the revival, entityx

1 files changed, 66 insertions, 0 deletions

diff --git a/src/render.cpp b/src/render.cpp
new file mode 100644
index 0000000..0c522f6
--- /dev/null
+++ b/src/render.cpp
@@ -0,0 +1,66 @@
+#include <render.hpp>
+
+static Shader *currentShader = nullptr;
+
+namespace Render {
+
+Shader worldShader;
+Shader textShader;
+
+void initShaders(void)
+{
+    // create the world shader
+    worldShader.create("shaders/world.vert", "shaders/world.frag");
+    worldShader.addUniform("texture");
+    worldShader.addUniform("ortho");
+    worldShader.addUniform("tex_color");
+    worldShader.addUniform("transform");
+    worldShader.addUniform("ambientLight");
+    worldShader.addUniform("lightImpact");
+    worldShader.addUniform("light");
+    worldShader.addUniform("lightColor");
+    worldShader.addUniform("lightSize");
+
+    // create the text shader
+    textShader.create("shaders/new.vert", "shaders/new.frag");
+    textShader.addUniform("sampler");
+    textShader.addUniform("ortho"); // actually not used, ortho in new.vert is mislabeled (actually transform)
+    textShader.addUniform("tex_color");
+    textShader.addUniform("ortho"); // this is transform
+}
+
+void useShader(Shader *s)
+{
+    currentShader = s;
+}
+
+void drawRect(vec2 ll, vec2 ur, float z)
+{
+    GLfloat verts[] = {ll.x, ll.y, z,
+                       ur.x, ll.y, z,
+                       ur.x, ur.y, z,
+
+                       ur.x, ur.y, z,
+                       ll.x, ur.y, z,
+                       ll.x, ll.y, z};
+
+    GLfloat tex[] = {0.0, 1.0,
+                     1.0, 1.0,
+                     1.0, 0.0,
+
+                     1.0, 0.0,
+                     0.0, 0.0,
+                     0.0, 1.0};
+
+    glUniform1i(currentShader->uniform[WU_texture], 0);
+    currentShader->enable();
+
+    glVertexAttribPointer(currentShader->coord, 3, GL_FLOAT, GL_FALSE, 0, verts);
+    glVertexAttribPointer(currentShader->tex, 2, GL_FLOAT, GL_FALSE, 0, tex);
+    glDrawArrays(GL_TRIANGLES, 0, 6);
+
+    currentShader->disable();
+}
+
+
+}