1 files changed, 67 insertions, 0 deletions
diff --git a/src/graphic.c b/src/graphic.c
new file mode 100644
index 0000000..b58c08c
--- /dev/null
+++ b/src/graphic.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2022 Frederico de Oliveira Linhares
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "graphic.h"
+
+#include "color.h"
+
+static mrb_value
+cg_mGraphic_set_color(mrb_state *mrb, mrb_value self)
+{
+  struct cg_color *color;
+  mrb_get_args(mrb, "d", &color, &cg_color_type);
+
+  SDL_SetRenderDrawColor(
+    cg_core.renderer, color->data.r, color->data.g, color->data.b,
+    color->data.a);
+
+  return self;
+}
+
+static mrb_value
+cg_mGraphic_draw_point(mrb_state *mrb, mrb_value self)
+{
+  mrb_int x, y;
+  mrb_get_args(mrb, "ii", &x, &y);
+  SDL_RenderDrawPoint(cg_core.renderer, x, y);
+
+  return self;
+}
+
+static mrb_value
+cg_mGraphic_draw_line(mrb_state *mrb, mrb_value self)
+{
+  mrb_int x1, y1, x2, y2;
+  mrb_get_args(mrb, "iiii", &x1, &y1, &x2, &y2);
+  SDL_RenderDrawLine(cg_core.renderer, x1, y1, x2, y2);
+
+  return self;
+}
+
+void
+cg_graphic_init(mrb_state *mrb)
+{
+  struct RClass *cg_m, *cg_mGraphic;
+
+  cg_m = mrb_module_get(mrb, "CandyGear");
+  cg_mGraphic = mrb_define_module_under(mrb, cg_m, "Graphic");
+  mrb_define_class_method(
+    mrb, cg_mGraphic, "set_color", cg_mGraphic_set_color, MRB_ARGS_REQ(1));
+  mrb_define_class_method(
+    mrb, cg_mGraphic, "draw_point", cg_mGraphic_draw_point, MRB_ARGS_REQ(2));
+  mrb_define_class_method(
+    mrb, cg_mGraphic, "draw_line", cg_mGraphic_draw_line, MRB_ARGS_REQ(4));
+}