void sea_event(SDL_Event event) {
camera* cam = entity_get("camera");
light* sun = entity_get("sun");
camera_control_orbit(cam, event);
switch(event.type){
case SDL_KEYUP:
if (event.key.keysym.sym == SDLK_SPACE) {
//char ball_name[20];
//sprintf(ball_name, "ball_%i", ball_count);
//ball_count++;
//physics_object* ball = entity_new(ball_name, physics_object);
//ball->renderable = asset_get(P("./resources/ball.obj"));
//ball->collision_body = collision_body_new_sphere(sphere_new(v3_zero(), 1));
//ball->position = cam->position;
//ball->scale = v3(0.5, 0.5, 0.5);
//ball->velocity = v3_mul(v3_normalize(v3_sub(cam->target, cam->position)), 75);
}
case SDL_MOUSEMOTION:
mouse_x = event.motion.xrel;
mouse_y = event.motion.yrel;
break;
}
}
void scotland_event(SDL_Event event) {
camera* cam = entity_get("camera");
light* sun = entity_get("sun");
switch(event.type){
case SDL_KEYDOWN:
if (event.key.keysym.sym == SDLK_w) { w_held = true; }
if (event.key.keysym.sym == SDLK_a) { a_held = true; }
if (event.key.keysym.sym == SDLK_s) { s_held = true; }
if (event.key.keysym.sym == SDLK_d) { d_held = true; }
break;
case SDL_KEYUP:
if (event.key.keysym.sym == SDLK_w) { w_held = false; }
if (event.key.keysym.sym == SDLK_a) { a_held = false; }
if (event.key.keysym.sym == SDLK_s) { s_held = false; }
if (event.key.keysym.sym == SDLK_d) { d_held = false; }
break;
case SDL_MOUSEBUTTONDOWN:
break;
case SDL_MOUSEBUTTONUP:
break;
case SDL_MOUSEMOTION:
mouse_x = event.motion.xrel;
mouse_y = event.motion.yrel;
break;
}
}
void sea_render() {
static_object* s_seaplane = entity_get("seaplane");
static_object* s_skydome = entity_get("skydome");
static_object* s_corvette = entity_get("corvette");
light* sun = entity_get("sun");
light* backlight = entity_get("backlight");
shadow_mapper_begin();
shadow_mapper_render_static(s_corvette);
shadow_mapper_end();
forward_renderer_begin();
forward_renderer_render_static(s_skydome);
forward_renderer_render_static(s_seaplane);
forward_renderer_render_static(s_corvette);
physics_object* balls[100];
int num_balls;
entities_get(balls, &num_balls, physics_object);
for(int i = 0; i < num_balls; i++) {
//forward_renderer_render_physics(balls[i]);
}
//static_object* center_sphere = entity_get("center_sphere");
//forward_renderer_render_static(center_sphere);
forward_renderer_render_light(sun);
forward_renderer_render_light(backlight);
forward_renderer_end();
}
static void toggle_freecam(ui_button* b, SDL_Event event) {
if (event.type == SDL_MOUSEBUTTONDOWN) {
if (ui_button_contains_position(b, vec2_new(event.motion.x, event.motion.y))) {
b->pressed = true;
}
} else if (event.type == SDL_MOUSEBUTTONUP) {
if (b->pressed) {
b->pressed = false;
freecam = !freecam;
camera* cam = entity_get("camera");
landscape* world = entity_get("world");
vec3 cam_dir = vec3_normalize(vec3_sub(cam->target, cam->position));
float height = terrain_height(asset_hndl_ptr(world->terrain), vec2_new(cam->position.x, cam->position.z));
cam->position.y = height + 1;
cam->target = vec3_add(cam->position, cam_dir);
}
}
}
void scotland_update() {
camera* cam = entity_get("camera");
light* sun = entity_get("sun");
static_object* skydome = entity_get("skydome");
landscape* world = entity_get("world");
sun_orbit += frame_time() * 0.01;
sun->position.x = 512 + sin(sun_orbit) * 512;
sun->position.y = cos(sun_orbit) * 512;
sun->position.z = 512;
sun->target = vec3_new(512, 0, 512);
if (w_held || s_held) {
vec3 cam_dir = vec3_normalize(vec3_sub(cam->target, cam->position));
float speed = 0.5;
if (!freecam) speed = 0.05;
