Reformated main.cc and spaceship.cc
This commit is contained in:
Karma Riuk
parent
af31bc7148
commit
d0670178c0
446
main.cc
446
main.cc
@ -1,103 +1,106 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <math.h>
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#include <time.h>
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#include <gdk/gdkkeysyms.h>
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#include <gtk/gtk.h>
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#include <math.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#define DEFAULT_WIDTH 800
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#define DEFAULT_HEIGHT 800
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#include "game.h"
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#include "balls.h"
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#include "c_index.h"
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#include "game.h"
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#include "gravity.h"
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#include "polygons.h"
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#include "spaceship.h"
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/* Trivial collision check
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*/
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void check_collisions_simple () {
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for(unsigned int i = 0; i < n_balls; ++i)
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for(unsigned int j = i + 1; j < n_balls; ++j)
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ball_ball_collision(balls + i, balls + j);
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for(unsigned int j = 0; j < n_balls; ++j)
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ball_ball_collision(&spaceship, balls + j);
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gravity_collisions (balls, balls + n_balls);
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gravity_collisions (&spaceship, &spaceship + 1);
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void check_collisions_simple() {
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for (unsigned int i = 0; i < n_balls; ++i)
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for (unsigned int j = i + 1; j < n_balls; ++j)
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ball_ball_collision(balls + i, balls + j);
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for (unsigned int j = 0; j < n_balls; ++j)
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ball_ball_collision(&spaceship, balls + j);
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gravity_collisions(balls, balls + n_balls);
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gravity_collisions(&spaceship, &spaceship + 1);
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}
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void check_collisions_with_index () {
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void check_collisions_with_index() {
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c_index_build();
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c_index_check_collisions(ball_ball_collision);
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for(unsigned int j = 0; j < n_balls; ++j)
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ball_ball_collision(&spaceship, balls + j);
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gravity_collisions (balls, balls + n_balls);
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gravity_collisions (&spaceship, &spaceship + 1);
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for (unsigned int j = 0; j < n_balls; ++j)
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ball_ball_collision(&spaceship, balls + j);
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gravity_collisions(balls, balls + n_balls);
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gravity_collisions(&spaceship, &spaceship + 1);
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}
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void (*check_collisions)() = check_collisions_simple;
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void update_state () {
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void update_state() {
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if (check_collisions)
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check_collisions();
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for(unsigned int i = 0; i < n_balls; ++i)
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ball_update_state(balls + i);
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check_collisions();
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for (unsigned int i = 0; i < n_balls; ++i)
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ball_update_state(balls + i);
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spaceship_update_state();
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}
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/* Graphics System
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*/
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void game_init () {
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srand (time(NULL));
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balls_init ();
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void game_init() {
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srand(time(NULL));
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balls_init();
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assert(c_index_init());
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spaceship_init_state ();
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polygons_init_state();
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// spaceship_init_state();
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}
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void game_destroy () {
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c_index_destroy ();
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balls_destroy ();
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void game_destroy() {
