#include <stdlib.h>
#include <stdio.h>
-#include <math.h>
+#include <assert.h>
#include "sdr.h"
-
-#define CURVE_VS "sdr/curve_top.v.glsl"
-#define CURVE_FS "sdr/curve_top.f.glsl"
-#define BEAM_VS "sdr/beam.v.glsl"
-#define BEAM_FS "sdr/beam.f.glsl"
+#include "geom.h"
+#include "seq.h"
#define BEAM_SHELLS 40
#define BEAM_RMIN 0.01
#define BEAM_RMAX 0.125
#define BEAM_ENERGY 0.02
#define BEAM_LEN 16.0
-
-#define BEAM_START_ANGLE 180
-#define BEAM_STOP_ANGLE 359
-
-enum State {
- ST_DEFAULT,
- ST_CAM_WAIT,
- ST_CAM_STOP,
- ST_XLOGO
-};
+#define BEAM_DEF_SPEED 0.1
static bool init();
static void cleanup();
-static void faros();
+static void display();
static void light();
-static void ground();
static void backdrop();
-static void xlogo();
-static void update_anim();
-
-static void display();
static void idle();
static void reshape(int x, int y);
static void keyboard(unsigned char c, int x, int y);
static void mbutton(int bn, int state, int x, int y);
static void mmotion(int x, int y);
-static inline float smoothstep(float a, float b, float x);
-
static float cam_theta = 45, cam_phi, cam_dist = 10;
-static unsigned int sdr_curve_top, sdr_beam, sdr_sky;
+static unsigned int sdr_beam, sdr_sky;
static long start_time;
-static float anim_speed = 1.0;
static long anim_stop_time;
-static long tmsec;
-static float beam_speed = 0.1;
-static float beam_angle;
-static float prev_beam_angle;
-static State state;
+static long tmsec, prev_tmsec;
static const float sil_color[] = {0.05, 0.02, 0.1, 1.0};
static const float beam_color[] = {0.5, 0.4, 0.2, 1.0};
+static float beam_angle, beam_speed;
+
int main(int argc, char **argv)
{
glutInit(&argc, argv);
glEnable(GL_NORMALIZE);
- if(!(sdr_curve_top = create_program_load(CURVE_VS, CURVE_FS)))
+ if(!init_geom()) {
return false;
-
- if(!(sdr_beam = create_program_load(BEAM_VS, BEAM_FS)))
+ }
+ if(!(sdr_beam = create_program_load("sdr/beam.v.glsl", "sdr/beam.f.glsl")))
return false;
if(!(sdr_sky = create_program_load("sdr/sky.v.glsl", "sdr/sky.f.glsl"))) {
return false;
}
+ if(!init_seq()) {
+ return false;
+ }
+ add_seq_track("beam-speed", INTERP_SIGMOID, EXTRAP_CLAMP, BEAM_DEF_SPEED);
+ load_seq("seq");
+
start_time = glutGet(GLUT_ELAPSED_TIME);
+ prev_tmsec = start_time;
return true;
}
static void cleanup()
{
+ destroy_seq();
+ destroy_geom();
+ free_program(sdr_beam);
+ free_program(sdr_sky);
}
-static void faros()
+static void display()
{
- glColor3fv(sil_color);
-
- // kormos
- glPushMatrix();
- glScalef(1.1, 3, 1.1);
- glTranslatef(0, 0.5, 0);
- glutSolidCube(1.0);
- glPopMatrix();
-
- glShadeModel(GL_FLAT);
-
- // base
- glPushMatrix();
- glRotatef(90, 1, 0, 0);
- glTranslatef(0, -0.15, 0);
- glutSolidCylinder(2, 0.3, 16, 1);
- glPopMatrix();
+ tmsec = (long)glutGet(GLUT_ELAPSED_TIME) - start_time;
+ float dt = (tmsec - prev_tmsec) / 1000.0f;
+ prev_tmsec = tmsec;
- // middle cylinder
- glPushMatrix();
- glTranslatef(0, 3, 0);
- glRotatef(22.5, 0, 1, 0);
- glRotatef(-90, 1, 0, 0);