if (w_held) {
cam->position = vec3_add(cam->position, vec3_mul(cam_dir, speed));
}
if (s_held) {
cam->position = vec3_sub(cam->position, vec3_mul(cam_dir, speed));
}
if (!freecam) {
float height = terrain_height(asset_hndl_ptr(world->terrain), vec2_new(cam->position.x, cam->position.z));
cam->position.y = height + 1;
}
cam->target = vec3_add(cam->position, cam_dir);
}
Uint8 keystate = SDL_GetMouseState(NULL, NULL);
if(keystate & SDL_BUTTON(1)){
float a1 = -(float)mouse_x * 0.005;
float a2 = (float)mouse_y * 0.005;
vec3 cam_dir = vec3_normalize(vec3_sub(cam->target, cam->position));
cam_dir.y += -a2;
vec3 side_dir = vec3_normalize(vec3_cross(cam_dir, vec3_new(0,1,0)));
cam_dir = vec3_add(cam_dir, vec3_mul(side_dir, -a1));
cam_dir = vec3_normalize(cam_dir);
cam->target = vec3_add(cam->position, cam_dir);
}
mouse_x = 0;
mouse_y = 0;
ui_button* framerate = ui_elem_get("framerate");
ui_button_set_label(framerate, frame_rate_string());
}
void sea_update() {
camera* cam = entity_get("camera");
light* sun = entity_get("sun");
wave_time += frame_time();
static_object* corvette = entity_get("corvette");
corvette->position.y = (sin(wave_time) + 1) / 2;
corvette->rotation = v4_quaternion_pitch(sin(wave_time * 1.123) / 50);
corvette->rotation = v4_quaternion_mul(corvette->rotation, v4_quaternion_yaw(sin(wave_time * 1.254) / 25));
corvette->rotation = v4_quaternion_mul(corvette->rotation, v4_quaternion_roll(sin(wave_time * 1.355) / 100));
static_object* center_sphere = entity_get("center_sphere");
physics_object* balls[100];
int num_balls;
entities_get(balls, &num_balls, physics_object);
for(int i = 0; i < num_balls; i++) {
physics_object_collide_static(balls[i], center_sphere, frame_time());
physics_object_collide_static(balls[i], corvette, frame_time());
physics_object_update(balls[i], frame_time());
}
Uint8 keystate = SDL_GetMouseState(NULL, NULL);
if(keystate & SDL_BUTTON(1)) {
float a1 = -(float)mouse_x * 0.01;
float a2 = (float)mouse_y * 0.01;
cam->position = v3_sub(cam->position, cam->target);
cam->position = m33_mul_v3(m33_rotation_y( a1 ), cam->position );
cam->position = v3_add(cam->position, cam->target);
cam->position = v3_sub(cam->position, cam->target);
vector3 rotation_axis = v3_normalize(v3_cross( v3_sub(cam->position, v3_zero()) , v3(0,1,0) ));
cam->position = m33_mul_v3(m33_rotation_axis_angle(rotation_axis, a2 ), cam->position );
cam->position = v3_add(cam->position, cam->target);
}
if(keystate & SDL_BUTTON(3)) {
sun->position.x += (float)mouse_y / 2;
sun->position.z -= (float)mouse_x / 2;
}
mouse_x = 0;
mouse_y = 0;
ui_button* framerate = ui_elem_get("framerate");
ui_button_set_label(framerate, frame_rate_string());
}
static void reset_game() {
/* Set the starting level to demo.level */
current_level = asset_get(P("./levels/demo.level"));
level_score = 0;
level_time = 0.0;
/* New main character entity */
character* main_char = entity_get("main_char");
main_char->position = vec2_mul( vec2_new(20, 20), TILE_SIZE);
main_char->velocity = vec2_zero();
/* We can create multiple entities using a name format string like printf */
entities_new("coin_id_%i", COIN_COUNT, coin);
/* Get an array of pointers to all coin entities */
coin* coins[COIN_COUNT];
entities_get(coins, NULL, coin);
/* Set all the coin initial positions */
for(int i = 0; i < COIN_COUNT; i++) {
coins[i]->position = vec2_mul(coin_positions[i], TILE_SIZE);
}
/* Deactivate victory and new game UI elements */
ui_button* victory = ui_elem_get("victory");
ui_button* new_game = ui_elem_get("new_game");
victory->active = false;