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c_index_destroy();
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balls_destroy();
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}
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static guint animation_timeout_id = 0;
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gboolean animation_timeout (gpointer user_data);
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gboolean animation_timeout(gpointer user_data);
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static bool game_paused () {
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static bool game_paused() {
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return animation_timeout_id == 0;
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}
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void game_animation_on_off () {
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void game_animation_on_off() {
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if (animation_timeout_id == 0) {
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animation_timeout_id = g_timeout_add (delta * 1000, animation_timeout, canvas);
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animation_timeout_id =
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g_timeout_add(delta * 1000, animation_timeout, canvas);
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} else {
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g_source_remove (animation_timeout_id);
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animation_timeout_id = 0;
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g_source_remove(animation_timeout_id);
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animation_timeout_id = 0;
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}
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}
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struct param_controls {
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void (*draw) (cairo_t * cr);
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gint (*keyboard_input) (GdkEventKey *event);
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gboolean (*mouse_scroll) (GtkWidget *widget, GdkEvent *event, gpointer user_data);
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void (*draw)(cairo_t* cr);
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gint (*keyboard_input)(GdkEventKey* event);
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gboolean (*mouse_scroll)(
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GtkWidget* widget, GdkEvent* event, gpointer user_data);
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};
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gint gravity_controls_keyboard_input (GdkEventKey *event) {
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switch(event->keyval) {
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gint gravity_controls_keyboard_input(GdkEventKey* event) {
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switch (event->keyval) {
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case GDK_KEY_Up:
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gravity_change (0, -10);
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return TRUE;
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gravity_change(0, -10);
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return TRUE;
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case GDK_KEY_Down:
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gravity_change (0, 10);
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return TRUE;
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gravity_change(0, 10);
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return TRUE;
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case GDK_KEY_Left:
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gravity_change (-10, 0);
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return TRUE;
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gravity_change(-10, 0);
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return TRUE;
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case GDK_KEY_Right:
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gravity_change (10, 0);
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return TRUE;
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gravity_change(10, 0);
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return TRUE;
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}
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return FALSE;
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}
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@ -107,20 +110,20 @@ param_controls gravity_control = {
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.keyboard_input = gravity_controls_keyboard_input,
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};
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gint restitution_coefficient_controls_keyboard_input (GdkEventKey *event) {
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switch(event->keyval) {
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gint restitution_coefficient_controls_keyboard_input(GdkEventKey* event) {
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switch (event->keyval) {
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case GDK_KEY_Up:
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restitution_coefficient_change (0.01);
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return TRUE;
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restitution_coefficient_change(0.01);
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return TRUE;
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case GDK_KEY_Down:
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restitution_coefficient_change (-0.01);
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return TRUE;
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restitution_coefficient_change(-0.01);
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return TRUE;
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case GDK_KEY_Left:
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restitution_coefficient_change (-0.01);
