nortega/spaceshipsim
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Added malfunctioning ship.

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Currently it doesn't seem to be detecting the key preses.
This commit is contained in:
Nicolás Ortega Froysa 2018-03-25 17:47:31 +02:00
parent 80113d51ff
commit 88f3a5f1a5
No known key found for this signature in database
GPG Key ID: FEC70E3BAE2E69BF
8 changed files with 54 additions and 118 deletions
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1
CMakeLists.txt
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@ -42,7 +42,6 @@ include_directories(
SYSTEM ${ALLEG5_INCLUDE_DIRS})
set(SRCS
src/display.c
src/event_manager.c
src/main.c
src/ship.c)

41
src/display.c
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@ -1,41 +0,0 @@
/*
* Copyright (C) 2018 Ortega Froysa, Nicolás <nortega@themusicinnoise.net>
* Author: Ortega Froysa, Nicolás <nortega@themusicinnoise.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "display.h"
#ifdef DEBUG
# include <stdio.h>
#endif
int create_display(ALLEGRO_DISPLAY *display,
unsigned int width, unsigned int height) {
display = al_create_display(width, height);
if(!display)
return 0;
#ifdef DEBUG
puts("Initialized display.");
#endif
return 1;
}
void destroy_display(ALLEGRO_DISPLAY *display) {
al_destroy_display(display);
#ifdef DEBUG
puts("Destroyed display.");
#endif
}

40
src/display.h
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@ -1,40 +0,0 @@
/*
* Copyright (C) 2018 Ortega Froysa, Nicolás <nortega@themusicinnoise.net>
* Author: Ortega Froysa, Nicolás <nortega@themusicinnoise.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <allegro5/allegro.h>
/**
* @brief Create an allegro 5 display with a given width and height.
*
* @param display The display to create.
* @param width The width of the display.
* @param height The height of the display.
*
* @return If successful it will return 1, else it will return 0.
*/
int create_display(ALLEGRO_DISPLAY *display,
unsigned int width, unsigned int height);
/**
* @brief Destroy the display (used for shutdown).
*
* @param display The display to destroy.
*/
void destroy_display(ALLEGRO_DISPLAY *display);

11
src/event_manager.c
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@ -23,6 +23,7 @@
# include <stdio.h>
#endif
#include <stddef.h>
#include <assert.h>
#include <allegro5/allegro.h>
static ALLEGRO_EVENT_QUEUE *event_queue;
@ -30,6 +31,7 @@ static ALLEGRO_TIMER *timer;
static int keys[KEY_MAX];
int evnt_mngr_init(ALLEGRO_DISPLAY *display) {
assert(display);
if(!al_install_keyboard())
return 0;
#ifdef DEBUG
@ -133,13 +135,6 @@ void handle_event() {
}
int key_is_down(int code) {
if(code < 0 || code >= KEY_MAX)
{
#ifdef DEBUG
fprintf(stderr, "key_is_down(int): bad key code!\n");
#endif
return 0;
}
else
assert(code >= 0 && code <= KEY_MAX);
return keys[code];
}

3
src/event_manager.h
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@ -33,6 +33,9 @@ enum {
/**
* @brief Initialize the event handler.
*
* @param display A pointer to the display (used to get
* event source).
*
* @return 0 upon failure, 1 upon success.
*/
int evnt_mngr_init(ALLEGRO_DISPLAY *display);