new_game->active = false;
}
void metaballs_update() {
camera* cam = entity_get("camera");
light* sun = entity_get("sun");
Uint8 keystate = SDL_GetMouseState(NULL, NULL);
if(keystate & SDL_BUTTON(1)){
float a1 = -(float)mouse_x * frame_time() * 0.25;
float a2 = (float)mouse_y * frame_time() * 0.25;
cam->position = v3_sub(cam->position, cam->target);
cam->position = m33_mul_v3(m33_rotation_y( a1 ), cam->position );
cam->position = v3_add(cam->position, cam->target);
cam->position = v3_sub(cam->position, cam->target);
vector3 rotation_axis = v3_normalize(v3_cross( v3_sub(cam->position, v3_zero()) , v3(0,1,0) ));
cam->position = m33_mul_v3(m33_rotation_axis_angle(rotation_axis, a2 ), cam->position );
cam->position = v3_add(cam->position, cam->target);
}
if(keystate & SDL_BUTTON(3)){
sun->position.x += (float)mouse_y / 2;
sun->position.z -= (float)mouse_x / 2;
}
mouse_x = 0;
mouse_y = 0;
particles_update(frame_time());
ui_button* framerate = ui_elem_get("framerate");
ui_button_set_label(framerate, frame_rate_string());
#ifdef MARCHING_CUBES
marching_cubes_metaball_data( particle_positions_memory(), particles_count() );
marching_cubes_clear();
marching_cubes_update();
#endif
#ifdef VOLUME_RENDERER
volume_renderer_metaball_data( particle_positions_memory(), particles_count() );
volume_renderer_update();
#endif
}
void metaballs_event(SDL_Event event) {
camera* cam = entity_get("camera");
light* sun = entity_get("sun");
switch(event.type){
case SDL_KEYDOWN:
break;
case SDL_KEYUP:
if (event.key.keysym.sym == SDLK_SPACE) {
particles_reset();
}
if (event.key.keysym.sym == SDLK_w) {
wireframe = !wireframe;
}
break;
case SDL_MOUSEBUTTONUP:
break;
case SDL_MOUSEBUTTONDOWN:
if (event.button.button == SDL_BUTTON_WHEELUP) {
cam->position = v3_sub(cam->position, v3_normalize(v3_sub(cam->position, cam->target)));
}
if (event.button.button == SDL_BUTTON_WHEELDOWN) {
cam->position = v3_add(cam->position, v3_normalize(v3_sub(cam->position, cam->target)));
}
break;
case SDL_MOUSEMOTION:
mouse_x = event.motion.xrel;
mouse_y = event.motion.yrel;
break;
}
}
void vegetation_render() {
camera* cam = entity_get("camera");
vec2 pos = vec2_div(vec2_new(cam->position.x, cam->position.z), BLOCK_SIZE);
pos = vec2_clamp(pos, 1, 1022);
char blockname0[512]; char blockname1[512]; char blockname2[512];
char blockname3[512]; char blockname4[512]; char blockname5[512];
char blockname6[512]; char blockname7[512]; char blockname8[512];
sprintf(blockname0, "vegblock_%i_%i", (int)pos.x-1, (int)pos.y-1);
sprintf(blockname1, "vegblock_%i_%i", (int)pos.x , (int)pos.y-1);
sprintf(blockname2, "vegblock_%i_%i", (int)pos.x+1, (int)pos.y-1);
sprintf(blockname3, "vegblock_%i_%i", (int)pos.x-1, (int)pos.y );
sprintf(blockname4, "vegblock_%i_%i", (int)pos.x , (int)pos.y );
sprintf(blockname5, "vegblock_%i_%i", (int)pos.x+1, (int)pos.y );
sprintf(blockname6, "vegblock_%i_%i", (int)pos.x-1, (int)pos.y+1);
sprintf(blockname7, "vegblock_%i_%i", (int)pos.x , (int)pos.y+1);
sprintf(blockname8, "vegblock_%i_%i", (int)pos.x+1, (int)pos.y+1);
static_object* block0 = entity_get(blockname0);
static_object* block1 = entity_get(blockname1);
static_object* block2 = entity_get(blockname2);
static_object* block3 = entity_get(blockname3);
static_object* block4 = entity_get(blockname4);
static_object* block5 = entity_get(blockname5);
static_object* block6 = entity_get(blockname6);
static_object* block7 = entity_get(blockname7);
static_object* block8 = entity_get(blockname8);
/*
forward_renderer_render_static(block0);
forward_renderer_render_static(block1);
