diff options
Diffstat (limited to 'src/state.c')
| -rw-r--r-- | src/state.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/state.c b/src/state.c new file mode 100644 index 0000000..8cd3cca --- /dev/null +++ b/src/state.c @@ -0,0 +1,126 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* state.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: charles <charles.cabergs@gmail.com> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/05/11 01:31:10 by charles #+# #+# */ +/* Updated: 2020/05/14 14:59:48 by charles ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "scop.h" + +/* static void st_resize_callback(GLFWwindow *window, int width, int height) */ +/* { */ +/* (void)window; */ +/* glViewport(0, 0, width, height); */ +/* ftm_mat4init_perspective(&g_state->proj, state.fov, (float)width / (float)height, 0.1, 100.0); */ +/* } */ + +static void st_handle_event(t_state *state) +{ + SDL_Event e; + + while (SDL_PollEvent(&e)) + { + if (e.type == SDL_QUIT) + state->running = false; + else if (e.type == SDL_KEYDOWN) + { + if (e.key.keysym.sym == SDLK_ESCAPE) + state->running = false; + else if (e.key.keysym.sym == SDLK_p) + { + if (state->polygon_mode == GL_FILL) + state->polygon_mode = GL_LINE; + else if (state->polygon_mode == GL_LINE) + state->polygon_mode = GL_POINT; + else if (state->polygon_mode == GL_POINT) + state->polygon_mode = GL_FILL; + GL_CALL(glPolygonMode(GL_FRONT_AND_BACK, state->polygon_mode)); + } + } + else if (e.type == SDL_MOUSEWHEEL) + { + if (e.wheel.y > 0) + { + state->fov -= M_PI / 70.0f; + if (state->fov <= M_PI_4 / 3) + state->fov = M_PI_4 / 3; + } + else if (e.wheel.y < 0) + { + state->fov += M_PI / 70.0f; + if (state->fov >= M_PI - M_PI_4 / 3) + state->fov = M_PI - M_PI_4 / 3; + } + scene_update_proj(&state->scene, state->fov, state->width, state->height); + } + } +} + +bool state_init(t_state *state, t_model_data *data) +{ + if (SDL_Init(SDL_INIT_VIDEO) < 0) + return (false); + SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 4); + SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0); + SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE); + SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); + state->window = SDL_CreateWindow( + "scop", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, + WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_OPENGL); + if (state->window == NULL) + return (false); + state->context = SDL_GL_CreateContext(state->window); + if (glewInit() != GLEW_OK) + return (false); + SDL_GL_SetSwapInterval(1); + GL_CALL(glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT)); + GL_CALL(glEnable(GL_DEPTH_TEST)); + GL_CALL(glPolygonMode(GL_FRONT_AND_BACK, GL_LINE)); + + if (!shader_init(&state->shader)) + return (false); + scene_init(&state->scene, data); + + state->fov = M_PI_4; + state->running = true; + state->polygon_mode = GL_LINE; + state->width = WINDOW_WIDTH; + state->height = WINDOW_HEIGHT; + return (true); +} + +void state_run(t_state *state) +{ + float rotation; + + rotation = M_PI_4; + while (state->running) + { + GL_CALL(glClearColor(0.1f, 0.1f, 0.1f, 1.0f)); + GL_CALL(glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)); + + GL_CALL(glUseProgram(state->shader.id)); + shader_update_mvp(&state->shader, &state->scene); + GL_CALL(glBindVertexArray(state->scene.vertex_array)); + GL_CALL(glDrawElements(GL_TRIANGLES, state->scene.index_buf_size, GL_UNSIGNED_INT, (void*)0)); + + scene_update_model(&state->scene, rotation); + SDL_GL_SwapWindow(state->window); + st_handle_event(state); + rotation += M_PI / 100.0; + } +} + +void state_quit(t_state *state) +{ + scene_quit(&state->scene); + GL_CALL(glDeleteProgram(state->shader.id)); + SDL_GL_DeleteContext(state->context); + SDL_DestroyWindow(state->window); + SDL_Quit(); +} |