22
src/main.c
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@ -17,7 +17,6 @@
*/
#include "globals.h"
#include "display.h"
#include "event_manager.h"
#include "ship.h"
@ -38,23 +37,32 @@ int main() {
fprintf(stderr, "alleg5: failed to initialize Allegro.\n");
return 1;
}
#ifdef DEBUG
puts("Initialized allegro system.");
#endif
if(!al_init_primitives_addon())
{
fprintf(stderr, "alleg5: failed to initialize primitives addon.\n");
return 1;
}
#ifdef DEBUG
puts("Initialized primitives addon.");
#endif
ALLEGRO_DISPLAY *display;
if(!create_display(display, 800, 600))
ALLEGRO_DISPLAY *display = al_create_display(800, 600);
if(!display)
{
fprintf(stderr, "alleg5: failed to create display.\n");
fprintf(stderr, "alleg5: failed to initialize display.\n");
return 1;
}
#ifdef DEBUG
puts("Created display.");
#endif
if(!evnt_mngr_init(display))
{
fprintf(stderr, "alleg5: failed to initialize event queue.\n");
destroy_display(display);
al_destroy_display(display);
return 1;
}
@ -81,7 +89,7 @@ int main() {
*/
ship_update(&ship);
al_clear_to_color(al_map_rgb(0, 0, 0));
// TODO: run simulation draw functions
ship_draw(&ship);
if(show_info)
{
// TODO: draw simulation stats
@ -97,7 +105,7 @@ int main() {
}
evnt_mngr_deinit();
destroy_display(display);
al_destroy_display(display);
al_shutdown_primitives_addon();
#ifdef DEBUG
puts("Shutdown primitives addon.");

43
src/ship.c
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@ -20,10 +20,9 @@
#include "event_manager.h"
#include "globals.h"
#ifdef DEBUG
# include <stdio.h>
#endif
#include <math.h>
#include <assert.h>
#include <allegro5/allegro_primitives.h>
#ifndef M_PI
# define M_PI 3.14159265f
@ -31,16 +30,10 @@
#define ACCEL 5.0f
#define TURN_ACCEL (M_PI / FPS) // turn at pi radians / sec
#define SHIP_RADIUS 10.0f // radius of the ship in pixels
void ship_init(struct ship *ship, int x, int y) {
if(!ship)
{
#ifdef DEBUG
fprintf(stderr,
"ship_init(struct ship*,int,int): invalid ship.\n");
#endif
return;
}
assert(ship);
ship->x = x;
ship->y = y;
ship->velX = ship->velY = 0;
@ -48,15 +41,7 @@ void ship_init(struct ship *ship, int x, int y) {
}
void ship_update(struct ship *ship) {
if(!ship)
{
#ifdef DEBUG
fprintf(stderr,
"ship_update(struct ship*): invalid ship.\n");
#endif
return;
}
assert(ship);
if(key_is_down(KEY_UP))
{
ship->velX += cos(ship->direction) * ACCEL;
@ -79,3 +64,21 @@ void ship_update(struct ship *ship) {
else if(ship->direction < 0)
ship->direction += M_PI * 2;
}
void ship_draw(struct ship *ship) {
assert(ship);
const float x0 = ship->x + (cos(ship->direction) *
SHIP_RADIUS);
const float y0 = ship->y + (sin(ship->direction) *
SHIP_RADIUS);
const float x1 = ship->x + (cos(ship->direction +
M_PI * 0.8f) * SHIP_RADIUS);
const float y1 = ship->y + (sin(ship->direction +
M_PI * 0.8f) * SHIP_RADIUS);
const float x2 = ship->x + (cos(ship->direction +
M_PI * 1.2f) * SHIP_RADIUS);
const float y2 = ship->y + (sin(ship->direction +
M_PI * 1.2f) * SHIP_RADIUS);
al_draw_filled_triangle(x0, y0, x1, y1, x2, y2,
al_map_rgb(0xFF, 0x0, 0x0));
}

9
src/ship.h
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@ -18,6 +18,8 @@
#pragma once
#include <allegro5/allegro.h>
struct ship {
float x, y; ///< The x and y coordinates of the ship.
float velX, velY; ///< The x and y velocities of the ship.
@ -44,3 +46,10 @@ void ship_init(struct ship *ship, int x, int y);
* @param ship A pointer to the ship object.
*/
void ship_update(struct ship *ship);
/**
* @brief Draw the ship.
*
* @param ship Ship object to draw.
*/
void ship_draw(struct ship *ship);