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return TRUE;
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restitution_coefficient_change(-0.01);
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return TRUE;
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case GDK_KEY_Right:
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restitution_coefficient_change (0.01);
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return TRUE;
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restitution_coefficient_change(0.01);
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return TRUE;
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}
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return FALSE;
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}
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@ -131,119 +134,122 @@ param_controls restitution_coefficient_control = {
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};
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static param_controls * param_control = nullptr;
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static param_controls* param_control = nullptr;
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static guint param_control_timeout_id = 0;
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static const guint param_control_active_ms = 3000;
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gboolean param_control_timeout (gpointer user_data) {
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gboolean param_control_timeout(gpointer user_data) {
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param_control = nullptr;
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param_control_timeout_id = 0;
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gtk_widget_queue_draw(canvas);
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return FALSE;
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}
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void param_control_activate (struct param_controls * ctrl) {
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void param_control_activate(struct param_controls* ctrl) {
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if (param_control)
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g_source_remove (param_control_timeout_id);
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g_source_remove(param_control_timeout_id);
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param_control = ctrl;
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param_control_timeout_id = g_timeout_add (param_control_active_ms, param_control_timeout, canvas);
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param_control_timeout_id =
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g_timeout_add(param_control_active_ms, param_control_timeout, canvas);
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gtk_widget_queue_draw(canvas);
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}
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gboolean draw_frame (GtkWidget * widget, cairo_t *cr, gpointer data) {
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gboolean draw_frame(GtkWidget* widget, cairo_t* cr, gpointer data) {
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cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0);
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cairo_paint(cr);
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if (param_control)
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param_control->draw (cr);
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gravity_draw_visible_field (cr);
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balls_draw (cr);
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spaceship_draw (cr);
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param_control->draw(cr);
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gravity_draw_visible_field(cr);
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balls_draw(cr);
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spaceship_draw(cr);
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polygons_draw(cr);
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return FALSE;
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}
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gint configure_event (GtkWidget *widget, GdkEventConfigure * event) {
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gint configure_event(GtkWidget* widget, GdkEventConfigure* event) {
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if (width == event->width && height == event->height)
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return FALSE;
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return FALSE;
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width = gtk_widget_get_allocated_width (widget);
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height = gtk_widget_get_allocated_height (widget);
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width = gtk_widget_get_allocated_width(widget);
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height = gtk_widget_get_allocated_height(widget);
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for (ball * b = balls; b != balls + n_balls; ++b)
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ball_reposition (b);
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ball_reposition (&spaceship);
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for (ball* b = balls; b != balls + n_balls; ++b)
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ball_reposition(b);
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ball_reposition(&spaceship);
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return TRUE;
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}
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gint keyboard_input (GtkWidget *widget, GdkEventKey *event) {
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gint keyboard_input(GtkWidget* widget, GdkEventKey* event) {
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if (event->type != GDK_KEY_PRESS)
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return FALSE;
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if (param_control && param_control->keyboard_input (event)) {
