implement interaction/menus

Makefile

@@ -62,7 +62,8 @@ OBJS = \
 	src/font/outline.o \
 	src/renpy/vulkan.o \
 	src/renpy/script.o \
-	src/renpy/interpreter.o
+	src/renpy/interpreter.o \
+	src/renpy/interact.o
 
 WORLDS = \
 	data/minecraft/midnightmeadow/inthash.o \

include/renpy/interact.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include "renpy/interpreter.h"
+
+namespace renpy {
+
+  namespace menu {
+    constexpr int width = 480;
+    constexpr int height = 40;
+    constexpr int x = 400;
+    constexpr int y = 100;
+    constexpr int yStride = 100;
+  };
+
+  bool overlap(int width, int height, int x, int y, int mx, int my);
+  void update(interpreter & state, int mx, int my, bool mLeft);
+}

include/renpy/interpreter.h

@@ -40,6 +40,7 @@ namespace renpy {
       uint32_t count;
       uint32_t optionIndex;
     } menu;
+    bool interactionWait;
 
     uint32_t findImage(uint32_t imageIndex);
     void showImage(uint32_t imageIndex, uint32_t transformIndex);

include/renpy/vulkan.h

@@ -82,7 +82,9 @@ namespace renpy {
     void create_instance_buffers();
     void draw(VkCommandBuffer commandBuffer,
               uint32_t frameIndex,
-              renpy::interpreter const& state);
+              renpy::interpreter const& state,
+              int mx,
+              int my);
 
   };
 }

shader/renpy.hlsl

@@ -34,7 +34,7 @@ VSOutput VSMain(VSInput input)
   output.Position = float4(position * 2.0 - 1.0, 0, 1);
   output.Texture = texture;
   output.TextureIndex = input.TextureIndex;
-  output.Color = input.Color;
+  output.Color = input.Color.zyxw;
 
   return output;
 }
@@ -44,8 +44,8 @@ float4 PSGradient1(VSOutput input) : SV_TARGET
   float a = smoothstep(0.05, 0.2, input.Texture.x);
   float b = 1.0 - smoothstep(0.8, 0.95, input.Texture.x);
   float c = smoothstep(0.05, 0.2, input.Texture.y);
-  float d = a * b * c * 0.5;
-  float3 color = float3(1.0, 1.0, 1.0);
+  float d = a * b * c * input.Color.w;
+  float3 color = input.Color.xyz;
   return float4(color, d);
 }
 
@@ -53,8 +53,8 @@ float4 PSGradient2(VSOutput input) : SV_TARGET
 {
   float a = smoothstep(0.05, 0.2, input.Texture.x);
   float b = 1.0 - smoothstep(0.8, 0.95, input.Texture.x);
-  float d = a * b * 0.5;
-  float3 color = float3(1.0, 1.0, 1.0);
+  float d = a * b * input.Color.w;
+  float3 color = input.Color.xyz;
   return float4(color, d);
 }
 
@@ -62,8 +62,8 @@ float4 PSGradient3(VSOutput input) : SV_TARGET
 {
   float a = smoothstep(0.02, 0.1, input.Texture.x);
   float b = 1.0 - smoothstep(0.9, 0.98, input.Texture.x);
-  float d = a * b * 0.5;
-  float3 color = float3(1.0, 1.0, 1.0);
+  float d = a * b * input.Color.w;
+  float3 color = input.Color.xyz;
   return float4(color, d);
 }
 

src/main.cpp

@@ -23,6 +23,7 @@
 #include "font/outline.h"
 #include "renpy/vulkan.h"
 #include "renpy/interpreter.h"
+#include "renpy/interact.h"
 
 #include "scenes/shadow_test/shadow_test.h"
 #include "scenes/eidelwind/eidelwind.h"
@@ -723,7 +724,6 @@ int main()
 
   renpy::interpreter interpreter_state;
   interpreter_state.reset();
-  interpreter_state.interpret();
 
   //////////////////////////////////////////////////////////////////////
   // initialize view
@@ -767,6 +767,8 @@ int main()
   //collada_state.update(0);
 
   while (quit == false) {
+    interpreter_state.interpret();
+
     SDL_Event event;
     while (SDL_PollEvent(&event)) {
       if (event.type == SDL_EVENT_QUIT) {
@@ -1082,7 +1084,12 @@ int main()
 
     //minecraft_state.draw(commandBuffer, frameIndex);
 