- glutSolidCylinder(0.5, 1.0, 8, 1);
- glPopMatrix();
+ if(anim_stop_time) dt = 0.0f;
- // trim middle cylinder (mporntoura)
- glPushMatrix();
- glTranslatef(0, 3.9, 0);
- glRotatef(22.5, 0, 1, 0);
- glRotatef(-90, 1, 0, 0);
- glutSolidCylinder(0.55, 0.02, 8, 1);
- glPopMatrix();
-
- // top smaller cylinder
- glPushMatrix();
- glTranslatef(0, 4, 0);
- glRotatef(22.5, 0, 1, 0);
- glRotatef(-90, 1, 0, 0);
- glutSolidCylinder(0.28, 0.5, 8, 1);
- glPopMatrix();
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ backdrop();
- // top wire even smaller cylinder
- glPushMatrix();
- glTranslatef(0, 4.5, 0);
- glRotatef(22.5, 0, 1, 0);
- glRotatef(-90, 1, 0, 0);
- glutWireCylinder(0.18, 0.3, 9, 3);
- glPopMatrix();
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
- glShadeModel(GL_SMOOTH);
+ glTranslatef(0, -2, -cam_dist);
+ glRotatef(cam_phi, 1, 0, 0);
+ glRotatef(cam_theta, 0, 1, 0);
- // top troulos
- glPushMatrix();
- glTranslatef(0, 4.8, 0);
- glRotatef(22.5, 0, 1, 0);
- glRotatef(-90, 1, 0, 0);
- glutSolidCone(0.18, 0.2, 9, 1);
- glPopMatrix();
+ glColor3fv(sil_color);
+ ground();
+ faros();
- // tsamploukano
glPushMatrix();
- glTranslatef(-0.28, 4, 0);
- glScalef(1, 13, 1);
- glutSolidSphere(0.1, 16, 16);
- glPopMatrix();
- //pyramid on top of kormos
- bind_program(sdr_curve_top);
+ beam_speed = get_seq_value("beam-speed", tmsec);
+ beam_angle += beam_speed * 360.0f * dt;
+ glRotatef(beam_angle, 0, 1, 0);
+ light();
- glPushMatrix();
- glTranslatef(0, 3, 0);
- glRotatef(45, 0, 1, 0);
- glRotatef(-90, 1, 0, 0);
- glScalef(1, 1, 0.45);
- glutSolidCylinder(1, 1, 4, 16);
glPopMatrix();
- bind_program(0);
+ glutSwapBuffers();
}
static void light()
glPopAttrib();
}
-static void ground()
-{
- glPushMatrix();
-
- glTranslatef(0, -1.25, 0);
- glScalef(1, 0.1, 1);
-
- glColor3fv(sil_color);
- glutSolidSphere(10, 32, 32);
-
- glPopMatrix();
-}
-
static void backdrop()
{
glFrontFace(GL_CW);
glFrontFace(GL_CCW);
}
-static void xlogo()
-{
- glPushMatrix();
-
- glPopMatrix();
-}
-
-static void update_anim(long tmsec)
-{
- static float beam_start_time;
- static float beam_stop_interval;
-
- float tsec = (float)tmsec / 1000.0;
- float tanim = tsec * anim_speed;
-
- if(state == ST_CAM_WAIT) {
- if(beam_angle >= BEAM_START_ANGLE && prev_beam_angle < BEAM_START_ANGLE) {
- state = ST_CAM_STOP;
- printf("func: %s\n", __func__);
- printf("state from wait to stop (ba: %f)\n", beam_angle);
- beam_start_time = tmsec;
- beam_stop_interval = beam_angle / beam_speed; // 400 / beam_speed;
- printf(" stop interval: %f\n", beam_stop_interval);
- }
- }
- if(state == ST_CAM_STOP) {
- float t = smoothstep(beam_start_time, beam_start_time + beam_stop_interval, tmsec);
- prev_beam_angle = beam_angle;
- beam_angle = BEAM_START_ANGLE + (BEAM_STOP_ANGLE - BEAM_START_ANGLE) * t;
-
- if(t >= 1) {
- printf("state from stop to xlogo\n");
- state = ST_XLOGO;
- }
- } else if(state == ST_XLOGO) {
-
- } else {
- prev_beam_angle = beam_angle;