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gtk_widget_queue_draw(canvas);
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g_source_remove (param_control_timeout_id);
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param_control_timeout_id = g_timeout_add (param_control_active_ms, param_control_timeout, canvas);
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return TRUE;
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return FALSE;
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if (param_control && param_control->keyboard_input(event)) {
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gtk_widget_queue_draw(canvas);
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g_source_remove(param_control_timeout_id);
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param_control_timeout_id = g_timeout_add(
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param_control_active_ms, param_control_timeout, canvas);
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return TRUE;
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}
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switch(event->keyval) {
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switch (event->keyval) {
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case GDK_KEY_R:
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case GDK_KEY_r:
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param_control_activate (&restitution_coefficient_control);
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return TRUE;
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param_control_activate(&restitution_coefficient_control);
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return TRUE;
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case GDK_KEY_G:
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case GDK_KEY_g:
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param_control_activate (&gravity_control);
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return TRUE;
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param_control_activate(&gravity_control);
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return TRUE;
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case GDK_KEY_P:
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case GDK_KEY_p:
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game_animation_on_off ();
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return TRUE;
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game_animation_on_off();
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return TRUE;
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case GDK_KEY_Q:
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case GDK_KEY_q:
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gtk_main_quit();
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return TRUE;
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gtk_main_quit();
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return TRUE;
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}
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return FALSE;
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}
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gboolean mouse_scroll (GtkWidget *widget, GdkEvent *event, gpointer user_data) {
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if (event->type == GDK_SCROLL && ! game_paused ()) {
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GdkEventScroll * e = (GdkEventScroll*) event;
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switch (e->direction) {
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case GDK_SCROLL_SMOOTH: {
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double dx, dy;
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gdk_event_get_scroll_deltas (event, &dx, &dy);
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spaceship_control (dx, dy);
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break;
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}
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default:
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break;
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}
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gboolean mouse_scroll(GtkWidget* widget, GdkEvent* event, gpointer user_data) {
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if (event->type == GDK_SCROLL && !game_paused()) {
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GdkEventScroll* e = (GdkEventScroll*) event;
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switch (e->direction) {
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case GDK_SCROLL_SMOOTH: {
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double dx, dy;
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gdk_event_get_scroll_deltas(event, &dx, &dy);
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spaceship_control(dx, dy);
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break;
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}
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default:
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break;
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}
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}
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return TRUE;
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}
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void destroy_window (void) {
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void destroy_window(void) {
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gtk_main_quit();
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}
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void print_usage (const char * progname) {
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void print_usage(const char* progname) {
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fprintf(stderr,
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"usage: %s [options...]\n"
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"options:\n"
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"\t<width>x<height>\n"
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"\tn=<number of balls>\n"