forward_renderer_render_static(block2);
forward_renderer_render_static(block3);
forward_renderer_render_static(block4);
forward_renderer_render_static(block5);
forward_renderer_render_static(block6);
forward_renderer_render_static(block7);
forward_renderer_render_static(block8);
*/
}
static void collision_detection_coins() {
/* We simply check if the player intersects with the coins */
character* main_char = entity_get("main_char");
vec2 top_left = vec2_add(main_char->position, vec2_new(-TILE_SIZE, -TILE_SIZE));
vec2 bottom_right = vec2_add(main_char->position, vec2_new(TILE_SIZE, TILE_SIZE));
/* Again we collect pointers to all the coin type entities */
int num_coins = 0;
coin* coins[COIN_COUNT];
entities_get(coins, &num_coins, coin);
for(int i = 0; i < num_coins; i++) {
/* Check if they are within the main char bounding box */
if ((coins[i]->position.x > top_left.x) &&
(coins[i]->position.x < bottom_right.x) &&
(coins[i]->position.y > top_left.y) &&
(coins[i]->position.y < bottom_right.y)) {
/* Remove them from the entity manager and delete */
char* coin_name = entity_name(coins[i]);
entity_delete(coin_name);
/* Play a nice twinkle sound */
audio_sound_play(asset_get_as(P("./sounds/coin.wav"), sound), 0);
/* Add some score! */
level_score += 10;
/* Update the ui text */
ui_button* score = ui_elem_get("score");
sprintf(score->label->string, "Score %06i", level_score);
ui_text_draw(score->label);
}
}
ui_button* victory = ui_elem_get("victory");
/* if all the coins are gone and the victory rectangle isn't disaplayed then show it */
if ((entity_type_count(coin) == 0) && (!victory->active)) {
ui_button* victory = ui_elem_get("victory");
ui_button* new_game = ui_elem_get("new_game");
victory->active = true;
new_game->active = true;
}
}
void sea_update() {
camera* cam = entity_get("camera");
light* sun = entity_get("sun");
wave_time += frame_time();
static_object* corvette = entity_get("corvette");
corvette->position.y = (sin(wave_time) + 1) / 2;
corvette->rotation = quaternion_pitch(sin(wave_time * 1.123) / 50);
corvette->rotation = quaternion_mul(corvette->rotation, quaternion_yaw(sin(wave_time * 1.254) / 25));
corvette->rotation = quaternion_mul(corvette->rotation, quaternion_roll(sin(wave_time * 1.355) / 100));
static_object* center_sphere = entity_get("center_sphere");
physics_object* balls[100];
int num_balls;
entities_get(balls, &num_balls, physics_object);
for(int i = 0; i < num_balls; i++) {
physics_object_collide_static(balls[i], center_sphere, frame_time());
physics_object_collide_static(balls[i], corvette, frame_time());
physics_object_update(balls[i], frame_time());
}
Uint8 keystate = SDL_GetMouseState(NULL, NULL);
if(keystate & SDL_BUTTON(3)){
sun->position.x += (float)mouse_y / 2;
sun->position.z -= (float)mouse_x / 2;
}
mouse_x = 0;
mouse_y = 0;
ui_button* framerate = ui_elem_get("framerate");
ui_button_set_label(framerate, frame_rate_string());
}
void metaballs_render() {
static_object* s_podium = entity_get("podium");
camera* cam = entity_get("camera");
light* sun = entity_get("sun");
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
#ifdef MARCHING_CUBES
shadow_mapper_begin();
shadow_mapper_render_static(s_podium);
marching_cubes_render_shadows(sun);
shadow_mapper_end();
forward_renderer_begin();
forward_renderer_render_static(s_podium);
forward_renderer_render_light(sun);
marching_cubes_render(wireframe, cam, sun);
forward_renderer_end();
#endif
#ifdef VOLUME_RENDERER
volume_renderer_render();
#endif
#ifndef VOLUME_RENDERER
#ifndef MARCHING_CUBES
particles_render();
