initial

2 files changed, 52 insertions, 0 deletions

diff --git a/src/game/game.c b/src/game/game.c
new file mode 100644
index 0000000..25c71fa
--- /dev/null
+++ b/src/game/game.c
@@ -0,0 +1,41 @@
+void game_init(State *state)
+{
+	U64 persistent_size = Megabytes(1);
+	state->persistent_arena = arena_alloc(persistent_size);
+	state->shader = create_shader_program(str8lit("shaders/default.vert"),
+					      str8lit("shaders/default.frag"));
+	Vertex verts[] = {
+		vertex(v3(-0.5f, -0.5f, 0.0f)),
+		vertex(v3(0.0f, 0.5f, 0.0f)),
+		vertex(v3(0.5f, -0.5f, 0.0f))
+	};
+
+	U32 indices[] = { 0, 1, 2 };
+
+	state->the_mesh = mesh(state->persistent_arena, verts, ArrayCount(verts), indices, ArrayCount(indices));
+}
+
+void game_update_and_render(State *state, Input *input)
+{
+	/* NOTE(pryazha): Update */
+	if (key_is_pressed(input->exit))
+		input->is_running = 0;
+
+	/* NOTE(pryazha): Render */
+	glClearColor(0.15f, 0.15f, 0.15f, 1.0f);
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	glUseProgram(state->shader);
+	F32 angle = 20.0f*state->t;
+	Mat4 model = mat4rotate(MAT4_IDENTITY, v3(0.0f, 0.0f, angle));
+	shader_set_mat4fv(state->shader, "model", model);
+	mesh_draw(*state->the_mesh);
+	glUseProgram(0);
+
+	state->t += input->dt;
+}
+
+void game_clear(State *state)
+{
+	arena_release(state->persistent_arena);
+}
diff --git a/src/game/game.h b/src/game/game.h
new file mode 100644
index 0000000..b37798d
--- /dev/null
+++ b/src/game/game.h
@@ -0,0 +1,11 @@
+#ifndef GAME_H
+#define GAME_H
+
+typedef struct {
+	Arena *persistent_arena;
+	U32 shader;
+	Mesh *the_mesh;
+	F32 t;
+} State;
+
+#endif /* GAME_H */