feat Add support for bitmap text

4 files changed, 175 insertions, 0 deletions

diff --git a/src/blu_cat/gra/bitmap_character.cpp b/src/blu_cat/gra/bitmap_character.cpp
new file mode 100644
index 0000000..d5352a0
--- /dev/null
+++ b/src/blu_cat/gra/bitmap_character.cpp
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2022-2025 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 "bitmap_character.hpp"
+
+namespace BluCat::GRA
+{
+
+BitmapCharacter::BitmapCharacter(
+	F32 x, F32 y, F32 width, F32 height,
+	std::shared_ptr<BluCat::GRA::Texture> texture):
+	width{width},
+	height{height},
+	sprite{std::make_shared<Sprite>(
+			texture, glm::vec4(
+				x / texture->width,
+				y / texture->height,
+				(x + width)  / texture->width,
+				(y + height)  / texture->height))}
+{
+}
+
+}
diff --git a/src/blu_cat/gra/bitmap_character.hpp b/src/blu_cat/gra/bitmap_character.hpp
new file mode 100644
index 0000000..31f88ed
--- /dev/null
+++ b/src/blu_cat/gra/bitmap_character.hpp
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2022-2025 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.
+ */
+
+#ifndef BLU_CAT_GRA_BITMAP_CHARACTER_H
+#define BLU_CAT_GRA_BITMAP_CHARACTER_H 1
+
+#include <memory>
+#include <vector>
+
+#include "../com/numbers.hpp"
+#include "sprite.hpp"
+
+namespace BluCat::GRA
+{
+
+struct BitmapCharacter
+{
+	F32 width, height;
+	std::shared_ptr<BluCat::GRA::Sprite> sprite;
+
+	BitmapCharacter(F32 x, F32 y, F32 width, F32 height,
+									std::shared_ptr<BluCat::GRA::Texture> texture);
+};
+
+}
+
+#endif /* BLU_CAT_GRA_BITMAP_CHARACTER_H */
diff --git a/src/blu_cat/gra/bitmap_font.cpp b/src/blu_cat/gra/bitmap_font.cpp
new file mode 100644
index 0000000..0cafc2a
--- /dev/null
+++ b/src/blu_cat/gra/bitmap_font.cpp
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2022-2025 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 "bitmap_font.hpp"
+
+#include <format>
+
+namespace BluCat::GRA
+{
+
+void
+BitmapFont::add_letters(
+	const char *texture_path, std::span<NewBitmapCharacter> characters)
+{
+	std::shared_ptr<BluCat::GRA::Texture> texture{
+		std::make_shared<BluCat::GRA::Texture>(texture_path)};
+	this->textures.push_back(texture);
+
+	for(NewBitmapCharacter &ch: characters)
+		this->characters.insert({
+				ch.code, BitmapCharacter(
+					ch.x, ch.y, ch.width, ch.height, texture)});
+}
+
+BitmapFont::BitmapFont(
+	I32F width, I32F height, I32F white_space_width, I32F letter_spacing):
+	width{width},
+	height{height},
+	white_space_width{white_space_width},
+	letter_spacing{letter_spacing}
+	{
+	}
+
+}
diff --git a/src/blu_cat/gra/bitmap_font.hpp b/src/blu_cat/gra/bitmap_font.hpp
new file mode 100644
index 0000000..7918354
--- /dev/null
+++ b/src/blu_cat/gra/bitmap_font.hpp
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2022-2025 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.
+ */
+
+#ifndef BLU_CAT_GRA_BITMAP_FONT_H
+#define BLU_CAT_GRA_BITMAP_FONT_H 1
+
+#include <memory>
+#include <unordered_map>
+#include <vector>
+
+#include "bitmap_character.hpp"
+#include "texture.hpp"
+
+namespace BluCat::GRA
+{
+
+struct NewBitmapCharacter
+{
+	const UI32F code;
+	const F32 x, y, width, height;
+};
+
+struct BitmapFont
+{
+	const I32F width, height, white_space_width, letter_spacing;
+	std::vector<std::shared_ptr<BluCat::GRA::Texture>> textures;
+	std::unordered_map<UI32F, BitmapCharacter> characters;
+
+	void
+	add_letters(
+		const char *texture_path, std::span<NewBitmapCharacter> characters);
+
+	BitmapFont(
+		I32F width, I32F height, I32F white_space_width, I32F letter_spacing);
+};
+
+}
+
+#endif /* BLU_CAT_GRA_BITMAP_FONT_H */