void hud_print_time(
program_state_t* PS,
int x,
int y,
alignment_t alignment,
int color,
microtime_t micros
)
{
bool_t dot_visible = (PS->current_time_us % 1000000 < 800000);
int ms = micros / 1000;
int sec = ms / 1000;
int min = sec / 60;
sec -= 60 * min;
char* s;
// Format time to string with blinking colon
asprintf(
&s,
(dot_visible) ? "T=%02d:%02d.%d" : "T=%02d %02d.%d",
min,
sec,
(ms % 1000) / 100
);
hud_printf( PS, x, y, alignment, color, s );
free( s );
}
void draw_overlay( program_state_t* PS )
{
int w = PS->window_width;
int h = PS->window_height;
microtime_t T = PS->current_time_us;
GLfloat R, G, B;
glViewport( 0, 0, w, h ); // Using screen coordinates
glMatrixMode( GL_PROJECTION ); // Setup 2D mode
glLoadIdentity();
gluOrtho2D( 0, w, 0, h );
glMatrixMode( GL_MODELVIEW );
glDisable( GL_DEPTH_TEST );
glLoadIdentity();
color_from_hue( (T % 6000000) / 6000000.0, &R, &G, &B );
glColor3f( R, G, B );
glLineWidth( 2 );
glBegin( GL_LINES );
glVertex2i( 0, 2*h/3 );
glVertex2i( w, 2*h/3 );
glEnd();
glLineWidth( 1 );
hud_printf( PS,
w/2,
2*h/3 + PS->line_height/2,
ALIGN_CENTER,
0xFFFFFF,
PROGRAM_NAME
);
hud_printf( PS,
w/2,
2*h/3 - 3*PS->line_height/2,
ALIGN_CENTER,
0x888888,
PROGRAM_VERSION
);
}
/* get_weapon_color()
* Returns two colors (enabled/disabled) for rendering the weapon status.
* If blinking is indicated for the weapon, the returned colors will be bright
* "blink colors" for a certain fraction in a looping time interval.
*/
void hud_weapon_state(
program_state_t* PS,
game_state_t* GS,
int weapon_nr,
char* caption,
int x,
int y
)
{
int color_enabled;
int color_disabled;
weapon_t* wpn = &(GS->ship.weapons[weapon_nr]);
microtime_t elapsed_time
= PS->current_time_us
- wpn->blink_start_us
;
bool_t highlight
= (elapsed_time % HUD_BLINK_SPEED > 2*HUD_BLINK_SPEED/3 )
;
if (wpn->blink_until_us > PS->current_time_us) {
color_enabled
= highlight
? COLOR_ENABLED_LO
: COLOR_BLINK_HI
;
color_disabled
= highlight
? COLOR_DISABLED_LO
: COLOR_BLINK_HI
;
} else {
color_enabled = COLOR_ENABLED_HI;
color_disabled = COLOR_DISABLED_HI;
}
hud_printf(
PS,
x, y,
ALIGN_LEFT,
(wpn->enabled ? color_enabled : color_disabled ),
caption
);
}
void debug_times(
program_state_t* PS,
char* format_string,
microtime_t us,
int* line_count
)
{
hud_printf(
PS,
PS->line_height,
PS->line_height * (*line_count)++,
(ALIGN_LEFT | ALIGN_MIDDLE),
COLOR_TEXT_LO,
format_string,
us
);
}
void draw_debug( program_state_t* PS, game_state_t* GS )
{
#if DEBUG
int w = PS->window_width;
int h = PS->window_height;
int line_count = 3;
setup_gl_2D( w, h );
#if DEBUG_MEMORY
struct mallinfo mi = mallinfo();
hud_printf(
PS,
PS->line_height,
PS->line_height*line_count++,
ALIGN_LEFT | ALIGN_MIDDLE,
COLOR_TEXT_LO,
"Mem: uordblks(%d) delta(%d)",
(int) mi.uordblks,
(int) (PS->initial_TAS - mi.uordblks)
);
if (PS->initial_TAS == -1) {
PS->initial_TAS = mi.uordblks;
}
#endif
hud_printf(
PS,
PS->line_height,
PS->line_height*line_count++,
ALIGN_LEFT | ALIGN_MIDDLE,
COLOR_TEXT_LO,
"Tframe(%.3fms) F/s(%.3f)",
PS->average_frame_time / 1000.0,
1000000.0 / PS->average_frame_time
);
#if DEBUG_TIMES
debug_times(
PS, "highest_frame_time = %lld",
PS->highest_frame_time, &line_count
);
debug_times(
PS, "lowest_frame_time = %lld",
PS->lowest_frame_time, &line_count
);
debug_times(
PS, "pause_since_us = %lld",
PS->pause_since_us - PS->program_start_us, &line_count
);
debug_times(
PS, "current_time_us = %lld",
PS->current_time_us - PS->program_start_us, &line_count
);
debug_times(
PS, "game_time_us = %lld",
PS->game_time_us, &line_count
);
debug_times(
PS, "game_start_us = %lld",