-    renpy_state.draw(commandBuffer, frameIndex, interpreter_state);
+    float mx;
+    float my;
+    uint32_t mouseFlags = SDL_GetMouseState(&mx, &my);
+    bool mLeft = (mouseFlags & SDL_BUTTON_LMASK) != 0;
+    renpy::update(interpreter_state, mx, my, mLeft);
+    renpy_state.draw(commandBuffer, frameIndex, interpreter_state, mx, my);
     font_state.draw(commandBuffer, frameIndex, interpreter_state);
 
     vkCmdEndRendering(commandBuffer);

src/renpy/interact.cpp

@@ -0,0 +1,47 @@
+#include <assert.h>
+#include <stdio.h>
+
+#include "renpy/script.h"
+#include "renpy/interact.h"
+
+namespace renpy {
+  bool overlap(int width, int height, int x, int y, int mx, int my)
+  {
+    int minX = x;
+    int minY = y;
+    int maxX = x + width;
+    int maxY = y + height;
+
+    return mx >= minX && mx <= maxX && my >= minY && my <= maxY;
+  }
+
+  static bool lastmLeft = false;
+
+  void update(interpreter & state, int mx, int my, bool mLeft)
+  {
+    bool mDown = mLeft && (!lastmLeft);
+    lastmLeft = mLeft;
+    if (mDown) {
+      state.interactionWait = false;
+    }
+
+    if (state.menu.count == 0 || !mDown)
+      return;
+
+    for (uint32_t i = 0; i < state.menu.count; i++) {
+      int y = menu::yStride * i + menu::y;
+
+      bool overlap = renpy::overlap(menu::width, menu::height, menu::x, y, mx, my);
+      if (overlap) {
+        // jump to menu item
+        uint32_t optionIndex = state.menu.optionIndex + i;
+        assert(optionIndex < (uint32_t)script::options_length);
+        uint32_t next_pc = script::options[optionIndex].statementIndex;
+        fprintf(stderr, "interact[%d]: menu jump %d\n", state.pc, next_pc);
+        state.pc = next_pc;
+        state.menu.count = 0;
+        break;
+      }
+    }
+  }
+}

src/renpy/interpreter.cpp

@@ -14,6 +14,7 @@ namespace renpy {
     say.stringIndex = -1;
     say.characterIndex = -1;
     menu.count = 0;
+    interactionWait = false;
   }
 
   uint32_t interpreter::findImage(uint32_t imageIndex)
@@ -86,6 +87,7 @@ namespace renpy {
       assert(statement.say.stringIndex < (uint32_t)script::strings_length);
       say.stringIndex = statement.say.stringIndex;
       say.characterIndex = statement.say.characterIndex;
+      interactionWait = true;
       pc += 1;
       break;
     case language::type::hide:
@@ -110,6 +112,11 @@ namespace renpy {
       menu.optionIndex = statement.menu.optionIndex;
       pc += 1;
       break;
+    case language::type::jump:
+      fprintf(stderr, "interpret_one[%d]: jump %d\n", pc, statement.jump.statementIndex);
+      assert(statement.jump.statementIndex < (uint32_t)script::statements_length);
+      pc = statement.jump.statementIndex;
+      break;
     default:
       fprintf(stderr, "unknown statement type at pc %d\n", pc);
       pc += 1;
@@ -119,16 +126,13 @@ namespace renpy {
 
   void interpreter::interpret()
   {
-    while (true) {
+    while (!interactionWait) {
+    //while (true) {
       uint32_t last_pc = pc;
       interpret_one();
       assert(pc != last_pc);
 
-      if (pc == 17) {
-        break;
-      }
-      //if (stop)
-      //break;
+      //if (pc == 18) break;
     }
   }
 };

src/renpy/vulkan.cpp

@@ -11,6 +11,7 @@
 
 #include "renpy/vulkan.h"
 #include "renpy/script.h"
+#include "renpy/interact.h"
 
 namespace renpy {
   static const _Float16 vertexData[] = {
@@ -510,7 +511,9 @@ namespace renpy {
 
   void vulkan::draw(VkCommandBuffer commandBuffer,
                     uint32_t frameIndex,
-                    renpy::interpreter const& state)
+                    renpy::interpreter const& state,
+                    int mx,
+                    int my)
   {
     int outputIndex = 0;
     // update
@@ -534,6 +537,7 @@ namespace renpy {
       instanceMappedData[maximumImageCount * frameIndex + outputIndex++] = {
         .size = {708, 200},
         .topLeft = {286, 720 - 200},
+        .color = 0x80ffffffu,
         .imageIndex = -2, // white gradient 1
       };
       instanceMappedData[maximumImageCount * frameIndex + outputIndex++] = {
@@ -551,14 +555,19 @@ namespace renpy {
         instanceMappedData[maximumImageCount * frameIndex + outputIndex++] = {
           .size = {148, 30},
           .topLeft = {560, 528},
+          .color = 0x80ffffffu,
           .imageIndex = -4, // white gradient 2
         };
       }
     } else {
       for (uint32_t i = 0; i < state.menu.count; i++) {
+        int y = menu::yStride * i + menu::y;
+
+        bool overlap = renpy::overlap(menu::width, menu::height, menu::x, y, mx, my);
         instanceMappedData[maximumImageCount * frameIndex + outputIndex++] = {
-          .size = {480, 40},
-          .topLeft = {400, (int16_t)(100 * i + 100)},
+          .size = {menu::width, menu::height},
+          .topLeft = {menu::x, (int16_t)(y)},
+          .color = overlap ? 0xf0494493u : 0xa0ffffffu,
           .imageIndex = -3, // white gradient 2
         };
       }