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"\tfconst=<x-force>,<y-force> :: constant force field\n"
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"\tfnewt=<radius>,<g> :: radial, Newtonian force field\n"
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"\tfy=<y-force>\n"
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"\tradius=<min-radius>-<max-radius>\n"
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"\tv=<min-velocity>-<max-velocity>\n"
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"\tdelta=<frame-delta-time> (in seconds)\n"
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"\tface=<filename>\n"
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"\tstats=<sample-count> :: rendering timing statitstics (0=disabled, default)\n"
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"\tcollisions=<C> :: n=no collisions, s=simple, i=index\n"
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"\trestitution=<C_r> :: restitution coefficient C_r\n"
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"\t-r :: activate face rotation\n",
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progname);
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"usage: %s [options...]\n"
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"options:\n"
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"\t<width>x<height>\n"
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"\tn=<number of balls>\n"
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"\tfconst=<x-force>,<y-force> :: constant force field\n"
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"\tfnewt=<radius>,<g> :: radial, Newtonian force field\n"
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"\tfy=<y-force>\n"
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"\tradius=<min-radius>-<max-radius>\n"
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"\tv=<min-velocity>-<max-velocity>\n"
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"\tdelta=<frame-delta-time> (in seconds)\n"
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"\tface=<filename>\n"
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"\tstats=<sample-count> :: rendering timing statitstics (0=disabled, "
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"default)\n"
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"\tcollisions=<C> :: n=no collisions, s=simple, i=index\n"
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"\trestitution=<C_r> :: restitution coefficient C_r\n"
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"\t-r :: activate face rotation\n",
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progname);
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}
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static unsigned int stats_sampling = 0;
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@ -252,135 +258,145 @@ static unsigned int stats_update_samples = 0;
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static guint64 stats_draw_usec = 0;
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static unsigned int stats_draw_samples = 0;
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gboolean draw_event (GtkWidget *widget, cairo_t * cr, gpointer data) {
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gboolean draw_event(GtkWidget* widget, cairo_t* cr, gpointer data) {
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if (stats_sampling > 0) {
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guint64 start = g_get_monotonic_time ();
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draw_frame (widget, cr, data);
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stats_draw_usec += g_get_monotonic_time () - start;
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++stats_draw_samples;
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guint64 start = g_get_monotonic_time();
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draw_frame(widget, cr, data);
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stats_draw_usec += g_get_monotonic_time() - start;
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++stats_draw_samples;
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} else
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draw_frame (widget, cr, data);
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draw_frame(widget, cr, data);
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return FALSE;
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}
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gboolean animation_timeout (gpointer user_data) {
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gboolean animation_timeout(gpointer user_data) {
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if (stats_sampling > 0) {
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guint64 start = g_get_monotonic_time ();
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update_state();
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stats_update_usec += g_get_monotonic_time () - start;
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if (++stats_update_samples == stats_sampling) {
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float uavg = 1.0*stats_update_usec / stats_update_samples;
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float davg = 1.0*stats_draw_usec / stats_draw_samples;
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printf("\rupdate = %.0f us, draw = %.0f us, load = %.0f%% (%u update, %u draw) ",
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uavg, davg, (uavg+davg)/(10000.0*delta),
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stats_update_samples, stats_draw_samples);
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fflush(stdout);
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stats_update_usec = 0;
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stats_update_samples = 0;
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stats_draw_usec = 0;
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stats_draw_samples = 0;
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}
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guint64 start = g_get_monotonic_time();
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update_state();