PS->game_start_us - PS->program_start_us, &line_count
);
#endif
#if DEBUG_SHIP
hud_printf(
PS,
PS->line_height,
PS->line_height*line_count++,
ALIGN_LEFT | ALIGN_MIDDLE,
COLOR_TEXT_LO,
"ship.position = ( %g | %g | %g )",
GS->ship.position.x,
GS->ship.position.y,
GS->ship.position.z
);
hud_printf(
PS,
PS->line_height,
PS->line_height*line_count++,
ALIGN_LEFT | ALIGN_MIDDLE,
COLOR_TEXT_LO,
"ship.velocity = ( %g | %g | %g )",
GS->ship.velocity.x,
GS->ship.velocity.y,
GS->ship.velocity.z
);
hud_printf(
PS,
PS->line_height,
PS->line_height*line_count++,
ALIGN_LEFT | ALIGN_MIDDLE,
COLOR_TEXT_LO,
"camera_speed_pitch(%f) ",
GS->ship.camera_speed_pitch
);
#endif
#if DEBUG_GAME_STATISTICS
hud_printf(
PS,
PS->line_height,
PS->line_height*line_count++,
ALIGN_LEFT | ALIGN_MIDDLE,
COLOR_TEXT_LO,
"En Route(%d) Fired(%d) Missed(%d)",
GS->shots_en_route,
GS->shots_fired,
GS->shots_missed
);
hud_printf(
PS,
PS->line_height,
PS->line_height*line_count++,
ALIGN_LEFT | ALIGN_MIDDLE,
COLOR_TEXT_LO,
"Lsr(%d) Enm(%d %d %d %d) Xpl(%d) BBl(%d %d %d %d)",
GS->nr_active_lasers,
GS->nr_active_enemies[0],
GS->nr_active_enemies[1],
GS->nr_active_enemies[2],
GS->nr_active_enemies[3],
GS->nr_active_explosions,
GS->nr_active_bonus_bubbles[0],
GS->nr_active_bonus_bubbles[1],
GS->nr_active_bonus_bubbles[2],
GS->nr_active_bonus_bubbles[3]
);
calculate_total_score( PS, GS );
hud_printf(
PS,
PS->line_height,
PS->line_height*line_count++,
ALIGN_LEFT | ALIGN_MIDDLE,
COLOR_TEXT_LO,
"Speed bonus: %d",
GS->score.speed
);
hud_printf(
PS,
PS->line_height,
PS->line_height*line_count++,
ALIGN_LEFT | ALIGN_MIDDLE,
COLOR_TEXT_LO,
"nr_active_enemies(%d)",
GS->nr_active_enemies_total
);
hud_printf(
PS,
PS->line_height,
PS->line_height*line_count++,
ALIGN_LEFT | ALIGN_MIDDLE,
COLOR_TEXT_LO,
"add_enemy_beyond_y(%.2f) distance(%.2f)",
GS->add_enemy_beyond_y,
GS->ship.position.y - GS->add_enemy_beyond_y
);
#endif
hud_printf(
PS,
PS->line_height,
PS->line_height*line_count++,
ALIGN_LEFT | ALIGN_MIDDLE,
COLOR_TEXT_LO,
"%s %s",
PROGRAM_NAME,
PROGRAM_VERSION
);
#endif
}
/* draw_hud()
* Main HUD rendering function, calculates some statistics needed only for
* the display
*/
void draw_hud( program_state_t* PS, game_state_t* GS )
{
int w = PS->window_width;
int h = PS->window_height;
setup_gl_2D( w, h );
hud_draw_level_nr( PS, GS );
draw_hud_panel_background( PS, ALIGN_TOP );
/* TIME, HIT RATIO, SCORE */
hud_print_time(
PS,
1*PS->line_height,
h - 3*PS->line_height/2,
ALIGN_LEFT,
COLOR_TEXT_LO,
PS->game_time_us
);
hud_printf(
PS,
7*PS->line_height,
h - 3*PS->line_height/2,
ALIGN_LEFT,
COLOR_TEXT_LO,
"HR:%.0f%%",
calculate_hit_ratio(GS) * 100.0
);
hud_printf(
PS,
11.5*PS->line_height,
h - 3*PS->line_height/2,
ALIGN_LEFT,
COLOR_TEXT_HI,
"SCORE:%d",
GS->score.current
);
/* WEAPON STATE */
hud_weapon_state(
PS, GS, WEAPON_LASER_1, "[LSR]",
w - 12 * PS->line_height,
h - 3*PS->line_height/2
);
hud_weapon_state(
PS, GS, WEAPON_LASER_2, "[DBL]",
w - 9 * PS->line_height,
h - 3*PS->line_height/2
);
hud_weapon_state(
PS, GS, WEAPON_ROUNDSHOT, "[RSH]",
w - 6 * PS->line_height,
h - 3*PS->line_height/2
);
hud_weapon_state(
PS, GS, WEAPON_AUTOFIRE, "[AF] ",
w - 3 * PS->line_height,
h - 3*PS->line_height/2
);
/* RESOURCE */
draw_hud_resource( PS, GS );
/* ENEMIES */
hud_current_enemies( PS, GS );
/* BOTTOM MENU (MAIN MENU, PAUSE) */
if (PS->run_mode & (RM_PAUSE | RM_MAIN_MENU)) {
draw_hud_panel_background( PS, ALIGN_BOTTOM );
hud_printf(
PS,
w/2,
PS->line_height/2,
ALIGN_CENTER,
0xFFFFFF,
(PS->run_mode == RM_PAUSE)
? "PAUSE - Press [RETURN] to continue, [ESC] to exit the game."
