X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=fishladder.c;h=7f49563a4e819977c5524caf71acde04f267e5e5;hb=56d6d59869fcdd9d23b0135e3262d9d29c218e05;hp=a9ce03a8dbc245a27f1f7ee670b298d1e2bcf06e;hpb=f17b92e32e2edae3692d5ea87844fbdf4a779952;p=fishladder.git

diff --git a/fishladder.c b/fishladder.c
index a9ce03a..7f49563 100644
--- a/fishladder.c
+++ b/fishladder.c
@@ -3,27 +3,109 @@
 //#define VG_STEAM
 #include "vg/vg.h"
 
+SHADER_DEFINE( colour_shader, 
+
+	// VERTEX
+	"layout (location=0) in vec3 a_co;"
+	"uniform mat4 uPvm;"
+	""
+	"void main()"
+	"{"
+	"	vec4 vert_pos = uPvm * vec4( a_co, 1.0 );"
+	"	gl_Position = vert_pos;"
+	"}",
+	
+	// FRAGMENT
+	"out vec4 FragColor;"
+	"uniform vec4 uColour;"
+	""
+	"void main()"
+	"{"
+	"	FragColor = uColour;"
+	"}"
+	,
+	UNIFORMS({ "uPvm", "uColour" })
+)
+
+mat4 m_projection;
+mat4 m_view;
+mat4 m_pv;
+
 int main( int argc, char *argv[] )
 {
 	vg_init( argc, argv, "FishLadder" );
 }
 
-void vg_start(void)
+void vg_update(void)
 {
+	// Update camera
+	float ratio = (float)vg_window_y / (float)vg_window_x;
+	float const size = 7.5f;
+	glm_ortho( -size, size, -size*ratio, size*ratio, 0.1f, 100.f, m_projection );
 
+	glm_mat4_identity( m_view );
+	glm_translate_z( m_view, -10.f );
+	glm_rotate_x( m_view, -1.0f, m_view );
+	
+	glm_mat4_mul( m_projection, m_view, m_pv );
 }
 
-void vg_update(void)
-{
+GLuint tile_vao;
+GLuint tile_vbo;
 
+void vg_render(void)
+{
+	glEnable( GL_DEPTH_TEST );
+	glClearColor( 0.94f, 0.94f, 0.94f, 1.0f );
+	glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+	
+	SHADER_USE( colour_shader );
+	glUniformMatrix4fv( SHADER_UNIFORM( colour_shader, "uPvm" ), 1, GL_FALSE, (float *)m_pv );
+	glUniform4f( SHADER_UNIFORM( colour_shader, "uColour" ), 0.5f, 0.5f, 0.5f, 1.0f );
+	
+	glBindVertexArray( tile_vao );
+	glDrawArrays( GL_TRIANGLES, 0, 6 );
 }
 
-void vg_render(void)
+void vg_start(void)
 {
+	SHADER_INIT( colour_shader );
+	
+	glGenVertexArrays( 1, &tile_vao );
+	glGenBuffers( 1, &tile_vbo );
+	
+	float quad_mesh[] =
+	{
+		-0.5f, 0.f, -0.5f,
+		-0.5f, 0.f, 0.5f,
+		 0.5f, 0.f, 0.5f,
+		-0.5f, 0.f, -0.5f,
+		 0.5f, 0.f, 0.5f,
+		 0.5f, 0.f, -0.5f
+	};
+	
+	glBindVertexArray( tile_vao );
+	glBindBuffer( GL_ARRAY_BUFFER, tile_vbo );
+	glBufferData
+	(
+		GL_ARRAY_BUFFER,
+		sizeof( quad_mesh ),
+		quad_mesh,
+		GL_STATIC_DRAW
+	);
 	
+	glVertexAttribPointer( 0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0 );
+	glEnableVertexAttribArray( 0 );
+	
+	VG_CHECK_GL();
 }
 
 void vg_free(void)
 {
 	
 }
+
+void vg_ui(void)
+{
+	
+}