From 957c64c7b8b5e98d8a03dd84c7e27e7991fb9dbc Mon Sep 17 00:00:00 2001
From: iamcheeseman <dev@iamcheeseman.net>
Date: Mon, 6 Apr 2026 17:04:05 -0400
Subject: Initial commit

---
 micro/context.c | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 micro/context.c

(limited to 'micro/context.c')

diff --git a/micro/context.c b/micro/context.c
new file mode 100644
index 0000000..226b942
--- /dev/null
+++ b/micro/context.c
@@ -0,0 +1,114 @@
+#include "context.h"
+#include "renderer.h"
+
+#include <math.h>
+
+struct texture tex;
+struct render_texture rtex;
+
+static
+void init_glfw(struct ctx *ctx)
+{
+        if (glfwInit() < 0) {
+                log_fatal(ERR_GLFW_INIT, "could not init GLFW.");
+        }
+
+        glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);
+
+        ctx->win = glfwCreateWindow(
+                ctx->creation_hints.win_width,
+                ctx->creation_hints.win_height,
+                ctx->creation_hints.win_title,
+                NULL,
+                NULL
+        );
+
+        if (!ctx->win) {
+                log_fatal(ERR_GLFW_INIT, "could not create GLFW window.");
+        }
+
+        glfwMakeContextCurrent(ctx->win);
+
+        glfwSwapInterval(0);
+}
+
+static
+void deinit_glfw(struct ctx *ctx)
+{
+        glfwDestroyWindow(ctx->win);
+        glfwTerminate();
+}
+
+void init_ctx(struct ctx *ctx, struct ctx_hints creation_hints)
+{
+        ctx->creation_hints = creation_hints;
+        ctx->ticrate = 1.0 / creation_hints.ticrate;
+        ctx->prev_tic_ts = 0;
+        init_glfw(ctx);
+        init_renderer(&ctx->renderer, ctx);
+
+        tex = load_texture("test_img.qoi");
+        rtex = create_render_texture(320, 320, false);
+}
+
+void deinit_ctx(struct ctx *ctx)
+{
+        free_texture(tex);
+        free_render_texture(rtex);
+        deinit_renderer(&ctx->renderer);
+        deinit_glfw(ctx);
+}
+
+bool is_game_running(struct ctx *ctx)
+{
+        return !glfwWindowShouldClose(ctx->win);
+}
+
+int game_tick(struct ctx *ctx)
+{
+        double current_time = glfwGetTime();
+        double time_since_tic = current_time - ctx->prev_tic_ts;
+
+        int tics = time_since_tic / ctx->ticrate;
+        if (tics > 0) {
+                ctx->prev_tic_ts = current_time;
+                glfwPollEvents();
+        }
+        return tics;
+}
+
+void game_draw(struct ctx *ctx)
+{
+        bind_render_texture(&ctx->renderer, NULL);
+
+        draw_clear((struct color){0.2, 0.2, 0.2, 1});
+
+        bind_render_texture(&ctx->renderer, &rtex);
+                draw_clear((struct color){
+                        1 - (cos(glfwGetTime()) + 1) / 2,
+                        (sin(glfwGetTime()) + 1) / 2,
+                        (cos(glfwGetTime()) + 1) / 2,
+                        1
+                });
+
+                draw_rect(&ctx->renderer, 10, 10, 50, 50);
+
+                set_blend_mode(&ctx->renderer, BLEND_ADD);
+                draw_texture(&ctx->renderer, tex, 100, 100);
+                draw_texture(&ctx->renderer, tex, 104, 104);
+
+                set_blend_mode(&ctx->renderer, BLEND_ALPHA);
+                draw_texture(&ctx->renderer, tex, 100, 121);
+        bind_render_texture(&ctx->renderer, NULL);
+
+        draw_texture(
+                &ctx->renderer,
+                rtex.color,
+                (400 - 320 * 0.5) + sin(glfwGetTime()) * 100,
+                200 - 320 * 0.5
+        );
+
+        end_draw(&ctx->renderer);
+
+        glfwSwapBuffers(ctx->win);
+}
-- 
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