: "Press [RETURN] to start a new game, [ESC] to exit the game."
);
}
/* AFTER LIFE SCORE */
if (PS->run_mode & (RM_MAIN_MENU | RM_PAUSE)) {
hud_score_summary( PS, GS );
}
}
/* hud_score_summary()
* Display a detailed explanation how score was calculated.
* Details need to be manually adjusted the algorithm in
* game.c: calculate_total_score()
*/
void hud_score_summary( program_state_t* PS, game_state_t* GS )
{
int w = PS->window_width;
int h = PS->window_height;
int x = w/2;
int y = 3*h/5;
int i = 6; // Initial upwards offset, half of text shown
int score = GS->score.current;
int total_score = calculate_total_score( PS, GS );
//...int s_elapsed = PS->game_time_us / 1000000.0;
score_info_t* si = &(GS->score);
hud_printf(
PS,
x,
y + (i--) * (PS->line_height),
ALIGN_CENTER, 0xAAAAAA,
"SCORE %7d",
score
);
#ifdef DISABLED_CODE
hud_printf(
PS,
x,
y + (i--) * (PS->line_height),
ALIGN_CENTER, 0xAAAAAA,
"DISTANCE %7d x%7d = %7d",
si->distance,
BONUS_FACTOR_DISTANCE,
BONUS_FACTOR_DISTANCE * si->distance
);
hud_printf(
PS,
x,
y + (i--) * (PS->line_height),
ALIGN_CENTER, 0xAAAAAA,
"FRENZY %5d /%5d * %6d = %7d",
GS->enemies_killed,
si->distance,
BONUS_FACTOR_ENEMIES,
BONUS_FACTOR_ENEMIES * GS->enemies_killed /
( (si->distance == 0) ? 1 : si->distance )
);
#endif
--i; // Omit one line
hud_printf(
PS,
x,
y + (i--) * (PS->line_height),
ALIGN_CENTER, 0xAAAAAA,
"HIT RATIO %7d%% x%7d = %7d",
si->hit_ratio,
score,
score * si->hit_ratio/100
);
hud_printf(
PS,
x,
y + (i--) * (PS->line_height),
ALIGN_CENTER, 0xAAAAAA,
"SPEED BONUS %7d%% x%7d = %7d",
si->speed,
score,
score * si->speed/100
);
hud_printf(
PS,
x,
y + (i--) * (PS->line_height),
ALIGN_CENTER, 0xAAAAAA,
"ENERGY MAXIMUM %7d x%7d = %7d",
si->best_resource,
BONUS_FACTOR_BEST_RESOURCE,
BONUS_FACTOR_BEST_RESOURCE * si->best_resource
);
--i; // Omit one line
hud_printf(
PS,
x,
y + (i--) * (PS->line_height),
ALIGN_CENTER, 0xFFFFFF,
" TOTAL: %7d",
total_score
);
--i; // Omit one line
hud_printf(
PS,
x,
y + (i--) * (PS->line_height),
ALIGN_CENTER, 0xAAAAAA,
( total_score > GS->score.high_score ? "High Score!" : "High Score: %d (Wave %d)" ),
GS->score.high_score,
GS->score.high_score_level
);
}
void draw_hud_resource( program_state_t* PS, game_state_t* GS )
{
int i, j;
real_t x, y;
GLfloat R, G, B;
real_t bar_width, step_size;
real_t resource;
int resource_color;
int hit_points = calculate_hit_points( GS->current_resource );
microtime_t Tc = PS->current_time_us;
int w = PS->window_width;
int h = PS->window_height;
// In cheat mode, after the numbers are output as digits, ..
// ..we use an adjusted Resource value to get a nice bar size
resource
= GS->current_resource
#if CHEAT_MODE
/ CHEAT_RESOURCE_FACTOR
#endif
;
/* CALCULATE BASE COLOR indicating level of resource */
color_from_hue(
// The following ratio is manually tweaked to give nice..
