From 3375d712e40cce1d17198ba20839f58a2a77d202 Mon Sep 17 00:00:00 2001
From: Xander Swan <no email>
Date: Fri, 5 Dec 2025 09:27:12 -0500
Subject: add platforms and AABB collision

---
 src/draw/draw.odin | 60 +++++++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 48 insertions(+), 12 deletions(-)

(limited to 'src/draw/draw.odin')

diff --git a/src/draw/draw.odin b/src/draw/draw.odin
index d67e16c..1762b25 100644
--- a/src/draw/draw.odin
+++ b/src/draw/draw.odin
@@ -1,6 +1,5 @@
 package draw
 
-import "core:fmt"
 import "core:math/linalg"
 import "core:math"
 
@@ -20,8 +19,8 @@ Mat4 :: matrix[4, 4]f32
 
 Color :: [4]f32
 
-SCREEN_WIDTH :: 256
-SCREEN_HEIGHT :: 256
+SCREEN_WIDTH :: 480
+SCREEN_HEIGHT :: 360
 
 Renderer :: struct {
   screen: Framebuffer,
@@ -34,6 +33,8 @@ Renderer :: struct {
   view: sg.View,
   sampler: sg.Sampler,
 
+  white_1x1: sg.Image,
+
   projection: Mat4,
   current_batch: Batch,
 
@@ -69,6 +70,18 @@ init :: proc(r: ^Renderer) {
     },
   }
 
+  white := [?]u8{255, 255, 255, 255}
+
+  r.white_1x1 = sg.make_image({
+    width = 1,
+    height = 1,
+    data = {
+      mip_levels = {
+        0 = {ptr=&white, size=size_of(white)},
+      },
+    },
+  })
+
   init_framebuffer(
     &r.screen,
     SCREEN_WIDTH, SCREEN_HEIGHT,
@@ -125,7 +138,7 @@ end_frame :: proc(r: ^Renderer) {
     (f32(sapp.height()) - (SCREEN_HEIGHT * scale)) / 2,
   }
 
-  draw_texture(
+  texture(
     r,
     r.screen.img,
     screen_start,
@@ -210,12 +223,37 @@ batch_vertices :: proc(
   append(&b.vertices, ..vertices)
 }
 
-draw_texture :: proc{
-  draw_texture_full,
-  draw_texture_quad,
+rect :: proc(
+  r: ^Renderer,
+  rect: Rect,
+  color := Color{1, 1, 1, 1},
+) {
+  assert(rect.size.x > 0 && rect.size.y > 0)
+
+  batch := request_batch(r, r.white_1x1)
+
+  start := rect.start
+  end := rect.start + rect.size
+  
+  vertices := [?]Vertex{
+    {start,            {0, 0}, r.tint},
+    {{end.x, start.y}, {1, 0}, r.tint},
+    {{start.x, end.y}, {0, 1}, r.tint},
+
+    {{end.x, start.y}, {1, 0}, r.tint},
+    {{start.x, end.y}, {0, 1}, r.tint},
+    {end,              {1, 1}, r.tint},
+  }
+
+  batch_vertices(batch, vertices[:])
+}
+
+texture :: proc{
+  texture_full,
+  texture_quad,
 }
 
-draw_texture_quad :: proc(
+texture_quad :: proc(
   r: ^Renderer,
   img: sg.Image, 
   quad: Rect,
@@ -252,7 +290,7 @@ draw_texture_quad :: proc(
   batch_vertices(batch, vertices[:])
 }
 
-draw_texture_full :: proc(
+texture_full :: proc(
   r: ^Renderer,
   img: sg.Image, 
   pos: Vec2,
@@ -263,7 +301,5 @@ draw_texture_full :: proc(
     f32(sg.query_image_width(img)),
     f32(sg.query_image_height(img)),
   }
-  draw_texture_quad(r, img, Rect{Vec2{0, 0}, size}, pos, offset, scale)
+  texture_quad(r, img, Rect{Vec2{0, 0}, size}, pos, offset, scale)
 }
-
-
-- 
cgit v1.3-2-g0d8e