLK_2]) {
      inputstate->inputstate[NOFAST] |= 1;
    }
#endif
    if(keystate[SDLK_s /*Pandora SDLK_RSHIFT*/]) {
      inputstate->inputstate[SHIELD] |= 1;
    }
    break;
  default:
    break;
  }
}


Uint8 *input_subsystem(inputstate_t *inputstate) {
  int i;
  Uint8 *keystate;

  for(i = 0; i < NUM_INPUTS; i++) {
    inputstate->inputstate[i] = 0;
  }
  SDL_PumpEvents();
  keystate = SDL_GetKeyState(NULL);
  if((last_ticks += movementrate) < ign_k_utl_ticks) return keystate;
  get_keyboard_input(keystate, inputstate);

#ifdef CHEAT
  if(keystate[SDLK_5]) {
    inc_score(0, 0, 10000);
    level++;
  }
#endif

  if(state != HIGH_SCORE_ENTRY
     && (keystate[SDLK_q] || keystate[SDLK_ESCAPE])) {
    state = QUIT_GAME;
  }

  if((state == GAME_PLAY || state == GAME_PAUSED) && (keystate[SDLK_PAUSE] || keystate[SDLK_p])) {
    pausegame();
    temporary_disable_key_input();
  }

  return keystate;
}


void temporary_disable_key_input() {
  ign_k_utl_ticks = last_ticks + 139;
}