guess that's all

6 files changed, 137 insertions, 0 deletions

diff --git a/in_practice/breakout/shaders/particle.frag b/in_practice/breakout/shaders/particle.frag
new file mode 100644
index 0000000..ef62554
--- /dev/null
+++ b/in_practice/breakout/shaders/particle.frag
@@ -0,0 +1,15 @@
+#version 330 core
+
+in vert_t {
+	vec2 tex_coords;
+	vec4 color;
+} vert;
+
+out vec4 frag_color;
+
+uniform sampler2D sprite;
+
+void main()
+{
+	frag_color = texture(sprite, vert.tex_coords) * vert.color;
+}
diff --git a/in_practice/breakout/shaders/particle.vert b/in_practice/breakout/shaders/particle.vert
new file mode 100644
index 0000000..9827a95
--- /dev/null
+++ b/in_practice/breakout/shaders/particle.vert
@@ -0,0 +1,20 @@
+#version 330 core
+
+layout (location = 0) in vec4 vertex;
+
+out vert_t {
+	vec2 tex_coords;
+	vec4 color;
+} vert;
+
+uniform mat4 projection;
+uniform vec2 offset; 
+uniform vec4 color;
+
+void main()
+{
+	float scale = 10.0;
+	vert.tex_coords = vertex.zw;
+	vert.color = color;
+	gl_Position = projection * vec4((vertex.xy * scale) + offset, 0.0, 1.0);
+}
diff --git a/in_practice/breakout/shaders/post.frag b/in_practice/breakout/shaders/post.frag
new file mode 100644
index 0000000..899b098
--- /dev/null
+++ b/in_practice/breakout/shaders/post.frag
@@ -0,0 +1,38 @@
+#version 330 core
+
+in vert_t {
+	vec2 tex_coords;
+} vert;
+
+out vec4 frag_color;
+
+uniform sampler2D colorbuffer;
+uniform vec2 offsets[9];
+uniform int edge_kernel[9];
+uniform float blur_kernel[9];
+
+uniform bool chaos;
+uniform bool confuse;
+uniform bool shake;
+
+void main()
+{
+	frag_color = vec4(0.0);
+	vec3 sample[9];
+	if (chaos || shake)
+		for (int i = 0; i < 9; i++)
+			sample[i] = vec3(texture(colorbuffer, vert.tex_coords + offsets[i]));
+	if (chaos) {
+		for (int i = 0; i < 9; i++)
+			frag_color += vec4(sample[i] * edge_kernel[i], 0.0);
+		frag_color.a = 1.0;
+	} else if (confuse) {
+		frag_color = vec4(1.0 - texture(colorbuffer, vert.tex_coords).rgb, 1.0);
+	} else if (shake) {
+		for (int i = 0; i < 9; i++)
+			frag_color += vec4(sample[i] * blur_kernel[i], 0.0);
+		frag_color.a = 1.0;
+	} else {
+		frag_color = texture(colorbuffer, vert.tex_coords);
+	}
+}
diff --git a/in_practice/breakout/shaders/post.vert b/in_practice/breakout/shaders/post.vert
new file mode 100644
index 0000000..7a8ac4f
--- /dev/null
+++ b/in_practice/breakout/shaders/post.vert
@@ -0,0 +1,33 @@
+#version 330 core
+
+layout (location = 0) in vec4 vertex;
+
+out vert_t {
+	vec2 tex_coords;
+} vert;
+
+uniform bool chaos;
+uniform bool confuse;
+uniform bool shake;
+uniform float time;
+
+void main()
+{
+	gl_Position = vec4(vertex.xy, 0.0, 1.0);
+	vec2 texture = vertex.zw;
+	if (chaos) {
+		float strength = 0.3;
+		vec2 pos = vec2(texture.x + sin(time) * strength,
+			texture.y + cos(time) * strength);
+		vert.tex_coords = pos;
+	} else if (confuse) {
+		vert.tex_coords = vec2(1.0) - texture;
+	} else {
+		vert.tex_coords = texture;
+	}
+	if (shake) {
+		float strength = 0.01;
+		gl_Position.x += cos(time * 10) * strength;
+		gl_Position.y += cos(time * 15) * strength;
+	}
+}
diff --git a/in_practice/breakout/shaders/text.frag b/in_practice/breakout/shaders/text.frag
new file mode 100644
index 0000000..a6fae4b
--- /dev/null
+++ b/in_practice/breakout/shaders/text.frag
@@ -0,0 +1,16 @@
+#version 330 core
+
+in vert_t {
+	vec2 tex_coords;
+} vert;
+
+out vec4 frag_color;
+
+uniform sampler2D glyph;
+uniform vec3 text_color;
+
+void main()
+{
+	vec4 glyph_color = vec4(1.0, 1.0, 1.0, texture(glyph, vert.tex_coords).r);
+	frag_color = vec4(text_color, 1.0) * glyph_color;
+}
diff --git a/in_practice/breakout/shaders/text.vert b/in_practice/breakout/shaders/text.vert
new file mode 100644
index 0000000..aa22caa
--- /dev/null
+++ b/in_practice/breakout/shaders/text.vert
@@ -0,0 +1,15 @@
+#version 330 core
+
+layout(location = 0) in vec4 vertex;
+
+out vert_t {
+	vec2 tex_coords;
+} vert;
+
+uniform mat4 projection;
+
+void main()
+{
+	gl_Position = projection * vec4(vertex.xy, 0.0, 1.0);
+	vert.tex_coords = vertex.zw;
+}