#endif
#endif
ui_render();
SDL_GL_SwapBuffers();
}
void scotland_render() {
light* sun = entity_get("sun");
camera* cam = entity_get("camera");
landscape* world = entity_get("world");
static_object* skydome = entity_get("skydome");
shadow_mapper_begin();
shadow_mapper_render_landscape(world);
shadow_mapper_end();
//texture_write_to_file(shadow_mapper_depth_texture(), "shadow_depth.tga");
forward_renderer_begin();
if (!wireframe) {
forward_renderer_render_static(skydome);
}
if (wireframe) {
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
}
forward_renderer_render_landscape(world);
if (wireframe) {
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
if (!wireframe) {
vegetation_render();
}
forward_renderer_render_light(sun);
forward_renderer_end();
}
void vegetation_finish() {
for(int x = 0; x < X_NUM; x++)
for(int y = 0; y < Y_NUM; y++) {
char blockname[512];
sprintf(blockname, "vegblock_%i_%i", x, y);
static_object* block = entity_get(blockname);
//renderable_delete(block->renderable);
entity_delete(blockname);
}
free(blocks);
}
void particles_render() {
#ifdef OPEN_GL_CPU
#ifndef CPU_ONLY
kernel_memory_read(k_particle_positions, sizeof(vector4) * particle_count, particle_positions);
#endif
glBindBuffer(GL_ARRAY_BUFFER, positions_buffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(vector4) * particle_count, particle_positions, GL_DYNAMIC_COPY);
#ifndef CPU_ONLY
kernel_memory_read(k_particle_randoms, sizeof(vector4) * particle_count, particle_randoms);
#endif
glBindBuffer(GL_ARRAY_BUFFER, randoms_buffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(vector4) * particle_count, particle_randoms, GL_DYNAMIC_COPY);
#endif
camera* cam = entity_get("camera");
matrix_4x4 viewm = camera_view_matrix(cam);
matrix_4x4 projm = camera_proj_matrix(cam, graphics_viewport_ratio() );
m44_to_array(viewm, view_matrix);
m44_to_array(projm, proj_matrix);
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf(view_matrix);
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(proj_matrix);
glBindBuffer(GL_ARRAY_BUFFER, positions_buffer);
glVertexPointer(4, GL_FLOAT, 0, (void*)0);
glEnableClientState(GL_VERTEX_ARRAY);
glBindBuffer(GL_ARRAY_BUFFER, randoms_buffer);
glColorPointer(4, GL_FLOAT, 0, (void*)0);
glEnableClientState(GL_COLOR_ARRAY);
glDrawArrays(GL_POINTS, 0, particle_count);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
}
void platformer_update() {
character* main_char = entity_get("main_char");
if (left_held) {
main_char->velocity.x -= 0.1;
main_char->facing_left = true;
} else if (right_held) {
main_char->velocity.x += 0.1;
main_char->facing_left = false;
} else {
main_char->velocity.x *= 0.95;
}
/* Give the player some gravity speed */
const float gravity = 0.2;
main_char->velocity.y += gravity;
/* Update moves position based on velocity */
character_update(main_char);
/* Two phases of collision detection */
collision_detection();
collision_detection_coins();
/* Camera follows main character */
camera_position = vec2_new(main_char->position.x, -main_char->position.y);
/* Update the framerate text */
ui_button* framerate = ui_elem_get("framerate");
ui_button_set_label(framerate, frame_rate_string());
/* Update the time text */
ui_button* victory = ui_elem_get("victory");
if (!victory->active) {
level_time += frame_time();
ui_button* time = ui_elem_get("time");
sprintf(time->label->string, "Time %06i", (int)level_time);
ui_text_draw(time->label);
}
}
void platformer_event(SDL_Event event) {
switch(event.type){
case SDL_KEYDOWN:
if (event.key.keysym.sym == SDLK_LEFT) { left_held = true; }