- beam_angle = fmod(tanim * beam_speed * 360, 360.0);
- }
-}
-
-static void display()
-{
- if(anim_stop_time > 0) {
- tmsec = anim_stop_time - start_time;
- } else {
- tmsec = (long)glutGet(GLUT_ELAPSED_TIME) - start_time;
- }
-
- update_anim(tmsec);
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- backdrop();
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- glTranslatef(0, -2, -cam_dist);
- glRotatef(cam_phi, 1, 0, 0);
- glRotatef(cam_theta, 0, 1, 0);
-
- ground();
- faros();
-
- glPushMatrix();
-
- glRotatef(beam_angle, 0, 1, 0);
- light();
-
- glPopMatrix();
-
- glutSwapBuffers();
-}
static void idle()
{
gluPerspective(50, (float)x / (float)y, 0.5, 500);
}
-static long calc_timeshift(float prev_speed, float speed)
-{
- long delta = tmsec * speed - tmsec * prev_speed;
- return delta / speed;
-}
-
#define ANIM_DELTA 0.5
static void keyboard(unsigned char c, int x, int y)
{
- float prev_anim_speed;
+ int idx;
+ static float orig_beam_speed;
switch(c) {
case 27:
exit(0);
+ case '\b':
+ start_time = glutGet(GLUT_ELAPSED_TIME);
+ prev_tmsec = 0;
+ anim_stop_time = 0;
+ beam_angle = 0;
+ break;
+
case ' ':
if(anim_stop_time > 0) {
- start_time += glutGet(GLUT_ELAPSED_TIME) - anim_stop_time;
+ long msec = glutGet(GLUT_ELAPSED_TIME);
+ start_time += msec - anim_stop_time;
+ prev_tmsec = msec - start_time;
anim_stop_time = 0;
} else {
anim_stop_time = glutGet(GLUT_ELAPSED_TIME);
break;
case '=':
- start_time += calc_timeshift(anim_speed, anim_speed + ANIM_DELTA);
- anim_speed += ANIM_DELTA;
+ beam_speed = get_seq_value("beam-speed", tmsec);
+ clear_seq_track("beam-speed");
+ set_seq_value("beam-speed", tmsec, beam_speed + ANIM_DELTA);
break;
case '-':
- prev_anim_speed = anim_speed;
- anim_speed -= ANIM_DELTA;
- if(anim_speed < 0)
- anim_speed = 0;
- start_time += calc_timeshift(prev_anim_speed, anim_speed);
+ beam_speed = get_seq_value("beam-speed", tmsec) - ANIM_DELTA;
+ if(beam_speed < 0)
+ beam_speed = 0;
+ clear_seq_track("beam-speed");
+ set_seq_value("beam-speed", tmsec, beam_speed);
break;
- case '\n':
case '\r':
- switch(state) {
- case ST_DEFAULT:
- state = ST_CAM_WAIT;
- prev_beam_angle = beam_angle;
- printf("from default to cam_wait\n");
- break;
- case ST_XLOGO:
- printf("from xlogo to default\n");
- state = ST_DEFAULT;
- start_time = tmsec;
- break;
- default:
- break;
+ case '\n':
+ idx = find_seq_track("beam-speed");
+ assert(idx >= 0);
+ if(get_seq_value(idx, tmsec) > 0.0) {
+ clear_seq_track(idx);
+ set_seq_value(idx, tmsec, beam_speed);
+ set_seq_value(idx, tmsec + 3000, 0);
+ orig_beam_speed = beam_speed;
+ } else {
+ clear_seq_track(idx);
+ set_seq_value(idx, tmsec, 0);
+ set_seq_value(idx, tmsec + 3000, orig_beam_speed);
}
break;
+
default:
break;
}
cam_dist = 0;
}
}
-
-static inline float smoothstep(float a, float b, float x)
-{
- if(x < a) return 0.0f;
- if(x >= b) return 1.0f;
-
- x = (x - a) / (b - a);
- return x * x * (3.0f - 2.0f * x);
-}
projects / faros-demo / blobdiff