// ..results up to 10K. Perhaps using log2 would be better?
fmin( 1.0, sqrt(GS->current_resource) / 100.0 ),
&R, &G, &B
);
resource_color // Pack the float values into..
= ((int)(R * 255) << 16) // ..a handy int.
+ ((int)(G * 255) << 8)
+ ((int)(B * 255) << 0)
;
/* RENDER RESOURCE as TEXT (ALIGN_TOP Panel) */
hud_printf(
PS,
PS->window_width/2,
h - 3*PS->line_height/2,
ALIGN_CENTER,
resource_color,
"ENERGY: %d (%d)",
GS->current_resource,
GS->best_resource
);
/* CALCULATE BLINK COLOR */
// From here on, everything rendered might be blinking
if (resource >= 200) {
/* Reuse R, G and B from above, no change needed */
} else {
if (resource < 50) i = 150000;
else if (resource < 100) i = 225000;
else if (resource < 150) i = 350000;
else { i = 500000;
}
GLfloat f = fabs((int)(Tc % i) - i/2) / ((GLfloat)i/2);
R = R * f;
G = G * f;
B = B * f;
// Additionally blink white, when Resource critically low
if ((resource < 50) && (Tc % 150000 < 50000)) {
R = G = B = 1.0;
}
}
resource_color // Pack the float values into..
= ((int)(R * 255) << 16) // ..a handy int.
+ ((int)(G * 255) << 8)
+ ((int)(B * 255) << 0)
;
/* RESOURCE BAR */
// Calculate size of the bar
bar_width = sqrt(resource) * 10.0; //... Perhaps we should use log2 ?
step_size = round( bar_width / hit_points );
glBegin( GL_LINES );
glColor3f( R, G, B );
for( i = 0 ; i < 5 ; i++ ) {
for( j = 0 ; j < hit_points ; j++ ) {
x = (w - bar_width)/2 + (real_t)j * step_size;
y = h - 3*PS->line_height + i*2;
glVertex2i( x + 1.0, y );
glVertex2i( x - 1.0 + step_size, y );
}
}
glEnd();
hud_printf(
PS,
PS->window_width/2,
h - 9*PS->line_height/2,
ALIGN_CENTER,
resource_color,
"%d",
hit_points
);
}
void hud_draw_level_nr( program_state_t* PS, game_state_t* GS )
{
const int w = LEVEL_QUAD_WIDTH;
const int h = LEVEL_QUAD_HEIGHT;
const int y = LEVEL_OFFSET_Y;
int number;
GLfloat digit_x;
bool_t draw_zero;
int quad_x = LEVEL_OFFSET_X - LEVEL_QUAD_WIDTH/2;
number = GS->current_level;
draw_zero = (number == 0);
while (number > 9) {
quad_x += LEVEL_QUAD_WIDTH/2;
number /= 10;
}
number = GS->current_level;
glEnable( GL_BLEND );
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
glEnable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, PS->textures.digits );
glBegin( GL_QUADS );
glColor4f( 1,1,1, 0.5 );
// more centered vertically.
while (number || draw_zero) {
digit_x = ((number % 10) / 10.0);
draw_zero = FALSE; // Only draw the zero once
glTexCoord2f( digit_x, 1 ); glVertex2i( quad_x, y-h/2 );
glTexCoord2f( digit_x+0.1, 1 ); glVertex2i( quad_x+w, y-h/2 );
glTexCoord2f( digit_x+0.1, 0 ); glVertex2i( quad_x+w, y+h/2 );
glTexCoord2f( digit_x, 0 ); glVertex2i( quad_x, y+h/2 );
quad_x -= LEVEL_QUAD_WIDTH;
number /= 10;
}
glEnd();
glDisable( GL_TEXTURE_2D );
glDisable( GL_BLEND );
hud_printf(
PS,
LEVEL_OFFSET_X,
LEVEL_OFFSET_Y - LEVEL_QUAD_HEIGHT - PS->line_height/2,
ALIGN_CENTER,
0x808080,
"WAVE"
);
if (GS->show_wave_until_us > PS->current_time_us) {
int w = PS->window_width;
int h = PS->window_height;
real_t fade
= (real_t)(GS->show_wave_until_us - PS->current_time_us)
/ NEXT_WAVE_NOTICE_DURATION
;
fade = sin( fade * 1.444 );
int color
= ( (int)(fade * (real_t)0x44) * 0x10000 )
+ ( (int)(fade * (real_t)0xAA) * 0x100 )
+ ( (int)(fade * (real_t)0x11) )
;
hud_printf(
PS,
w/2, 4*h/6, ALIGN_CENTER, color, "Wave %d",
GS->current_level
);
}
}