if (event.key.keysym.sym == SDLK_RIGHT) { right_held = true; }
/* Up key used to "jump". Just adds to up velocity and flaps wings of icon */
if (event.key.keysym.sym == SDLK_UP) {
character* main_char = entity_get("main_char");
main_char->velocity.y -= 5.0;
main_char->flap_timer = 0.15;
}
break;
case SDL_KEYUP:
if (event.key.keysym.sym == SDLK_LEFT) { left_held = false; }
if (event.key.keysym.sym == SDLK_RIGHT) { right_held = false; }
break;
}
}
int main(int argc, char **argv) {
#ifdef _WIN32
FILE* ctt = fopen("CON", "w" );
FILE* fout = freopen( "CON", "w", stdout );
FILE* ferr = freopen( "CON", "w", stderr );
#endif
corange_init("../../assets_core");
graphics_viewport_set_title("Teapot");
graphics_viewport_set_size(1280, 720);
camera* cam = entity_new("camera", camera);
cam->position = vec3_new(5, 5, 5);
cam->target = vec3_new(0, 0, 0);
teapot_shader = asset_hndl_new_load(P("./assets/teapot.mat"));
teapot_object = asset_hndl_new_load(P("./assets/teapot.obj"));
int running = 1;
SDL_Event e = {0};
while(running) {
frame_begin();
camera* cam = entity_get("camera");
while(SDL_PollEvent(&e)) {
switch(e.type){
case SDL_KEYDOWN:
case SDL_KEYUP:
if (e.key.keysym.sym == SDLK_ESCAPE) { running = 0; }
if (e.key.keysym.sym == SDLK_PRINTSCREEN) { graphics_viewport_screenshot(); }
if (e.key.keysym.sym == SDLK_r &&
e.key.keysym.mod == KMOD_LCTRL) {
asset_reload_all();
}
break;
case SDL_QUIT:
running = 0;
break;
}
camera_control_orbit(cam, e);
ui_event(e);
}
ui_update();
glClearColor(0.25, 0.25, 0.25, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
shader_program* shader = material_first_program(asset_hndl_ptr(&teapot_shader));
shader_program_enable(shader);
shader_program_set_mat4(shader, "world", mat4_id());
shader_program_set_mat4(shader, "view", camera_view_matrix(cam));
shader_program_set_mat4(shader, "proj", camera_proj_matrix(cam));
shader_program_set_texture(shader, "cube_beach", 0, asset_hndl_new_load(P("$CORANGE/water/cube_sea.dds")));
shader_program_set_vec3(shader, "camera_direction", camera_direction(cam));
renderable* r = asset_hndl_ptr(&teapot_object);
for(int i=0; i < r->num_surfaces; i++) {
renderable_surface* s = r->surfaces[i];
int mentry_id = min(i, ((material*)asset_hndl_ptr(&r->material))->num_entries-1);
material_entry* me = material_get_entry(asset_hndl_ptr(&r->material), mentry_id);
glBindBuffer(GL_ARRAY_BUFFER, s->vertex_vbo);
shader_program_enable_attribute(shader, "vPosition", 3, 18, (void*)0);
shader_program_enable_attribute(shader, "vNormal", 3, 18, (void*)(sizeof(float) * 3));
//shader_program_enable_attribute(shader, "vTangent", 3, 18, (void*)(sizeof(float) * 6));
//shader_program_enable_attribute(shader, "vBinormal", 3, 18, (void*)(sizeof(float) * 9));
//shader_program_enable_attribute(shader, "vTexcoord", 2, 18, (void*)(sizeof(float) * 12));
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, s->triangle_vbo);
glDrawElements(GL_TRIANGLES, s->num_triangles * 3, GL_UNSIGNED_INT, (void*)0);
shader_program_disable_attribute(shader, "vPosition");
shader_program_disable_attribute(shader, "vNormal");
//shader_program_disable_attribute(shader, "vTangent");
//shader_program_disable_attribute(shader, "vBinormal");
//shader_program_disable_attribute(shader, "vTexcoord");
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
shader_program_disable(shader);
glDisable(GL_DEPTH_TEST);
ui_render();
graphics_swap();
frame_end();
}
corange_finish();
return 0;
}
static void collision_detection() {
/*
Collision is fairly simplistic and looks something like this.
