summaryrefslogtreecommitdiff
path: root/src/player.c
blob: 000eb76063cacd8cb828eaef3ea5e6e99a7f1ed3 (plain)
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
/*
* Copyright (c) 2021, Johnny Richard
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
*    list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
*    this list of conditions and the following disclaimer in the documentation
*    and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
*    contributors may be used to endorse or promote products derived from
*    this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "player.h"

#include <assert.h>
#include <SDL.h>

void
player_init(player_t *player)
{
  assert(player && "player is required");
  player->x = 0;
  player->y = 0;
  player->width = 20;
  player->height = 20;
  player->speed = 8;
}

void player_update(player_t     *player,
                   controller_t *ctrl,
                   int           screen_width,
                   int           screen_height)
{
  if (controller_is_up_pressed(ctrl) && player->y > 0) {
    player->y -= player->speed;
    player->y = player->y < 0 ? 0 : player->y;
  }

  if (controller_is_down_pressed(ctrl) && player->y < screen_height) {
    player->y += player->speed;
    player->y = player->y + player->height > screen_height 
      ? screen_height - player->height 
      : player->y;
  }

  if (controller_is_left_pressed(ctrl) && player->x > 0)  {
    player->x -= player->speed;
    player->x = player->x < 0 
      ? 0 
      : player->x;
  }

  if (controller_is_right_pressed(ctrl) && player->x < screen_width) {
    player->x += player->speed;
    player->x = player->x + player->width > screen_width 
      ? screen_width - player->width 
      : player->x;
  }
}

void
player_draw(player_t *player, SDL_Renderer *renderer)
{
  SDL_Rect rect = { 
    .x = player->x, 
    .y = player->y,
    .w = player->width,
    .h = player->height 
  };

  SDL_SetRenderDrawColor(renderer, 0, 0, 0xFF, 1);
  SDL_RenderFillRect(renderer, &rect);
}