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stats_update_usec += g_get_monotonic_time() - start;
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if (++stats_update_samples == stats_sampling) {
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float uavg = 1.0 * stats_update_usec / stats_update_samples;
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float davg = 1.0 * stats_draw_usec / stats_draw_samples;
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printf("\rupdate = %.0f us, draw = %.0f us, load = %.0f%% (%u "
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"update, %u draw) ",
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uavg,
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davg,
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(uavg + davg) / (10000.0 * delta),
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stats_update_samples,
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stats_draw_samples);
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fflush(stdout);
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stats_update_usec = 0;
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stats_update_samples = 0;
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stats_draw_usec = 0;
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stats_draw_samples = 0;
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}
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} else {
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update_state();
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update_state();
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}
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gtk_widget_queue_draw(canvas);
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return TRUE;
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}
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int main (int argc, const char *argv[]) {
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int main(int argc, const char* argv[]) {
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int w = DEFAULT_WIDTH;
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int h = DEFAULT_HEIGHT;
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double fa, fb;
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for (int i = 1; i < argc; ++i) {
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if (sscanf(argv[i], "%dx%d", &w, &h) == 2)
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continue;
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if (sscanf(argv[i], "n=%u", &n_balls) == 1)
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continue;
|
||||
if (sscanf(argv[i], "fconst=%lf,%lf", &fa, &fb) == 2) {
|
||||
gravity_constant_field (fa,fb);
|
||||
continue;
|
||||
}
|
||||
if (sscanf(argv[i], "fnewt=%lf,%lf", &fa, &fb) == 2) {
|
||||
gravity_newton_field (fa,fb);
|
||||
continue;
|
||||
}
|
||||
if (sscanf(argv[i], "radius=%u-%u", &radius_min, &radius_max) == 2)
|
||||
continue;
|
||||
if (sscanf(argv[i], "v=%u-%u", &v_min, &v_max) == 2)
|
||||
continue;
|
||||
if (sscanf(argv[i], "delta=%lf", &delta) == 1)
|
||||
continue;
|
||||
if (strncmp(argv[i], "face=", 5) == 0) {
|
||||
face_filename = argv[i] + 5;
|
||||
continue;
|
||||
}
|
||||
if (sscanf(argv[i], "stats=%u", &stats_sampling) == 1)
|
||||
continue;
|
||||
char collisions;
|
||||
if (sscanf(argv[i], "collisions=%c", &collisions) == 1) {
|
||||
switch (collisions) {
|
||||
case 'i':
|
||||
case 'I':
|
||||
check_collisions = check_collisions_with_index;
|
||||
continue;
|
||||
case '0':
|
||||
case 'N':
|
||||
case 'n':
|
||||
check_collisions = 0;
|
||||
continue;
|
||||
case 's':
|
||||
case 'S':
|
||||
check_collisions = check_collisions_simple;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
if (strcmp(argv[i], "-r") == 0) {
|
||||
face_rotation = 1;
|
||||
continue;
|
||||
}
|
||||
double c_r;
|
||||
if (sscanf(argv[i], "restitution=%lf", &c_r) == 1) {
|
||||
restitution_coefficient_set (c_r);
|
||||
continue;
|
||||
}
|
||||
print_usage(argv[0]);
|
||||
return 1;
|
||||
if (sscanf(argv[i], "%dx%d", &w, &h) == 2)
|
||||
continue;
|
||||
if (sscanf(argv[i], "n=%u", &n_balls) == 1)
|
||||
continue;
|
||||
if (sscanf(argv[i], "fconst=%lf,%lf", &fa, &fb) == 2) {
|
||||
gravity_constant_field(fa, fb);
|
||||
continue;
|
||||
}
|
||||
if (sscanf(argv[i], "fnewt=%lf,%lf", &fa, &fb) == 2) {
|
||||
gravity_newton_field(fa, fb);
|
||||
continue;
|
||||
}
|
||||
if (sscanf(argv[i], "radius=%u-%u", &radius_min, &radius_max) == 2)
|
||||
continue;
|
||||
if (sscanf(argv[i], "v=%u-%u", &v_min, &v_max) == 2)
|
||||
continue;
|
||||
if (sscanf(argv[i], "delta=%lf", &delta) == 1)
|
||||
continue;
|
||||
if (strncmp(argv[i], "face=", 5) == 0) {
|
||||
face_filename = argv[i] + 5;
|
||||
continue;
|
||||
}
|
||||
if (sscanf(argv[i], "stats=%u", &stats_sampling) == 1)
|
||||
continue;
|
||||
char collisions;
|
||||
if (sscanf(argv[i], "collisions=%c", &collisions) == 1) {
|
||||
switch (collisions) {
|
||||
case 'i':
|
||||
case 'I':
|
||||
check_collisions = check_collisions_with_index;
|
||||
continue;
|
||||
case '0':
|
||||
case 'N':
|
||||
case 'n':
|
||||
check_collisions = 0;
|
||||
continue;
|
||||
case 's':
|
||||
case 'S':
|
||||
check_collisions = check_collisions_simple;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
if (strcmp(argv[i], "-r") == 0) {
|
||||
face_rotation = 1;
|
||||
continue;
|
||||
}
|
||||
double c_r;
|
||||
if (sscanf(argv[i], "restitution=%lf", &c_r) == 1) {
|
||||
restitution_coefficient_set(c_r);
|
||||
continue;
|
||||
}
|
||||
print_usage(argv[0]);
|
||||
return 1;
|
||||
}
|
||||
|
||||
gtk_init(0, 0);
|
||||
|
||||
GtkWidget * window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
|
||||
GtkWidget* window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
|
||||
gtk_window_set_default_size(GTK_WINDOW(window), width, height);
|
||||
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
|
||||
gtk_window_set_title(GTK_WINDOW(window), "Game");
|
||||
|
||||
g_signal_connect(window, "destroy", G_CALLBACK(destroy_window), NULL);
|
||||
g_signal_connect (G_OBJECT (window), "delete-event", G_CALLBACK(destroy_window), NULL);
|
||||
g_signal_connect(G_OBJECT (window), "key-press-event", G_CALLBACK(keyboard_input), NULL);