@-----@ We check for collision in those points here which
@ @ are @ signs. If any are colliding with a solid tile
| | then we shift the player so that they are no longer
@ @ colliding with it. Also invert the velocity.
@-----@
*/
character* main_char = entity_get("main_char");
const float buffer = 4;
const float bounce = 0.5;
vec2 diff;
/* Bottom Collision */
diff = vec2_fmod(main_char->position, TILE_SIZE);
vec2 bottom1 = vec2_add(main_char->position, vec2_new(buffer, TILE_SIZE));
vec2 bottom2 = vec2_add(main_char->position, vec2_new(TILE_SIZE - buffer, TILE_SIZE));
bool bottom1_col = tile_has_collision(level_tile_at(current_level, bottom1));
bool bottom2_col = tile_has_collision(level_tile_at(current_level, bottom2));
if (bottom1_col || bottom2_col) {
main_char->position = vec2_add(main_char->position, vec2_new(0,-diff.y));
main_char->velocity.y *= -bounce;
}
/* Top Collision */
diff = vec2_fmod(main_char->position, TILE_SIZE);
vec2 top1 = vec2_add(main_char->position, vec2_new(buffer, 0));
vec2 top2 = vec2_add(main_char->position, vec2_new(TILE_SIZE - buffer, 0));
bool top1_col = tile_has_collision(level_tile_at(current_level, top1));
bool top2_col = tile_has_collision(level_tile_at(current_level, top2));
if (top1_col || top2_col) {
main_char->position = vec2_add(main_char->position, vec2_new(0, TILE_SIZE - diff.y));
main_char->velocity.y *= -bounce;
}
/* Left Collision */
diff = vec2_fmod(main_char->position, TILE_SIZE);
vec2 left1 = vec2_add(main_char->position, vec2_new(0, buffer));
vec2 left2 = vec2_add(main_char->position, vec2_new(0, TILE_SIZE - buffer));
bool left1_col = tile_has_collision(level_tile_at(current_level, left1));
bool left2_col = tile_has_collision(level_tile_at(current_level, left2));
if (left1_col || left2_col) {
main_char->position = vec2_add(main_char->position, vec2_new(TILE_SIZE - diff.x,0));
main_char->velocity.x *= -bounce;
}
/* Right Collision */
diff = vec2_fmod(main_char->position, TILE_SIZE);
vec2 right1 = vec2_add(main_char->position, vec2_new(TILE_SIZE, buffer));
vec2 right2 = vec2_add(main_char->position, vec2_new(TILE_SIZE, TILE_SIZE - buffer));
bool right1_col = tile_has_collision(level_tile_at(current_level, right1));
bool right2_col = tile_has_collision(level_tile_at(current_level, right2));
if (right1_col || right2_col) {
main_char->position = vec2_add(main_char->position, vec2_new(-diff.x,0));
main_char->velocity.x *= -bounce;
}
}