Commit graph

125 commits

Author SHA1 Message Date
Christoph Oelckers
a8ac6e4774 - converted dynamic light definitions. 2016-11-15 11:43:35 +01:00
Christoph Oelckers
ac86a535e7 - fixed: State labels were resolved in the calling function's context instead of the called function one's.
This could cause problems with functions that take states as parameters but use them to set them internally instead of passing them through the A_Jump interface back to the caller, like A_Chase or A_LookEx.
This required some quite significant refactoring because the entire state resolution logic had been baked into the compiler which turned out to be a major maintenance problem.
Fixed this by adding a new builtin type 'statelabel'. This is an opaque identifier representing a state, with the actual data either directly encoded into the number for single label state or an index into a state information table.
The state resolution is now the task of the called function as it should always have remained. Note, that this required giving back the 'action' qualifier to most state jumping functions.

- refactored most A_Jump checkers to a two stage setup with a pure checker that returns a boolean and a scripted A_Jump wrapper, for some simpler checks the checker function was entirely omitted and calculated inline in the A_Jump function. It is strongly recommended to use the boolean checkers unless using an inline function invocation in a state as they lead to vastly clearer code and offer more flexibility.

- let Min() and Max() use the OP_MIN and OP_MAX opcodes. Although these were present, these function were implemented using some grossly inefficient branching tests.
- the DECORATE 'state' cast kludge will now actually call ResolveState because a state label is not a state and needs conversion.
2016-11-14 14:12:27 +01:00
Christoph Oelckers
f8ccda2dc8 - scriptified A_Mushroom to test something a bit more complex.
- fixed: FxMinusSign trashed local variables that were used with negation.
- fixed: FxConditional only handled ints and floats, but not pointers and strings.
- fixed: A 'no states in non-actors' error was triggered, even for classes without any states.
2016-10-30 14:00:11 +01:00
Christoph Oelckers
853c6f6684 - fixed initialization of local variables with other local variables.
- fixed several occurenced where vectors were treated as floats. NOTE: The entire codegen.cpp file needs to be carefully reviewed for bad use of the REGT_ constants, there's probably more places where using them has broken some type checks.
- fixed: committed test version of zscript.txt instead of changed actor.txt by accident.

Initialization and assignment for strings is working with this commit.
2016-10-29 16:49:21 +02:00
Christoph Oelckers
f5d1b1a491 - added vector builtins Length() and Unit().
This should complete the vector type except for use as function parameter.
2016-10-29 10:43:22 +02:00
Christoph Oelckers
449dfc3cdc - removed test file from zscript.txt. 2016-10-25 13:30:22 +02:00
Christoph Oelckers
656b8cb16e - added explicit setter functions for the count and link flags so that A_ChangeFlag and A_SetFlag can be deprecated. 2016-10-25 10:15:24 +02:00
Christoph Oelckers
46c7f1151f - restored zscript.txt. 2016-10-23 12:58:03 +02:00
Christoph Oelckers
f9cd2c9af7 - added switch/case processing. Right now it is just a sequence of test/jmp instructions. It may make sense to add a special opcode that can perform the comparisons natively but that's an option for later.
- added a TESTN instruction. This is like TEST but negates the operand. This was added to avoid flooding the constant table with too many case labels. With TEST and TESTN combined, all numbers between -65535 and 65535 can be kept entirely inside the instruction. Numbers outside this range still use a BEQ instruction.
2016-10-23 12:00:25 +02:00
Christoph Oelckers
f6b3cdc23d - converted the Chex Quest actors, completing the DECORATE conversion. 2016-10-18 23:22:41 +02:00
Christoph Oelckers
5643831ccc - converted all Strife actors. 2016-10-18 23:05:58 +02:00
Christoph Oelckers
1bdc1ccb6c - converted the remaining Hexen actors. 2016-10-18 18:11:13 +02:00
Christoph Oelckers
2c1d9a7a96 - another bunch of Hexen actors converted. 2016-10-18 15:15:06 +02:00
Christoph Oelckers
61cc7dbb29 - another batch of Hexen items converted.
- fixed parsing of named damage types and pain chances.
2016-10-18 10:09:02 +02:00
Christoph Oelckers
4aecc4f565 - more Hexen conversions. 2016-10-18 00:49:13 +02:00
Christoph Oelckers
d66631478a - converted some Hexen stuff. 2016-10-17 23:27:34 +02:00
Christoph Oelckers
552f094ec1 - converted the rest of Heretic's actors.
- fixed: Boolean constants were not properly handled.
2016-10-17 12:58:23 +02:00
Christoph Oelckers
c13916ea18 - converted more Heretic actors. 2016-10-17 10:07:12 +02:00
Christoph Oelckers
76f1b9d3f8 - converted the raven actors. 2016-10-17 00:21:52 +02:00
Christoph Oelckers
6650e2bbfb - converted some Heretic stuff to ZScript for testing.
- added type casts to the arguments of function calls.
- added string constant to state conversion to FxTypeCast.
2016-10-16 22:32:52 +02:00
Christoph Oelckers
afd9347087 - changed order of script files to match the old DECORATE list for easy comparison of the disassembly.
- added a descriptive name to all types for error messages.
- added a generic type cast node to the code generator.
- added a few more cast operations to the 'cast' VM instruction.
- extended FxClassTypeCast to handle all possible input that can be cast to a class pointer, not just names.
2016-10-16 19:42:22 +02:00
Christoph Oelckers
784f7ed671 - converted all of Doom's actors.
- fixed a few problems that were encountered during conversion:
 * action specials as action functions were not recognized by the parser.
 * Player.StartItem could not be parsed.
 * disabled the naming hack for PowerupType. ZScript, unlike DECORATE will never prepend 'Power' to the power's name, it always needs to specified by its full name.
 * states and defaults were not checked for empty bodies.
 * the scope qualifier for goto labels was not properly converted to a string, because it is an ENamedName, not an FName.
2016-10-14 20:08:41 +02:00
Christoph Oelckers
9e2830a3db - converted the rest of actors/shared.
- moved damagetype definitions to MAPINFO. These were in DECORATE which is not correct. The old code is left for compatibility.
2016-10-14 10:46:15 +02:00
Christoph Oelckers
7de683f9f5 - converted a few more DECORATE files.
- started with the AST converter. So far it only deals with direct function calls with simple constants as parameters.
- added an error condition for the defaults block to get rid of some asserts.
2016-10-14 00:40:20 +02:00
Christoph Oelckers
433bf46010 - removed token 'mode' because it isn't used anywhere and clashed with some actor properties.
- fixed uninitialized counter variable in DECORATE parser.
- allow dottable_id of xxx.color so that the property parser can parse 'powerup.color'.
- fixed crash with actor replacement in script compiler.
- add the lump number to tree nodes because parts of the property parser need that to make decisions.
- removed test stuff.
- converted inventory.txt, player.txt and specialspot.txt to ZSCRIPT. These were the minimal files required to allow actor.txt to parse successfully.
- removed the converted files from the DECORATE include list so that these are entirely handled by ZSCRIPT now.
2016-10-13 20:45:52 +02:00