|
||||
gtk_widget_set_events (window, GDK_EXPOSURE_MASK | GDK_SCROLL_MASK | GDK_SMOOTH_SCROLL_MASK | GDK_KEY_PRESS_MASK);
|
||||
g_signal_connect(
|
||||
G_OBJECT(window), "delete-event", G_CALLBACK(destroy_window), NULL);
|
||||
g_signal_connect(
|
||||
G_OBJECT(window), "key-press-event", G_CALLBACK(keyboard_input), NULL);
|
||||
gtk_widget_set_events(window,
|
||||
GDK_EXPOSURE_MASK | GDK_SCROLL_MASK | GDK_SMOOTH_SCROLL_MASK |
|
||||
GDK_KEY_PRESS_MASK);
|
||||
|
||||
canvas = gtk_drawing_area_new ();
|
||||
canvas = gtk_drawing_area_new();
|
||||
|
||||
g_signal_connect (G_OBJECT (canvas), "configure-event", G_CALLBACK(configure_event), NULL);
|
||||
g_signal_connect (G_OBJECT (canvas), "draw", G_CALLBACK (draw_event), NULL);
|
||||
g_signal_connect (G_OBJECT (canvas), "scroll-event",G_CALLBACK(mouse_scroll), NULL);
|
||||
gtk_widget_set_events (canvas, GDK_SCROLL_MASK | GDK_SMOOTH_SCROLL_MASK);
|
||||
g_signal_connect(
|
||||
G_OBJECT(canvas), "configure-event", G_CALLBACK(configure_event), NULL);
|
||||
g_signal_connect(G_OBJECT(canvas), "draw", G_CALLBACK(draw_event), NULL);
|
||||
g_signal_connect(
|
||||
G_OBJECT(canvas), "scroll-event", G_CALLBACK(mouse_scroll), NULL);
|
||||
gtk_widget_set_events(canvas, GDK_SCROLL_MASK | GDK_SMOOTH_SCROLL_MASK);
|
||||
|
||||
gtk_container_add (GTK_CONTAINER (window), canvas);
|
||||
gtk_container_add(GTK_CONTAINER(window), canvas);
|
||||
|
||||
game_animation_on_off ();
|
||||
game_animation_on_off();
|
||||
|
||||
gtk_widget_show_all(window);
|
||||
|
||||
game_init ();
|
||||
game_init();
|
||||
|
||||
gtk_main();
|
||||
|
||||
if (stats_sampling > 0)
|
||||
printf("\n");
|
||||
printf("\n");
|
||||
|
||||
game_destroy ();
|
||||
game_destroy();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
77
spaceship.cc
77
spaceship.cc
@ -1,17 +1,17 @@
|
||||
#include <math.h>
|
||||
#include <gtk/gtk.h>
|
||||
|
||||
#include "balls.h"
|
||||
#include "game.h"
|
||||
|
||||
#include <gtk/gtk.h>
|
||||
#include <math.h>
|
||||
|
||||
struct ball spaceship;
|
||||
double spaceship_thrust = 0;
|
||||
int spaceship_thrust_countdown = 0;
|
||||
int spaceship_thrust_init = 50;
|
||||
|
||||
void spaceship_init_state () {
|
||||
spaceship.position.x = width/2;
|
||||
spaceship.position.y = height/2;
|
||||
void spaceship_init_state() {
|
||||
spaceship.position.x = width / 2;
|
||||
spaceship.position.y = height / 2;
|
||||
spaceship.radius = 30;
|
||||
spaceship.velocity.x = 0;
|
||||
spaceship.velocity.y = 0;
|
||||
@ -19,57 +19,64 @@ void spaceship_init_state () {
|
||||
spaceship.v_angle = 0;
|
||||
}
|
||||
|
||||
void spaceship_update_state () {
|
||||
void spaceship_update_state() {
|
||||
if (spaceship_thrust > 0) {
|
||||
vec2d f { cos(spaceship.angle)*spaceship_thrust*4.0,
|
||||
sin(spaceship.angle)*spaceship_thrust*4.0 };
|
||||
vec2d f{cos(spaceship.angle) * spaceship_thrust * 4.0,
|
||||
sin(spaceship.angle) * spaceship_thrust * 4.0};
|
||||
|
||||
spaceship.position += delta*delta*f/2.0;
|
||||
spaceship.velocity += delta*f;
|
||||
if (spaceship_thrust_countdown > 0)
|
||||
--spaceship_thrust_countdown;
|
||||
else
|
||||
spaceship_thrust = 0;
|
||||
spaceship.position += delta * delta * f / 2.0;
|
||||
spaceship.velocity += delta * f;
|
||||
if (spaceship_thrust_countdown > 0)
|
||||
--spaceship_thrust_countdown;
|
||||
else
|
||||
spaceship_thrust = 0;
|
||||
}
|
||||
ball_update_state(&spaceship);
|
||||
}
|
||||
|
||||
void spaceship_draw (cairo_t * cr) {
|
||||
void spaceship_draw(cairo_t* cr) {
|
||||
static const double one_over_sqrt_2 = 0.70710678118654752440;
|
||||
cairo_save(cr);
|
||||
cairo_set_source_rgba(cr, 0.0, 0.0, 1.0, 1.0);
|
||||
cairo_translate(cr, spaceship.position.x, spaceship.position.y);
|
||||
cairo_rotate(cr, spaceship.angle);
|
||||
cairo_arc(cr, 0, 0, spaceship.radius, 0, 2*M_PI);
|
||||
cairo_arc(cr, 0, 0, spaceship.radius, 0, 2 * M_PI);
|
||||
cairo_stroke(cr);
|
||||
cairo_set_source_rgba(cr, 0.0, 1.0, 0.0, 1.0);
|
||||
cairo_move_to (cr, 0, 0);
|
||||
cairo_line_to (cr, -one_over_sqrt_2*spaceship.radius, one_over_sqrt_2*spaceship.radius);
|
||||
cairo_line_to (cr, spaceship.radius, 0);
|
||||
cairo_line_to (cr, -one_over_sqrt_2*spaceship.radius, -one_over_sqrt_2*spaceship.radius);
|
||||
cairo_line_to (cr, 0, 0);
|
||||
cairo_move_to(cr, 0, 0);
|
||||
cairo_line_to(cr,
|
||||
-one_over_sqrt_2 * spaceship.radius,
|
||||
one_over_sqrt_2 * spaceship.radius);
|
||||
cairo_line_to(cr, spaceship.radius, 0);
|
||||
cairo_line_to(cr,
|
||||
-one_over_sqrt_2 * spaceship.radius,
|
||||
-one_over_sqrt_2 * spaceship.radius);
|
||||
cairo_line_to(cr, 0, 0);
|
||||
cairo_stroke(cr);
|
||||
cairo_set_source_rgba(cr, 1.0, 0.5, 0.0, 1.0);
|
||||
for (unsigned int i = 0; i < spaceship_thrust; i += 5) {
|
||||
double d_angle = spaceship.radius/(spaceship.radius + 0.1*i)*0.25*M_PI*(1 - 0.99*i/spaceship_thrust);
|
||||
cairo_set_source_rgba(cr, 1.0, 1.0*(1 - 0.5*i/spaceship_thrust), 0.0, 1.0);
|
||||
cairo_arc(cr, 0, 0, spaceship.radius + i, M_PI - d_angle, M_PI + d_angle);
|
||||
cairo_stroke(cr);
|
||||
if (d_angle > 0.05)
|
||||
d_angle = 0.7*d_angle;
|
||||
double d_angle = spaceship.radius / (spaceship.radius + 0.1 * i) *
|
||||
0.25 * M_PI * (1 - 0.99 * i / spaceship_thrust);
|
||||
cairo_set_source_rgba(
|
||||
cr, 1.0, 1.0 * (1 - 0.5 * i / spaceship_thrust), 0.0, 1.0);
|
||||
cairo_arc(
|
||||
cr, 0, 0, spaceship.radius + i, M_PI - d_angle, M_PI + d_angle);
|
||||
cairo_stroke(cr);
|
||||
if (d_angle > 0.05)
|
||||
d_angle = 0.7 * d_angle;
|
||||
}
|
||||
cairo_restore(cr);
|
||||
}
|
||||
|
||||
void spaceship_control (double dx, double dy) {
|
||||
spaceship.angle -= dx/4;
|
||||
void spaceship_control(double dx, double dy) {
|
||||
spaceship.angle -= dx / 4;
|
||||
if (spaceship.angle < 0)
|
||||
spaceship.angle += 2*M_PI;
|
||||
else if (spaceship.angle > 2*M_PI)
|
||||
spaceship.angle -= 2*M_PI;
|
||||
spaceship.angle += 2 * M_PI;
|
||||
else if (spaceship.angle > 2 * M_PI)
|
||||
spaceship.angle -= 2 * M_PI;
|
||||
spaceship_thrust += dy;
|
||||
if (spaceship_thrust > 0)
|
||||
spaceship_thrust_countdown = spaceship_thrust_init;
|
||||
spaceship_thrust_countdown = spaceship_thrust_init;
|
||||
else
|
||||
spaceship_thrust = 0;
|
||||
spaceship_thrust = 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user